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1. A simplified methodology for the correction of Leaf Area Index (LAI) measurements obtained by ceptometer with reference to Pinus Portuguese forests

Author: Lopes D, Nunes L, Walford N, Aranha J, Sette Carlos J, Viana H, and Hernandez C
Subjects: Leaf Area Index, Ceptometer, Correction, Pinus pinaster, Forestry, SD1-669.5
Abstract: Forest leaf area index (LAI) is a very important structural parameter, controlling many biological and physiological processes associated with vegetation on the Earth’s surface. Its accurate estimation is extremely important for forest managers. There are a widely range of methods for its estimation. One of them is using ground-based instruments like the sunfleck ceptometers, with advantages because it is not a destructive method and is very easy to apply. Although, when applied to Pinus, the most important forest specie in Portugal, LAI is underestimated by these instruments, mainly because of its foliage clumping. Trying to correct this underestimation, some previous studies proposed the multiplication of the measured LAI value by a constant correction factor, while others have only proposed practical advice for a correct use of these instruments. Thus, although unquestionably a practical method for recording LAI, use of the ceptomer is problematic. Age of threes from this database ranged from 74 to 14 years old, representing heterogeneous Pinus stands, at it is usual in Portugal. As assumed by some authors, the LAI obtained from allometric equations is less problematic and was be used to generate a reference LAI in order to develop a new methodology for correcting ceptometer measurements, even considering that is not immune to error because it is site- and specie- specific. This way, LAI data from 102 sampling plots, established across all North of Portugal, representative of the Pinus pinaster forest in Portugal, was collected. This database was divided in 82 sampling plots for the adjustment of the LAI ceptometer correction model and 20 were used for the model validation. This new correction methodology does not assume a constant correction value, unlike previous ones, and indicates that the bias (the difference between the ceptometer and the reference LAI) is estimated as a function of the basal area per unit ground area and that this bias is summed to the estimated value. Being the basal area an easily structural obtainable from forest inventories, this new methodology can be easily applied. The observed LAI of this database ranged from 6.4 to 0.34, once again showing the heterogeneity of the Portuguese Pinus forest. Also in general the research has demonstrated a significant difference in the accuracy of LAI as estimated by ceptometer in relation to reference values, thus measurements for Pinus should be corrected. This study has shown that the estimated Pinus LAI needs a correction and that the new approach improves the LAI ceptometer estimations.
Published: 2014
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2. Global patterns and environmental drivers of forest functional composition

Author: Bouchard, E., Searle, E.B., Drapeau, P., Liang, J., Gamarra, J.G.P., Abegg, M., Alberti, G., Zambrano, A.A., Alvarez‐Davila, E., Alves, L.F., Avitabile, V., Aymard, G., Bastin, J.‐F., Birnbaum, P., Bongers, F., Bouriaud, O., Brancalion, P., Broadbent, E., Bussotti, F., Gatti, R.C., Češljar, G., Chisholm, C., Cienciala, E., Clark, C. J., Corral‐Rivas, J.J., Crowther, T.W., Dayanandan, S., Decuyper, M., de Gasper, A.L., de‐Miguel, S., Derroire, G., DeVries, B., Djordjević, I., Van Do, T., Dolezal, J., Fayle, T.M., Fridman, J., Frizzera, L., Gianelle, D., Hemp, A., Hérault, B., Herold, M., Imai, N., Jagodziński, A.M., Jaroszewicz, B., Jucker, T., Kepfer‐Rojas, S., Keppel, G., Khan, M.L., Kim, H..S., Korjus, H., Kraxner, Fl., Laarmann, D., Lewis, S., Lu, H., Maitner, B.S., Marcon, E., Marshall, A.R., Mukul, S.A., Nabuurs, G.‐J., Nava‐Miranda, M.G., Parfenova, E.I., Park, M., Peri, P.L., Pfautsch, S., Phillips, O.L., Piedade, M.T.F., Piotto, D., Poulsen, J.R., Poulsen, A.D., Pretzsch, H., Reich, P.B., Rodeghiero, M., Rolim, S., Rovero, F., Saikia, P., Salas‐Eljatib, C., Schall, P., Shchepashchenko, D., Schöngart, J., Šebeň, V., Sist, P., Slik, F., Souza, A.F., Stereńczak, K., Svoboda, M., Tchebakova, N.M., ter Steege, H., Tikhonova, E.V., Usoltsev, V.A., Valladares, F., Viana, H., Vibrans, A.C., Wang, H.‐F.., Westerlund, B., Wiser, S.K., Wittmann, F., Wortel, V., Zawiła‐Niedźwiecki, T., Zhou, M., Zhu, Z.‐X., Zo‐Bi, I.C., Paquette, A., Bouchard, E., Searle, E.B., Drapeau, P., Liang, J., Gamarra, J.G.P., Abegg, M., Alberti, G., Zambrano, A.A., Alvarez‐Davila, E., Alves, L.F., Avitabile, V., Aymard, G., Bastin, J.‐F., Birnbaum, P., Bongers, F., Bouriaud, O., Brancalion, P., Broadbent, E., Bussotti, F., Gatti, R.C., Češljar, G., Chisholm, C., Cienciala, E., Clark, C. J., Corral‐Rivas, J.J., Crowther, T.W., Dayanandan, S., Decuyper, M., de Gasper, A.L., de‐Miguel, S., Derroire, G., DeVries, B., Djordjević, I., Van Do, T., Dolezal, J., Fayle, T.M., Fridman, J., Frizzera, L., Gianelle, D., Hemp, A., Hérault, B., Herold, M., Imai, N., Jagodziński, A.M., Jaroszewicz, B., Jucker, T., Kepfer‐Rojas, S., Keppel, G., Khan, M.L., Kim, H..S., Korjus, H., Kraxner, Fl., Laarmann, D., Lewis, S., Lu, H., Maitner, B.S., Marcon, E., Marshall, A.R., Mukul, S.A., Nabuurs, G.‐J., Nava‐Miranda, M.G., Parfenova, E.I., Park, M., Peri, P.L., Pfautsch, S., Phillips, O.L., Piedade, M.T.F., Piotto, D., Poulsen, J.R., Poulsen, A.D., Pretzsch, H., Reich, P.B., Rodeghiero, M., Rolim, S., Rovero, F., Saikia, P., Salas‐Eljatib, C., Schall, P., Shchepashchenko, D., Schöngart, J., Šebeň, V., Sist, P., Slik, F., Souza, A.F., Stereńczak, K., Svoboda, M., Tchebakova, N.M., ter Steege, H., Tikhonova, E.V., Usoltsev, V.A., Valladares, F., Viana, H., Vibrans, A.C., Wang, H.‐F.., Westerlund, B., Wiser, S.K., Wittmann, F., Wortel, V., Zawiła‐Niedźwiecki, T., Zhou, M., Zhu, Z.‐X., Zo‐Bi, I.C., and Paquette, A.
Abstract: Aim To determine the relationships between the functional trait composition of forest communities and environmental gradients across scales and biomes and the role of species relative abundances in these relationships. Location Global. Time period Recent. Major taxa studied Trees. Methods We integrated species abundance records from worldwide forest inventories and associated functional traits (wood density, specific leaf area and seed mass) to obtain a data set of 99,953 to 149,285 plots (depending on the trait) spanning all forested continents. We computed community-weighted and unweighted means of trait values for each plot and related them to three broad environmental gradients and their interactions (energy availability, precipitation and soil properties) at two scales (global and biomes). Results Our models explained up to 60% of the variance in trait distribution. At global scale, the energy gradient had the strongest influence on traits. However, within-biome models revealed different relationships among biomes. Notably, the functional composition of tropical forests was more influenced by precipitation and soil properties than energy availability, whereas temperate forests showed the opposite pattern. Depending on the trait studied, response to gradients was more variable and proportionally weaker in boreal forests. Community unweighted means were better predicted than weighted means for almost all models. Main conclusions Worldwide, trees require a large amount of energy (following latitude) to produce dense wood and seeds, while leaves with large surface to weight ratios are concentrated in temperate forests. However, patterns of functional composition within-biome differ from global patterns due to biome specificities such as the presence of conifers or unique combinations of climatic and soil properties. We recommend assessing the sensitivity of tree functional traits to environmental changes in their geographic context. Furthermore, at a given site, th
Published: 2024
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3. Positive feedbacks and alternative stable states in forest leaf types

Author: Zou, Y., Zohner, C., Averill, C., Ma, H., Merder, J., Berdugo, M., Bialic-Murphy, L., Mo, L., Brun, P., Zimmermann, N., Liang, J., de-Miguel, S., Nabuurs, G.-J., Reich, P., Niinements, U., Dahlgren, J., Kändler, G., Ratcliffe, S., Ruiz-Benito, P., de Zavala, M., Abegg, M., Adou Yao, Y., Alberti, G., Almeyda Zambrano, A., Alvarado, B., Alvarez-Dávila, E., Alvarez-Loayza, P., Alves, L., Ammer, C., Antón-Fernández, C., Araujo-Murakami, A., Arroyo, L., Avitabile, V., Aymard, G., Baker, T., Bałazy, R., Banki, O., Barroso, J., Bastian, M., Bastin, J.-F., Birigazzi, L., Birnbaum, P., Bitariho, R., Boeckx, P., Bongers, F., Bouriaud, O., Brancalion, P., Brandl, S., Brearley, F., Brienen, R., Broadbent, E., Bruelheide, H., Bussotti, F., Gatti, R., César, R., Cesljar, G., Chazdon, R., Chen, H., Chisholm, C., Cho, H., Cienciala, E., Clark, C., Clark, D., Colletta, G., Coomes, D., Valverde, F., Corral-Rivas, J., Crim, P., Cumming, J., Dayanandan, S., de Gasper, A., Decuyper, M., Derroire, G., DeVries, B., Djordjevic, I., Dolezal, J., Dourdain, A., Obiang, N., Enquist, B., Eyre, T., Fandohan, A., Fayle, T., Feldpausch, T., Ferreira, L., Finér, L., Fischer, M., Fletcher, C., Fridman, J., Frizzera, L., Gamarra, J., Gianelle, D., Glick, H., Harris, D., Hector, A., Hemp, A., Hengeveld, G., Hérault, B., Herbohn, J., Herold, M., Hillers, A., Honorio Coronado, E., Hui, C., Ibanez, T., Iêda, A., Imai, N., Jagodziński, A., Jaroszewicz, B., Johannsen, V., Joly, C., Jucker, T., Jung, I., Karminov, V., Kartawinata, K., Kearsley, E., Kenfack, D., Kennard, D., Kepfer-Rojas, S., Keppel, G., Khan, M., Killeen, T., Kim, H., Kitayama, K., Köhl, M., Korjus, H., Kraxner, F., Laarmann, D., Lang, M., Lewis, S., Lu, H., Lukina, N., Maitner, B., Malhi, Y., Marcon, E., Marimon, B., Marimon-Junior, B., Marshall, A., Martin, E., Kucher, D., Meave, J., Melo-Cruz, O., Mendoza, C., Merow, C., Mendoza, A., Moreno, V., Mukul, S., Mundhenk, P., Nava-Miranda, M., Neill, D., Neldner, V., Nevenic, R., Ngugi, M., Niklaus, P., Oleksyn, J., Ontikov, P., Ortiz-Malavasi, E., Pan, Y., Paquette, A., Parada-Gutierrez, A., Parfenova, E., Park, M., Parren, M., Parthasarathy, N., Peri, P., Pfautsch, S., Phillips, O., Picard, N., Piedade, M., Piotto, D., Pitman, N., Polo, I., Poorter, L., Poulsen, A., Poulsen, J., Pretzsch, H., Arevalo, F., Restrepo-Correa, Z., Rodeghiero, M., Rolim, S., Roopsind, A., Rovero, F., Rutishauser, E., Saikia, P., Salas-Eljatib, C., Saner, P., Schall, P., Schelhaas, M., Shchepashchenko, D., Scherer-Lorenzen, M., Schmid, B., Schöngart, J., Searle, E., Seben, V., Serra-Diaz, J., Sheil, D., Shvidenko, A., Silva-Espejo, J., Silveira, M., Singh, J., Sist, P., Slik, F., Sonké, B., Souza, A., Miscicki, S., Stereńczak, K., Svenning, J., Svoboda, M., Swanepoel, B., Targhetta, N., Tchebakova, N., ter Steege, H., Thomas, R., Tikhonova, E., Umunay, P., Usoltsev, V., Valencia, R., Valladares, F., van der Plas, F., Van Do, T., van Nuland, M., Vasquez, R., Verbeeck, H., Viana, H., Vibrans, A., Vieira, S., von Gadow, K., Wang, H., Watson, J., Werner, G., Westerlund, B., Wiser, S., Wittmann, F., Woell, H., Wortel, V., Zagt, R., Zawiła-Niedźwiecki, T., Zhang, C., Zhao, X., Zhou, M., Zhu, Z., Zo-Bi, I., Crowther, T., Zou, Y., Zohner, C., Averill, C., Ma, H., Merder, J., Berdugo, M., Bialic-Murphy, L., Mo, L., Brun, P., Zimmermann, N., Liang, J., de-Miguel, S., Nabuurs, G.-J., Reich, P., Niinements, U., Dahlgren, J., Kändler, G., Ratcliffe, S., Ruiz-Benito, P., de Zavala, M., Abegg, M., Adou Yao, Y., Alberti, G., Almeyda Zambrano, A., Alvarado, B., Alvarez-Dávila, E., Alvarez-Loayza, P., Alves, L., Ammer, C., Antón-Fernández, C., Araujo-Murakami, A., Arroyo, L., Avitabile, V., Aymard, G., Baker, T., Bałazy, R., Banki, O., Barroso, J., Bastian, M., Bastin, J.-F., Birigazzi, L., Birnbaum, P., Bitariho, R., Boeckx, P., Bongers, F., Bouriaud, O., Brancalion, P., Brandl, S., Brearley, F., Brienen, R., Broadbent, E., Bruelheide, H., Bussotti, F., Gatti, R., César, R., Cesljar, G., Chazdon, R., Chen, H., Chisholm, C., Cho, H., Cienciala, E., Clark, C., Clark, D., Colletta, G., Coomes, D., Valverde, F., Corral-Rivas, J., Crim, P., Cumming, J., Dayanandan, S., de Gasper, A., Decuyper, M., Derroire, G., DeVries, B., Djordjevic, I., Dolezal, J., Dourdain, A., Obiang, N., Enquist, B., Eyre, T., Fandohan, A., Fayle, T., Feldpausch, T., Ferreira, L., Finér, L., Fischer, M., Fletcher, C., Fridman, J., Frizzera, L., Gamarra, J., Gianelle, D., Glick, H., Harris, D., Hector, A., Hemp, A., Hengeveld, G., Hérault, B., Herbohn, J., Herold, M., Hillers, A., Honorio Coronado, E., Hui, C., Ibanez, T., Iêda, A., Imai, N., Jagodziński, A., Jaroszewicz, B., Johannsen, V., Joly, C., Jucker, T., Jung, I., Karminov, V., Kartawinata, K., Kearsley, E., Kenfack, D., Kennard, D., Kepfer-Rojas, S., Keppel, G., Khan, M., Killeen, T., Kim, H., Kitayama, K., Köhl, M., Korjus, H., Kraxner, F., Laarmann, D., Lang, M., Lewis, S., Lu, H., Lukina, N., Maitner, B., Malhi, Y., Marcon, E., Marimon, B., Marimon-Junior, B., Marshall, A., Martin, E., Kucher, D., Meave, J., Melo-Cruz, O., Mendoza, C., Merow, C., Mendoza, A., Moreno, V., Mukul, S., Mundhenk, P., Nava-Miranda, M., Neill, D., Neldner, V., Nevenic, R., Ngugi, M., Niklaus, P., Oleksyn, J., Ontikov, P., Ortiz-Malavasi, E., Pan, Y., Paquette, A., Parada-Gutierrez, A., Parfenova, E., Park, M., Parren, M., Parthasarathy, N., Peri, P., Pfautsch, S., Phillips, O., Picard, N., Piedade, M., Piotto, D., Pitman, N., Polo, I., Poorter, L., Poulsen, A., Poulsen, J., Pretzsch, H., Arevalo, F., Restrepo-Correa, Z., Rodeghiero, M., Rolim, S., Roopsind, A., Rovero, F., Rutishauser, E., Saikia, P., Salas-Eljatib, C., Saner, P., Schall, P., Schelhaas, M., Shchepashchenko, D., Scherer-Lorenzen, M., Schmid, B., Schöngart, J., Searle, E., Seben, V., Serra-Diaz, J., Sheil, D., Shvidenko, A., Silva-Espejo, J., Silveira, M., Singh, J., Sist, P., Slik, F., Sonké, B., Souza, A., Miscicki, S., Stereńczak, K., Svenning, J., Svoboda, M., Swanepoel, B., Targhetta, N., Tchebakova, N., ter Steege, H., Thomas, R., Tikhonova, E., Umunay, P., Usoltsev, V., Valencia, R., Valladares, F., van der Plas, F., Van Do, T., van Nuland, M., Vasquez, R., Verbeeck, H., Viana, H., Vibrans, A., Vieira, S., von Gadow, K., Wang, H., Watson, J., Werner, G., Westerlund, B., Wiser, S., Wittmann, F., Woell, H., Wortel, V., Zagt, R., Zawiła-Niedźwiecki, T., Zhang, C., Zhao, X., Zhou, M., Zhu, Z., Zo-Bi, I., and Crowther, T.
Abstract: The emergence of alternative stable states in forest systems has significant implications for the functioning and structure of the terrestrial biosphere, yet empirical evidence remains scarce. Here, we combine global forest biodiversity observations and simulations to test for alternative stable states in the presence of evergreen and deciduous forest types. We reveal a bimodal distribution of forest leaf types across temperate regions of the Northern Hemisphere that cannot be explained by the environment alone, suggesting signatures of alternative forest states. Moreover, we empirically demonstrate the existence of positive feedbacks in tree growth, recruitment and mortality, with trees having 4–43% higher growth rates, 14–17% higher survival rates and 4–7 times higher recruitment rates when they are surrounded by trees of their own leaf type. Simulations show that the observed positive feedbacks are necessary and sufficient to generate alternative forest states, which also lead to dependency on history (hysteresis) during ecosystem transition from evergreen to deciduous forests and vice versa. We identify hotspots of bistable forest types in evergreen-deciduous ecotones, which are likely driven by soil-related positive feedbacks. These findings are integral to predicting the distribution of forest biomes, and aid to our understanding of biodiversity, carbon turnover, and terrestrial climate feedbacks.
Published: 2024
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4. The global biogeography of tree leaf form and habit

Author: Ma, H., Crowther, T., Mo, L., Maynard, D., Renner, S., van den Hoogen, J., Zou, Y., Liang, J., de-Miguel, S., Nabuurs, G.-J., Reich, P., Niinemets, Ü., Abegg, M., Adou Yao, Y., Alberti, G., Almeyda Zambrano, A., Alvarado, B., Alvarez-Dávila, E., Alvarez-Loayza, P., Alves, L., Ammer, C., Antón-Fernández, C., Araujo-Murakami, A., Arroyo, L., Avitabile, V., Aymard, G., Baker, T., Bałazy, R., Banki, O., Barroso, J., Bastian, M., Bastin, J.-F., Birigazzi, L., Birnbaum, P., Bitariho, R., Boeckx, P., Bongers, F., Bouriaud, O., Brancalion, P., Brandl, S., Brearley, F., Brienen, R., Broadbent, E., Bruelheide, H., Bussotti, F., Cazzolla Gatti, R., César, R., Cesljar, G., Chazdon, R., Chen, H., Chisholm, C., Cho, H., Cienciala, E., Clark, C., Clark, D., Colletta, G., Coomes, D., Valverde, F., Corral-Rivas, J., Crim, P., Cumming, J., Dayanandan, S., de Gasper, A., Decuyper, M., Derroire, G., DeVries, B., Djordjevic, I., Dolezal, J., Dourdain, A., Engone Obiang, N., Enquist, B., Eyre, T., Fandohan, A., Fayle, T., Feldpausch, T., Ferreira, L., Finér, L., Fischer, M., Fletcher, C., Fridman, J., Frizzera, L., Gamarra, J., Gianelle, D., Glick, H., Harris, D., Hector, A., Hemp, A., Hengeveld, G., Hérault, B., Herbohn, J., Herold, M., Hillers, A., Honorio Coronado, E., Hui, C., Ibanez, T., Amaral, I., Imai, N., Jagodziński, A., Jaroszewicz, B., Johannsen, V., Joly, C., Jucker, T., Jung, I., Karminov, V., Kartawinata, K., Kearsley, E., Kenfack, D., Kennard, D., Kepfer-Rojas, S., Keppel, G., Khan, M., Killeen, T., Kim, H., Kitayama, K., Köhl, M., Korjus, H., Kraxner, F., Kucher, D., Laarmann, D., Lang, M., Lewis, S., Lu, H., Lukina, N., Maitner, B., Malhi, Y., Marcon, E., Marimon, B., Marimon-Junior, B., Marshall, A., Martin, E., Meave, J., Melo-Cruz, O., Mendoza, C., Merow, C., Monteagudo Mendoza, A., Moreno, V., Mukul, S., Mundhenk, P., Nava-Miranda, M., Neill, D., Neldner, V., Nevenic, R., Ngugi, M., Niklaus, P., Oleksyn, J., Ontikov, P., Ortiz-Malavasi, E., Pan, Y., Paquette, A., Parada-Gutierrez, A., Parfenova, E., Park, M., Parren, M., Parthasarathy, N., Peri, P., Pfautsch, S., Phillips, O., Picard, N., Piedade, M., Piotto, D., Pitman, N., Mendoza-Polo, I., Poulsen, A., Poulsen, J., Pretzsch, H., Ramirez Arevalo, F., Restrepo-Correa, Z., Rodeghiero, M., Rolim, S., Roopsind, A., Rovero, F., Rutishauser, E., Saikia, P., Salas-Eljatib, C., Saner, P., Schall, P., Schelhaas, M.-J., Shchepashchenko, D., Scherer-Lorenzen, M., Schmid, B., Schöngart, J., Searle, E., Seben, V., Serra-Diaz, J., Sheil, D., Shvidenko, A., Silva-Espejo, J., Silveira, M., Singh, J., Sist, P., Slik, F., Sonké, B., Souza, A., Miścicki, S., Stereńczak, K., Svenning, J.-C., Svoboda, M., Swanepoel, B., Targhetta, N., Tchebakova, N., ter Steege, H., Thomas, R., Tikhonova, E., Umunay, P., Usoltsev, V., Valencia, R., Valladares, F., van der Plas, F., Van Do, T., van Nuland, M., Vasquez, R., Verbeeck, H., Viana, H., Vibrans, A., Vieira, S., von Gadow, K., Wang, H.-F., Watson, J., Werner, G., Westerlund, B., Wiser, S., Wittmann, F., Woell, H., Wortel, V., Zagt, R., Zawiła-Niedźwiecki, T., Zhang, C., Zhao, X., Zhou, M., Zhu, Z.-X., Zo-Bi, I., Zohner, C., Ma, H., Crowther, T., Mo, L., Maynard, D., Renner, S., van den Hoogen, J., Zou, Y., Liang, J., de-Miguel, S., Nabuurs, G.-J., Reich, P., Niinemets, Ü., Abegg, M., Adou Yao, Y., Alberti, G., Almeyda Zambrano, A., Alvarado, B., Alvarez-Dávila, E., Alvarez-Loayza, P., Alves, L., Ammer, C., Antón-Fernández, C., Araujo-Murakami, A., Arroyo, L., Avitabile, V., Aymard, G., Baker, T., Bałazy, R., Banki, O., Barroso, J., Bastian, M., Bastin, J.-F., Birigazzi, L., Birnbaum, P., Bitariho, R., Boeckx, P., Bongers, F., Bouriaud, O., Brancalion, P., Brandl, S., Brearley, F., Brienen, R., Broadbent, E., Bruelheide, H., Bussotti, F., Cazzolla Gatti, R., César, R., Cesljar, G., Chazdon, R., Chen, H., Chisholm, C., Cho, H., Cienciala, E., Clark, C., Clark, D., Colletta, G., Coomes, D., Valverde, F., Corral-Rivas, J., Crim, P., Cumming, J., Dayanandan, S., de Gasper, A., Decuyper, M., Derroire, G., DeVries, B., Djordjevic, I., Dolezal, J., Dourdain, A., Engone Obiang, N., Enquist, B., Eyre, T., Fandohan, A., Fayle, T., Feldpausch, T., Ferreira, L., Finér, L., Fischer, M., Fletcher, C., Fridman, J., Frizzera, L., Gamarra, J., Gianelle, D., Glick, H., Harris, D., Hector, A., Hemp, A., Hengeveld, G., Hérault, B., Herbohn, J., Herold, M., Hillers, A., Honorio Coronado, E., Hui, C., Ibanez, T., Amaral, I., Imai, N., Jagodziński, A., Jaroszewicz, B., Johannsen, V., Joly, C., Jucker, T., Jung, I., Karminov, V., Kartawinata, K., Kearsley, E., Kenfack, D., Kennard, D., Kepfer-Rojas, S., Keppel, G., Khan, M., Killeen, T., Kim, H., Kitayama, K., Köhl, M., Korjus, H., Kraxner, F., Kucher, D., Laarmann, D., Lang, M., Lewis, S., Lu, H., Lukina, N., Maitner, B., Malhi, Y., Marcon, E., Marimon, B., Marimon-Junior, B., Marshall, A., Martin, E., Meave, J., Melo-Cruz, O., Mendoza, C., Merow, C., Monteagudo Mendoza, A., Moreno, V., Mukul, S., Mundhenk, P., Nava-Miranda, M., Neill, D., Neldner, V., Nevenic, R., Ngugi, M., Niklaus, P., Oleksyn, J., Ontikov, P., Ortiz-Malavasi, E., Pan, Y., Paquette, A., Parada-Gutierrez, A., Parfenova, E., Park, M., Parren, M., Parthasarathy, N., Peri, P., Pfautsch, S., Phillips, O., Picard, N., Piedade, M., Piotto, D., Pitman, N., Mendoza-Polo, I., Poulsen, A., Poulsen, J., Pretzsch, H., Ramirez Arevalo, F., Restrepo-Correa, Z., Rodeghiero, M., Rolim, S., Roopsind, A., Rovero, F., Rutishauser, E., Saikia, P., Salas-Eljatib, C., Saner, P., Schall, P., Schelhaas, M.-J., Shchepashchenko, D., Scherer-Lorenzen, M., Schmid, B., Schöngart, J., Searle, E., Seben, V., Serra-Diaz, J., Sheil, D., Shvidenko, A., Silva-Espejo, J., Silveira, M., Singh, J., Sist, P., Slik, F., Sonké, B., Souza, A., Miścicki, S., Stereńczak, K., Svenning, J.-C., Svoboda, M., Swanepoel, B., Targhetta, N., Tchebakova, N., ter Steege, H., Thomas, R., Tikhonova, E., Umunay, P., Usoltsev, V., Valencia, R., Valladares, F., van der Plas, F., Van Do, T., van Nuland, M., Vasquez, R., Verbeeck, H., Viana, H., Vibrans, A., Vieira, S., von Gadow, K., Wang, H.-F., Watson, J., Werner, G., Westerlund, B., Wiser, S., Wittmann, F., Woell, H., Wortel, V., Zagt, R., Zawiła-Niedźwiecki, T., Zhang, C., Zhao, X., Zhou, M., Zhu, Z.-X., Zo-Bi, I., and Zohner, C.
Abstract: Understanding what controls global leaf type variation in trees is crucial for comprehending their role in terrestrial ecosystems, including carbon, water and nutrient dynamics. Yet our understanding of the factors influencing forest leaf types remains incomplete, leaving us uncertain about the global proportions of needle-leaved, broadleaved, evergreen and deciduous trees. To address these gaps, we conducted a global, ground-sourced assessment of forest leaf-type variation by integrating forest inventory data with comprehensive leaf form (broadleaf vs needle-leaf) and habit (evergreen vs deciduous) records. We found that global variation in leaf habit is primarily driven by isothermality and soil characteristics, while leaf form is predominantly driven by temperature. Given these relationships, we estimate that 38% of global tree individuals are needle-leaved evergreen, 29% are broadleaved evergreen, 27% are broadleaved deciduous and 5% are needle-leaved deciduous. The aboveground biomass distribution among these tree types is approximately 21% (126.4 Gt), 54% (335.7 Gt), 22% (136.2 Gt) and 3% (18.7 Gt), respectively. We further project that, depending on future emissions pathways, 17-34% of forested areas will experience climate conditions by the end of the century that currently support a different forest type, highlighting the intensification of climatic stress on existing forests. By quantifying the distribution of tree leaf types and their corresponding biomass, and identifying regions where climate change will exert greatest pressure on current leaf types, our results can help improve predictions of future terrestrial ecosystem functioning and carbon cycling.
Published: 2023
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5. Integrated global assessment of the natural forest carbon potential

Author: Mo, L., Zohner, C., Reich, P., Liang, J., de Miguel, S., Nabuurs, G., Renner, S., van den Hoogen, J., Araza, A., Herold, M., Mirzagholi, L., Ma, H., Averill, C., Phillips, O., Gamarra, J., Hordijk, I., Routh, D., Abegg, M., Adou Yao, Y., Alberti, G., Almeyda Zambrano, A., Alvarado, B., Alvarez-Dávila, E., Alvarez-Loayza, P., Alves, L., Amaral, I., Ammer, C., Antón-Fernández, C., Araujo-Murakami, A., Arroyo, L., Avitabile, V., Aymard, G., Baker, T., Bałazy, R., Banki, O., Barroso, J., Bastian, M., Bastin, J., Birigazzi, L., Birnbaum, P., Bitariho, R., Boeckx, P., Bongers, F., Bouriaud, O., Brancalion, P., Brandl, S., Brearley, F., Brienen, R., Broadbent, E., Bruelheide, H., Bussotti, F., Cazzolla Gatti, R., César, R., Cesljar, G., Chazdon, R., Chen, H., Chisholm, C., Cho, H., Cienciala, E., Clark, C., Clark, D., Colletta, G., Coomes, D., Cornejo Valverde, F., Corral-Rivas, J., Crim, P., Cumming, J., Dayanandan, S., de Gasper, A., Decuyper, M., Derroire, G., DeVries, B., Djordjevic, I., Dolezal, J., Dourdain, A., Engone Obiang, N., Enquist, B., Eyre, T., Fandohan, A., Fayle, T., Feldpausch, T., Ferreira, L., Finér, L., Fischer, M., Fletcher, C., Frizzera, L., Gianelle, D., Glick, H., Harris, D., Hector, A., Hemp, A., Hengeveld, G., Hérault, B., Herbohn, J., Hillers, A., Honorio Coronado, E., Hui, C., Ibanez, T., Imai, N., Jagodziński, A., Jaroszewicz, B., Johannsen, V., Joly, C., Jucker, T., Jung, I., Karminov, V., Kartawinata, K., Kearsley, E., Kenfack, D., Kennard, D., Kepfer-Rojas, S., Keppel, G., Khan, M., Killeen, T., Kim, H., Kitayama, K., Köhl, M., Korjus, H., Kraxner, F., Kucher, D., Laarmann, D., Lang, M., Lu, H., Lukina, N., Maitner, B., Malhi, Y., Marcon, E., Marimon, B., Marimon-Junior, B., Marshall, A., Martin, E., Meave, J., Melo-Cruz, O., Mendoza, C., Mendoza-Polo, I., Miscicki, S., Merow, C., Monteagudo Mendoza, A., Moreno, V., Mukul, S., Mundhenk, P., Nava-Miranda, M., Neill, D., Neldner, V., Nevenic, R., Ngugi, M., Niklaus, P., Oleksyn, J., Ontikov, P., Ortiz-Malavasi, E., Pan, Y., Paquette, A., Parada-Gutierrez, A., Parfenova, E., Park, M., Parren, M., Parthasarathy, N., Peri, P., Pfautsch, S., Picard, N., Piedade, M., Piotto, D., Pitman, N., Poulsen, A., Poulsen, J., Pretzsch, H., Ramirez Arevalo, F., Restrepo-Correa, Z., Rodeghiero, M., Rolim, S., Roopsind, A., Rovero, F., Rutishauser, E., Saikia, P., Salas-Eljatib, C., Saner, P., Schall, P., Schelhaas, M., Shchepashchenko, D., Scherer-Lorenzen, M., Schmid, B., Schöngart, J., Searle, E., Seben, V., Serra-Diaz, J., Sheil, D., Shvidenko, A., Silva-Espejo, J., Silveira, M., Singh, J., Sist, P., Slik, F., Sonké, B., Souza, A., Stereńczak, K., Svenning, J., Svoboda, M., Swanepoel, B., Targhetta, N., Tchebakova, N., ter Steege, H., Thomas, R., Tikhonova, E., Umunay, P., Usoltsev, V., Valencia, R., Valladares, F., van der Plas, F., Van Do, T., van Nuland, M., Vasquez, R., Verbeeck, H., Viana, H., Vibrans, A., Vieira, S., von Gadow, K., Wang, H., Watson, J., Werner, G., Wiser, S., Wittmann, F., Woell, H., Wortel, V., Zagt, R., Zawiła-Niedźwiecki, T., Zhang, C., Zhao, X., Zhou, M., Zhu, Z., Zo-Bi, I., Gann, G., Crowther, T., Mo, L., Zohner, C., Reich, P., Liang, J., de Miguel, S., Nabuurs, G., Renner, S., van den Hoogen, J., Araza, A., Herold, M., Mirzagholi, L., Ma, H., Averill, C., Phillips, O., Gamarra, J., Hordijk, I., Routh, D., Abegg, M., Adou Yao, Y., Alberti, G., Almeyda Zambrano, A., Alvarado, B., Alvarez-Dávila, E., Alvarez-Loayza, P., Alves, L., Amaral, I., Ammer, C., Antón-Fernández, C., Araujo-Murakami, A., Arroyo, L., Avitabile, V., Aymard, G., Baker, T., Bałazy, R., Banki, O., Barroso, J., Bastian, M., Bastin, J., Birigazzi, L., Birnbaum, P., Bitariho, R., Boeckx, P., Bongers, F., Bouriaud, O., Brancalion, P., Brandl, S., Brearley, F., Brienen, R., Broadbent, E., Bruelheide, H., Bussotti, F., Cazzolla Gatti, R., César, R., Cesljar, G., Chazdon, R., Chen, H., Chisholm, C., Cho, H., Cienciala, E., Clark, C., Clark, D., Colletta, G., Coomes, D., Cornejo Valverde, F., Corral-Rivas, J., Crim, P., Cumming, J., Dayanandan, S., de Gasper, A., Decuyper, M., Derroire, G., DeVries, B., Djordjevic, I., Dolezal, J., Dourdain, A., Engone Obiang, N., Enquist, B., Eyre, T., Fandohan, A., Fayle, T., Feldpausch, T., Ferreira, L., Finér, L., Fischer, M., Fletcher, C., Frizzera, L., Gianelle, D., Glick, H., Harris, D., Hector, A., Hemp, A., Hengeveld, G., Hérault, B., Herbohn, J., Hillers, A., Honorio Coronado, E., Hui, C., Ibanez, T., Imai, N., Jagodziński, A., Jaroszewicz, B., Johannsen, V., Joly, C., Jucker, T., Jung, I., Karminov, V., Kartawinata, K., Kearsley, E., Kenfack, D., Kennard, D., Kepfer-Rojas, S., Keppel, G., Khan, M., Killeen, T., Kim, H., Kitayama, K., Köhl, M., Korjus, H., Kraxner, F., Kucher, D., Laarmann, D., Lang, M., Lu, H., Lukina, N., Maitner, B., Malhi, Y., Marcon, E., Marimon, B., Marimon-Junior, B., Marshall, A., Martin, E., Meave, J., Melo-Cruz, O., Mendoza, C., Mendoza-Polo, I., Miscicki, S., Merow, C., Monteagudo Mendoza, A., Moreno, V., Mukul, S., Mundhenk, P., Nava-Miranda, M., Neill, D., Neldner, V., Nevenic, R., Ngugi, M., Niklaus, P., Oleksyn, J., Ontikov, P., Ortiz-Malavasi, E., Pan, Y., Paquette, A., Parada-Gutierrez, A., Parfenova, E., Park, M., Parren, M., Parthasarathy, N., Peri, P., Pfautsch, S., Picard, N., Piedade, M., Piotto, D., Pitman, N., Poulsen, A., Poulsen, J., Pretzsch, H., Ramirez Arevalo, F., Restrepo-Correa, Z., Rodeghiero, M., Rolim, S., Roopsind, A., Rovero, F., Rutishauser, E., Saikia, P., Salas-Eljatib, C., Saner, P., Schall, P., Schelhaas, M., Shchepashchenko, D., Scherer-Lorenzen, M., Schmid, B., Schöngart, J., Searle, E., Seben, V., Serra-Diaz, J., Sheil, D., Shvidenko, A., Silva-Espejo, J., Silveira, M., Singh, J., Sist, P., Slik, F., Sonké, B., Souza, A., Stereńczak, K., Svenning, J., Svoboda, M., Swanepoel, B., Targhetta, N., Tchebakova, N., ter Steege, H., Thomas, R., Tikhonova, E., Umunay, P., Usoltsev, V., Valencia, R., Valladares, F., van der Plas, F., Van Do, T., van Nuland, M., Vasquez, R., Verbeeck, H., Viana, H., Vibrans, A., Vieira, S., von Gadow, K., Wang, H., Watson, J., Werner, G., Wiser, S., Wittmann, F., Woell, H., Wortel, V., Zagt, R., Zawiła-Niedźwiecki, T., Zhang, C., Zhao, X., Zhou, M., Zhu, Z., Zo-Bi, I., Gann, G., and Crowther, T.
Abstract: Forests are a substantial terrestrial carbon sink, but anthropogenic changes in land use and climate have considerably reduced the scale of this system1. Remote-sensing estimates to quantify carbon losses from global forests2–5 are characterized by considerable uncertainty and we lack a comprehensive ground-sourced evaluation to benchmark these estimates. Here we combine several ground-sourced6 and satellite-derived approaches2,7,8 to evaluate the scale of the global forest carbon potential outside agricultural and urban lands. Despite regional variation, the predictions demonstrated remarkable consistency at a global scale, with only a 12% difference between the ground-sourced and satellite-derived estimates. At present, global forest carbon storage is markedly under the natural potential, with a total deficit of 226 Gt (model range = 151–363 Gt) in areas with low human footprint. Most (61%, 139 Gt C) of this potential is in areas with existing forests, in which ecosystem protection can allow forests to recover to maturity. The remaining 39% (87 Gt C) of potential lies in regions in which forests have been removed or fragmented. Although forests cannot be a substitute for emissions reductions, our results support the idea2,3,9 that the conservation, restoration and sustainable management of diverse forests offer valuable contributions to meeting global climate and biodiversity targets.
Published: 2023

6. Native diversity buffers against severity of non-native tree invasions

Author: Delavaux, C., Crowther, T., Zohner, C., Robmann, N., Lauber, T., van den Hoogen, J., Kuebbing, S., Liang, J., de-Miguel, S., Nabuurs, G.-J., Reich, P.B., Abegg, M., Adou Yao, Y.C., Alberti, G., Almeyda Zambrano, A.M., Alvarado, B.V., Alvarez-Dávila, E., Alvarez-Loayza, P., Alves, L.F., Ammer, C., Antón-Fernández, C., Araujo-Murakami, A., Arroyo, L., Avitabile, V., Aymard, G.A., Baker, T.R., Bałazy, R., Banki, O., Barroso, J.G., Bastian, M.L., Bastin, J.-F., Birigazzi, L., Birnbaum, P., Bitariho, R., Boeckx, P., Bongers, F., Bouriaud, O., Brancalion, P.H.S., Brandl, S., Brienen, R., Broadbent, E.N., Bruelheide, H., Bussotti, F., Gatti, R.C., César, R.G., Cesljar, G., Chazdon, R., Chen, H.Y.H., Chisholm, C., Cho, H., Cienciala, E., Clark, C., Clark, D., Colletta, G.D., Coomes, D.A., Cornejo Valverde, F., Corral-Rivas, J.J., Crim, P.M., Cumming, J.R., Dayanandan, S., de Gasper, A.L., Decuyper, M., Derroire, G., DeVries, B., Djordjevic, I., Dolezal, J., Dourdain, A., Engone Obiang, N.L., Enquist, B.J., Eyre, T.J., Fandohan, A.B., Fayle, T.M., Feldpausch, T.R., Ferreira, L.V., Fischer, M., Fletcher, C., Frizzera, L., Gamarra, J.G.P., Gianelle, D., Glick, H.B., Harris, D.J., Hector, A., Hemp, A., Hengeveld, G., Hérault, B., Herbohn, J.L., Herold, M., Hillers, A., Honorio Coronado, E.N., Hui, C., Ibanez, T.T., Amaral, I., Imai, N., Jagodziński, A.M., Jaroszewicz, B., Johannsen, V.K., Joly, C.A., Jucker, T., Jung, I., Karminov, V., Kartawinata, K., Kearsley, E., Kenfack, D., Kennard, D.K., Kepfer-Rojas, S., Keppel, G., Khan, M.L., Killeen, T.J., Kim, H.S., Kitayama, K., Köhl, M., Korjus, H., Kraxner, F., Laarmann, D., Lang, M., Lewis, S.L., Lu, H., Lukina, N.V., Maitner, B.S., Malhi, Y., Marcon, E., Marimon, B.S., Marimon-Junior, B.H., Marshall, A.R., Martin, E.H., Martynenko, O., Meave, J.A., Melo-Cruz, O., Mendoza, C., Merow, C., Mendoza, A.M., Moreno, V.S., Mukul, S.A., Mundhenk, P., Nava-Miranda, M.G., Neill, D., Neldner, V., Nevenic, R., Ngugi, M., Niklaus, P., Oleksyn, J., Ontikov, P., Ortiz-Malavasi, E., Pan, Y., Paquette, A., Parada-Gutierrez, A., Parfenova, E., Park, M., Parren, M., Parthasarathy, N., Peri, P., Pfautsch, S., Phillips, O., Picard, N., Piedade, M., Piotto, D., Pitman, N., Polo, I., Poorter, L., Poulsen, A., Pretzsch, H., Ramirez Arevalo, F., Restrepo-Correa, Z., Rodeghiero, M., Rolim, S., Roopsind, A., Rovero, F., Rutishauser, E., Saikia, P., Salas-Eljatib, C., Saner, P., Schall, P., Shchepashchenko, D., Scherer-Lorenzen, M., Schmid, B., Schöngart, J., Searle, E., Seben, V., Serra-Diaz, J., Sheil, D., Shvidenko, A., Silva-Espejo, J., Silveira, M., Singh, J., Sist, P., Slik, F., Sonké, B., Souza, A., Stanislaw, M., Stereńczak, K., Svenning, J.-C., Svoboda, M., Swanepoel, B., Targhetta, N., Tchebakova, N., ter Steege, H., Thomas, R., Tikhonova, E., Umunay, P., Usoltsev, V., Valencia, R., Valladares, F., van der Plas, F., Do, T.V., van Nuland, M., Vasquez, R., Verbeeck, H., Viana, H., Vibrans, A., Vieira, S., von Gadow, K., Wang, H.-F., Watson, J., Werner, G., Wiser, S.K., Wittmann, F., Woell, H., Wortel, V., Zagt, R., Zawiła-Niedźwiecki, T., Zhang, C., Zhao, X., Zhou, M., Zhu, Z.-X., Zo-Bi, I., Maynard, D., Delavaux, C., Crowther, T., Zohner, C., Robmann, N., Lauber, T., van den Hoogen, J., Kuebbing, S., Liang, J., de-Miguel, S., Nabuurs, G.-J., Reich, P.B., Abegg, M., Adou Yao, Y.C., Alberti, G., Almeyda Zambrano, A.M., Alvarado, B.V., Alvarez-Dávila, E., Alvarez-Loayza, P., Alves, L.F., Ammer, C., Antón-Fernández, C., Araujo-Murakami, A., Arroyo, L., Avitabile, V., Aymard, G.A., Baker, T.R., Bałazy, R., Banki, O., Barroso, J.G., Bastian, M.L., Bastin, J.-F., Birigazzi, L., Birnbaum, P., Bitariho, R., Boeckx, P., Bongers, F., Bouriaud, O., Brancalion, P.H.S., Brandl, S., Brienen, R., Broadbent, E.N., Bruelheide, H., Bussotti, F., Gatti, R.C., César, R.G., Cesljar, G., Chazdon, R., Chen, H.Y.H., Chisholm, C., Cho, H., Cienciala, E., Clark, C., Clark, D., Colletta, G.D., Coomes, D.A., Cornejo Valverde, F., Corral-Rivas, J.J., Crim, P.M., Cumming, J.R., Dayanandan, S., de Gasper, A.L., Decuyper, M., Derroire, G., DeVries, B., Djordjevic, I., Dolezal, J., Dourdain, A., Engone Obiang, N.L., Enquist, B.J., Eyre, T.J., Fandohan, A.B., Fayle, T.M., Feldpausch, T.R., Ferreira, L.V., Fischer, M., Fletcher, C., Frizzera, L., Gamarra, J.G.P., Gianelle, D., Glick, H.B., Harris, D.J., Hector, A., Hemp, A., Hengeveld, G., Hérault, B., Herbohn, J.L., Herold, M., Hillers, A., Honorio Coronado, E.N., Hui, C., Ibanez, T.T., Amaral, I., Imai, N., Jagodziński, A.M., Jaroszewicz, B., Johannsen, V.K., Joly, C.A., Jucker, T., Jung, I., Karminov, V., Kartawinata, K., Kearsley, E., Kenfack, D., Kennard, D.K., Kepfer-Rojas, S., Keppel, G., Khan, M.L., Killeen, T.J., Kim, H.S., Kitayama, K., Köhl, M., Korjus, H., Kraxner, F., Laarmann, D., Lang, M., Lewis, S.L., Lu, H., Lukina, N.V., Maitner, B.S., Malhi, Y., Marcon, E., Marimon, B.S., Marimon-Junior, B.H., Marshall, A.R., Martin, E.H., Martynenko, O., Meave, J.A., Melo-Cruz, O., Mendoza, C., Merow, C., Mendoza, A.M., Moreno, V.S., Mukul, S.A., Mundhenk, P., Nava-Miranda, M.G., Neill, D., Neldner, V., Nevenic, R., Ngugi, M., Niklaus, P., Oleksyn, J., Ontikov, P., Ortiz-Malavasi, E., Pan, Y., Paquette, A., Parada-Gutierrez, A., Parfenova, E., Park, M., Parren, M., Parthasarathy, N., Peri, P., Pfautsch, S., Phillips, O., Picard, N., Piedade, M., Piotto, D., Pitman, N., Polo, I., Poorter, L., Poulsen, A., Pretzsch, H., Ramirez Arevalo, F., Restrepo-Correa, Z., Rodeghiero, M., Rolim, S., Roopsind, A., Rovero, F., Rutishauser, E., Saikia, P., Salas-Eljatib, C., Saner, P., Schall, P., Shchepashchenko, D., Scherer-Lorenzen, M., Schmid, B., Schöngart, J., Searle, E., Seben, V., Serra-Diaz, J., Sheil, D., Shvidenko, A., Silva-Espejo, J., Silveira, M., Singh, J., Sist, P., Slik, F., Sonké, B., Souza, A., Stanislaw, M., Stereńczak, K., Svenning, J.-C., Svoboda, M., Swanepoel, B., Targhetta, N., Tchebakova, N., ter Steege, H., Thomas, R., Tikhonova, E., Umunay, P., Usoltsev, V., Valencia, R., Valladares, F., van der Plas, F., Do, T.V., van Nuland, M., Vasquez, R., Verbeeck, H., Viana, H., Vibrans, A., Vieira, S., von Gadow, K., Wang, H.-F., Watson, J., Werner, G., Wiser, S.K., Wittmann, F., Woell, H., Wortel, V., Zagt, R., Zawiła-Niedźwiecki, T., Zhang, C., Zhao, X., Zhou, M., Zhu, Z.-X., Zo-Bi, I., and Maynard, D.
Abstract: Determining the drivers of non-native plant invasions is critical for managing native ecosystems and limiting the spread of invasive species1,2. Tree invasions in particular have been relatively overlooked, even though they have the potential to transform ecosystems and economies3,4. Here, leveraging global tree databases5-7, we explore how the phylogenetic and functional diversity of native tree communities, human pressure and the environment influence the establishment of non-native tree species and the subsequent invasion severity. We find that anthropogenic factors are key to predicting whether a location is invaded, but that invasion severity is underpinned by native diversity, with higher diversity predicting lower invasion severity. Temperature and precipitation emerge as strong predictors of invasion strategy, with non-native species invading successfully when they are similar to the native community in cold or dry extremes. Yet, despite the influence of these ecological forces in determining invasion strategy, we find evidence that these patterns can be obscured by human activity, with lower ecological signal in areas with higher proximity to shipping ports. Our global perspective of non-native tree invasion highlights that human drivers influence non-native tree presence, and that native phylogenetic and functional diversity have a critical role in the establishment and spread of subsequent invasions.
Published: 2023
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7. Evenness mediates the global relationship between forest productivity and richness

Author: Hordijk, I., Maynard, D.S., Hart, S.P., Lidong, M., ter Steege, H., Liang, J., de‐Miguel, S., Nabuurs, G.‐J., Reich, P., Abegg, M., Adou Yao, C., Alberti, G., Almeyda Zambrano, A., Alvarado, B., Esteban, A.-D., Alvarez‐Loayza, P., Alves, L., Ammer, C., Antón‐Fernández, C., Araujo‐Murakami, A., Arroyo, L., Avitabile, V., Aymard C, G., Baker, T., Bałazy, R., Banki, O., Barroso, J., Bastian, M., Bastin, J.-F., Birigazzi, L., Birnbaum, P., Bitariho, R., Boeckx, P., Bongers, F., Bouriaud, O., Brancalion, P., Brandl, S., Brienen, R., Broadbent, E., Bruelheide, H., Bussotti, F., Cazzolla Gatti, R., César, R., Cesljar, G., Chazdon, R., Chen, H., Chisholm, C., Cienciala, E., Clark, C., Clark, D., Colletta, G., Coomes, D., Cornejo Valverde, F., Corral‐Rivas, J., Crim, P., Cumming, J., Dayanandan, S., de Gasper, A., Decuyper, M., Derroire, G., DeVries, B., Djordjevic, I., Iêda, A., Dourdain, A., Nestor Laurier, E., Enquist, B., Eyre, T., Fandohan, A., Fayle, T., Ferreira, L., Feldpausch, T., Finér, L., Fischer, M., Fletcher, C., Frizzera, L., Gamarra, J., Gianelle, D., Glick, H., Harris, D., Hector, A., Hemp, A., Hengeveld, G., Hérault, B., Herbohn, J., Hillers, A., Honorio Coronado, E., Hui, C., Cho, H., Ibanez, T., Bin Jung, I., Imai, N., Jagodzinski, A., Jaroszewicz, B., Johanssen, V., Joly, C., Jucker, T., Karminov, V., Kartawinata, K., Kearsley, E., Kenfack, D., Kennard, D., Kepfer‐Rojas, S., Keppel, G., Khan, M., Killeen, T., Kim, H., Kitayama, K., Köhl, M., Korjus, H., Kraxner, F., Laarmann, D., Lang, M., Lewis, S., Lu, H., Lukina, N., Maitner, B., Malhi, Y., Marcon, E., Marimon, B., Marimon‐Junior, B., Marshall, A., Martin, E., Martynenko, O., Meave, J., Melo‐Cruz, O., Mendoza, C., Merow, C., Stanislaw, M., Mendoza, A., Moreno, V., Mukul, S., Mundhenk, P., Nava‐Miranda, M., Neill, D., Neldner, V., Nevenic, R., Ngugi, M., Niklaus, P., Oleksyn, J., Ontikov, P., Ortiz‐Malavasi, E., Pan, Y., Paquette, A., Parada‐Gutierrez, A., Parfenova, E., Park, M., Parren, M., Parthasarathy, N., Peri, P., Pfautsch, S., Phillips, O., Picard, N., Piedade, M., Piotto, D., Pitman, N., Polo, I., Poorter, L., Poulsen, A., Poulsen, J., Pretzsch, H., Ramirez Arevalo, F., Restrepo‐Correa, Z., Rodeghiero, M., Rolim, S., Roopsind, A., Rovero, F., Rutishauser, E., Saikia, P., Salas‐Eljatib, C., Schall, P., Shchepashchenko, D., Scherer‐Lorenzen, M., Schmid, B., Schöngart, J., Searle, E., Šebeň, V., Serra‐Diaz, J., Sheil, D., Shvidenko, A., Silva‐Espejo, J., Silveira, M., Singh, J., Sist, P., Slik, F., Sonké, B., Souza, A., Stereńczak, K., Svenning, J.-C., Svoboda, M., Swanepoel, B., Targhetta, N., Tchebakova, N., Thomas, R., Tikhonova, E., Umunay, P., Usoltsev, V., Valencia, R., Valladares, F., van der Plas, F., Tran, D., Van Nuland, M., Vasquez Martinez, R., Verbeeck, H., Viana, H., Vibrans, A., Vieira, S., von Gadow, K., Wang, H.-F., Watson, J., Werner, G., Wiser, S., Wittmann, F., Wortel, V., Zagt, R., Zawila‐Niedzwiecki, T., Zhang, C., Zhao, X., Zhou, M., Zhu, Z.-X., Zo‐Bi, I., Crowther, T., Hordijk, I., Maynard, D.S., Hart, S.P., Lidong, M., ter Steege, H., Liang, J., de‐Miguel, S., Nabuurs, G.‐J., Reich, P., Abegg, M., Adou Yao, C., Alberti, G., Almeyda Zambrano, A., Alvarado, B., Esteban, A.-D., Alvarez‐Loayza, P., Alves, L., Ammer, C., Antón‐Fernández, C., Araujo‐Murakami, A., Arroyo, L., Avitabile, V., Aymard C, G., Baker, T., Bałazy, R., Banki, O., Barroso, J., Bastian, M., Bastin, J.-F., Birigazzi, L., Birnbaum, P., Bitariho, R., Boeckx, P., Bongers, F., Bouriaud, O., Brancalion, P., Brandl, S., Brienen, R., Broadbent, E., Bruelheide, H., Bussotti, F., Cazzolla Gatti, R., César, R., Cesljar, G., Chazdon, R., Chen, H., Chisholm, C., Cienciala, E., Clark, C., Clark, D., Colletta, G., Coomes, D., Cornejo Valverde, F., Corral‐Rivas, J., Crim, P., Cumming, J., Dayanandan, S., de Gasper, A., Decuyper, M., Derroire, G., DeVries, B., Djordjevic, I., Iêda, A., Dourdain, A., Nestor Laurier, E., Enquist, B., Eyre, T., Fandohan, A., Fayle, T., Ferreira, L., Feldpausch, T., Finér, L., Fischer, M., Fletcher, C., Frizzera, L., Gamarra, J., Gianelle, D., Glick, H., Harris, D., Hector, A., Hemp, A., Hengeveld, G., Hérault, B., Herbohn, J., Hillers, A., Honorio Coronado, E., Hui, C., Cho, H., Ibanez, T., Bin Jung, I., Imai, N., Jagodzinski, A., Jaroszewicz, B., Johanssen, V., Joly, C., Jucker, T., Karminov, V., Kartawinata, K., Kearsley, E., Kenfack, D., Kennard, D., Kepfer‐Rojas, S., Keppel, G., Khan, M., Killeen, T., Kim, H., Kitayama, K., Köhl, M., Korjus, H., Kraxner, F., Laarmann, D., Lang, M., Lewis, S., Lu, H., Lukina, N., Maitner, B., Malhi, Y., Marcon, E., Marimon, B., Marimon‐Junior, B., Marshall, A., Martin, E., Martynenko, O., Meave, J., Melo‐Cruz, O., Mendoza, C., Merow, C., Stanislaw, M., Mendoza, A., Moreno, V., Mukul, S., Mundhenk, P., Nava‐Miranda, M., Neill, D., Neldner, V., Nevenic, R., Ngugi, M., Niklaus, P., Oleksyn, J., Ontikov, P., Ortiz‐Malavasi, E., Pan, Y., Paquette, A., Parada‐Gutierrez, A., Parfenova, E., Park, M., Parren, M., Parthasarathy, N., Peri, P., Pfautsch, S., Phillips, O., Picard, N., Piedade, M., Piotto, D., Pitman, N., Polo, I., Poorter, L., Poulsen, A., Poulsen, J., Pretzsch, H., Ramirez Arevalo, F., Restrepo‐Correa, Z., Rodeghiero, M., Rolim, S., Roopsind, A., Rovero, F., Rutishauser, E., Saikia, P., Salas‐Eljatib, C., Schall, P., Shchepashchenko, D., Scherer‐Lorenzen, M., Schmid, B., Schöngart, J., Searle, E., Šebeň, V., Serra‐Diaz, J., Sheil, D., Shvidenko, A., Silva‐Espejo, J., Silveira, M., Singh, J., Sist, P., Slik, F., Sonké, B., Souza, A., Stereńczak, K., Svenning, J.-C., Svoboda, M., Swanepoel, B., Targhetta, N., Tchebakova, N., Thomas, R., Tikhonova, E., Umunay, P., Usoltsev, V., Valencia, R., Valladares, F., van der Plas, F., Tran, D., Van Nuland, M., Vasquez Martinez, R., Verbeeck, H., Viana, H., Vibrans, A., Vieira, S., von Gadow, K., Wang, H.-F., Watson, J., Werner, G., Wiser, S., Wittmann, F., Wortel, V., Zagt, R., Zawila‐Niedzwiecki, T., Zhang, C., Zhao, X., Zhou, M., Zhu, Z.-X., Zo‐Bi, I., and Crowther, T.
Abstract: 1. Biodiversity is an important component of natural ecosystems, with higher species richness often correlating with an increase in ecosystem productivity. Yet, this relationship varies substantially across environments, typically becoming less pronounced at high levels of species richness. However, species richness alone cannot reflect all important properties of a community, including community evenness, which may mediate the relationship between biodiversity and productivity. If the evenness of a community correlates negatively with richness across forests globally, then a greater number of species may not always increase overall diversity and productivity of the system. Theoretical work and local empirical studies have shown that the effect of evenness on ecosystem functioning may be especially strong at high richness levels, yet the consistency of this remains untested at a global scale. 2. Here, we used a dataset of forests from across the globe, which includes composition, biomass accumulation and net primary productivity, to explore whether productivity correlates with community evenness and richness in a way that evenness appears to buffer the effect of richness. Specifically, we evaluated whether low levels of evenness in speciose communities correlate with the attenuation of the richness–productivity relationship. 3. We found that tree species richness and evenness are negatively correlated across forests globally, with highly speciose forests typically comprising a few dominant and many rare species. Furthermore, we found that the correlation between diversity and productivity changes with evenness: at low richness, uneven communities are more productive, while at high richness, even communities are more productive. 4. Synthesis. Collectively, these results demonstrate that evenness is an integral component of the relationship between biodiversity and productivity, and that the attenuating effect of richness on forest productivity might be partly explain
Published: 2023
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8. Co-limitation towards lower latitudes shapes global forest diversity gradients

Author: Liang, J., Gamarra, J.G.P., Picard, N., Zhou, M., Pijanowski, B., Jacobs, D.F., Reich, P.B., Crowther, T.W., Nabuurs, G.-J., de-Miguel, S., Fang, J., Woodall, C.W., Svenning, J.-C., Jucker, T., Bastin, J.-F., Wiser, S.K., Slik, F., Hérault, B., Alberti, G., Keppel, G., Hengeveld, G.M., Ibisch, P.L., Silva, C.A., ter Steege, H., Peri, P.L., Coomes, D.A., Searle, E.B., von Gadow, K., Jaroszewicz, B., Abbasi, A.O., Abegg, M., Yao, Y.C. A., Aguirre-Gutiérrez, J., Zambrano, A.M.A., Altman, J., Alvarez-Dávila, E., Álvarez-González, J.G., Alves, L.F., Amani, B.H.K., Amani, C.A., Ammer, C., Ilondea, B.A., Antón-Fernández, C., Avitabile, V., Aymard, G.A., Azihou, A.F., Baard, J.A., Baker, T.R., Balazy, R., Bastian, M.L., Batumike, R., Bauters, M., Beeckman, H., Benu, N.M.H., Bitariho, R., Boeckx, P., Bogaert, J., Bongers, F., Bouriaud, O., Brancalion, P.H.S., Brandl, S., Brearley, F. Q., Briseno-Reyes, J., Broadbent, E.N., Bruelheide, H., Bulte, E., Catlin, A.C., Cazzolla Gatti, R., César, R.G., Chen, H.Y. H., Chisholm, C., Cienciala, E., Colletta, G.D., Corral-Rivas, J.J., Cuchietti, A., Cuni-Sanchez, A., Dar, J.A., Dayanandan, S., de Haulleville, T., Decuyper, M., Delabye, S., Derroire, G., DeVries, B., Diisi, J., Do, T.V., Dolezal, J., Dourdain, A., Durrheim, G.P., Obiang, N.L.E., Ewango, C.E.N., Eyre, T.J., Fayle, T.M., Feunang, L.F.N., Finér, L., Fischer, M., Fridman, J., Frizzera, Lorenzo., de Gasper, A.L., Gianelle, D., Glick, H.B., Gonzalez-Elizondo, M.S., Gorenstein, Lev., Habonayo, R., Hardy, O.J., Harris, D.J., Hector, A., Hemp, A., Herold, M., Hillers, A., Hubau, W., Ibanez, T., Imai, N., Imani, G., Jagodzinski, A.M., Janecek, S., Johannsen, V.K., Joly, C.A., Jumbam, B., Kabelong, B. L. P. R., Kahsay, G.A., Karminov, V., Kartawinata, K., Kassi, J.ustin N., Kearsley, E., Kennard, D.K., Kepfer-Rojas, S., Khan, M. L., Kigomo, J.N., Kim, H.S., Klauberg, C., Klomberg, Y., Korjus, H., Kothandaraman, S., Kraxner, F., Kumar, A., Kuswandi, R., Lang, M., Lawes, M.J., Leite, R.V., Lentner, G., Lewis, S.L., Libalah, M.B., Lisingo, Janvier, López-Serrano, P.M., Lu, H., Lukina, N.V., Lykke, A.M., Maicher, V., Maitner, B.S., Marcon, E., Marshall, A.R., Martin, E. H., Martynenko, O., Mbayu, F.M., Mbuvi, M. T. E., Meave, J. A., Merow, C., Miscicki, S., Moreno, V. S., Morera, A., Mukul, S.A., Müller, J.C., Murdjoko, A., Nava-Miranda, M.G., Ndive, L.E., Neldner, V.J., Nevenic, R.V., Nforbelie, L.N., Ngoh, M.L., N’Guessan, A.E., Ngugi, M.R., Ngute, A. S. K., Njila, E. N. N., Nyako, M.C., Ochuodho, T.O., Oleksyn, J., Paquette, A., Parfenova, E.I., Park, M., Parren, M., Parthasarathy, N., Pfautsch, S., Phillips, O. L., Piedade, M.T. F., Piotto, D., Pollastrini, M., Poorter, L., Poulsen, J. R., Poulsen, A.D., Pretzsch, H., Rodeghiero, M., Rolim, S.G., Rovero, F., Rutishauser, E., Sagheb-Talebi, K., Saikia, P., Sainge, M.N., Salas-Eljatib, C., Salis, A., Schall, P., Shchepashchenko, D., Scherer-Lorenzen, M., Schmid, B., Schöngart, J., Šebeň, V., Sellan, G., Selvi, F., Serra-Diaz, J.M., Sheil, D., Shvidenko, A., Sist, P., Souza, A.F., Stereńczak, K.J., Sullivan, M. J. P., Sundarapandian, S., Svoboda, M., Swaine, M.D., Targhetta, N., Tchebakova, N., Trethowan, L.A., Tropek, R., Mukendi, J.T., Umunay, P.M., Usoltsev, V.A., Vaglio Laurin, G., Valentini, R., Valladares, F., van der Plas, F., Vega-Nieva, D.J., Verbeeck, H., Viana, H., Vibrans, A.C., Vieira, S.A., Vleminckx, J., Waite, C.E., Wang, H.-F., Wasingya, E.K., Wekesa, C., Westerlund, B., Wittmann, F., Wortel, V., Zawiła-Niedźwiecki, T., Zhang, C., Zhao, X., Zhu, J., Zhu, X., Zhu, Z.-X., Zo-Bi, I.C., Hui, C., Liang, J., Gamarra, J.G.P., Picard, N., Zhou, M., Pijanowski, B., Jacobs, D.F., Reich, P.B., Crowther, T.W., Nabuurs, G.-J., de-Miguel, S., Fang, J., Woodall, C.W., Svenning, J.-C., Jucker, T., Bastin, J.-F., Wiser, S.K., Slik, F., Hérault, B., Alberti, G., Keppel, G., Hengeveld, G.M., Ibisch, P.L., Silva, C.A., ter Steege, H., Peri, P.L., Coomes, D.A., Searle, E.B., von Gadow, K., Jaroszewicz, B., Abbasi, A.O., Abegg, M., Yao, Y.C. A., Aguirre-Gutiérrez, J., Zambrano, A.M.A., Altman, J., Alvarez-Dávila, E., Álvarez-González, J.G., Alves, L.F., Amani, B.H.K., Amani, C.A., Ammer, C., Ilondea, B.A., Antón-Fernández, C., Avitabile, V., Aymard, G.A., Azihou, A.F., Baard, J.A., Baker, T.R., Balazy, R., Bastian, M.L., Batumike, R., Bauters, M., Beeckman, H., Benu, N.M.H., Bitariho, R., Boeckx, P., Bogaert, J., Bongers, F., Bouriaud, O., Brancalion, P.H.S., Brandl, S., Brearley, F. Q., Briseno-Reyes, J., Broadbent, E.N., Bruelheide, H., Bulte, E., Catlin, A.C., Cazzolla Gatti, R., César, R.G., Chen, H.Y. H., Chisholm, C., Cienciala, E., Colletta, G.D., Corral-Rivas, J.J., Cuchietti, A., Cuni-Sanchez, A., Dar, J.A., Dayanandan, S., de Haulleville, T., Decuyper, M., Delabye, S., Derroire, G., DeVries, B., Diisi, J., Do, T.V., Dolezal, J., Dourdain, A., Durrheim, G.P., Obiang, N.L.E., Ewango, C.E.N., Eyre, T.J., Fayle, T.M., Feunang, L.F.N., Finér, L., Fischer, M., Fridman, J., Frizzera, Lorenzo., de Gasper, A.L., Gianelle, D., Glick, H.B., Gonzalez-Elizondo, M.S., Gorenstein, Lev., Habonayo, R., Hardy, O.J., Harris, D.J., Hector, A., Hemp, A., Herold, M., Hillers, A., Hubau, W., Ibanez, T., Imai, N., Imani, G., Jagodzinski, A.M., Janecek, S., Johannsen, V.K., Joly, C.A., Jumbam, B., Kabelong, B. L. P. R., Kahsay, G.A., Karminov, V., Kartawinata, K., Kassi, J.ustin N., Kearsley, E., Kennard, D.K., Kepfer-Rojas, S., Khan, M. L., Kigomo, J.N., Kim, H.S., Klauberg, C., Klomberg, Y., Korjus, H., Kothandaraman, S., Kraxner, F., Kumar, A., Kuswandi, R., Lang, M., Lawes, M.J., Leite, R.V., Lentner, G., Lewis, S.L., Libalah, M.B., Lisingo, Janvier, López-Serrano, P.M., Lu, H., Lukina, N.V., Lykke, A.M., Maicher, V., Maitner, B.S., Marcon, E., Marshall, A.R., Martin, E. H., Martynenko, O., Mbayu, F.M., Mbuvi, M. T. E., Meave, J. A., Merow, C., Miscicki, S., Moreno, V. S., Morera, A., Mukul, S.A., Müller, J.C., Murdjoko, A., Nava-Miranda, M.G., Ndive, L.E., Neldner, V.J., Nevenic, R.V., Nforbelie, L.N., Ngoh, M.L., N’Guessan, A.E., Ngugi, M.R., Ngute, A. S. K., Njila, E. N. N., Nyako, M.C., Ochuodho, T.O., Oleksyn, J., Paquette, A., Parfenova, E.I., Park, M., Parren, M., Parthasarathy, N., Pfautsch, S., Phillips, O. L., Piedade, M.T. F., Piotto, D., Pollastrini, M., Poorter, L., Poulsen, J. R., Poulsen, A.D., Pretzsch, H., Rodeghiero, M., Rolim, S.G., Rovero, F., Rutishauser, E., Sagheb-Talebi, K., Saikia, P., Sainge, M.N., Salas-Eljatib, C., Salis, A., Schall, P., Shchepashchenko, D., Scherer-Lorenzen, M., Schmid, B., Schöngart, J., Šebeň, V., Sellan, G., Selvi, F., Serra-Diaz, J.M., Sheil, D., Shvidenko, A., Sist, P., Souza, A.F., Stereńczak, K.J., Sullivan, M. J. P., Sundarapandian, S., Svoboda, M., Swaine, M.D., Targhetta, N., Tchebakova, N., Trethowan, L.A., Tropek, R., Mukendi, J.T., Umunay, P.M., Usoltsev, V.A., Vaglio Laurin, G., Valentini, R., Valladares, F., van der Plas, F., Vega-Nieva, D.J., Verbeeck, H., Viana, H., Vibrans, A.C., Vieira, S.A., Vleminckx, J., Waite, C.E., Wang, H.-F., Wasingya, E.K., Wekesa, C., Westerlund, B., Wittmann, F., Wortel, V., Zawiła-Niedźwiecki, T., Zhang, C., Zhao, X., Zhu, J., Zhu, X., Zhu, Z.-X., Zo-Bi, I.C., and Hui, C.
Published: 2022
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9. The number of tree species on Earth

Author: Cazzolla Gatti, R., Reich, P., Gamarra, J., Crowther, T., Hui, C., Morera, A., Bastin, J.-F., de-Miguel, S., Nabuurs, G.-J., Svenning, J.-C., Serra-Diaz, J., Merow, C., Enquist, B., Kamenetsky, M., Lee, J., Zhu, J., Fang, J., Jacobs, D., Pijanowski, B., Banerjee, A., Giaquinto, R., Alberti, G., Almeyda Zambrano, A., Alvarez-Davila, E., Araujo-Murakami, A., Avitabile, V., Aymard, G., Balazy, R., Baraloto, C., Barroso, J., Bastian, M., Birnbaum, P., Bitariho, R., Bogaert, J., Bongers, F., Bouriaud, O., Brancalion, P., Brearley, F., Broadbent, E., Bussotti, F., Castro da Silva, W., César, R., Češljar, G., Chama Moscoso, V., Chen, H., Cienciala, E., Clark, C., Coomes, D., Dayanandan, S., Decuyper, M., Dee, L., Del Aguila Pasquel, J., Derroire, G., Djuikouo, M., Van Do, T., Dolezal, J., Đorđević, I., Engel, J., Fayle, T., Feldpausch, T., Fridman, J., Harris, D., Hemp, A., Hengeveld, G., Herault, B., Herold, M., Ibanez, T., Jagodzinski, A., Jaroszewicz, B., Jeffery, K., Johannsen, V., Jucker, T., Kangur, A., Karminov, V., Kartawinata, K., Kennard, D., Kepfer-Rojas, S., Keppel, G., Khan, M., Khare, P., Kileen, T., Kim, H., Korjus, H., Kumar, A., Laarmann, D., Labrière, N., Lang, M., Lewis, S., Lukina, N., Maitner, B., Malhi, Y., Marshall, A., Martynenko, O., Monteagudo Mendoza, A., Ontikov, P., Ortiz-Malavasi, E., Pallqui Camacho, N., Paquette, A., Park, M., Parthasarathy, N., Peri, P., Petronelli, P., Pfautsch, S., Phillips, O., Picard, N., Piotto, D., Poorter, L., Poulsen, J., Pretzsch, H., Ramírez-Angulo, H., Restrepo Correa, Z., Rodeghiero, M., Rojas Gonzáles, R., Rolim, S., Rovero, F., Rutishauser, E., Saikia, P., Salas-Eljatib, C., Shchepashchenko, D., Scherer-Lorenzen, M., Šebeň, V., Silveira, M., Slik, F., Sonké, B., Souza, A., Stereńczak, K., Svoboda, M., Taedoumg, H., Tchebakova, N., Terborgh, J., Tikhonova, E., Torres-Lezama, A., van der Plas, F., Vásquez, R., Viana, H., Vibrans, A., Vilanova, E., Vos, V., Wang, H.-F., Westerlund, B., White, L., Wiser, S., Zawiła-Niedźwiecki, T., Zemagho, L., Zhu, Z., Zo-Bi, I., Liang, J., Cazzolla Gatti, R., Reich, P., Gamarra, J., Crowther, T., Hui, C., Morera, A., Bastin, J.-F., de-Miguel, S., Nabuurs, G.-J., Svenning, J.-C., Serra-Diaz, J., Merow, C., Enquist, B., Kamenetsky, M., Lee, J., Zhu, J., Fang, J., Jacobs, D., Pijanowski, B., Banerjee, A., Giaquinto, R., Alberti, G., Almeyda Zambrano, A., Alvarez-Davila, E., Araujo-Murakami, A., Avitabile, V., Aymard, G., Balazy, R., Baraloto, C., Barroso, J., Bastian, M., Birnbaum, P., Bitariho, R., Bogaert, J., Bongers, F., Bouriaud, O., Brancalion, P., Brearley, F., Broadbent, E., Bussotti, F., Castro da Silva, W., César, R., Češljar, G., Chama Moscoso, V., Chen, H., Cienciala, E., Clark, C., Coomes, D., Dayanandan, S., Decuyper, M., Dee, L., Del Aguila Pasquel, J., Derroire, G., Djuikouo, M., Van Do, T., Dolezal, J., Đorđević, I., Engel, J., Fayle, T., Feldpausch, T., Fridman, J., Harris, D., Hemp, A., Hengeveld, G., Herault, B., Herold, M., Ibanez, T., Jagodzinski, A., Jaroszewicz, B., Jeffery, K., Johannsen, V., Jucker, T., Kangur, A., Karminov, V., Kartawinata, K., Kennard, D., Kepfer-Rojas, S., Keppel, G., Khan, M., Khare, P., Kileen, T., Kim, H., Korjus, H., Kumar, A., Laarmann, D., Labrière, N., Lang, M., Lewis, S., Lukina, N., Maitner, B., Malhi, Y., Marshall, A., Martynenko, O., Monteagudo Mendoza, A., Ontikov, P., Ortiz-Malavasi, E., Pallqui Camacho, N., Paquette, A., Park, M., Parthasarathy, N., Peri, P., Petronelli, P., Pfautsch, S., Phillips, O., Picard, N., Piotto, D., Poorter, L., Poulsen, J., Pretzsch, H., Ramírez-Angulo, H., Restrepo Correa, Z., Rodeghiero, M., Rojas Gonzáles, R., Rolim, S., Rovero, F., Rutishauser, E., Saikia, P., Salas-Eljatib, C., Shchepashchenko, D., Scherer-Lorenzen, M., Šebeň, V., Silveira, M., Slik, F., Sonké, B., Souza, A., Stereńczak, K., Svoboda, M., Taedoumg, H., Tchebakova, N., Terborgh, J., Tikhonova, E., Torres-Lezama, A., van der Plas, F., Vásquez, R., Viana, H., Vibrans, A., Vilanova, E., Vos, V., Wang, H.-F., Westerlund, B., White, L., Wiser, S., Zawiła-Niedźwiecki, T., Zemagho, L., Zhu, Z., Zo-Bi, I., and Liang, J.
Abstract: One of the most fundamental questions in ecology is how many species inhabit the Earth. However, due to massive logistical and financial challenges and taxonomic difficulties connected to the species concept definition, the global numbers of species, including those of important and well-studied life forms such as trees, still remain largely unknown. Here, based on global ground-sourced data, we estimate the total tree species richness at global, continental, and biome levels. Our results indicate that there are ∼73,000 tree species globally, among which ∼9,000 tree species are yet to be discovered. Roughly 40% of undiscovered tree species are in South America. Moreover, almost one-third of all tree species to be discovered may be rare, with very low populations and limited spatial distribution (likely in remote tropical lowlands and mountains). These findings highlight the vulnerability of global forest biodiversity to anthropogenic changes in land use and climate, which disproportionately threaten rare species and thus, global tree richness.
Published: 2022

10. Fuel characterization and biomass combustion properties of selected native woody shrub species from central Portugal and NW Spain

Author: Viana, H., Vega-Nieva, D.J., Ortiz Torres, L., Lousada, J., and Aranha, J.
Published: 2012
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11. Prevalencia de la hipertensión arterial en poblaciones rurales del norte argentino

Author: De All, J., Lanfranconi, M., Bledel, I., Doval, H., Hughes, A., Laroti, A., Sánchez Aramburu, V., Gnocchi, D., Dubra, L., Gorosito, F., Henry, N., Leguia, M., Francos, J., González Viana, H., Saavedra, F., and Gnocchi, C.
Published: 2012
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12. Specificity and Sensitivity of Screening for Anti-HLA Antibodies in Kidney Allograft Dysfunction

Author: Viana, H., Nolasco, F., Santos, M.C., Carvalho, F., Galvão, M.J., Santos, A.R., Bordalo, J., and dos Santos, J.R.
Published: 2009
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13. Chronic Allograft Dysfunction—Is There a Treatment?

Author: Ferreira, A.C., Viana, H., Carvalho, F., Pinto, J.R., Galvão, M.J., Nolasco, F., and Santos, J.R.
Published: 2009
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14. A follow up model for patients with atrophic chronic gastritis and intestinal metaplasia

Author: Dinis-Ribeiro, M., Lopes, C., da Costa-Pereira, A., Guilherma, M., Barbosa, J., Lomba-Viana, H., Silva, R., and Moreira-Dias, L.
Subjects: Health
Abstract: Aim: To devise a follow up model for patients with gastric cancer associated lesions, such as atrophic chronic gastritis (ACG) and intestinal metaplasia (IM). Methods: Cohort study of 144 patients, [...]
Published: 2004

15. Author Correction: Climatic controls of decomposition drive the global biogeography of forest-tree symbioses

Author: Steidinger, B., Crowther, T., Liang, J., Van Nuland, M., Werner, G., Reich, P., Nabuurs, G., de-Miguel, S., Zhou, M., Picard, N., Herault, B., Zhao, X., Zhang, C., Routh, D., Peay, K., Abegg, M., Adou~Yao, C., Alberti, G., Almeyda~Zambrano, A., Alvarez-Davila, E., Alvarez-Loayza, P., Alves, L., Ammer, C., Antón-Fernández, C., Araujo-Murakami, A., Arroyo, L., Avitabile, V., Aymard, G., Baker, T., Ba?azy, R., Banki, O., Barroso, J., Bastian, M., Bastin, J., Birigazzi, L., Birnbaum, P., Bitariho, R., Boeckx, P., Bongers, F., Bouriaud, O., Brancalion, P., Brandl, S., Brearley, F., Brienen, R., Broadbent, E., Bruelheide, H., Bussotti, F., Cazzolla~Gatti, R., Cesar, R., Cesljar, G., Chazdon, R., Chen, H., Chisholm, C., Cienciala, E., Clark, C., Clark, D., Colletta, G., Condit, R., Coomes, D., Cornejo~Valverde, F., Corral-Rivas, J., Crim, P., Cumming, J., Dayanandan, S., de Gasper, A., Decuyper, M., Derroire, G., DeVries, B., Djordjevic, I., Iêda, A., Dourdain, A., Obiang, N., Enquist, B., Eyre, T., Fandohan, A., Fayle, T., Feldpausch, T., Finér, L., Fischer, M., Fletcher, C., Fridman, J., Frizzera, L., Gamarra, J., Gianelle, D., Glick, H., Harris, D., Hector, A., Hemp, A., Hengeveld, G., Herbohn, J., Herold, M., Hillers, A., Honorio Coronado, E., Huber, M., Hui, C., Cho, H., Ibanez, T., Jung, I., Imai, N., Jagodzinski, A., Jaroszewicz, B., Johannsen, V., Joly, C., Jucker, T., Karminov, V., Kartawinata, K., Kearsley, E., Kenfack, D., Kennard, D., Kepfer-Rojas, S., Keppel, G., Khan, M., Killeen, T., Kim, H., Kitayama, K., K{ö}hl, M., Korjus, H., Kraxner, F., Laarmann, D., Lang, M., Lewis, S., Lu, H., Lukina, N., Maitner, B., Malhi, Y., Marcon, E., Marimon, B., Marimon-Junior, B., Marshall, A., Martin, E., Martynenko, O., Meave, J., Melo-Cruz, O., Mendoza, C., Merow, C., Monteagudo~Mendoza, A., Moreno, V., Mukul, S., Mundhenk, P., Nava-Miranda, M., Neill, D., Neldner, V., Nevenic, R., Ngugi, M., Niklaus, P., Oleksyn, J., Ontikov, P., Ortiz-Malavasi, E., Pan, Y., Paquette, A., Parada-Gutierrez, A., Parfenova, E., Park, M., Parren, M., Parthasarathy, N., Peri, P., Pfautsch, S., Phillips, O., Piedade, M., Piotto, D., Pitman, N., Polo, I., Poorter, L., Poulsen, A., Poulsen, J., Pretzsch, H., Ramirez~Arevalo, F., Restrepo-Correa, Z., Rodeghiero, M., Rolim, S., Roopsind, A., Rovero, F., Rutishauser, E., Saikia, P., Saner, P., Schall, P., Schelhaas, M., Schepaschenko, D., Scherer-Lorenzen, M., Schmid, B., Sch{ö}ngart, J., Searle, E., Seben, V., Serra-Diaz, J., Salas-Eljatib, C., Sheil, D., Shvidenko, A., Silva-Espejo, J., Silveira, M., Singh, J., Sist, P., Slik, F., Sonké, B., Souza, A., Stere?czak, K., Svenning, J., Svoboda, M., Targhetta, N., Tchebakova, N., Steege, H., Thomas, R., Tikhonova, E., Umunay, P., Usoltsev, V., Valladares, F., van der Plas, F., Van Do, T., Vasquez~Martinez, R., Verbeeck, H., Viana, H., Vieira, S., von Gadow, K., Wang, H., Watson, J., Westerlund, B., Wiser, S., Wittmann, F., Wortel, V., Zagt, R., Zawila-Niedzwiecki, T., Zhu, Z., Zo-Bi, I., and Systems Ecology
Subjects: 0301 basic medicine, Biogeography, Bos- en Landschapsecologie, 02 engineering and technology, Forest and Nature Conservation Policy, 03 medical and health sciences, Laboratorium voor Plantenveredeling, Laboratory of Geo-information Science and Remote Sensing, Decomposition (computer science), Bos- en Natuurbeleid, Life Science, Forest and Landscape Ecology, Bosecologie en Bosbeheer, Laboratorium voor Geo-informatiekunde en Remote Sensing, Vegetatie, Vegetation, Multidisciplinary, Ecology, Published Erratum, 021001 nanoscience & nanotechnology, PE&RC, Forest Ecology and Forest Management, Tree (data structure), Plant Breeding, 030104 developmental biology, Geography, Biometris, Vegetatie, Bos- en Landschapsecologie, Vegetation, Forest and Landscape Ecology, 0210 nano-technology, Citation
Abstract: In this Letter, the middle initial of author G. J. Nabuurs was omitted, and he should have been associated with an additional affiliation: ‘Forest Ecology and Forest Management Group, Wageningen University and Research, Wageningen, The Netherlands’ (now added as affiliation 182). In addition, the following two statements have been added to the Supplementary Acknowledgements. (1): ‘We would particularly like to thank The French NFI for the work of the many field teams and engineers, who have made extraordinary efforts to make forest inventory data publicly available.’ (1): ‘Sergio de Miguel benefited from a Serra- Húnter Fellowship provided by the Generalitat of Catalonia.’ Finally, the second sentence of the Methods section should have cited the French NFI, which provided a national forestry database used in our analysis, to read as follows: ‘The GFBi database consists of individual-based data that we compiled from all the regional and national GFBi forest-inventory datasets, including the French NFI (IGN—French National Forest Inventory, raw data, annual campaigns 2005 and following, https://inventaire-forestier.ign.fr/spip.php?rubrique159, site accessed on 01 January 2015)’. All of these errors have been corrected online.
Published: 2019

16. Climatic controls of decomposition drive the global biogeography of forest-tree symbioses

Author: Steidinger, B. S., Crowther, T. W., Liang, J., Van Nuland, M. E., Werner, G. D. A., Reich, P. B., Nabuurs, G., de-Miguel, S., Zhou, M., Picard, N., Herault, B., Karminov, V., Sist, P., Targhetta, N., Tchebakova, N., Steege, H., Johannsen, V., Iêda, A., Alvarez-Loayza, P., Thomas, R., Bastin, J. -F., Ibanez, T., Tikhonova, E., Umunay, P., Dayanandan, S., Imai, N., Derroire, G., Usoltsev, V. A., Valladares, F., van der Plas, F., Dourdain, A., Van Do, T., Abegg, M., Enquist, B., Vasquez Martinez, R., Verbeeck, H., Joly, C. A., Viana, H., Alves, L. F., Jagodzinski, A. M., Vieira, S., Ngugi, M., de Gasper, A. L., Keppel, G., Obiang, N. L. E., Neldner, V., von Gadow, K., Wang, H. -F., Watson, J., Westerlund, B., Wiser, S., Wittmann, F., Wortel, V., Khan, M. L., Kraxner, F., Jucker, T., Zagt, R., Birigazzi, L., Ortiz-Malavasi, E., Baker, T., Birnbaum, P., Bitariho, R., Kartawinata, K., Niklaus, P., Kennard, D., Laarmann, D., Boeckx, P., Bongers, F., Bouriaud, O., Kim, H. S., Silveira, M., Köhl, M., Brancalion, P. H. S., Brandl, S., Brearley, F. Q., Brienen, R., Lang, M., Broadbent, E., Bruelheide, H., Oleksyn, J., Bussotti, F., Searle, E., Nevenic, R., Kearsley, E., Schmid, B., Kitayama, K., Cazzolla Gatti, R., Zhang, C., Cesar, R., Cesljar, G., Chazdon, R., Chen, H. Y. H., Chisholm, C., Cienciala, E., Park, M., Ontikov, P., Clark, C. J., Eyre, T., Sonké, B., Clark, D., Sheil, D., DeVries, B., Fandohan, A. B., Fayle, T. M., Feldpausch, T. R., Seben, V., Parren, M., Kepfer-Rojas, S., Finér, L., Lewis, S., Fischer, M., Fletcher, C., Pan, Y., Almeyda Zambrano, A., Parada-Gutierrez, A., Fridman, J., Frizzera, L., Gamarra, J. G. P., Parthasarathy, N., Gianelle, D., Pfautsch, S., Glick, H. B., Harris, D., Serra-Diaz, J. M., Hector, A., Zhao, X., Schöngart, J., Hemp, A., Zhu, Z. -X., Paquette, A., Peri, P. L., Zawila-Niedzwiecki, T., Hengeveld, G., Herbohn, J., Herold, M., Hillers, A., Honorio, Coronado, E. N., Huber, M., Hui, C., Slik, F., Salas-Eljatib, C., Cho, H., Lu, H., Araujo-Murakami, A., Korjus, H., Lukina, N., Maitner, B., Shvidenko, A., Zo-Bi, I. C., Singh, J., Malhi, Y., Marcon, E., Marimon, B. S., Souza, A. F., Decuyper, M., Svenning, J. -C., Marimon-Junior, B. H., Marshall, A. R., Martin, E., Routh, D., Martynenko, O., Meave, J. A., Melo-Cruz, O., Coomes, D., Silva-Espejo, J., Ammer, C., Colletta, G., Stereńczak, K., Mendoza, C., Merow, C., Monteagudo Mendoza, A., Moreno, V., Mukul, S. A., Mundhenk, P., Nava-Miranda, M. G., Antón-Fernández, C., Bałazy, R., Peay, K. G., Phillips, O., Neill, D., Cumming, J., Parfenova, E., Piedade, M. T., Piotto, D., Adou Yao, C. Y., Cornejo Valverde, F., Alvarez-Davila, E., Banki, O., Pitman, N. C. A., Polo, I., Poorter, L., Arroyo, L., Kenfack, D., Aymard, G., Poulsen, A. D., Poulsen, J. R., Pretzsch, H., Ramirez Arevalo, F., Barroso, J., Restrepo-Correa, Z., Rodeghiero, M., Corral-Rivas, J. J., Rolim, S., Jaroszewicz, B., Condit, R., Alberti, G., Jung, I., Avitabile, V., Roopsind, A., Bastian, M., Rovero, F., Rutishauser, E., Saikia, P., Saner, P., Schall, P., Schelhaas, M. -J., Djordjevic, I., Crim, P., Schepaschenko, D., Svoboda, M., Killeen, T., Scherer-Lorenzen, M., Steidinger, B. S., Crowther, T. W., Liang, J., Van Nuland, M. E., Werner, G. D. A., Reich, P. B., Nabuurs, G., de-Miguel, S., Zhou, M., Picard, N., Herault, B., Karminov, V., Sist, P., Targhetta, N., Tchebakova, N., Steege, H., Johannsen, V., Iêda, A., Alvarez-Loayza, P., Thomas, R., Bastin, J. -F., Ibanez, T., Tikhonova, E., Umunay, P., Dayanandan, S., Imai, N., Derroire, G., Usoltsev, V. A., Valladares, F., van der Plas, F., Dourdain, A., Van Do, T., Abegg, M., Enquist, B., Vasquez Martinez, R., Verbeeck, H., Joly, C. A., Viana, H., Alves, L. F., Jagodzinski, A. M., Vieira, S., Ngugi, M., de Gasper, A. L., Keppel, G., Obiang, N. L. E., Neldner, V., von Gadow, K., Wang, H. -F., Watson, J., Westerlund, B., Wiser, S., Wittmann, F., Wortel, V., Khan, M. L., Kraxner, F., Jucker, T., Zagt, R., Birigazzi, L., Ortiz-Malavasi, E., Baker, T., Birnbaum, P., Bitariho, R., Kartawinata, K., Niklaus, P., Kennard, D., Laarmann, D., Boeckx, P., Bongers, F., Bouriaud, O., Kim, H. S., Silveira, M., Köhl, M., Brancalion, P. H. S., Brandl, S., Brearley, F. Q., Brienen, R., Lang, M., Broadbent, E., Bruelheide, H., Oleksyn, J., Bussotti, F., Searle, E., Nevenic, R., Kearsley, E., Schmid, B., Kitayama, K., Cazzolla Gatti, R., Zhang, C., Cesar, R., Cesljar, G., Chazdon, R., Chen, H. Y. H., Chisholm, C., Cienciala, E., Park, M., Ontikov, P., Clark, C. J., Eyre, T., Sonké, B., Clark, D., Sheil, D., DeVries, B., Fandohan, A. B., Fayle, T. M., Feldpausch, T. R., Seben, V., Parren, M., Kepfer-Rojas, S., Finér, L., Lewis, S., Fischer, M., Fletcher, C., Pan, Y., Almeyda Zambrano, A., Parada-Gutierrez, A., Fridman, J., Frizzera, L., Gamarra, J. G. P., Parthasarathy, N., Gianelle, D., Pfautsch, S., Glick, H. B., Harris, D., Serra-Diaz, J. M., Hector, A., Zhao, X., Schöngart, J., Hemp, A., Zhu, Z. -X., Paquette, A., Peri, P. L., Zawila-Niedzwiecki, T., Hengeveld, G., Herbohn, J., Herold, M., Hillers, A., Honorio, Coronado, E. N., Huber, M., Hui, C., Slik, F., Salas-Eljatib, C., Cho, H., Lu, H., Araujo-Murakami, A., Korjus, H., Lukina, N., Maitner, B., Shvidenko, A., Zo-Bi, I. C., Singh, J., Malhi, Y., Marcon, E., Marimon, B. S., Souza, A. F., Decuyper, M., Svenning, J. -C., Marimon-Junior, B. H., Marshall, A. R., Martin, E., Routh, D., Martynenko, O., Meave, J. A., Melo-Cruz, O., Coomes, D., Silva-Espejo, J., Ammer, C., Colletta, G., Stereńczak, K., Mendoza, C., Merow, C., Monteagudo Mendoza, A., Moreno, V., Mukul, S. A., Mundhenk, P., Nava-Miranda, M. G., Antón-Fernández, C., Bałazy, R., Peay, K. G., Phillips, O., Neill, D., Cumming, J., Parfenova, E., Piedade, M. T., Piotto, D., Adou Yao, C. Y., Cornejo Valverde, F., Alvarez-Davila, E., Banki, O., Pitman, N. C. A., Polo, I., Poorter, L., Arroyo, L., Kenfack, D., Aymard, G., Poulsen, A. D., Poulsen, J. R., Pretzsch, H., Ramirez Arevalo, F., Barroso, J., Restrepo-Correa, Z., Rodeghiero, M., Corral-Rivas, J. J., Rolim, S., Jaroszewicz, B., Condit, R., Alberti, G., Jung, I., Avitabile, V., Roopsind, A., Bastian, M., Rovero, F., Rutishauser, E., Saikia, P., Saner, P., Schall, P., Schelhaas, M. -J., Djordjevic, I., Crim, P., Schepaschenko, D., Svoboda, M., Killeen, T., and Scherer-Lorenzen, M.
Abstract: The identity of the dominant root-associated microbial symbionts in a forest determines the ability of trees to access limiting nutrients from atmospheric or soil pools 1,2 , sequester carbon 3,4 and withstand the effects of climate change 5,6 . Characterizing the global distribution of these symbioses and identifying the factors that control this distribution are thus integral to understanding the present and future functioning of forest ecosystems. Here we generate a spatially explicit global map of the symbiotic status of forests, using a database of over 1.1 million forest inventory plots that collectively contain over 28,000 tree species. Our analyses indicate that climate variables—in particular, climatically controlled variation in the rate of decomposition—are the primary drivers of the global distribution of major symbioses. We estimate that ectomycorrhizal trees, which represent only 2% of all plant species 7 , constitute approximately 60% of tree stems on Earth. Ectomycorrhizal symbiosis dominates forests in which seasonally cold and dry climates inhibit decomposition, and is the predominant form of symbiosis at high latitudes and elevation. By contrast, arbuscular mycorrhizal trees dominate in aseasonal, warm tropical forests, and occur with ectomycorrhizal trees in temperate biomes in which seasonally warm-and-wet climates enhance decomposition. Continental transitions between forests dominated by ectomycorrhizal or arbuscular mycorrhizal trees occur relatively abruptly along climate-driven decomposition gradients; these transitions are probably caused by positive feedback effects between plants and microorganisms. Symbiotic nitrogen fixers—which are insensitive to climatic controls on decomposition (compared with mycorrhizal fungi)—are most abundant in arid biomes with alkaline soils and high maximum temperatures. The climatically driven global symbiosis gradient that we document provides a spatially explicit quantitative understanding of microbial sym, 33Smithsonian’s National Zoo and Conservation Biology Institute, Washington, DC, USA. 34Institute of Tropical Forest Conservation, Mbarara University of Sciences and Technology, Mbarara, Uganda. 35Isotope Bioscience Laboratory - ISOFYS, Ghent University, Ghent, Belgium. 36Integrated Center for Research, Development and Innovation in Advanced Materials, Nanotechnologies, and Distributed Systems for Fabrication and Control (MANSiD), Stefan cel Mare University of Suceava, Suceava, Romania. 37Department of Forest Sciences, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil. 38Bavarian State Institute of Forestry, Freising, Germany. 39Manchester Metropolitan University, Manchester, UK. 40Institute of Biology, Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle-Wittenberg, Germany. 41German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany. 42Department of Agriculture, Food, Environment and Forest (DAGRI), University of Firenze, Florence, Italy. 43Biological Institute, Tomsk State University, Tomsk, Russia. 44Department of Spatial Regulation, GIS and Forest Policy, Institute of Forestry, Belgrade, Serbia. 45Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA. 46Tropical Forests and People Research Centre, University of the Sunshine Coast, Maroochydore, Queensland, Australia. 47Faculty of Natural Resources Management, Lakehead University, Thunder Bay, Ontario, Canada. 48Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, China. 49Institute of Integrative Biology, ETH Zürich, Zurich, Switzerland. 50IFER - Institute of Forest Ecosystem Research, Jilove u Prahy, Czech Republic. 51Global Change Research Institute CAS, Brno, Czech Republic. 52Nicholas School of the Environment, Duke University, Durham, NC, USA. 53Department of Biology, University of Missouri-St Loui
Published: 2019

17. Should We Exclude Individuals from Endoscopy Based Exclusively on the Absence of Alarm Symptoms?

Author: Dinis-Ribeiro, M., Lomba-Viana, H., Silva, R., Fernandes, N., Abreu, N., Brandaão, C., Moreira-Dias, L., and da Costa-Pereira, A.
Published: 2004

18. Possible phototoxicity with subsequent progression to discoid lupus following pantoprazole administration

Author: Correia, O., Lomba Viana, H., Azevedo, R., Delgado, L., and Polónia, J.
Published: 2001

19. A 54-Year-Old Man with New-Onset Nephrotic Syndrome

Author: Marques da Costa, B, Góis, M, Sousa Viana, H, and Nolasco, F
Subjects: Nephrotic Syndrome, HCC NEF
Abstract: Submitted by Dulce Barreto (mdulce.barreto@chlc.min-saude.pt) on 2018-12-04T13:46:17Z No. of bitstreams: 1 Port J Nephrol Hypert 2018_32_85.pdf: 866308 bytes, checksum: de61365b3b783c44458827f629d828b1 (MD5) Made available in DSpace on 2018-12-04T13:46:17Z (GMT). No. of bitstreams: 1 Port J Nephrol Hypert 2018_32_85.pdf: 866308 bytes, checksum: de61365b3b783c44458827f629d828b1 (MD5) Previous issue date: 2018 info:eu-repo/semantics/publishedVersion
Published: 2018

20. Bosbouwkundige richtlijnen voor Europese hakhoutbossen

Author: Nicolescu, V., Carvalho, J., Hochbichler, E., Bruckman, V., Piqué-Nicolau, M, Hernia, C, Viana, H, Stochlova, P., Ertekin, M., Tijardovic, M., Dubravac, T., Vandekerkhove, Kris, Kofman, P., Rossney, D., and Unrau, A.
Subjects: Europe, Forest management, B430-sylviculture
Abstract: Nicolescu, V.-N., Carvalho, J., Hochbichler, E., Bruckman, V., Piqué-Nicolau, M.,Hernea, C., Viana, H., Štochlová, P., Ertekin, M., Tijardovic, M., Dubravac, T., Vandekerkhove, K.,Kofman, P.D., Rossney, D., Unrau, A. (2017). Silvicultural guidelines for European coppice forests.COST Action FP1301 Reports. Freiburg, Germany: Albert Ludwig University of Freiburg
Published: 2017

21. Pinus Pinaster and Eucalyptus Globulus Energetic Properties and Ash Characterization

Author: Viana, H., primary, Rodrigues, A., additional, Lopes, D.M.M., additional, Godina, R., additional, Nunes, L.J.R., additional, and Matias, J.C.O., additional
Published: 2018
Full Text: View/download PDF

22. Positive Biodiversity–Productivity Relationship Predominant in Global Forests

Author: Liang, J, Crowther, TW, Picard, N, Wiser, S, Zhou, M, Alberti, G, Schulze, E-D, McGuire, AD, Bozzato, F, Pretzsch, H, de-Miguel, S, Paquette, A, Hérault, B, Scherer-Lorenzen, M, Barrett, CB, Glick, HB, Hengeveld, GM, Nabuurs, GJ, Pfautsch, S, Viana, H, Vibrans, AC, Ammer, C, Schall, P, Verbyla, D, Tchebakova, N, Fischer, M, Watson, JV, Chen, HYH, Lei, X, Schelhaas, M-J, Lu, H, Gianelle, D, Parfenova, EI, Salas, C, Lee, E, Lee, B, Kim, HS, Bruelheide, H, Coomes, DA, Piotto, D, Sunderland, T, Schmid, B, Gourlet-Fleury, S, Sonké, B, Tavani, R, Zhu, J, Brandl, S, Vayreda, J, Kitahara, F, Searle, EB, Neldner, VJ, Ngugi, MR, Baraloto, B, Frizzera, L, Bałazy, R, Oleksyn, J, Zawiła-Niedźwiecki, T, Bouriaud, O, Bussotti, F, Finér, L, Jaroszewicz, B, Jucker, T, Valladares, V, Jagodzinski, AM, Peri, PL, Gonmadje, C, Marthy, W, O'Brien, T, Martin, EH, Marshall, AR, Rovero, F, Bitariho, R, Niklaus, PA, Alvarez-Loayza, P, Chamuya, N, Valencia, R, Mortier, F, Wortel, V, Engone-Obiang, NL, Ferreira, LV, Odeke, DE, Vasquez, RM, Lewis, SL, and Reich, PB
Abstract: The biodiversity–productivity relationship (BPR) is foundational to our understanding of the global extinction crisis and its impacts on ecosystem functioning. Understanding BPR is critical for the accurate valuation and effective conservation of biodiversity. Using ground-sourced data from 777,126 permanent plots, spanning 44 countries and most terrestrial biomes, we reveal a globally consistent positive concave-down BPR, whereby a continued biodiversity loss would result in an accelerating decline in forest productivity worldwide. The value of biodiversity in maintaining forest productivity—US$396–579 billion per year according to our estimation—is by itself over five times greater than the total cost of effective global conservation. This highlights the need for a worldwide re-assessment of biodiversity values, forest management strategies, and conservation priorities.
Published: 2016

23. An Unexpected Cause of Chronic Renal Dysfunction and Haemato-Proteinuria

Author: Sousa Viana, H, Mesquita, I, Pataca, I, Carvalho, F, and Nolasco, F
Subjects: Woman, Biopsy, Renal Dysfunction, HCC NEF
Abstract: Submitted by Dulce Barreto (mdulce.barreto@chlc.min-saude.pt) on 2018-12-04T11:07:27Z No. of bitstreams: 1 Port J Nephrol Hypert 2016_30_153.pdf: 416867 bytes, checksum: f627b9e4565a45efd90523260ed3206b (MD5) Made available in DSpace on 2018-12-04T11:07:27Z (GMT). No. of bitstreams: 1 Port J Nephrol Hypert 2016_30_153.pdf: 416867 bytes, checksum: f627b9e4565a45efd90523260ed3206b (MD5) Previous issue date: 2016 info:eu-repo/semantics/publishedVersion
Published: 2016

24. Oxalate Nephropathy Following Roux‑en‑Y Gastric Bypass Surgery – Mini‑Review

Author: Verdelho, M, Mendes, M, Ribeiro, F, Sousa Viana, H, Carvalho, F, and Nolasco, F
Subjects: Hyperoxaluria, Roux‑en‑Y gastric, Malabsorption, Bariatric Surgery, HCC NEF, Oxalate Nephropathy, Bypass surgery
Abstract: Oxalate Nephropathy is characterised by the presence of tubular crystalline deposits of calcium oxalate, which can lead to both acute and chronic tubular injury and progressive renal failure. Enteric hyperoxaluria is the most common cause of moderate hyperoxaluria; it occurs in conditions associated with fat or bile acid malabsorption, which include jejunoileal bypass and other bariatric procedures such as Roux‑en‑Y gastric bypass surgery. We present the clinical case of a 69‑year‑old man who was hospitalised for non‑oliguric renal dysfunction, with a serum creatinine of 10 mg/dl and normocytic normochromic anaemia. There was no prior history of renal disease. Twenty months before admission the patient was diagnosed with a gastro‑oesophageal junction adenocarcinoma and was treated with pre‑operative chemotherapy, followed by total gastrectomy, with a Roux‑en‑Y gastric bypass reconstruction. On discharge from gastric surgery, renal function was normal. On the first day of hospital stay haemodialysis was initiated. Over the following days, the rapid unexplained renal impairment was investigated, and this workup [2] included a kidney biopsy. Histological examination of the biopsy specimen revealed a predominantly interstitial nephropathy with tubular atrophy and interstitial fibrosis, with bright intra‑tubular calcium oxalate crystals in over 50% of the tubules and so the histological diagnosis was of oxalate nephropathy. Subsequently, no recovery of renal function was observed, so the patient is currently undergoing regular haemodialysis. Oxalate nephropathy is a rare but severe complication of Roux‑en‑Y gastric bypass surgery that can lead to a rapid progression to kidney failure. Although the treatment of obesity is the main indication for this surgery, this is also the preferred approach for gastrointestinal reconstruction after total gastrectomy for treatment of gastric carcinoma. Considering the rapid progression of oxalate nephropathy to kidney failure, patients who undergo Roux‑en‑Y gastric bypass surgery should have regular follow‑up of renal function. info:eu-repo/semantics/publishedVersion
Published: 2016

25. A New Anatomo-Clinical Approach to an Old Disease

Author: Sousa Viana, H, Góis, M, Mesquita, I, Santos, AR, Santos, MC, Carvalho, F, and Nolasco, F
Subjects: Nephrotic Syndrome, Adolescent, Biopsy, HCC NEF
Abstract: Submitted by Dulce Barreto (mdulce.barreto@chlc.min-saude.pt) on 2018-12-04T11:01:34Z No. of bitstreams: 1 Port J Nephrol Hypert 2016_30_76.pdf: 620795 bytes, checksum: 5f01e51b3bd734e0c32c4399063472dc (MD5) Made available in DSpace on 2018-12-04T11:01:34Z (GMT). No. of bitstreams: 1 Port J Nephrol Hypert 2016_30_76.pdf: 620795 bytes, checksum: 5f01e51b3bd734e0c32c4399063472dc (MD5) Previous issue date: 2016 info:eu-repo/semantics/publishedVersion
Published: 2016

26. Anaemia, Acute Renal Failure and Proteinuria – A Case to Solve

Author: Sousa Viana, H, Ruivo, M, Calado, J, Carvalho, F, and Nolasco, F
Subjects: Proteinuria, Anaemia, Acute Renal Failure, HCC NEF
Abstract: Submitted by Dulce Barreto (mdulce.barreto@chlc.min-saude.pt) on 2018-12-04T11:54:41Z No. of bitstreams: 1 Port J Nephrol Hypert 2016_30_228.pdf: 1105259 bytes, checksum: c5079ffc0922dfaca191cf901918eacd (MD5) Made available in DSpace on 2018-12-04T11:54:41Z (GMT). No. of bitstreams: 1 Port J Nephrol Hypert 2016_30_228.pdf: 1105259 bytes, checksum: c5079ffc0922dfaca191cf901918eacd (MD5) Previous issue date: 2016 info:eu-repo/semantics/publishedVersion
Published: 2016

27. A Rare Malignancy in the Post -Transplant Period: Myeloma Cast Nephropathy

Author: Mesquita, I, Viana, H, Possante, M, João, C, Carvalho, S, Silva, C, Aires, I, Ferreira, A, Remédio, F, Carvalho, F, and Nolasco, F
Subjects: Post-Transplant, surgical procedures, operative, hemic and lymphatic diseases, Myeloma, HCC NEF, Kidney Transplantation, Nephropathy
Abstract: Myeloma-associated renal disorders are rare events among renal transplants and can occur as recurrent or de novo disease. We describe an unusual case of renal allograft dysfunction due to myeloma cast nephropathy occurring 19 years after having received a renal transplant in a patient with no prior history of multiple myeloma or monoclonal gammopathy preceding transplantation. Our patient was treated with five cycles of chemotheraphy(bortezomib, melphalan and steroids), which resulted in short-term improvement in allograft dysfunction and complete haematological remission. The longer patient and graft survival after renal transplantation make post-transplant lymphoproliferative disease more frequent. Multiple myeloma after kidney transplant is rare and an elevated index of suspicion is necessary to make a timely diagnosis of this serious disease. Further work is needed to identify the best treatment options for these patients. info:eu-repo/semantics/publishedVersion
Published: 2016

28. FRI0274 Morfological indexes in lupus nephritis – do they have prognostic value?

Author: Navarro, D, primary, Ferreira, AC, additional, Viana, H, additional, Carvalho, F, additional, and Nolasco, F, additional
Published: 2017
Full Text: View/download PDF

29. AB0445 Hydroxychloroquine's impact in renal biopsy and outcomes of lupus nephritis

Author: Navarro, D, primary, Ferreira, AC, additional, Viana, H, additional, Carvalho, F, additional, and Nolasco, F, additional
Published: 2017
Full Text: View/download PDF

30. Nefrite túbulo-intersticial hipocomplementémica idiopática

Author: Azevedo, A, Mesquita, I, Viana, H, Rocha, G, Ferreira, C, Fernandes, V, Murinello, A, Carvalho, F, and Nolasco, F
Subjects: renal failure, idiopathic tubulointersticial nephritis, insuficiência renal, Hipocomplementémia, HCC NEF, Hypocomplementaemia, Nephritis, Tubulointerstitial, HCC MED, Renal Failure, Chronic, nefrite túbulo-intersticial idiopática
Abstract: Background: Tubulointerstitial nephritis (TIN) is a common cause of kidney injury typically seen in association with drug exposure, infection or autoimmune diseases. However, TIN with interstitial immune complex deposition, without glomerular injury, is rarely observed. Case: We report a case of a 64-yearold Indian woman admitted for dialysis-requiring renal failure, without involvement of other organs. Urinalysis showed blood 3+ and 24h proteinuria of 1.5 g. Renal ultrasound revealed normal sized kidneys with loss of parenchymal-sinus differentiation. Laboratory tests disclosed low C3, positive ANA but negative anti-dsDNA, SSA and SSB. Serum protein electrophoresis was normal. The renal biopsy showed tubulointerstitial nephritis with positive immunoglobulin staining involving the interstitium and tubular basement membrane with glomerular sparing. The patient started prednisolone (1mg/kg/day) without recovery of the renal function. Conclusion: Idiopathic hypocomplementaemic tubulointerstitial nephritis is a rare disease with few cases described in the literature. To our knowledge this is the first case reported in Portugal A nefrite tubulo-intersticial (NTI) é uma causa comum de lesão renal, tipicamente associada a toma de fármacos, infecções ou doenças auto-imunes. No entanto, as NTI com deposição de imuno-complexos no interstício, sem envolvimento glomerular são raramente observadas. Apresentámos o caso de uma doente do sexo feminino, 64 anos, etnia indiana, admitida no nosso hospital, por insuficiência renal dependente de diálise. A análise sumária de urina revelou hematúria (3+) e a proteinúria nas 24h foi quantificada em 1,5g. A ecografia renal revelou rins de dimensões normais com perda da diferenciação parenquimo-sinusal. Analiticamente salienta-se, C3 baixo, ANA positivo, mas anticorpo anti dsDNA, SSA e SSB negativo. A electroforese de proteínas séricas não apresentava alterações. O doseamento de imunoglobulinas era normal, sem evidência de componente monoclonal. O restante estudo imunológico não apresentou alterações. Durante o internamento a doente realizou uma biópsia renal que mostrou nefrite tubulo-intersticial, com depósito de imunoglobulinas envolvendo o interstício e a membrana basal tubular, poupando os glomérulos. A doente iniciou terapêutica com prednisolona (1mg/Kg/dia), sem recuperação da função renal. A nefrite tubulo-intersticial hipocomplementémica idiopática é uma doença rara, com poucos casos descritos na literatura. Tanto quanto sabemos, este é o primeiro caso descrito em Portugal
Published: 2015

31. Anticorpo Anti-Receptor da Fosfolipase A2 no Diagnóstico de Nefropatia Membranosa Idiopática

Author: Meneses, G, Viana, H, Santos, MC, Ferreira, C, Calado, J, Carvalho, F, Remédio, F, and Nolasco, F
Subjects: Nephrotic Syndrome, Receptors, Phospholipase A2, HCC NEF, Nephropathy, Membranous
Abstract: Circulating anti-phospholipase A2 receptor antibodies (anti-PLA2R) have been described in 70% to 80% of the patients with idiopathic membranous nephropathy (iMN), but not in patients with secondary membranous nephropathy or other glomerular diseases. The goal of this study was to evaluate the sensitivity and specificity of the assay for anti-PLA2R in the diagnosis of iMN. Anti-PLA2R IgG, Elisa and immunofluorescence tests were used to detect circulating anti-PLA2R. These tests were applied in 53 patients who had a kidney biopsy. Of these, 38 had histological diagnosis of membranous nephropathy (MN) and the remaining had other glomerular diseases. The MN was classified as idiopathic in 33 patients after clinical exclusion of secondary causes. Anti-PLA2R were positive in 57.6% of the patients with iMN. All patients with secondary membranous nephropathy or other glomerular diseases did not show circulating anti-PLA2R. The sensitivity was 57.6% (CI 39.2-74.5) and specificity 100% (CI 47.8-100), AUC 0.788; p < 0.0001 for the detection of iMN. 71.4% of the iMN patients that tested negative for anti-PLA2R were in partial or complete remission. The detection of anti-PLA2R in the studied population had a specificity of 100% for the iMN diagnosis. Prior treatments seem to make the test negative and contribute to a lower sensitivity.
Published: 2015

32. Púrpura de Henoch-Schönlein Associada a Adenocarcinoma do Pulmão

Author: Azevedo, A, Fernandes, V, Navarro, D, Ferreira, AC, Sousa, J, Viana, H, Carvalho, F, and Nolasco, F
Subjects: Vasculitis, Purpura, Schönlein-Henoch, Lung Neoplasms, HCC NEF, Renal Insufficiency
Abstract: Introduction: The Henoch-Schönlein purpura (HSP) is an immunoglobulin A (IgA)-mediated smallvessel systemic vasculitis, rare in adults. The association with solid tumours has been described, especially with lung cancer. Case Report: We present the case of a 60-year-old Caucasian male, diagnosed with lung adenocarcinoma that underwent surgical resection without (neo)adjuvant theraphy. Two months latter he was admitted for abdominal pain, purpuric rash on his lower extremities and acute kidney injury, with serum creatinine (Scr) of 2 mg/dl. Urinalysis revealed haematuria and 24h proteinuria (P24h) of 1.5 g. The serum protein electrophoresis, complement components C3 and C4, circulating immune complexes, cryoglobulins, ANCA, ANA, anti-dsDNA and the remaining immunologic study as screening for viral infections (HCV, HBV and HIV) were negative. Renal ultrasound was normal and kidney biopsy revealed mild mesangial proliferation; 2 cellular glomerular crescents and 1 fibrinoid necrosis lesion; large amounts of red blood cell casts; lymphocytic infiltration in the intertubular interstitial capillaries; moderate arteriolar hyalinosis. Immunofluorescence demonstrated mesangial and parietal deposits of IgA. The diagnosis of HSP was assumed, and the patient started prednisolone 1 mg/kg/day. Ten months after diagnosis the patient’s baseline Scr is 1.4 mg/dl with P24h of 0.18g, without haematuria. Conclusion: Although this is a rare association and the exact mechanism behind the disease is yet unknown, physicians should be aware of it. The early recognition and treatment may prevent renal disease progression.
Published: 2015

33. Henoch-Schönlein Purpura Associated with Pulmonary Adenocarcinoma

Author: Azevedo, A, Fernandes, V, Navarro, D, Ferreira, AC, Sousa, J, Viana, H, Carvalho, F, and Nolasco, F
Subjects: Vasculitis, Purpura, Schönlein-Henoch, Lung Neoplasms, HCC NEF, Renal Insufficiency
Abstract: Submitted by Ana Quininha (ana.quininha@chlc.min-saude.pt) on 2016-03-09T15:36:09Z No. of bitstreams: 1 RPNH 2015 248.pdf: 450396 bytes, checksum: e9826b6a897ebdcffbfcc9d99b5ddb9b (MD5) Made available in DSpace on 2016-03-09T15:36:09Z (GMT). No. of bitstreams: 1 RPNH 2015 248.pdf: 450396 bytes, checksum: e9826b6a897ebdcffbfcc9d99b5ddb9b (MD5) Previous issue date: 2015
Published: 2015

34. Nephrotic Syndrome in HIV/HCV Co-Infected Patient

Author: Viana, H, Mesquita, I, Azevedo, A, Ribeiro, F, Carvalho, F, and Nolasco, F
Subjects: Nephrotic Syndrome, immune system diseases, HIV, HCC NEF, skin and connective tissue diseases
Abstract: Submitted by Ana Quininha (ana.quininha@chlc.min-saude.pt) on 2016-01-26T16:41:58Z No. of bitstreams: 1 RPNH 2015 173.pdf: 336979 bytes, checksum: 14bc5d994cbaf22c5feb5647fe3c5a47 (MD5) Made available in DSpace on 2016-01-26T16:41:58Z (GMT). No. of bitstreams: 1 RPNH 2015 173.pdf: 336979 bytes, checksum: 14bc5d994cbaf22c5feb5647fe3c5a47 (MD5) Previous issue date: 2015
Published: 2015

35. Positive biodiversity-productivity relationship predominant in global forests

Author: Liang, J., Crowther, Thomas Ward, Picard, N., Wiser, S., Zhou, M., Alberti, G., Schulze, Ernst‐Detlef, McGuire, A.D., Bozzato, F., Pretzsch, H., De-Miguel, Sergio, Paquette, A., Hérault, Bruno, Scherer-Lorenzen, Michael, Barrett, C.B., Glick, H.B., Hengeveld, G.M., Nabuurs, G.J., Pfautsch, S., Viana, H., Vibrans, A.C., Ammer, C., Schall, P., Verbyla, D., Tchebakova, N., Fischer, Markus, Watson, J.V., Chen, H.Y.H., Lei, X., Schelhaas, M.J., Lu, H., Gianelle, D., Parfenova, E.I., Salas, C., Lee, E., Lee, B., Kim, H.S., Bruelheide, H., Coomes, David A., Piotto, D., Sunderland, T., Schmid, B., Gourlet-Fleury, S., Sonké, B., Tavani, R., Zhu, J., Brandl, S., Vayreda, J., Kitahara, F., Valladares Ros, Fernando, Liang, J., Crowther, Thomas Ward, Picard, N., Wiser, S., Zhou, M., Alberti, G., Schulze, Ernst‐Detlef, McGuire, A.D., Bozzato, F., Pretzsch, H., De-Miguel, Sergio, Paquette, A., Hérault, Bruno, Scherer-Lorenzen, Michael, Barrett, C.B., Glick, H.B., Hengeveld, G.M., Nabuurs, G.J., Pfautsch, S., Viana, H., Vibrans, A.C., Ammer, C., Schall, P., Verbyla, D., Tchebakova, N., Fischer, Markus, Watson, J.V., Chen, H.Y.H., Lei, X., Schelhaas, M.J., Lu, H., Gianelle, D., Parfenova, E.I., Salas, C., Lee, E., Lee, B., Kim, H.S., Bruelheide, H., Coomes, David A., Piotto, D., Sunderland, T., Schmid, B., Gourlet-Fleury, S., Sonké, B., Tavani, R., Zhu, J., Brandl, S., Vayreda, J., Kitahara, F., and Valladares Ros, Fernando
Abstract: The biodiversity-productivity relationship (BPR) is foundational to our understanding of the global extinction crisis and its impacts on ecosystem functioning. Understanding BPR is critical for the accurate valuation and effective conservation of biodiversity. Using ground-sourced data from 777,126 permanent plots, spanning 44 countries and most terrestrial biomes, we reveal a globally consistent positive concave-down BPR, showing that continued biodiversity loss would result in an accelerating decline in forest productivity worldwide. The value of biodiversity in maintaining commercial forest productivity alone - US$166 billion to 490 billion per year according to our estimation - is more than twice what it would cost to implement effective global conservation. This highlights the need for a worldwide reassessment of biodiversity values, forest management strategies, and conservation priorities.
Published: 2016

36. Treatment variation along the board of furfurylated sapwood and heartwood

Author: Esteves, B., Viana, H., Ferreira, J., Ribeiro Nunes, L. M., Domingos, I., and Lina Nunes
Subjects: Watersoaking, Dimensional stability, Furfurylation, Board variation
Abstract: Wood modification by furfurylation depends on impregnation, so only some species can be treated and even so generally only sapwood samples can be used. Another question is that if the impregnation is not even the properties may vary along the board. The objective of this work was to determine the differences in the main wood properties along the treated board. Furfurylation was tested in maritime pine samples (Pinus pinaster Aiton,) with both sapwood and heartwood. Density, dimensional stability and water absorption by the water soaking method were determined. The differences between untreated and treated wood and also between treated heartwood and sapwood are high. Despite the higher density (and furfuryl content) near the sides of the board the differences along sapwood boards are very small. The authors would like to thank the Portuguese Foundation for Science and Technology (FCT) through the project PEst-OE/CED/UI4016/2011, and the Center for Studies in Education, Technologies and Health (CI&DETS). 4 4pp DE/NCE 2014 10-12 de março
Published: 2014

37. Renal Dysfunction in a Patient with a Roux-en-Y Gastric Bypass Surgery

Author: Viana, H, Verdelho, M, Mendes, M, Carvalho, F, and Nolasco, F
Subjects: Gastric Bypass, HCC NEF, Surgery, Kidney, digestive system diseases
Abstract: Submitted by Ana Quininha (ana.quininha@chlc.min-saude.pt) on 2015-04-29T16:18:35Z No. of bitstreams: 1 RPNH 2014 353.pdf: 1830201 bytes, checksum: f82c77d74a5615cdd8590964181c68ed (MD5) Made available in DSpace on 2015-04-29T16:18:35Z (GMT). No. of bitstreams: 1 RPNH 2014 353.pdf: 1830201 bytes, checksum: f82c77d74a5615cdd8590964181c68ed (MD5) Previous issue date: 2014
Published: 2014

38. Acute Kidney Injury in an HIV and HCV Patient

Author: Viana, H, Mesquita, I, Calado, J, Nolasco, F, and Carvalho, F
Subjects: HCV, virus diseases, HIV, HCC NEF, Kidney
Abstract: Submitted by Ana Quininha (ana.quininha@chlc.min-saude.pt) on 2015-04-29T09:55:44Z No. of bitstreams: 1 RPNH 2014 168.pdf: 330492 bytes, checksum: a8e3272656187900d032746b1e6c1c79 (MD5) Made available in DSpace on 2015-04-29T09:55:44Z (GMT). No. of bitstreams: 1 RPNH 2014 168.pdf: 330492 bytes, checksum: a8e3272656187900d032746b1e6c1c79 (MD5) Previous issue date: 2014
Published: 2014

39. Acute Allograft Kidney Dysfunction 18 Years After Transplantation

Author: Viana, H, Mesquita, I, Aires, I, Carvalho, F, and Nolasco, F
Subjects: stomatognathic diseases, Transplantation, Biopsy, HCC NEF, Renal Failure, Allografts, Kidney
Abstract: Submitted by Ana Quininha (ana.quininha@chlc.min-saude.pt) on 2015-04-29T16:10:29Z No. of bitstreams: 1 RPNH 2014 84.pdf: 2726889 bytes, checksum: 92751fc2b3125c82d5ff0ee097e441d3 (MD5) Made available in DSpace on 2015-04-29T16:10:29Z (GMT). No. of bitstreams: 1 RPNH 2014 84.pdf: 2726889 bytes, checksum: 92751fc2b3125c82d5ff0ee097e441d3 (MD5) Previous issue date: 2014
Published: 2014

40. Variação transversal da composição química de árvores de Eucalyptus globulus com 15 anos de idade

Author: Esteves, B., Domingos, I., Cruz-Lopes, L., Ferreira, J., Viana, H., and Pereira, H.
Subjects: Eucalyptus globulus, composição química, variação transversal
Abstract: Madeira de eucalipto (Eucalyptus globulus Labill.) com 15 anos de idade, da região de Águeda, foi utilizada nos ensaios. A composição química, nomeadamente extrativos em diclorometano (DCM), etanol, água e totais e lenhina insolúvel e solúvel foi determinada para a fração de 40-60 mesh. O extrato em DCM variou entre 0,24% e 0,38%, representando aproximadamente 5% dos extrativos totais. O teor de extrativos em DCM manteve-se praticamente constante no cerne, com uma ligeira diminuição a partir da medula (0,38%) até à fronteira com o borne (0,34%), e decrescendo no borne para 0,24%. Os extrativos em etanol representam mais de 50% do total e aumentam da medula para a fronteira do borne de 2,56% para 5,20%, diminuído depois no borne para 0,99%. Em relação aos extrativos em água, estes representam cerca de 45% do total e diminuem da medula para a fronteira do borne, de 3,39% para 2,18% embora sem grandes alterações nos pontos mais próximos da medula. Devido ao alto teor de extrativos solúveis em etanol os extrativos totais têm uma variação semelhante, aumentando da medula para a fronteira do borne. A percentagem de lenhina Klason aumentou da medula (19,8%) para a fronteira do borne (22,2%), aumentando ligeiramente no borne (23,0%). O teor de lenhina solúvel foi aproximadamente o mesmo para todas as amostras (aprox. 2%) info:eu-repo/semantics/publishedVersion
Published: 2013

41. A Clinical Case to Solve

Author: Viana, H, Teixeira e Costa, F, Santos, T, and Carvalho, F
Subjects: Nephritis, Biopsy, Hypertension, Diagnosis, HCC NEF, Therapeutics
Abstract: Submitted by Ana Quininha (ana.quininha@chlc.min-saude.pt) on 2015-04-29T16:33:22Z No. of bitstreams: 1 RPNH 2013 309.pdf: 371116 bytes, checksum: f1726fd9aa6318de3426a29ce8b0893d (MD5) Made available in DSpace on 2015-04-29T16:33:22Z (GMT). No. of bitstreams: 1 RPNH 2013 309.pdf: 371116 bytes, checksum: f1726fd9aa6318de3426a29ce8b0893d (MD5) Previous issue date: 2013
Published: 2013

42. C4d Detection in Renal Allograft Biopsies: Immunohistochemistry vs. Immunofluorescence

Author: Santos, A, Viana, H, Galvão, MJ, Carvalho, F, and Nolasco, F
Subjects: Imunofluorescência, Estudos Retrospectivos, Antibody-mediated rejection, Immunofluorescence, Sensibilidade e Especificidade, kidney allograft, Immunohistochemistry, C4d, Imunohistoquímica
Abstract: Introduction. Peritubular capillary complement 4d staining is one of the criteria for the diagnosis of antibody-mediated rejection, and research into this is essential to kidney allograft evaluation. The immunofluorescence technique applied to frozen sections is the present gold-standard method for complement 4d staining and is used routinely in our laboratory. The immunohistochemistry technique applied to paraffin-embedded tissue may be used when no frozen tissue is available. Material and Methods. The aim of this study is to evaluate the sensitivity and specificity of immunohistochemistry compared with immunofluorescence. We describe the advantages and disadvantages of the immunohistochemistry vs. the immunofluorescence technique. For this purpose complement 4d staining was performed retrospectively by the two methods in indication biopsies (n=143) and graded using the Banff 07 classification. Results. There was total classification agreement between methods in 87.4% (125/143) of cases. However, immunohistochemistry staining caused more difficulties in interpretation, due to nonspecific staining in tubular cells and surrounding interstitium. All cases negative by immunofluorescence were also negative by immunohistochemistry. The biopsies were classified as positive in 44.7% (64/143) of cases performed by immunofluorescence vs. 36.4% (52/143) performed by immunohistochemistry. Fewer biopsies were classified as positive diffuse in the immunohistochemistry group(25.1% vs. 31.4%) and more as positive focal (13.2% vs. 11.1%). More cases were classified as negative by immunohistochemistry (63.6% vs. 55.2%). Study by ROC curve showed immunohistochemistry has a specificity of 100% and a sensitivity of 81.2% in relation to immunofluorescence (AUC: 0.906; 95% confidence interval: 0.846-0.949; p=0.0001). Conclusions. The immunohistochemistry method presents an excellent specificity but lower sensitivity to C4d detection in allograft dysfunction. The evaluation is more difficult, requiring a more experienced observer than the immunofluorescence method. Based on these results, we conclude that the immunohistochemistry technique can safely be used when immunofluorescence is not available.
Published: 2012

43. The 2009 Pandemic Influenza A (H1N1) Infection: Renal Histopathology Findings in Two Infected Patients

Author: Fernandes, V, Ferreira, AC, Viana, H, Carvalho, F, Vila Lobos, A, and Nolasco, F
Subjects: Lesão Renal Aguda, Vírus da Gripe A, Subtipo H1N1, urogenital system, Necrose Tubular Aguda
Abstract: Background: Acute kidney injury in the pandemic swine origin influenza A virus (H1N1) infection has been reported as coursing with severe illness, although renal pathogenic mechanisms and histologic features are still being characterised. Case Report: We present two patients admitted with H1N1 pneumonia, sepsis, acute respiratory distress syndrome and need for invasive mechanical ventilation who developed acute kidney injury and became dialysis-dependent. In both cases a kidney biopsy was performed to establish a definitive diagnosis. Severe acute tubular necrosis was identified, with no further abnormalities. Conclusion: This report seems to confirm that the acute kidney injury in H1N1 infection is focused on the tubular cells. Our cases corroborate the renal histopathologic findings of other studies, highlighting the central role of the tubular cell. We bring new evidence of the histopathology of AKI in H1N1 infection since our data were collected in living patients and not via post-mortem studies.
Published: 2011

44. Dedicated Biomass Plants for Combined Heat & Power (CHP). The Portuguese National Strategy

Author: Viana, H., Lopes, D., and Aranha, J.
Subjects: Biomass
Abstract: The present work analyses the suitability of existing and planned wood-fired power plant in Portugal according to the forest biomass resource available for use as energy. Following the European Union strategy in climate and energy, which aims the decrease of greenhouse gas emissions and increasing the share of renewable energies (wind, solar, biomass, etc) consumption, Portugal established, in a first commitment, that the production of electrical energy from renewable sources should reach 45 % of the total supply by 2010. Further to the EU’s "20-2020" initiative, which set the objectives for 2020, the goal was increased to 60%. In order to fulfil this target, part of this energy will be obtained from biomass forest resources. Hence, in addition to the two existing electric power plants, with 22 MW of power capacity, 13 new power plants with 86.4 MW, are in construction. Despite the main goal is the electricity generation, the government incentive the construction of combined heating and power plants. Considering that wood-fuel demand will increase significantly across the different regions, it will be necessary to apply rational resource exploitation actions associated with regional and local needs. For example, there may be significant competition in some areas due to the presence of pulp mills or other biomass consuming industries. In these cases special solutions and compromises will be needed, or it may not be feasible to construct a power plant in such a location. This article evaluates if the biomass availability is sufficient to fulfil the future demands, considering two scenarios (fully condensing plants and cogeneration plants). The results show that if only electricity is generated some regions will need to find alternative fuel sources to fulfil the demand. However, if cogeneration is implemented the exiting wood fuel resource will be sufficient to fulfil the demand., Proceedings of the 19th European Biomass Conference and Exhibition, 6-10 June 2011, Berlin, Germany, pp. 228-234
Published: 2011
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45. Transplantation in Highly Sensitised Patients Treated with Intravenous Immunoglobulin and Rituximab

Author: Ferreira, AC, Brum, S, Fernandes, V, Buinho, F, Viana, H, Alcântara, P, Ferreira, A, Candeias, N, Sousa, J, Lima, A, Carvalho, F, Trindade, H, and Nolasco, F
Subjects: Imunoglobulinas Intravenosas, Citometria de Fluxo, surgical procedures, operative, Estudos Retrospectivos, Transplantação Renal
Abstract: Renal transplant in highly sensitised patients is associated with increased morbidity. The aim of this retrospective study was to evaluate the clinical evolution of 30 highly sensitised deceased donor kidney transplants and the influence of different timing of B cell directed treatment and its importance in the outcome of these patients. All recipients had negative complement dependent lymphocytotoxicity cytotoxic T cell crossmatch and no identified anti human leucocyte antigen class I donor specific antibodies. T cell flow crossmatch was performed within 24h of transplantation with serum obtained pretransplant (historic, recent or baseline). Posttransplant flow crossmatch were performed prospectively starting on the 3rd posttransplantation day. The immunosuppressive regime included thymoglobulin, tacrolimus, mycofenolate mofetil and steroids. Positive flow crossmatch occurred in 20/29 patients by the 3rd posttransplantation day, and in 17/27 patients after the 3rd posttransplantation day. All patients were started on intravenous immunoglobulin before transplantation: in nine patients (group A) at 400mg/kg/day for five days; in the remaining 21 patients (group B), as a continued infusion of 2g/kg during 48h. In group A, Rituximab was added only in the presence of antibody mediated rejection; in group B, introduced on the 3rd posttransplantation day whenever a positive flow crossmatch (with serum obtained pre or posttransplant) was reported. Antibody mediated rejection was observed in 44.4% of patients in group A, and 19% of those in group B. Mean follow-up was 12.2±5.5 months. Overall allograft survival was 76.6%, 81% in group B, and 66.6% in group A. At last follow up, mean serum creatinine was 1.3±0.6 mg/dl. Renal transplantation with pretransplant positive flow crossmatch is highly associated with antibody mediated rejection, despite introduction of intravenous immunoglobulin pretransplantation. However high dose intravenous immunoglobulin for 48h plus Rituximab by the 3rd posttransplantation day reduce the incidence of antibody mediated rejection by more than 50% and allowed for allograft survival of 81% at one year, with an excellent renal function.
Published: 2010

46. Hepatectomía derecha tras extirpación de tumor de la ampolla de Vater

Author: DÍAZ DE LIAÑO A, ÁLVARO, YÁRNOZ I, CONCEPCIÓN, VIANA H, SHERBOURNE, ARTIEDA S, CRISTINA, ARTAJONA R, ALICIA, GONZÁLEZ A, GREGORIO, FERNÁNDEZ R, LORANS, and ORTIZ H, HÉCTOR
Subjects: Ampulla of Vater, hepatectomy, carcinoma, Hepatectomía, cáncer ampolla Vater, duodenopancreatectomía
Abstract: El tratamiento quirúrgico del carcinoma de ampolla de Vater presenta mejores resultados oncológicos que los del resto de los tumores periampulares. En casos seleccionados, la resección hepática por metástasis de carcinoma de ampolla de Vater extirpado previamente, puede proporcionar supervivencias prolongadas y con buena calidad de vida. Presentamos un paciente de 67 años tratado con duodenopancreatectomía por cáncer de la ampolla de Vater y posteriormente con hepatectomía derecha por metástasis. A los 42 y 21 meses de la primera y segunda intervención respectivamente, permanece asintomático y sin evidencia de enfermedad. Occasionally hepatectomy for metastases of ampulla of Vater carcinoma can result in a better survival and quality of life of patients. We report a 67 years old male subjected to a duodenopancreatectomy for a carcinoma of the ampulla of Vater that required afterwards a right hepatectomy for metastases. Twenty one months after the second operation and 42 months after the first operation, that patient is asymptomatic and without evidences of relapse.
Published: 2009

47. Hepatectomía derecha tras extirpación de tumor de la ampolla de Vater

Author: Héctor Ortiz H, Álvaro Díaz De Liaño A, Gregorio González A, Cristina Artieda S, Alicia Artajona R, Sherbourne Viana H, Concepción Yárnoz I, and Lorans Fernández R
Subjects: Gynecology, medicine.medical_specialty, business.industry, medicine, Surgery, Hepatectomía, business, cáncer ampolla Vater, duodenopancreatectomía
Abstract: El tratamiento quirúrgico del carcinoma de ampolla de Vater presenta mejores resultados oncológicos que los del resto de los tumores periampulares. En casos seleccionados, la resección hepática por metástasis de carcinoma de ampolla de Vater extirpado previamente, puede proporcionar supervivencias prolongadas y con buena calidad de vida. Presentamos un paciente de 67 años tratado con duodenopancreatectomía por cáncer de la ampolla de Vater y posteriormente con hepatectomía derecha por metástasis. A los 42 y 21 meses de la primera y segunda intervención respectivamente, permanece asintomático y sin evidencia de enfermedad.
Published: 2009

48. A Comparative Study of Cardiovascular Tolerability with Slow Extended Dialysis Versus Continuous Haemodiafiltration in the Critical Patient

Author: Birne, R, Branco, P, Marcelino, P, Marum, S, Fernandes, AP, Viana, H, Adragão, T, Ferreira, A, and Mourão, L
Subjects: HCC NEF, Renal Failure, Hemodiafiltration, HCC UCI, Dialysis, Cohort Study
Abstract: Background: In the haemodynamically unstable patient the method of treatment of acute renal failure is still largely controversial. The purpose of our study was to compare slow extended dialysis with continuous haemodiafiltration in the critical patient with indication for renal replacement therapy and haemodynamic instability. Patients and Methods: This is a cohort study comparing in 63 ventilated critical patients a 12 month period when only continuous haemodiafiltration was used (n=25) with an equal period of slow extended dialysis (n=38). Our primary objective was to evaluate the impact of the dialytic procedure on cardiovascular stability in those patients. As secondary aims we considered system coagulation/thrombosis and predictors of mortality. In the two groups we analysed the first session performed, the second session performed and the average of all the sessions performed in each patient. Results: In these patients, mortality in the intensive care unit was high (68% in the continuous haemodiafiltration group and 63% in the slow extended dialysis group). We did not find any association between the dialytic technique used and death; only the APACHE score was a predictor of death. Slow extended dialysis was a predictor of haemodynamic stability, a negative predictor of sessions that had to be interrupted for haemodynamic instability, and a predictor of achieving the volume removal initially sought. Slow extended dialysis was also associated with less coagulation of the system. Conclusions: Our data suggested that slow extended dialysis use was not inferior to continuous haemodiafiltration use in terms of cardiovascular tolerability.
Published: 2009

49. Compostagem de resíduos de curtumes com resíduos florestais

Author: Pereira, J., Viana, H., Marques, F., Teixeira, D., Perdigão, A., Pinto, A., and Rodrigues, P.
Subjects: Resíduos de curtumes, Compostagem, Resíduos florestais
Abstract: O presente estudo teve como objectivo avaliar a viabilidade da obtenção de resíduos compostados a partir de resíduos produzidos pela indústria de curtumes e de resíduos provenientes da indústria de transformação florestal, com vista à sua aplicação em povoamentos florestais. Para o efeito foram recolhidos dois tipos resíduos vulgarmente produzidos numa empresa de curtumes, nomeadamente raspa da tripa e aparas em bruto. As aparas em bruto foram sujeitas a um pré-tratamento através da lavagem com água. A raspa da tripa e as aparas em bruto com e sem pré-tratamento foram misturadas com resíduos florestais (serrim e casca de pinheiro bravo) e sujeitas a compostagem durante 135 dias. Os materiais utilizados na compostagem e os resíduos compostados obtidos foram analisados em termos físicos, químicos e microbiológicos, de acordo com o exposto no Decreto-Lei n.º 118/2006. Concluímos que os resíduos compostados com raspa da tripa e aparas em bruto, com e sem pré-tratamento, apresentaram teores de metais pesados bastante inferiores aos valores limite estipulados por Lei. Observou-se ainda que o pré- tratamento das aparas em bruto conduziu à redução da presença de sais em cerca de 50% nos resíduos compostados obtidos. Os resultados obtidos permitiram comprovar que estes resíduos compostados podem ser aplicados aos solos. Este facto é um factor importante para as indústrias de curtumes que podem desta forma dar uma utilização aos resíduos gerados pela sua actividade.
Published: 2009

50. Leflunomide and Polyomavirus-Associated Nephropathy in Renal Transplant

Author: Ferreira, AC, Ferreira, A, Possante, M, Sousa, J, Viana, H, Carvalho, H, and Nolasco, F
Subjects: Transplantação de Rim, Imunossupressão
Abstract: Polyomavirus nephropathy is a major complication in renal transplantation, associated with renal allograft loss in 14 to 80% of cases. There is no established treatment, although improvement has been reported with a variety of approaches. The authors report two cases of polyomavirus infection in renal allograft recipients. In the first case, a stable patient presented with deterioration of renal function, worsening hypertension and weight gain following removal of ureteral stent placed routinely at the time of surgery. Ultrasound examination and radiology studies revealed hydronephrosis due to ureteral stenosis. A new ureteral stent was placed, but renal function did not improve. Urinary cytology revealed the presence of decoy cells and polyomavirus was detected in blood and urine by qualitative polymerase chain reaction. Renal biopsy findings were consistent with polyomavirus -associated nephropathy. In the second case, leucopaenia was detected in an asymptomatic patient 6 months after transplantation. Mycophenolate mophetil dosage was reduced but renal allograft function deteriorated, and a kidney biopsy revealed polyomavirus -associated nephropathy, also with SV40 positive cells. In both patients immunosuppression with tacrolimus was reduced, mycophenolate mophetil stopped and intravenous immune globulin plus ciprofloxacin started. As renal function continued to deteriorate, therapy with leflunomide (40 mg/day) was associated and maintained during 5 and 3 months respectively. In the first patient, renal function stabilised within one month of starting leflunomide and polymerase chain reaction was negative for polyomavirus after 5 months. A repeated allograft biopsy 6 months later showed no evidence of polyomavirus nephropathy. In the second patient, polyomavirus was undetectable in blood and urine by polymerase chain reaction after 3 months of leflunomide treatment, with no evidence of polyomavirus infection in a repeated biopsy 6 months after beginning treatment.
Published: 2009

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