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22 results on '"Björk, R. G."'

1. Environmental drivers of increased ecosystem respiration in a warming tundra

Author

Maes, S. L., Dietrich, J., Midolo, G., Schwieger, S., Kummu, M., Vandvik, V., Aerts, R., Althuizen, I. H. J., Biasi, C., Björk, R. G., Böhner, H., Carbognani, M., Chiari, G., Christiansen, C. T., Clemmensen, K. E., Cooper, E. J., Cornelissen, J. H. C., Elberling, B., Faubert, P., Fetcher, N., Forte, T. G. W., Gaudard, J., Gavazov, K., Guan, Z., Guðmundsson, J., Gya, R., Hallin, S., Hansen, B. B., Haugum, S. V., He, J.-S., Hicks Pries, C., Hovenden, M. J., Jalava, M., Jónsdóttir, I. S., Juhanson, J., Jung, J. Y., Kaarlejärvi, E., Kwon, M. J., Lamprecht, R. E., Le Moullec, M., Lee, H., Marushchak, M. E., Michelsen, A., Munir, T. M., Myrsky, E. M., Nielsen, C. S., Nyberg, M., Olofsson, J., Óskarsson, H., Parker, T. C., Pedersen, E. P., Petit Bon, M., Petraglia, A., Raundrup, K., Ravn, N. M. R., Rinnan, R., Rodenhizer, H., Ryde, I., Schmidt, N. M., Schuur, E. A. G., Sjögersten, S., Stark, S., Strack, M., Tang, J., Tolvanen, A., Töpper, J. P., Väisänen, M. K., van Logtestijn, R. S. P., Voigt, C., Walz, J., Weedon, J. T., Yang, Y., Ylänne, H., Björkman, M. P., Sarneel, J. M., and Dorrepaal, E.

Published
2024
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2. Global plant trait relationships extend to the climatic extremes of the tundra biome

Author

Thomas, H. J. D., Bjorkman, A. D., Myers-Smith, I. H., Elmendorf, S. C., Kattge, J., Diaz, S., Vellend, M., Blok, D., Cornelissen, J. H. C., Forbes, B. C., Henry, G. H. R., Hollister, R. D., Normand, S., Prevéy, J. S., Rixen, C., Schaepman-Strub, G., Wilmking, M., Wipf, S., Cornwell, W. K., Beck, P. S. A., Georges, D., Goetz, S. J., Guay, K. C., Rüger, N., Soudzilovskaia, N. A., Spasojevic, M. J., Alatalo, J. M., Alexander, H. D., Anadon-Rosell, A., Angers-Blondin, S., te Beest, M., Berner, L. T., Björk, R. G., Buchwal, A., Buras, A., Carbognani, M., Christie, K. S., Collier, L. S., Cooper, E. J., Elberling, B., Eskelinen, A., Frei, E. R., Grau, O., Grogan, P., Hallinger, M., Heijmans, M. M. P. D., Hermanutz, L., Hudson, J. M. G., Johnstone, J. F., Hülber, K., Iturrate-Garcia, M., Iversen, C. M., Jaroszynska, F., Kaarlejarvi, E., Kulonen, A., Lamarque, L. J., Lantz, T. C., Lévesque, E., Little, C. J., Michelsen, A., Milbau, A., Nabe-Nielsen, J., Nielsen, S. S., Ninot, J. M., Oberbauer, S. F., Olofsson, J., Onipchenko, V. G., Petraglia, A., Rumpf, S. B., Shetti, R., Speed, J. D. M., Suding, K. N., Tape, K. D., Tomaselli, M., Trant, A. J., Treier, U. A., Tremblay, M., Venn, S. E., Vowles, T., Weijers, S., Wookey, P. A., Zamin, T. J., Bahn, M., Blonder, B., van Bodegom, P. M., Bond-Lamberty, B., Campetella, G., Cerabolini, B. E. L., Chapin, III, F. S., Craine, J. M., Dainese, M., Green, W. A., Jansen, S., Kleyer, M., Manning, P., Niinemets, Ü., Onoda, Y., Ozinga, W. A., Peñuelas, J., Poschlod, P., Reich, P. B., Sandel, B., Schamp, B. S., Sheremetiev, S. N., and de Vries, F. T.

Published
2020
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3. The tundra phenology database:more than two decades of tundra phenology responses to climate change

Author

Prevéy, J. S. (Janet S.), Elmendorf, S. C. (Sarah Claire), Bjorkman, A. (Anne), Alatalo, J. M. (Juha M.), Ashton, I. (Isabel), Assmann, J. J. (Jakob J.), Björk, R. G. (Robert G.), Björkman, M. P. (Mats P.), Cannone, N. (Nicoletta), Carbognani, M. (Michele), Chisholm, C. (Chelsea), Clark, K. (Karin), Collins, C. G. (Courtney G.), Cooper, E. J. (Elisabeth J.), Elberling, B. (Bo), Frei, E. R. (Esther R.), Henry, G. R. (Gregory R.H.), Hollister, R. D. (Robert D.), Høye, T. T. (Toke Thomas), Jónsdóttir, I. S. (Ingibjörg Svala), Kerby, J. T. (Jeffrey T.), Klanderud, K. (Kari), Kopp, C. (Christopher), Levesque, E. (Esther), Mauritz, M. (Marguerite), Molau, U. (Ulf), Myers-Smith, I. H. (Isla H.), Natali, S. M. (Susan M.), Oberbauer, S. F. (Steven F.), Panchen, Z. (Zoe), Petraglia, A. (Alessandro), Post, E. (Eric), Rixen, C. (Christian), Rodenhizer, H. (Heidi), Rumpf, S. B. (Sabine B.), Schmidt, N. M. (Niels Martin), Schuur, T. (Ted), Semenchuk, P. (Philipp), Smith, J. G. (Jane Griffin), Suding, K. (Katharine), Totland, Ø. (Ørjan), Troxler, T. (Tiffany), Wahren, H. (Henrik), Welker, J. M. (Jeffrey M.), Wipf, S. (Sonja), Yang, Y. (Yue), Prevéy, J. S. (Janet S.), Elmendorf, S. C. (Sarah Claire), Bjorkman, A. (Anne), Alatalo, J. M. (Juha M.), Ashton, I. (Isabel), Assmann, J. J. (Jakob J.), Björk, R. G. (Robert G.), Björkman, M. P. (Mats P.), Cannone, N. (Nicoletta), Carbognani, M. (Michele), Chisholm, C. (Chelsea), Clark, K. (Karin), Collins, C. G. (Courtney G.), Cooper, E. J. (Elisabeth J.), Elberling, B. (Bo), Frei, E. R. (Esther R.), Henry, G. R. (Gregory R.H.), Hollister, R. D. (Robert D.), Høye, T. T. (Toke Thomas), Jónsdóttir, I. S. (Ingibjörg Svala), Kerby, J. T. (Jeffrey T.), Klanderud, K. (Kari), Kopp, C. (Christopher), Levesque, E. (Esther), Mauritz, M. (Marguerite), Molau, U. (Ulf), Myers-Smith, I. H. (Isla H.), Natali, S. M. (Susan M.), Oberbauer, S. F. (Steven F.), Panchen, Z. (Zoe), Petraglia, A. (Alessandro), Post, E. (Eric), Rixen, C. (Christian), Rodenhizer, H. (Heidi), Rumpf, S. B. (Sabine B.), Schmidt, N. M. (Niels Martin), Schuur, T. (Ted), Semenchuk, P. (Philipp), Smith, J. G. (Jane Griffin), Suding, K. (Katharine), Totland, Ø. (Ørjan), Troxler, T. (Tiffany), Wahren, H. (Henrik), Welker, J. M. (Jeffrey M.), Wipf, S. (Sonja), and Yang, Y. (Yue)

Abstract

Observations of changes in phenology have provided some of the strongest signals of the effects of climate change on terrestrial ecosystems. The International Tundra Experiment (ITEX), initiated in the early 1990s, established a common protocol to measure plant phenology in tundra study areas across the globe. Today, this valuable collection of phenology measurements depicts the responses of plants at the colder extremes of our planet to experimental and ambient changes in temperature over the past decades. The database contains 150 434 phenology observations of 278 plant species taken at 28 study areas for periods of 1–26 years. Here we describe the full data set to increase the visibility and use of these data in global analyses and to invite phenology data contributions from underrepresented tundra locations. Portions of this tundra phenology database have been used in three recent syntheses, some data sets are expanded, others are from entirely new study areas, and the entirety of these data are now available at the Polar Data Catalogue (https://doi.org/10.21963/13215).

Published
2022

4. Growth rings show limited evidence for ungulates’ potential to suppress shrubs across the Arctic

Author

Vuorinen, K. E. (Katariina E. M.), Austrheim, G. (Gunnar), Tremblay, J.-P. (Jean-Pierre), Myers-Smith, I. H. (Isla H.), Hortman, H. I. (Hans I.), Frank, P. (Peter), Barrio, I. C. (Isabel C.), Dalerum, F. (Fredrik), Björkman, M. P. (Mats P.), Björk, R. G. (Robert G.), Ehrich, D. (Dorothee), Sokolov, A. (Aleksandr), Sokolova, N. (Natalya), Ropars, P. (Pascale), Boudreau, S. (Stéphane), Normand, S. (Signe), Prendin, A. L. (Angela L.), Schmidt, N. M. (Niels Martin), Pacheco-Solana, A. (Arturo), Post, E. (Eric), John, C. (Christian), Kerby, J. (Jeff), Sullivan, P. F. (Patrick F.), Le Moullec, M. (Mathilde), Hansen, B. B. (Brage B.), van der Wal, R. (Rene), Pedersen, Å. Ø. (Åshild Ø.), Sandal, L. (Lisa), Gough, L. (Laura), Young, A. (Amanda), Li, B. (Bingxi), Magnússon, R. Í. (Rúna Í.), Sass-Klaassen, U. (Ute), Buchwal, A. (Agata), Welker, J. (Jeffrey), Grogan, P. (Paul), Andruko, R. (Rhett), Morrissette-Boileau, C. (Clara), Volkovitskiy, A. (Alexander), Terekhina, A. (Alexandra), Speed, J. D. (James D. M.), Vuorinen, K. E. (Katariina E. M.), Austrheim, G. (Gunnar), Tremblay, J.-P. (Jean-Pierre), Myers-Smith, I. H. (Isla H.), Hortman, H. I. (Hans I.), Frank, P. (Peter), Barrio, I. C. (Isabel C.), Dalerum, F. (Fredrik), Björkman, M. P. (Mats P.), Björk, R. G. (Robert G.), Ehrich, D. (Dorothee), Sokolov, A. (Aleksandr), Sokolova, N. (Natalya), Ropars, P. (Pascale), Boudreau, S. (Stéphane), Normand, S. (Signe), Prendin, A. L. (Angela L.), Schmidt, N. M. (Niels Martin), Pacheco-Solana, A. (Arturo), Post, E. (Eric), John, C. (Christian), Kerby, J. (Jeff), Sullivan, P. F. (Patrick F.), Le Moullec, M. (Mathilde), Hansen, B. B. (Brage B.), van der Wal, R. (Rene), Pedersen, Å. Ø. (Åshild Ø.), Sandal, L. (Lisa), Gough, L. (Laura), Young, A. (Amanda), Li, B. (Bingxi), Magnússon, R. Í. (Rúna Í.), Sass-Klaassen, U. (Ute), Buchwal, A. (Agata), Welker, J. (Jeffrey), Grogan, P. (Paul), Andruko, R. (Rhett), Morrissette-Boileau, C. (Clara), Volkovitskiy, A. (Alexander), Terekhina, A. (Alexandra), and Speed, J. D. (James D. M.)

Abstract

Global warming has pronounced effects on tundra vegetation, and rising mean temperatures increase plant growth potential across the Arctic biome. Herbivores may counteract the warming impacts by reducing plant growth, but the strength of this effect may depend on prevailing regional climatic conditions. To study how ungulates interact with temperature to influence growth of tundra shrubs across the Arctic tundra biome, we assembled dendroecological data from 20 sites, comprising 1153 individual shrubs and 223 63 annual growth rings. Evidence for ungulates suppressing shrub radial growth was only observed at intermediate summer temperatures (6.5 °C–9 °C), and even at these temperatures the effect was not strong. Multiple factors, including forage preferences and landscape use by the ungulates, and favourable climatic conditions enabling effective compensatory growth of shrubs, may weaken the effects of ungulates on shrubs, possibly explaining the weakness of observed ungulate effects. Earlier local studies have shown that ungulates may counteract the impacts of warming on tundra shrub growth, but we demonstrate that ungulates’ potential to suppress shrub radial growth is not always evident, and may be limited to certain climatic conditions.

Published
2022

5. The tundra phenology database: More than two decades of tundra phenology responses to climate change

Author

Prevéy, J. S., Elmendorf, S. C., Bjorkman, A., Alatalo, J. M., Ashton, I., Assmann, J. J., Björk, R. G., Björkman, M. P., Cannone, N., Carbognani, M., Chisholm, C., Clark, K., Collins, C. G., Cooper, E. J., Elberling, B., Frei, E. R., Henry, G. R. H., Hollister, R. D., Høye, T. T., Jónsdóttir, I. S., Kerby, J. T., Klanderud, K., Kopp, C., Levesque, E., Mauritz, M., Molau, U., Myers-Smith, I. H., Natali, S. M., Oberbauer, S. F., Panchen, Z., Petraglia, A., Post, E., Rixen, C., Rodenhizer, H., Rumpf, S. B., Schmidt, N. M., Schuur, T., Semenchuk, P., Smith, J. G., Suding, K., Totland, Ø, Troxler, T., Wahren, H., Welker, J. M., Wipf, S., Yang, Y., Prevéy, J. S., Elmendorf, S. C., Bjorkman, A., Alatalo, J. M., Ashton, I., Assmann, J. J., Björk, R. G., Björkman, M. P., Cannone, N., Carbognani, M., Chisholm, C., Clark, K., Collins, C. G., Cooper, E. J., Elberling, B., Frei, E. R., Henry, G. R. H., Hollister, R. D., Høye, T. T., Jónsdóttir, I. S., Kerby, J. T., Klanderud, K., Kopp, C., Levesque, E., Mauritz, M., Molau, U., Myers-Smith, I. H., Natali, S. M., Oberbauer, S. F., Panchen, Z., Petraglia, A., Post, E., Rixen, C., Rodenhizer, H., Rumpf, S. B., Schmidt, N. M., Schuur, T., Semenchuk, P., Smith, J. G., Suding, K., Totland, Ø, Troxler, T., Wahren, H., Welker, J. M., Wipf, S., and Yang, Y.

Abstract

Observations of changes in phenology have provided some of the strongest signals of the effects of climate change on terrestrial ecosystems. The International Tundra Experiment (ITEX), initiated in the early 1990s, established a common protocol to measure plant phenology in tundra study areas across the globe. Today, this valuable collec-tion of phenology measurements depicts the responses of plants at the colder extremes of our planet to experimental and ambient changes in temperature over the past decades. The database contains 150 434 phenology observations of 278 plant species taken at 28 study areas for periods of 1–26 years. Here we describe the full data set to increase the visibility and use of these data in global analyses and to invite phenology data contributions from underrepresented tundra locations. Portions of this tundra phenology database have been used in three recent syntheses, some data sets are expanded, others are from entirely new study areas, and the entirety of these data are now available at the Polar Data Catalogue (https://doi.org/10.21963/13215). Résumé Les observations des changements dans la phénologie ont fourni certains des signaux les plus forts des effets du changement climatique sur les écosystèmes terrestres. L’expérience internationale sur la toundra ITEX (International Tundra Experiment), lancée au début des années 1990, a établi un protocole commun pour mesurer la phénologie des plantes dans les zones d’étude de la toundra à travers le monde. Aujourd’hui, cette précieuse collection de mesures phénologiques décrit les réponses des plantes des régions les plus froides de notre planète aux changements expérimentaux et ambiants de température au cours des dernières décennies. La base de données contient 150 434 observations phénologiques de 278 espèces de plantes prises dans 28 zones d’étude sur des périodes allant de 1 à 26 ans. Les auteurs décrivent ici l’ensemble des données afin d’accroître la visibilité et l’utilisat

Published
2022

8. Location of studies and evidence of effects of herbivory on Arctic vegetation: a systematic map

Author

Soininen, E. M. (E. M.), Barrio, I. C. (I. C.), Bjørkås, R. (R.), Björnsdottir, K. (K.), Ehrich, D. (D.), Hopping, K. A. (K. A.), Kaarlejärvi, E. (E.), Kolstad, A. L. (A. L.), Abdulmanova, S. (S.), Björk, R. G. (R. G.), Bueno, C. G. (C. G.), Eischeid, I. (I), Finger-Higgens, R. (R.), Forbey, J. S. (J. S.), Gignac, C. (C.), Gilg, O. (O.), den Herder, M. (M.), Holm, H. S. (H. S.), Hwang, B. C. (B. C.), Jepsen, J. U. (J. U.), Kamenova, S. (S.), Kater, I. (I), Koltz, A. M. (A. M.), Kristensen, J. A. (J. A.), Little, C. J. (C. J.), Macek, P. (P.), Mathisen, K. M. (K. M.), Metcalfe, D. B. (D. B.), Mosbacher, J. B. (J. B.), Mörsdorf, M. (M.), Park, T. (T.), Propster, J. R. (J. R.), Roberts, A. J. (A. J.), Serrano, E. (E.), Spiegel, M. P. (M. P.), Tamayo, M. (M.), Tuomi, M. W. (M. W.), Verma, M. (M.), Vuorinen, K. E. (K. E. M.), Väisänen, M. (M.), Van der Wal, R. (R.), Wilcots, M. E. (M. E.), Yoccoz, N. G. (N. G.), Speed, J. D. (J. D. M.), Soininen, E. M. (E. M.), Barrio, I. C. (I. C.), Bjørkås, R. (R.), Björnsdottir, K. (K.), Ehrich, D. (D.), Hopping, K. A. (K. A.), Kaarlejärvi, E. (E.), Kolstad, A. L. (A. L.), Abdulmanova, S. (S.), Björk, R. G. (R. G.), Bueno, C. G. (C. G.), Eischeid, I. (I), Finger-Higgens, R. (R.), Forbey, J. S. (J. S.), Gignac, C. (C.), Gilg, O. (O.), den Herder, M. (M.), Holm, H. S. (H. S.), Hwang, B. C. (B. C.), Jepsen, J. U. (J. U.), Kamenova, S. (S.), Kater, I. (I), Koltz, A. M. (A. M.), Kristensen, J. A. (J. A.), Little, C. J. (C. J.), Macek, P. (P.), Mathisen, K. M. (K. M.), Metcalfe, D. B. (D. B.), Mosbacher, J. B. (J. B.), Mörsdorf, M. (M.), Park, T. (T.), Propster, J. R. (J. R.), Roberts, A. J. (A. J.), Serrano, E. (E.), Spiegel, M. P. (M. P.), Tamayo, M. (M.), Tuomi, M. W. (M. W.), Verma, M. (M.), Vuorinen, K. E. (K. E. M.), Väisänen, M. (M.), Van der Wal, R. (R.), Wilcots, M. E. (M. E.), Yoccoz, N. G. (N. G.), and Speed, J. D. (J. D. M.)

Abstract

Background: Herbivores modify the structure and function of tundra ecosystems. Understanding their impacts is necessary to assess the responses of these ecosystems to ongoing environmental changes. However, the effects of herbivores on plants and ecosystem structure and function vary across the Arctic. Strong spatial variation in herbivore effects implies that the results of individual studies on herbivory depend on local conditions, i.e., their ecological context. An important first step in assessing whether generalizable conclusions can be produced is to identify the existing studies and assess how well they cover the underlying environmental conditions across the Arctic. This systematic map aims to identify the ecological contexts in which herbivore impacts on vegetation have been studied in the Arctic. Specifically, the primary question of the systematic map was: ”What evidence exists on the effects of herbivores on Arctic vegetation?”. Methods: We used a published systematic map protocol to identify studies addressing the effects of herbivores on Arctic vegetation. We conducted searches for relevant literature in online databases, search engines and specialist websites. Literature was screened to identify eligible studies, defined as reporting primary data on herbivore impacts on Arctic plants and plant communities. We extracted information on variables that describe the ecological context of the studies, from the studies themselves and from geospatial data. We synthesized the findings narratively and created a Shiny App where the coded data are searchable and variables can be visually explored. Review findings We identified 309 relevant articles with 662 studies (representing different ecological contexts or datasets within the same article). These studies addressed vertebrate herbivory seven times more often than invertebrate herbivory. Geographically, the largest cluster of studies was in Northern Fennoscandia. Warmer and wetter parts of the Arctic

Published
2021

9. Global plant trait relationships extend to the climatic extremes of the tundra biome

Author

Spatial Ecology and Global Change, Environmental Sciences, Thomas, H. J. D., Bjorkman, A. D., Myers-Smith, I. H., Elmendorf, S. C., Kattge, J., Diaz, S., Vellend, M., Blok, D., Cornelissen, J. H. C., Forbes, B. C., Henry, G. H. R., Hollister, R. D., Normand, S., Prevéy, J. S., Rixen, C., Schaepman-Strub, G., Wilmking, M., Wipf, S., Cornwell, W. K., Beck, P. S. A., Georges, D., Goetz, S. J., Guay, K. C., Rüger, N., Soudzilovskaia, N. A., Spasojevic, M. J., Alatalo, J. M., Alexander, H. D., Anadon-Rosell, A., Angers-Blondin, S., te Beest, M., Berner, L. T., Björk, R. G., Buchwal, A., Buras, A., Carbognani, M., Christie, K. S., Collier, L. S., Cooper, E. J., Elberling, B., Eskelinen, A., Frei, E. R., Grau, O., Grogan, P., Hallinger, M., Heijmans, M. M. P. D., Hermanutz, L., Hudson, J. M. G., Johnstone, J. F., Hülber, K., Iturrate-Garcia, M., Iversen, C. M., Jaroszynska, F., Kaarlejarvi, E., Kulonen, A., Lamarque, L. J., Lantz, T. C., Lévesque, E., Little, C. J., Michelsen, A., Milbau, A., Nabe-Nielsen, J., Nielsen, S. S., Ninot, J. M., Oberbauer, S. F., Olofsson, J., Onipchenko, V. G., Petraglia, A., Rumpf, S. B., Shetti, R., Speed, J. D. M., Suding, K. N., Tape, K. D., Tomaselli, M., Trant, A. J., Treier, U. A., Tremblay, M., Venn, S. E., Vowles, T., Weijers, S., Wookey, P. A., Zamin, T. J., Bahn, M., Blonder, B., van Bodegom, P. M., Bond-Lamberty, B., Campetella, G., Cerabolini, B. E. L., Chapin, F. S., Craine, J. M., Dainese, M., Green, W. A., Jansen, S., Kleyer, M., Manning, P., Niinemets, Ü., Onoda, Y., Ozinga, W. A., Peñuelas, J., Poschlod, P., Reich, P. B., Sandel, B., Schamp, B. S., Sheremetiev, S. N., de Vries, F. T., Spatial Ecology and Global Change, Environmental Sciences, Thomas, H. J. D., Bjorkman, A. D., Myers-Smith, I. H., Elmendorf, S. C., Kattge, J., Diaz, S., Vellend, M., Blok, D., Cornelissen, J. H. C., Forbes, B. C., Henry, G. H. R., Hollister, R. D., Normand, S., Prevéy, J. S., Rixen, C., Schaepman-Strub, G., Wilmking, M., Wipf, S., Cornwell, W. K., Beck, P. S. A., Georges, D., Goetz, S. J., Guay, K. C., Rüger, N., Soudzilovskaia, N. A., Spasojevic, M. J., Alatalo, J. M., Alexander, H. D., Anadon-Rosell, A., Angers-Blondin, S., te Beest, M., Berner, L. T., Björk, R. G., Buchwal, A., Buras, A., Carbognani, M., Christie, K. S., Collier, L. S., Cooper, E. J., Elberling, B., Eskelinen, A., Frei, E. R., Grau, O., Grogan, P., Hallinger, M., Heijmans, M. M. P. D., Hermanutz, L., Hudson, J. M. G., Johnstone, J. F., Hülber, K., Iturrate-Garcia, M., Iversen, C. M., Jaroszynska, F., Kaarlejarvi, E., Kulonen, A., Lamarque, L. J., Lantz, T. C., Lévesque, E., Little, C. J., Michelsen, A., Milbau, A., Nabe-Nielsen, J., Nielsen, S. S., Ninot, J. M., Oberbauer, S. F., Olofsson, J., Onipchenko, V. G., Petraglia, A., Rumpf, S. B., Shetti, R., Speed, J. D. M., Suding, K. N., Tape, K. D., Tomaselli, M., Trant, A. J., Treier, U. A., Tremblay, M., Venn, S. E., Vowles, T., Weijers, S., Wookey, P. A., Zamin, T. J., Bahn, M., Blonder, B., van Bodegom, P. M., Bond-Lamberty, B., Campetella, G., Cerabolini, B. E. L., Chapin, F. S., Craine, J. M., Dainese, M., Green, W. A., Jansen, S., Kleyer, M., Manning, P., Niinemets, Ü., Onoda, Y., Ozinga, W. A., Peñuelas, J., Poschlod, P., Reich, P. B., Sandel, B., Schamp, B. S., Sheremetiev, S. N., and de Vries, F. T.

Published
2020

10. Traditional plant functional groups explain variation in economic but not size‐related traits across the tundra biome

Author

Thomas, H. J. (H. J. D.), Myers‐Smith, I. H. (I. H.), Bjorkman, A. D. (A. D.), Elmendorf, S. C. (S. C.), Blok, D. (D.), Cornelissen, J. H. (J. H. C.), Forbes, B. C. (B. C.), Hollister, R. D. (R. D.), Normand, S. (S.), Prevéy, J. S. (J. S.), Rixen, C. (C.), Schaepman‐Strub, G. (G.), Wilmking, M. (M.), Wipf, S. (S.), Cornwell, W. K. (W. K.), Kattge, J. (J.), Goetz, S. J. (S. J.), Guay, K. C. (K. C.), Alatalo, J. M. (J. M.), Anadon‐Rosell, A. (A.), Angers‐Blondin, S. (S.), Berner, L. T. (L. T.), Björk, R. G. (R. G.), Buchwal, A. (A.), Buras, A. (A.), Carbognani, M. (M.), Christie, K. (K.), Siegwart Collier, L. (L.), Cooper, E. J. (E. J.), Eskelinen, A. (A.), Frei, E. R. (E. R.), Grau, O. (O.), Grogan, P. (P.), Hallinger, M. (M.), Heijmans, M. M. (M. M. P. D.), Hermanutz, L. (L.), Hudson, J. M. (J. M. G.), Hülber, K. (K.), Iturrate‐Garcia, M. (M.), Iversen, C. M. (C. M.), Jaroszynska, F. (F.), Johnstone, J. F. (J. F.), Kaarlejärvi, E. (E.), Kulonen, A. (A.), Lamarque, L. J. (L. J.), Lévesque, E. (E.), Michelsen, A. (A.), Milbau, A. (A.), Nabe‐Nielsen, J. (J.), Nielsen, S. S. (S. S.), Ninot, J. M. (J. M.), Oberbauer, S. F. (S. F.), Olofsson, J. (J.), Onipchenko, V. G. (V. G.), Petraglia, A. (A.), Rumpf, S. B. (S. B.), Semenchuk, P. R. (P. R.), Soudzilovskaia, N. A. (N. A.), Spasojevic, M. J. (M. J.), Speed, J. D. (J. D. M.), Tape, K. D. (K. D.), te Beest, M. (M.), Tomaselli, M. (M.), Trant, A. (A.), Treier, U. A. (U. A.), Venn, S. (S.), Vowles, T. (T.), Weijers, S. (S.), Zamin, T. (T.), Atkin, O. K. (O. K.), Bahn, M. (M.), Blonder, B. (B.), Campetella, G. (G.), Cerabolini, B. E. (B. E. L.), Chapin III, F. S. (F. S.), Dainese, M. (M.), de Vries, F. T. (F. T.), Díaz, S. (S.), Green, W. (W.), Jackson, R. B. (R. B.), Manning, P. (P.), Niinemets, Ü. (Ü.), Ozinga, W. A. (W. A.), Peñuelas, J. (J.), Reich, P. B. (P. B.), Schamp, B. (B.), Sheremetev, S. (S.), and van Bodegom, P. M. (P. M.)

Subjects
vegetation change, plant traits, ecosystem function, food and beverages, tundra biome, community composition, plant functional types, plant functional groups, cluster analysis
Abstract

Aim: Plant functional groups are widely used in community ecology and earth system modelling to describe trait variation within and across plant communities. However, this approach rests on the assumption that functional groups explain a large proportion of trait variation among species. We test whether four commonly used plant functional groups represent variation in six ecologically important plant traits. Location: Tundra biome. Time period: Data collected between 1964 and 2016. Major taxa studied: 295 tundra vascular plant species. Methods: We compiled a database of six plant traits (plant height, leaf area, specific leaf area, leaf dry matter content, leaf nitrogen, seed mass) for tundra species. We examined the variation in species‐level trait expression explained by four traditional functional groups (evergreen shrubs, deciduous shrubs, graminoids, forbs), and whether variation explained was dependent upon the traits included in analysis. We further compared the explanatory power and species composition of functional groups to alternative classifications generated using post hoc clustering of species‐level traits. Results: Traditional functional groups explained significant differences in trait expression, particularly amongst traits associated with resource economics, which were consistent across sites and at the biome scale. However, functional groups explained 19% of overall trait variation and poorly represented differences in traits associated with plant size. Post hoc classification of species did not correspond well with traditional functional groups, and explained twice as much variation in species‐level trait expression. Main conclusions: Traditional functional groups only coarsely represent variation in well‐measured traits within tundra plant communities, and better explain resource economic traits than size‐related traits. We recommend caution when using functional group approaches to predict tundra vegetation change, or ecosystem functions relating to plant size, such as albedo or carbon storage. We argue that alternative classifications or direct use of specific plant traits could provide new insights for ecological prediction and modelling.

Published
2019

11. Traditional plant functional groups explain variation in economic but not size-related traits across the tundra biome

Author

Thomas, H. J. D., Myers-Smith, I. H., Bjorkman, A. D., Elmendorf, S. C., Blok, D., Cornelissen, J. H. C., Forbes, B. C., Hollister, R. D., Normand, S., Prevéy, J. S., Rixen, C., Schaepman-Strub, G., Wilmking, M., Wipf, S., Cornwell, W. K., Kattge, J., Goetz, S. J., Guay, K. C., Alatalo, J. M., Anadon-Rosell, A., Angers-Blondin, S., Berner, L. T., Björk, R. G., Buchwal, A., Buras, A., Carbognani, M., Christie, K., Siegwart Collier, L., Cooper, E. J., Eskelinen, A., Frei, E. R., Grau, O., Grogan, P., Hallinger, M., Heijmans, M. M. P. D., Hermanutz, L., Hudson, J. M. G., Hülber, K., Iturrate-Garcia, M., Iversen, C. M., Jaroszynska, F., Johnstone, J. F., Kaarlejärvi, E., Kulonen, A., Lamarque, L. J., Lévesque, E., Little, C. J., Michelsen, A., Milbau, A., Nabe-Nielsen, J., Nielsen, S. S., Ninot, J. M., Oberbauer, S. F., Olofsson, J., Onipchenko, V. G., Petraglia, A., Rumpf, S. B., Semenchuk, P. R., Soudzilovskaia, N. A., Spasojevic, M. J., Speed, J. D. M., Tape, K. D., te Beest, M., Tomaselli, M., Trant, A., Treier, U. A., Venn, S., Vowles, T., Weijers, S., Zamin, T., Atkin, O. K., Bahn, M., Blonder, B., Campetella, G., Cerabolini, B. E. L., Chapin III, F. S., Dainese, M., de Vries, F. T., Díaz, S., Green, W., Jackson, R. B., Manning, P., Niinemets, Ü., Ozinga, W. A., Peñuelas, J., Reich, P. B., Schamp, B., Sheremetev, S., van Bodegom, P. M., Spatial Ecology and Global Change, and Environmental Sciences

Subjects
vegetation change, plant traits, ecosystem function, food and beverages, tundra biome, community composition, plant functional types, plant functional groups, cluster analysis
Abstract

Aim Plant functional groups are widely used in community ecology and earth system modelling to describe trait variation within and across plant communities. However, this approach rests on the assumption that functional groups explain a large proportion of trait variation among species. We test whether four commonly used plant functional groups represent variation in six ecologically important plant traits. Location Tundra biome. Time period Data collected between 1964 and 2016. Major taxa studied 295 tundra vascular plant species. Methods We compiled a database of six plant traits (plant height, leaf area, specific leaf area, leaf dry matter content, leaf nitrogen, seed mass) for tundra species. We examined the variation in species-level trait expression explained by four traditional functional groups (evergreen shrubs, deciduous shrubs, graminoids, forbs), and whether variation explained was dependent upon the traits included in analysis. We further compared the explanatory power and species composition of functional groups to alternative classifications generated using post hoc clustering of species-level traits. Results Traditional functional groups explained significant differences in trait expression, particularly amongst traits associated with resource economics, which were consistent across sites and at the biome scale. However, functional groups explained 19% of overall trait variation and poorly represented differences in traits associated with plant size. Post hoc classification of species did not correspond well with traditional functional groups, and explained twice as much variation in species-level trait expression. Main conclusions Traditional functional groups only coarsely represent variation in well-measured traits within tundra plant communities, and better explain resource economic traits than size-related traits. We recommend caution when using functional group approaches to predict tundra vegetation change, or ecosystem functions relating to plant size, such as albedo or carbon storage. We argue that alternative classifications or direct use of specific plant traits could provide new insights for ecological prediction and modelling.

Published
2019

12. Traditional plant functional groups explain variation in economic but not size-related traits across the tundra biome

Author

Spatial Ecology and Global Change, Environmental Sciences, Thomas, H. J. D., Myers-Smith, I. H., Bjorkman, A. D., Elmendorf, S. C., Blok, D., Cornelissen, J. H. C., Forbes, B. C., Hollister, R. D., Normand, S., Prevéy, J. S., Rixen, C., Schaepman-Strub, G., Wilmking, M., Wipf, S., Cornwell, W. K., Kattge, J., Goetz, S. J., Guay, K. C., Alatalo, J. M., Anadon-Rosell, A., Angers-Blondin, S., Berner, L. T., Björk, R. G., Buchwal, A., Buras, A., Carbognani, M., Christie, K., Siegwart Collier, L., Cooper, E. J., Eskelinen, A., Frei, E. R., Grau, O., Grogan, P., Hallinger, M., Heijmans, M. M. P. D., Hermanutz, L., Hudson, J. M. G., Hülber, K., Iturrate-Garcia, M., Iversen, C. M., Jaroszynska, F., Johnstone, J. F., Kaarlejärvi, E., Kulonen, A., Lamarque, L. J., Lévesque, E., Little, C. J., Michelsen, A., Milbau, A., Nabe-Nielsen, J., Nielsen, S. S., Ninot, J. M., Oberbauer, S. F., Olofsson, J., Onipchenko, V. G., Petraglia, A., Rumpf, S. B., Semenchuk, P. R., Soudzilovskaia, N. A., Spasojevic, M. J., Speed, J. D. M., Tape, K. D., te Beest, M., Tomaselli, M., Trant, A., Treier, U. A., Venn, S., Vowles, T., Weijers, S., Zamin, T., Atkin, O. K., Bahn, M., Blonder, B., Campetella, G., Cerabolini, B. E. L., Chapin III, F. S., Dainese, M., de Vries, F. T., Díaz, S., Green, W., Jackson, R. B., Manning, P., Niinemets, Ü., Ozinga, W. A., Peñuelas, J., Reich, P. B., Schamp, B., Sheremetev, S., van Bodegom, P. M., Spatial Ecology and Global Change, Environmental Sciences, Thomas, H. J. D., Myers-Smith, I. H., Bjorkman, A. D., Elmendorf, S. C., Blok, D., Cornelissen, J. H. C., Forbes, B. C., Hollister, R. D., Normand, S., Prevéy, J. S., Rixen, C., Schaepman-Strub, G., Wilmking, M., Wipf, S., Cornwell, W. K., Kattge, J., Goetz, S. J., Guay, K. C., Alatalo, J. M., Anadon-Rosell, A., Angers-Blondin, S., Berner, L. T., Björk, R. G., Buchwal, A., Buras, A., Carbognani, M., Christie, K., Siegwart Collier, L., Cooper, E. J., Eskelinen, A., Frei, E. R., Grau, O., Grogan, P., Hallinger, M., Heijmans, M. M. P. D., Hermanutz, L., Hudson, J. M. G., Hülber, K., Iturrate-Garcia, M., Iversen, C. M., Jaroszynska, F., Johnstone, J. F., Kaarlejärvi, E., Kulonen, A., Lamarque, L. J., Lévesque, E., Little, C. J., Michelsen, A., Milbau, A., Nabe-Nielsen, J., Nielsen, S. S., Ninot, J. M., Oberbauer, S. F., Olofsson, J., Onipchenko, V. G., Petraglia, A., Rumpf, S. B., Semenchuk, P. R., Soudzilovskaia, N. A., Spasojevic, M. J., Speed, J. D. M., Tape, K. D., te Beest, M., Tomaselli, M., Trant, A., Treier, U. A., Venn, S., Vowles, T., Weijers, S., Zamin, T., Atkin, O. K., Bahn, M., Blonder, B., Campetella, G., Cerabolini, B. E. L., Chapin III, F. S., Dainese, M., de Vries, F. T., Díaz, S., Green, W., Jackson, R. B., Manning, P., Niinemets, Ü., Ozinga, W. A., Peñuelas, J., Reich, P. B., Schamp, B., Sheremetev, S., and van Bodegom, P. M.

Published
2019

13. Location of studies and evidence of effects of herbivory on Arctic vegetation: a systematic map.

Author

Soininen, E. M., Barrio, I. C., Bjørkås, R., Björnsdóttir, K., Ehrich, D., Hopping, K. A., Kaarlejärvi, E., Kolstad, A. L., Abdulmanova, S., Björk, R. G., Bueno, C. G., Eischeid, I., Finger-Higgens, R., Forbey, J. S., Gignac, C., Gilg, O., den Herder, M., Holm, H. S., Hwang, B. C., and Jepsen, J. U.

Subjects
VEGETATION mapping, POPULATION density, PLANT anatomy, GEOSPATIAL data, SEARCH engines, ONLINE databases
Abstract

Background: Herbivores modify the structure and function of tundra ecosystems. Understanding their impacts is necessary to assess the responses of these ecosystems to ongoing environmental changes. However, the effects of herbivores on plants and ecosystem structure and function vary across the Arctic. Strong spatial variation in herbivore effects implies that the results of individual studies on herbivory depend on local conditions, i.e., their ecological context. An important first step in assessing whether generalizable conclusions can be produced is to identify the existing studies and assess how well they cover the underlying environmental conditions across the Arctic. This systematic map aims to identify the ecological contexts in which herbivore impacts on vegetation have been studied in the Arctic. Specifically, the primary question of the systematic map was: "What evidence exists on the effects of herbivores on Arctic vegetation?". Methods: We used a published systematic map protocol to identify studies addressing the effects of herbivores on Arctic vegetation. We conducted searches for relevant literature in online databases, search engines and specialist websites. Literature was screened to identify eligible studies, defined as reporting primary data on herbivore impacts on Arctic plants and plant communities. We extracted information on variables that describe the ecological context of the studies, from the studies themselves and from geospatial data. We synthesized the findings narratively and created a Shiny App where the coded data are searchable and variables can be visually explored. Review findings: We identified 309 relevant articles with 662 studies (representing different ecological contexts or datasets within the same article). These studies addressed vertebrate herbivory seven times more often than invertebrate herbivory. Geographically, the largest cluster of studies was in Northern Fennoscandia. Warmer and wetter parts of the Arctic had the largest representation, as did coastal areas and areas where the increase in temperature has been moderate. In contrast, studies spanned the full range of ecological context variables describing Arctic vertebrate herbivore diversity and human population density and impact. Conclusions: The current evidence base might not be sufficient to understand the effects of herbivores on Arctic vegetation throughout the region, as we identified clear biases in the distribution of herbivore studies in the Arctic and a limited evidence base on invertebrate herbivory. In particular, the overrepresentation of studies in areas with moderate increases in temperature prevents robust generalizations about the effects of herbivores under different climatic scenarios. [ABSTRACT FROM AUTHOR]

Published
2021
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14. Tundra Trait Team: A database of plant traits spanning the tundra biome

Author

Bjorkman, A. D., Myers-Smith, I. H., Elmendorf, S. C., Normand, S., Thomas, H. J. D., Alatalo, J. M., Alexander, H., Anadon-Rosell, A., Angers-Blondin, S., Bai, Y., Baruah, G., te Beest, M., Berner, L., Björk, R. G., Blok, D., Bruelheide, H., Buchwal, A., Buras, A., Carbognani, M., Christie, K., Collier, L. S., Cooper, E. J., Cornelissen, J. H. C., Dickinson, K. J. M., Dullinger, S., Elberling, B., Eskelinen, A., Forbes, B. C., Frei, E. R., Iturrate-Garcia, M., Good, M. K., Grau, O., Green, P., Greve, M., Grogan, P., Haider, S., Hájek, T., Hallinger, M., Happonen, K., Harper, K. A., Heijmans, M. M. P. D., Henry, G. H. R., Hermanutz, L., Hewitt, R. E., Hollister, R. D., Hudson, J., Hülber, K., Iversen, C. M., Jaroszynska, F., Jiménez-Alfaro, B., Johnstone, J., Jorgensen, R. H., Kaarlejärvi, E., Klady, R., Klimešová, J., Korsten, A., Kuleza, S., Kulonen, A., Lamarque, L. J., Lantz, T., Lavalle, A., Lembrechts, J. J., Lévesque, E., Little, C. J., Luoto, M., Macek, P., Mack, M. C., Mathakutha, R., Michelsen, A., Milbau, A., Molau, U., Morgan, J. W., Mörsdorf, M. A., Nabe-Nielsen, J., Nielsen, S. S., Ninot, J. M., Oberbauer, S. F., Olofsson, J., Onipchenko, V. G., Petraglia, A., Pickering, C., Prevéy, J. S., Rixen, C., Rumpf, S. B., Schaepman-Strub, G., Semenchuk, P., Shetti, R., Soudzilovskaia, N. A., Spasojevic, M. J., Speed, J. D. M., Street, L. E., Suding, K., Tape, K. D., Tomaselli, M., Trant, A., Treier, U. A., Tremblay, J. P., Tremblay, M., Venn, S., Virkkala, A. M., Vowles, T., Weijers, S., Wilmking, M., Wipf, S., Zamin, T., Bjorkman, A. D., Myers-Smith, I. H., Elmendorf, S. C., Normand, S., Thomas, H. J. D., Alatalo, J. M., Alexander, H., Anadon-Rosell, A., Angers-Blondin, S., Bai, Y., Baruah, G., te Beest, M., Berner, L., Björk, R. G., Blok, D., Bruelheide, H., Buchwal, A., Buras, A., Carbognani, M., Christie, K., Collier, L. S., Cooper, E. J., Cornelissen, J. H. C., Dickinson, K. J. M., Dullinger, S., Elberling, B., Eskelinen, A., Forbes, B. C., Frei, E. R., Iturrate-Garcia, M., Good, M. K., Grau, O., Green, P., Greve, M., Grogan, P., Haider, S., Hájek, T., Hallinger, M., Happonen, K., Harper, K. A., Heijmans, M. M. P. D., Henry, G. H. R., Hermanutz, L., Hewitt, R. E., Hollister, R. D., Hudson, J., Hülber, K., Iversen, C. M., Jaroszynska, F., Jiménez-Alfaro, B., Johnstone, J., Jorgensen, R. H., Kaarlejärvi, E., Klady, R., Klimešová, J., Korsten, A., Kuleza, S., Kulonen, A., Lamarque, L. J., Lantz, T., Lavalle, A., Lembrechts, J. J., Lévesque, E., Little, C. J., Luoto, M., Macek, P., Mack, M. C., Mathakutha, R., Michelsen, A., Milbau, A., Molau, U., Morgan, J. W., Mörsdorf, M. A., Nabe-Nielsen, J., Nielsen, S. S., Ninot, J. M., Oberbauer, S. F., Olofsson, J., Onipchenko, V. G., Petraglia, A., Pickering, C., Prevéy, J. S., Rixen, C., Rumpf, S. B., Schaepman-Strub, G., Semenchuk, P., Shetti, R., Soudzilovskaia, N. A., Spasojevic, M. J., Speed, J. D. M., Street, L. E., Suding, K., Tape, K. D., Tomaselli, M., Trant, A., Treier, U. A., Tremblay, J. P., Tremblay, M., Venn, S., Virkkala, A. M., Vowles, T., Weijers, S., Wilmking, M., Wipf, S., and Zamin, T.

Abstract

Motivation: The Tundra Trait Team (TTT) database includes field-based measurements of key traits related to plant form and function at multiple sites across the tundra biome. This dataset can be used to address theoretical questions about plant strategy and trade-offs, trait–environment relationships and environmental filtering, and trait variation across spatial scales, to validate satellite data, and to inform Earth system model parameters. Main types of variable contained: The database contains 91,970 measurements of 18 plant traits. The most frequently measured traits (> 1,000 observations each) include plant height, leaf area, specific leaf area, leaf fresh and dry mass, leaf dry matter content, leaf nitrogen, carbon and phosphorus content, leaf C:N and N:P, seed mass, and stem specific density. Spatial location and grain: Measurements were collected in tundra habitats in both the Northern and Southern Hemispheres, including Arctic sites in Alaska, Canada, Greenland, Fennoscandia and Siberia, alpine sites in the European Alps, Colorado Rockies, Caucasus, Ural Mountains, Pyrenees, Australian Alps, and Central Otago Mountains (New Zealand), and sub-Antarctic Marion Island. More than 99% of observations are georeferenced. Time period and grain: All data were collected between 1964 and 2018. A small number of sites have repeated trait measurements at two or more time periods. Major taxa and level of measurement: Trait measurements were made on 978 terrestrial vascular plant species growing in tundra habitats. Most observations are on individuals (86%), while the remainder represent plot or site means or maximums per species. Software format: csv file and GitHub repository with data cleaning scripts in R; contribution to TRY plant trait database (www.try-db.org) to be included in the next version release.

Published
2018

15. Traditional plant functional groups explain variation in economic but not size‐related traits across the tundra biome

Author

Thomas, H. J. D., primary, Myers‐Smith, I. H., additional, Bjorkman, A. D., additional, Elmendorf, S. C., additional, Blok, D., additional, Cornelissen, J. H. C., additional, Forbes, B. C., additional, Hollister, R. D., additional, Normand, S., additional, Prevéy, J. S., additional, Rixen, C., additional, Schaepman‐Strub, G., additional, Wilmking, M., additional, Wipf, S., additional, Cornwell, W. K., additional, Kattge, J., additional, Goetz, S. J., additional, Guay, K. C., additional, Alatalo, J. M., additional, Anadon‐Rosell, A., additional, Angers‐Blondin, S., additional, Berner, L. T., additional, Björk, R. G., additional, Buchwal, A., additional, Buras, A., additional, Carbognani, M., additional, Christie, K., additional, Siegwart Collier, L., additional, Cooper, E. J., additional, Eskelinen, A., additional, Frei, E. R., additional, Grau, O., additional, Grogan, P., additional, Hallinger, M., additional, Heijmans, M. M. P. D., additional, Hermanutz, L., additional, Hudson, J. M. G., additional, Hülber, K., additional, Iturrate‐Garcia, M., additional, Iversen, C. M., additional, Jaroszynska, F., additional, Johnstone, J. F., additional, Kaarlejärvi, E., additional, Kulonen, A., additional, Lamarque, L. J., additional, Lévesque, E., additional, Little, C. J., additional, Michelsen, A., additional, Milbau, A., additional, Nabe‐Nielsen, J., additional, Nielsen, S. S., additional, Ninot, J. M., additional, Oberbauer, S. F., additional, Olofsson, J., additional, Onipchenko, V. G., additional, Petraglia, A., additional, Rumpf, S. B., additional, Semenchuk, P. R., additional, Soudzilovskaia, N. A., additional, Spasojevic, M. J., additional, Speed, J. D. M., additional, Tape, K. D., additional, te Beest, M., additional, Tomaselli, M., additional, Trant, A., additional, Treier, U. A., additional, Venn, S., additional, Vowles, T., additional, Weijers, S., additional, Zamin, T., additional, Atkin, O. K., additional, Bahn, M., additional, Blonder, B., additional, Campetella, G., additional, Cerabolini, B. E. L., additional, Chapin III, F. S., additional, Dainese, M., additional, de Vries, F. T., additional, Díaz, S., additional, Green, W., additional, Jackson, R. B., additional, Manning, P., additional, Niinemets, Ü., additional, Ozinga, W. A., additional, Peñuelas, J., additional, Reich, P. B., additional, Schamp, B., additional, Sheremetev, S., additional, and van Bodegom, P. M., additional

Published
2018
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16. The production and turnover of extramatrical mycelium of ectomycorrhizal fungi in forest soils:role in carbon cycling

Author

Ekblad, A., Wallander, H., Godbold, D. L., Cruz, C., Johnson, D., Baldrian, P., Björk, R. G., Epron, D., Kieliszewska-Rokicka, B., Kjøller, Rasmus, Kraigher, H., Matzner, E., Neumann, J., Plassard, C., Ekblad, A., Wallander, H., Godbold, D. L., Cruz, C., Johnson, D., Baldrian, P., Björk, R. G., Epron, D., Kieliszewska-Rokicka, B., Kjøller, Rasmus, Kraigher, H., Matzner, E., Neumann, J., and Plassard, C.

Published
2013

17. A fertile peatland forest does not constitute a major greenhouse gas sink

Author

Meyer, A., primary, Tarvainen, L., additional, Nousratpour, A., additional, Björk, R. G., additional, Ernfors, M., additional, Grelle, A., additional, Kasimir Klemedtsson, Å, additional, Lindroth, A., additional, Räntfors, M., additional, Rütting, T., additional, Wallin, G., additional, Weslien, P., additional, and Klemedtsson, L., additional

Published
2013
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18. Alpine cushion plants inhibit the loss of phylogenetic diversity in severe environments

Author

Butterfield, B. J., primary, Cavieres, L. A., additional, Callaway, R. M., additional, Cook, B. J., additional, Kikvidze, Z., additional, Lortie, C. J., additional, Michalet, R., additional, Pugnaire, F. I., additional, Schöb, C., additional, Xiao, S., additional, Zaitchek, B., additional, Anthelme, F., additional, Björk, R. G., additional, Dickinson, K., additional, Gavilán, R., additional, Kanka, R., additional, Maalouf, J.-P., additional, Noroozi, J., additional, Parajuli, R., additional, Phoenix, G. K., additional, Reid, A., additional, Ridenour, W., additional, Rixen, C., additional, Wipf, S., additional, Zhao, L., additional, and Brooker, R. W., additional

Published
2013
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20. Fine-root turnover rates of European forests revisited: an analysis of data from sequential coring and ingrowth cores

Author

Brunner, I., primary, Bakker, M. R., additional, Björk, R. G., additional, Hirano, Y., additional, Lukac, M., additional, Aranda, X., additional, Børja, I., additional, Eldhuset, T. D., additional, Helmisaari, H. S., additional, Jourdan, C., additional, Konôpka, B., additional, López, B. C., additional, Miguel Pérez, C., additional, Persson, H., additional, and Ostonen, I., additional

Published
2012
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22. Traditional plant functional groups explain variation in economic but not size-related traits across the tundra biome.

Author

Thomas HJD, Myers-Smith IH, Bjorkman AD, Elmendorf SC, Blok D, Cornelissen JHC, Forbes BC, Hollister RD, Normand S, Prevéy JS, Rixen C, Schaepman-Strub G, Wilmking M, Wipf S, Cornwell WK, Kattge J, Goetz SJ, Guay KC, Alatalo JM, Anadon-Rosell A, Angers-Blondin S, Berner LT, Björk RG, Buchwal A, Buras A, Carbognani M, Christie K, Siegwart Collier L, Cooper EJ, Eskelinen A, Frei ER, Grau O, Grogan P, Hallinger M, Heijmans MMPD, Hermanutz L, Hudson JMG, Hülber K, Iturrate-Garcia M, Iversen CM, Jaroszynska F, Johnstone JF, Kaarlejärvi E, Kulonen A, Lamarque LJ, Lévesque E, Little CJ, Michelsen A, Milbau A, Nabe-Nielsen J, Nielsen SS, Ninot JM, Oberbauer SF, Olofsson J, Onipchenko VG, Petraglia A, Rumpf SB, Semenchuk PR, Soudzilovskaia NA, Spasojevic MJ, Speed JDM, Tape KD, Te Beest M, Tomaselli M, Trant A, Treier UA, Venn S, Vowles T, Weijers S, Zamin T, Atkin OK, Bahn M, Blonder B, Campetella G, Cerabolini BEL, Chapin Iii FS, Dainese M, de Vries FT, Díaz S, Green W, Jackson RB, Manning P, Niinemets Ü, Ozinga WA, Peñuelas J, Reich PB, Schamp B, Sheremetev S, and van Bodegom PM

Abstract

Aim: Plant functional groups are widely used in community ecology and earth system modelling to describe trait variation within and across plant communities. However, this approach rests on the assumption that functional groups explain a large proportion of trait variation among species. We test whether four commonly used plant functional groups represent variation in six ecologically important plant traits., Location: Tundra biome., Time Period: Data collected between 1964 and 2016., Major Taxa Studied: 295 tundra vascular plant species., Methods: We compiled a database of six plant traits (plant height, leaf area, specific leaf area, leaf dry matter content, leaf nitrogen, seed mass) for tundra species. We examined the variation in species-level trait expression explained by four traditional functional groups (evergreen shrubs, deciduous shrubs, graminoids, forbs), and whether variation explained was dependent upon the traits included in analysis. We further compared the explanatory power and species composition of functional groups to alternative classifications generated using post hoc clustering of species-level traits., Results: Traditional functional groups explained significant differences in trait expression, particularly amongst traits associated with resource economics, which were consistent across sites and at the biome scale. However, functional groups explained 19% of overall trait variation and poorly represented differences in traits associated with plant size. Post hoc classification of species did not correspond well with traditional functional groups, and explained twice as much variation in species-level trait expression., Main Conclusions: Traditional functional groups only coarsely represent variation in well-measured traits within tundra plant communities, and better explain resource economic traits than size-related traits. We recommend caution when using functional group approaches to predict tundra vegetation change, or ecosystem functions relating to plant size, such as albedo or carbon storage. We argue that alternative classifications or direct use of specific plant traits could provide new insights for ecological prediction and modelling.

Published
2019
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