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3. Forest Disturbance Determines Diversity of Epiphytic Lichens and Bryophytes on Trunk Bases in Tropical Dry Forests.

Author

Benítez, Ángel, Ortiz, Jorge, Matamoros-Apolo, Daniela, Bustamante, Andrea, López, Fausto, Yangua-Solano, Erika, and Gusmán-Montalván, Elizabeth

Subjects
TROPICAL dry forests, FOREST density, CRYPTOGAMS, NUMBERS of species, BRYOPHYTES, EPIPHYTIC lichens
Abstract

The dry forests of southern Ecuador are characterized by a great floristic variety and high endemism rates in different taxonomic groups; however, these forests are disappearing at an alarming rate due to anthropogenic disturbances. Epiphytic cryptogams (bryophytes and lichens) are important in seasonally dry tropical forests (SDTFs) and, due to their physiology (poikilohydric species), are sensitive to the changes associated with specific human disturbances. We examined the response of epiphytic cryptogams to habitat disturbance in SDTFs (natural and semi-natural forests) by registering the frequency and coverage of epiphytic cryptogams on 182 trees. We recorded a total of 53 epiphytic cryptogams (47 lichens and 6 bryophytes). A greater number of species was found in the natural forest, with 51 species, than the semi-natural forests (DFs), which had 45 species. We found that total richness tended to decrease with increased intensity of disturbance. The impoverishment was particularly related to the reduction in tree density and diversity (e.g., selective logging) in semi-natural compared to natural forests. However, the epiphytic composition showed little relationship with forests disturbance. We conclude that anthropic disturbance, particularly selective logging, are the main factors affecting the diversity of epiphytic cryptogams in the SDTFs from southern Ecuador. [ABSTRACT FROM AUTHOR]

Published
2024
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6. Grazing and ecosystem service delivery in global drylands

Author

European Research Council, Generalitat Valenciana, Alexander von Humboldt Foundation, German Centre for Integrative Biodiversity Research, German Research Foundation, European Commission, Asia Foundation, Fundação para a Ciência e a Tecnologia (Portugal), Ministerio de Ciencia e Innovación (España), Comunidad de Madrid, Northern Arizona University, Consejo Nacional de Ciencia y Tecnología (México), Ministério da Ciência, Tecnologia e Inovação (Brasil), National Science Foundation (US), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil), National Research Foundation (South Africa), Federal Ministry of Education and Research (Germany), Natural Sciences and Engineering Research Council of Canada, Australian Research Council, Agencia Estatal de Investigación (España), Junta de Andalucía, National Natural Science Foundation of China, Universidad Nacional de Río Negro, Junta de Extremadura, Ferdowsi University of Mashhad, Environmental Investment Fund of Namibia, Taylor Family Foundation, Maestre, Fernando T. [0000-0002-7434-4856], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Eldridge, David J. [0000-0002-2191-486X], Berdugo, Miguel [0000-0003-1053-8907], Gozalo, Beatriz [0000-0003-3082-4695], Ochoa, Victoria [0000-0002-2055-2094], Guirado, Emilio [0000-0001-5348-7391], García-Gómez, Miguel [0000-0003-3148-1495], Valencia, Enrique [0000-0003-3359-0759], Gaitán, Juan J. [0000-0003-2889-1418], Deák, Balázs [0000-0001-6938-1997], Donoso, David [0000-0002-3408-1457], Erdenetsetseg, Batdegleg [0000-0002-4508-8929], Espinosa, Carlos Iván [0000-0002-5330-4505], Fajardo, Alex [0000-0002-2202-6207], Farzam, Mohammad [0000-0003-1947-0187], Ferrante, Daniela [0000-0002-6056-3839], Frank, Anke S. K. [0000-0002-0177-4898], Fraser, L. H. [0000-0003-3998-5540], Jeltsch, Florian [0000-0002-4670-6469], Gherardi, Laureano [0000-0001-5743-1096], Greenville, Aaron [0000-0002-0113-4778], Guerra, Carlos A. [0000-0003-4917-2105], Gusmán Montalván, Elizabeth [0000-0002-3103-0419], Hernández Hernández, Rosa M. [0000-0003-0689-8862], Huber-Sannwald, E. [0000-0002-8321-1270], Hughes, Frederic M. [0000-0002-5835-953X], Jadán, Oswaldo. [0000-0002-7865-2418], Jentsch, Anke [0000-0002-2345-8300], Kaseke, Kudzai Farai [0000-0002-3856-0711], Köbel, Melanie [0000-0001-8272-7999], Koopman, Jesica E. [0000-0002-7944-7969], Leder, Cintia [0000-0003-4829-4477], Linstädter, Anja [0000-0003-0038-9557], Le Roux, Peter C. [0000-0002-7941-7444], Liancourt, Pierre [0000-0002-3109-8755], Liu, Jushan [0000-0001-7768-914X], Munson, Seth M. [0000-0002-2736-6374], Low, Michelle A. [0000-0002-2148-9752], Maggs Kölling, Gillian [0000-0003-3296-8553], Makhalanyane, Thulani P. [0000-0002-8173-1678], Malam Issa, Oumarou [0000-0001-8357-914X], Manzaneda, Antonio J. [0000-0001-9384-7910], Marais, Eugene [0000-0001-7155-9942], Mora, Juan P. [0000-0002-6335-0150], Moreno, Gerardo [0000-0001-8053-2696], Nunes, Alice [0000-0002-6900-3838], Oliva, Gabriel [0000-0002-7839-8851], Oñatibia, Gastón [0000-0003-2329-6601], Peter, Guadalupe [0000-0002-7792-7045], Pivari, Marco O. D. [0000-0003-1764-4577], Pueyo, Yolanda [0000-0001-6970-7790], Quiroga, R Emiliano [0000-0001-9785-451X], Reed, Sasha C. [0000-0002-8597-8619], Rey, P.J. [0000-0001-5550-0393], Teixido, Alberto L. [0000-0001-8009-1237], Richard, Benoit [0000-0003-4522-027X], Rodríguez, Alexandra [0000-0001-5849-8778], Rolo, Víctor [0000-0001-5854-9512], Rubalcaba, Juan G. [0000-0003-4646-070X], Salah, Ayman [0000-0003-0596-1292], Stavi, Ilan [0000-0001-9725-0003], Stephens, Colton R. A. [0000-0002-8744-6405], Swemmer, Anthony [0000-0003-1378-7394], Thomas, Andrew [0000-0002-1360-1687], Throop, Heather L. [0000-0002-7963-4342], Travers, Samantha [0000-0002-6252-1667], Val, James [0000-0003-4519-4008], Valkó, Orsolya [0000-0001-7919-6293], van den Brink, Liesbeth [0000-0003-0313-8147], Velasco Ayuso, Sergio [0000-0002-5924-8786], Velbert, Frederike [0000-0003-0499-3807], Wamiti, Wanyoike [0000-0001-7300-2101], Asencio, Sergio [0000-0003-4376-2964], Wang, Deli [0000-0001-6576-9193], Wang, Lixin [0000-0003-0968-1247], Wardle, Glenda M. [0000-0003-0189-1899], Yahdjian, Laura [0000-0002-9635-1221], Zaady, Eli [0000-0002-3304-534X], Yuanming, Zhang [0000-0003-1370-4181], Singh, Brajesh K. [0000-0003-4413-4185], Gross, Nicolas [0000-0001-9730-3240], Mendoza, Betty [0000-0003-1149-7801], Plaza de Carlos, César [0000-0001-8616-7001], Rey, Ana [0000-0003-0394-101X], Hu, Hang-Wei [0000-0002-3294-102X], He, Ji-Zheng [0000-0002-9169-8058], Wang, Jun-Tao [0000-0002-1822-2176], Lehmann, Anika [0000-0002-9101-9297], Rillig, Matthias C. [0000-0003-3541-7853], Cesarz, Simone [0000-0003-2334-5119], Eisenhauer, Nico [0000-0002-0371-6720], Martínez-Valderrama, Jaime [0000-0001-5859-5674], Moreno-Jiménez, Eduardo [0000-0002-2125-1197], Salas, O. [0000-0003-0142-9450], Abedi, Mehdi [0000-0002-1499-0119], Ahmadian , Negar [0000-0003-1191-3019], Alados, Concepción L. [0000-0002-6227-861X], Aramayo, Valeria [0000-0003-4827-6914], Amghar, Fateh [0000-0003-0379-7273], Arredondo, Tulio [0000-0003-1969-9942], Ahumada, Rodrigo J. [0000-0002-7246-4459], Bahalkeh, Khadijeh [0000-0003-1485-0316], Salem, Farah Ben [0000-0001-6100-9496], Blaum, Niels [0000-0001-6807-5162], Boldgiv, Bazartseren [0000-0003-0015-8142], Browker, Matthew A. [0000-0002-5891-0264], Bran, Donaldo [0000-0001-7749-2726], Bu, Chongfeng [0000-0002-5839-7229], Canessa, Rafaella [0000-0002-6979-9880], Castro, Helena [0000-0003-1818-1535], Castro, Ignacio [0000-0002-7594-6824], Castro-Quezada, Patricio [0000-0002-2366-2256], Conceição, Abel A. [0000-0001-7461-0133], Currier, Courtney M. [0000-0002-7617-239X], Darrouzet-Nardi, Anthony [0000-0002-2825-7962], Dougill, Andrew [0000-0002-3422-8228], Maestre, Fernando T., Le Bagousse-Pinguet, Yoann, Delgado-Baquerizo, Manuel, Eldridge, David J., Sáiz, Hugo, Berdugo, Miguel, Gozalo, Beatriz, Ochoa, Victoria, Guirado, Emilio, García-Gómez, Miguel, Valencia, Enrique, Zhou, Xiaobing, Singh, Brajesh K., Gross, Nicolas, Mendoza, Betty, Plaza de Carlos, César, Díaz-Martínez, Paloma, Rey, Ana, Hu, Hang-Wei, He, Ji-Zheng, Wang, Jun-Tao, Bu, Chongfeng, Lehmann, Anika, Rillig, Matthias C., Cesarz, Simone, Eisenhauer, Nico, Martínez-Valderrama, Jaime, Moreno-Jiménez, Eduardo, Salas, O., Abedi, Mehdi, Ahmadian , Negar, Alados, Concepcion L., Canessa, Rafaella, Aramayo, Valeria, Amghar, Fateh, Arredondo, Tulio, Ahumada, Rodrigo J., Bahalkeh, Khadijeh, Salem, Farah Ben, Blaum, Niels, Boldgiv, Bazartseren, Browker, Matthew A., Bran, Donaldo, Castillo-Monroy, Andrea P., Castro, Helena, Castro, Ignacio, Castro-Quezada, Patricio, Chibani, Roukaya, Conceição, Abel A., Currier, Courtney M., Darrouzet-Nardi, Anthony, Jeltsch, Florian, Deák, Balázs, Donoso, David, Dougill, Andrew, Durán, Jorge, Erdenetsetseg, Batdegleg, Espinosa, Carlos Iván, Fajardo, Alex, Farzam, Mohammad, Ferrante, Daniela, Frank, Anke S. K., Jentsch, Anke, Fraser, L. H., Gherardi, Laureano, Greenville, Aaron, Guerra, Carlos A., Gusmán Montalván, Elizabeth, Hernández Hernández, Rosa M., Hölzel, Norbert, Huber-Sannwald, E., Hughes, Frederic M., Jadán, Oswaldo, Kaseke, Kudzai Farai, Köbel, Melanie, Koopman, Jesica E., Leder, Cintia, Linstädter, Anja, Le Roux, Peter C., Li, Xinkai, Liancourt, Pierre, Rodríguez-Pereiras, Alexandra, Liu, Jushan, Low, Michelle A., Maggs Kölling, Gillian, Makhalanyane, Thulani P., Malam Issa, Oumarou, Manzaneda, Antonio J., Marais, Eugene, Mora, Juan P., Moreno, Gerardo, Munson, Seth M., Rolo, Víctor, Nunes, Alice, Oliva, Gabriel, Oñatibia, Gastón, Pivari, Marco O. D., Pueyo, Yolanda, Quiroga, R Emiliano, Rahmanian, Soroor, Reed, Sasha C., Rey, P.J., Richard, Benoit, Rubalcaba, Juan G., Ruppert, Jan C., Salah, Ayman, Schuchardt, Max A., Spann, Sedona, Stavi, Ilan, Stephens, Colton R. A., Swemmer, Anthony, Gaitán, Juan J., Teixido, Alberto L., Thomas, Andrew, Throop, Heather L., Tielbörger, Katja, Travers, Samantha, Val, James, Valkó, Orsolya, van den Brink, Liesbeth, Velasco Ayuso, Sergio, Velbert, Frederike, Asencio, Sergio, Wamiti, Wanyoike, Wang, Deli, Wang, Lixin, Wardle, Glenda M., Yahdjian, Laura, Zaady, Eli, Yuanming, Zhang, European Research Council, Generalitat Valenciana, Alexander von Humboldt Foundation, German Centre for Integrative Biodiversity Research, German Research Foundation, European Commission, Asia Foundation, Fundação para a Ciência e a Tecnologia (Portugal), Ministerio de Ciencia e Innovación (España), Comunidad de Madrid, Northern Arizona University, Consejo Nacional de Ciencia y Tecnología (México), Ministério da Ciência, Tecnologia e Inovação (Brasil), National Science Foundation (US), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil), National Research Foundation (South Africa), Federal Ministry of Education and Research (Germany), Natural Sciences and Engineering Research Council of Canada, Australian Research Council, Agencia Estatal de Investigación (España), Junta de Andalucía, National Natural Science Foundation of China, Universidad Nacional de Río Negro, Junta de Extremadura, Ferdowsi University of Mashhad, Environmental Investment Fund of Namibia, Taylor Family Foundation, Maestre, Fernando T. [0000-0002-7434-4856], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Eldridge, David J. [0000-0002-2191-486X], Berdugo, Miguel [0000-0003-1053-8907], Gozalo, Beatriz [0000-0003-3082-4695], Ochoa, Victoria [0000-0002-2055-2094], Guirado, Emilio [0000-0001-5348-7391], García-Gómez, Miguel [0000-0003-3148-1495], Valencia, Enrique [0000-0003-3359-0759], Gaitán, Juan J. [0000-0003-2889-1418], Deák, Balázs [0000-0001-6938-1997], Donoso, David [0000-0002-3408-1457], Erdenetsetseg, Batdegleg [0000-0002-4508-8929], Espinosa, Carlos Iván [0000-0002-5330-4505], Fajardo, Alex [0000-0002-2202-6207], Farzam, Mohammad [0000-0003-1947-0187], Ferrante, Daniela [0000-0002-6056-3839], Frank, Anke S. K. [0000-0002-0177-4898], Fraser, L. H. [0000-0003-3998-5540], Jeltsch, Florian [0000-0002-4670-6469], Gherardi, Laureano [0000-0001-5743-1096], Greenville, Aaron [0000-0002-0113-4778], Guerra, Carlos A. [0000-0003-4917-2105], Gusmán Montalván, Elizabeth [0000-0002-3103-0419], Hernández Hernández, Rosa M. [0000-0003-0689-8862], Huber-Sannwald, E. [0000-0002-8321-1270], Hughes, Frederic M. [0000-0002-5835-953X], Jadán, Oswaldo. [0000-0002-7865-2418], Jentsch, Anke [0000-0002-2345-8300], Kaseke, Kudzai Farai [0000-0002-3856-0711], Köbel, Melanie [0000-0001-8272-7999], Koopman, Jesica E. [0000-0002-7944-7969], Leder, Cintia [0000-0003-4829-4477], Linstädter, Anja [0000-0003-0038-9557], Le Roux, Peter C. [0000-0002-7941-7444], Liancourt, Pierre [0000-0002-3109-8755], Liu, Jushan [0000-0001-7768-914X], Munson, Seth M. [0000-0002-2736-6374], Low, Michelle A. [0000-0002-2148-9752], Maggs Kölling, Gillian [0000-0003-3296-8553], Makhalanyane, Thulani P. [0000-0002-8173-1678], Malam Issa, Oumarou [0000-0001-8357-914X], Manzaneda, Antonio J. [0000-0001-9384-7910], Marais, Eugene [0000-0001-7155-9942], Mora, Juan P. [0000-0002-6335-0150], Moreno, Gerardo [0000-0001-8053-2696], Nunes, Alice [0000-0002-6900-3838], Oliva, Gabriel [0000-0002-7839-8851], Oñatibia, Gastón [0000-0003-2329-6601], Peter, Guadalupe [0000-0002-7792-7045], Pivari, Marco O. D. [0000-0003-1764-4577], Pueyo, Yolanda [0000-0001-6970-7790], Quiroga, R Emiliano [0000-0001-9785-451X], Reed, Sasha C. [0000-0002-8597-8619], Rey, P.J. [0000-0001-5550-0393], Teixido, Alberto L. [0000-0001-8009-1237], Richard, Benoit [0000-0003-4522-027X], Rodríguez, Alexandra [0000-0001-5849-8778], Rolo, Víctor [0000-0001-5854-9512], Rubalcaba, Juan G. [0000-0003-4646-070X], Salah, Ayman [0000-0003-0596-1292], Stavi, Ilan [0000-0001-9725-0003], Stephens, Colton R. A. [0000-0002-8744-6405], Swemmer, Anthony [0000-0003-1378-7394], Thomas, Andrew [0000-0002-1360-1687], Throop, Heather L. [0000-0002-7963-4342], Travers, Samantha [0000-0002-6252-1667], Val, James [0000-0003-4519-4008], Valkó, Orsolya [0000-0001-7919-6293], van den Brink, Liesbeth [0000-0003-0313-8147], Velasco Ayuso, Sergio [0000-0002-5924-8786], Velbert, Frederike [0000-0003-0499-3807], Wamiti, Wanyoike [0000-0001-7300-2101], Asencio, Sergio [0000-0003-4376-2964], Wang, Deli [0000-0001-6576-9193], Wang, Lixin [0000-0003-0968-1247], Wardle, Glenda M. [0000-0003-0189-1899], Yahdjian, Laura [0000-0002-9635-1221], Zaady, Eli [0000-0002-3304-534X], Yuanming, Zhang [0000-0003-1370-4181], Singh, Brajesh K. [0000-0003-4413-4185], Gross, Nicolas [0000-0001-9730-3240], Mendoza, Betty [0000-0003-1149-7801], Plaza de Carlos, César [0000-0001-8616-7001], Rey, Ana [0000-0003-0394-101X], Hu, Hang-Wei [0000-0002-3294-102X], He, Ji-Zheng [0000-0002-9169-8058], Wang, Jun-Tao [0000-0002-1822-2176], Lehmann, Anika [0000-0002-9101-9297], Rillig, Matthias C. [0000-0003-3541-7853], Cesarz, Simone [0000-0003-2334-5119], Eisenhauer, Nico [0000-0002-0371-6720], Martínez-Valderrama, Jaime [0000-0001-5859-5674], Moreno-Jiménez, Eduardo [0000-0002-2125-1197], Salas, O. [0000-0003-0142-9450], Abedi, Mehdi [0000-0002-1499-0119], Ahmadian , Negar [0000-0003-1191-3019], Alados, Concepción L. [0000-0002-6227-861X], Aramayo, Valeria [0000-0003-4827-6914], Amghar, Fateh [0000-0003-0379-7273], Arredondo, Tulio [0000-0003-1969-9942], Ahumada, Rodrigo J. [0000-0002-7246-4459], Bahalkeh, Khadijeh [0000-0003-1485-0316], Salem, Farah Ben [0000-0001-6100-9496], Blaum, Niels [0000-0001-6807-5162], Boldgiv, Bazartseren [0000-0003-0015-8142], Browker, Matthew A. [0000-0002-5891-0264], Bran, Donaldo [0000-0001-7749-2726], Bu, Chongfeng [0000-0002-5839-7229], Canessa, Rafaella [0000-0002-6979-9880], Castro, Helena [0000-0003-1818-1535], Castro, Ignacio [0000-0002-7594-6824], Castro-Quezada, Patricio [0000-0002-2366-2256], Conceição, Abel A. [0000-0001-7461-0133], Currier, Courtney M. [0000-0002-7617-239X], Darrouzet-Nardi, Anthony [0000-0002-2825-7962], Dougill, Andrew [0000-0002-3422-8228], Maestre, Fernando T., Le Bagousse-Pinguet, Yoann, Delgado-Baquerizo, Manuel, Eldridge, David J., Sáiz, Hugo, Berdugo, Miguel, Gozalo, Beatriz, Ochoa, Victoria, Guirado, Emilio, García-Gómez, Miguel, Valencia, Enrique, Zhou, Xiaobing, Singh, Brajesh K., Gross, Nicolas, Mendoza, Betty, Plaza de Carlos, César, Díaz-Martínez, Paloma, Rey, Ana, Hu, Hang-Wei, He, Ji-Zheng, Wang, Jun-Tao, Bu, Chongfeng, Lehmann, Anika, Rillig, Matthias C., Cesarz, Simone, Eisenhauer, Nico, Martínez-Valderrama, Jaime, Moreno-Jiménez, Eduardo, Salas, O., Abedi, Mehdi, Ahmadian , Negar, Alados, Concepcion L., Canessa, Rafaella, Aramayo, Valeria, Amghar, Fateh, Arredondo, Tulio, Ahumada, Rodrigo J., Bahalkeh, Khadijeh, Salem, Farah Ben, Blaum, Niels, Boldgiv, Bazartseren, Browker, Matthew A., Bran, Donaldo, Castillo-Monroy, Andrea P., Castro, Helena, Castro, Ignacio, Castro-Quezada, Patricio, Chibani, Roukaya, Conceição, Abel A., Currier, Courtney M., Darrouzet-Nardi, Anthony, Jeltsch, Florian, Deák, Balázs, Donoso, David, Dougill, Andrew, Durán, Jorge, Erdenetsetseg, Batdegleg, Espinosa, Carlos Iván, Fajardo, Alex, Farzam, Mohammad, Ferrante, Daniela, Frank, Anke S. K., Jentsch, Anke, Fraser, L. H., Gherardi, Laureano, Greenville, Aaron, Guerra, Carlos A., Gusmán Montalván, Elizabeth, Hernández Hernández, Rosa M., Hölzel, Norbert, Huber-Sannwald, E., Hughes, Frederic M., Jadán, Oswaldo, Kaseke, Kudzai Farai, Köbel, Melanie, Koopman, Jesica E., Leder, Cintia, Linstädter, Anja, Le Roux, Peter C., Li, Xinkai, Liancourt, Pierre, Rodríguez-Pereiras, Alexandra, Liu, Jushan, Low, Michelle A., Maggs Kölling, Gillian, Makhalanyane, Thulani P., Malam Issa, Oumarou, Manzaneda, Antonio J., Marais, Eugene, Mora, Juan P., Moreno, Gerardo, Munson, Seth M., Rolo, Víctor, Nunes, Alice, Oliva, Gabriel, Oñatibia, Gastón, Pivari, Marco O. D., Pueyo, Yolanda, Quiroga, R Emiliano, Rahmanian, Soroor, Reed, Sasha C., Rey, P.J., Richard, Benoit, Rubalcaba, Juan G., Ruppert, Jan C., Salah, Ayman, Schuchardt, Max A., Spann, Sedona, Stavi, Ilan, Stephens, Colton R. A., Swemmer, Anthony, Gaitán, Juan J., Teixido, Alberto L., Thomas, Andrew, Throop, Heather L., Tielbörger, Katja, Travers, Samantha, Val, James, Valkó, Orsolya, van den Brink, Liesbeth, Velasco Ayuso, Sergio, Velbert, Frederike, Asencio, Sergio, Wamiti, Wanyoike, Wang, Deli, Wang, Lixin, Wardle, Glenda M., Yahdjian, Laura, Zaady, Eli, and Yuanming, Zhang

Abstract

Grazing represents the most extensive use of land worldwide. Yet its impacts on ecosystem services remain uncertain because pervasive interactions between grazing pressure, climate, soil properties, and biodiversity may occur but have never been addressed simultaneously. Using a standardized survey at 98 sites across six continents, we show that interactions between grazing pressure, climate, soil, and biodiversity are critical to explain the delivery of fundamental ecosystem services across drylands worldwide. Increasing grazing pressure reduced ecosystem service delivery in warmer and species-poor drylands, whereas positive effects of grazing were observed in colder and species-rich areas. Considering interactions between grazing and local abiotic and biotic factors is key for understanding the fate of dryland ecosystems under climate change and increasing human pressure. Copyright © 2022 the authors

Published
2022

7. Diversidad funcional y diversidad filogenética en los bosques secos del sur del Ecuador

Author

Gusmán Montalván, Elizabeth del Carmen, Cruz Rot, Marcelino de la, Escudero Alcantara, Adrián, and Escudero Alcántara, Adrián

Subjects
Silvicultura
Abstract

El concepto tradicional de reglas de ensamblaje refleja la idea de que las especies no co-ocurren al azar sino que están restringidos en su co-ocurrencia por la competencia interespecífica o por un filtrado ambiental. En está tesis abordé la importancia de los procesos que determinan el ensamble de la comunidad en la estructuración de los Bosques Secos en el Sur del Ecuador. Este estudio se realizó en la región biogeográfica Tumbesina, donde se encuentra la mayor concentración de bosques secos tropicales bien conservados del sur de Ecuador, y que constituyen una de las áreas de endemismo más importantes del mundo. El clima se caracteriza por una estación seca que va desde mayo a diciembre y una estación lluviosa de enero a abril, su temperatura anual varía entre 20°C y 26°C y una precipitación promedio anual entre 300 y 700 mm. Mi primer tema fue orientado a evaluar si la distribución de los rasgos funcionales a nivel comunitario es compatible con la existencia de un filtro ambiental (filtrado del hábitat) o con la existencia de un proceso de limitación de la semejanza funcional impuesta por la competencia inter-específica entre 58 especies de plantas leñosas repartidas en 109 parcelas (10x50m). Para ello, se analizó la distribución de los valores de cinco rasgos funcionales (altura máxima, densidad de la madera, área foliar específica, tamaño de la hoja y de masa de la semilla), resumida mediante varios estadísticos (rango, varianza, kurtosis y la desviación estándar de la distribución de distancias funcionales a la especies más próxima) y se comparó con la distribución esperada bajo un modelo nulo con ausencia de competencia. Los resultados obtenidos apoyan que tanto el filtrado ambiental como la limitación a la semejanza afectan el ensamble de las comunidades vegetales de los bosques secos Tumbesinos. Un segundo tema fue identificar si la diversidad funcional está condicionada por los gradientes ambientales, y en concreto si disminuye en los ambientes más estresantes a causa del filtrado ambiental, y si por el contrario aumenta en los ambientes más benignos donde la competencia se vuelve más importante, teniendo en cuenta las posibles modificaciones a este patrón general a causa de las interacciones de facilitación. Para abordar este estudio analizamos tanto las variaciones en la diversidad funcional (respecto a los de los cinco rasgos funcionales empleados en el primer capítulo de la tesis) como las variaciones de diversidad filogenética a lo largo de un gradiente de estrés climático en los bosques tumbesinos, y se contrastaron frente a las diversidades esperadas bajo un modelo de ensamblaje completamente aleatorio de la comunidad. Los análisis mostraron que tan sólo la diversidad de tamaños foliares siguió el patrón de variación esperado, disminuyendo a medida que aumentó el estrés abiótico mientras que ni el resto de rasgos funcionales ni la diversidad funcional multivariada ni la diversidad filogenética mostraron una variación significativa a lo largo del gradiente ambiental. Un tercer tema fue evaluar si los procesos que organizan la estructura funcional de la comunidad operan a diferentes escalas espaciales. Para ello cartografié todos los árboles y arbustos de más de 5 cm de diámetro en una parcela de 9 Ha de bosque seco y caractericé funcionalmente todas las especies. Dicha parcela fue dividida en subparcelas de diferente tamaño, obteniéndose subparcelas a seis escalas espaciales distintas. Los resultados muestran agregación de estrategias funcionales semejantes a escalas pequeñas, lo que sugiere la existencia bien de filtros ambientales actuando a escala fina o bien de procesos competitivos que igualan la estrategia óptima a dichas escalas. Finalmente con la misma información de la parcela permanente de 9 Ha. Nos propusimos evaluar el efecto y comportamiento de las especies respecto a la organización de la diversidad taxonómica, funcional y filogenética. Para ello utilicé tres funciones sumario espaciales: ISAR- para el nivel taxonómico, IFDAR para el nivel funcional y IPSVAR para el nivel filogenética y las contrastamos frente a modelos nulos que describen la distribución espacial de las especies individuales. Los resultados mostraron que en todas las escalas espaciales consideradas para ISAR, IFDAR y IPSVAR, la mayoría de las especies se comportaron como neutras, es decir, que están rodeados por la riqueza de diversidad semejante a la esperada. Sin embargo, algunas especies aparecieron como acumuladoras de diversidad funcional y filogenética, lo que sugiere su implicación en procesos competitivos de limitación de la semejanza. Una pequeña proporción de las especies apareció como repelente de la diversidad funcional y filogenética, lo que sugiere su implicación en un proceso de filtrado de hábitat. En este estudio pone de relieve cómo el análisis de las dimensiones alternativas de la biodiversidad, como la diversidad funcional y filogenética, puede ayudarnos a entender la co-ocurrencia de especies en diversos ensambles de comunidad. Todos los resultados de este estudio aportan nuevas evidencias de los procesos de ensamblaje de la comunidad de los Bosques Estacionalmente secos y como las variables ambientales y la competencia juegan un papel importante en la estructuración de la comunidad. ABSTRACT The traditional concept of the rules assembly for species communities reflects the idea that species do not co-occur at random but are restricted in their co-occurrence by interspecific competition or an environmental filter. In this thesis, I addressed the importance of the se processes in the assembly of plant communities in the dry forests of southern Ecuador. This study was conducted in the biogeographic region of Tumbesina has the largest concentration of well-conserved tropical dry forests of southern Ecuador, and is recognized as one of the most important areas of endemism in the world. The climate is characterized by a dry season from May to December and a rainy season from January to April. The annual temperature varies between 20 ° C and 26 ° C and an average annual rainfall between 300 and 700 mm. I first assessed whether the distribution of functional traits at the level of the community is compatible with the existence of an environmental filter (imposed by habitat) or the existence of a limitation on functional similarity imposed by interspecific competition. This analysis was conducted for 58 species of woody plants spread over 109 plots of 10 x 50 m. Specifically, I compared the distribution of values of five functional traits (maximum height, wood density, specific leaf area, leaf size and mass of the seed), via selected statistical properties (range, variance, kurtosis and analyzed the standard deviation of the distribution of the closest functional species) distances and compared with a expected distribution under a null model of no competition. The results support that both environmental filtering and a limitation on trait similarity affect the assembly of plant communities in dry forests Tumbesina. My second chapter evaluated whether variation in functional diversity is conditioned by environmental gradients. In particular, I tested whether it decreases in the most stressful environments because of environmental filters, or if, on the contrary, functional diversity is greater in more benign environments where competition becomes more important (notwithstanding possible changes to this general pattern due to facilitation). To address this theme I analyzed changes in both the functional diversity (maximum height, wood density, specific leaf area, leaf size and mass of the seed) and the phylogenetic diversity, along a gradient of climatic stress in Tumbes forests. The observed patterns of variation were contrasted against the diversity expected under a completely random null model of community assembly. Only the diversity of leaf sizes followed the hypothesis decreasing in as trait variation abiotic stress increased, while the other functional traits multivariate functional diversity and phylogenetic diversity no showed significant variation along the environmental gradient. The third theme assess whether the processes that organize the functional structure of the community operate at different spatial scales. To do this I mapped all the trees and shrubs of more than 5 cm in diameter within a plot of 9 hectares of dry forest and functionally classified each species. The plot was divided into subplots of different sizes, obtaining subplots of six different spatial scales. I found aggregation of similar functional strategies at small scales, which may indicate the existence of environmental filters or competitive processes that correspond to the optimal strategy for these fine scales. Finally, with the same information from the permanent plot of 9 ha, I evaluated the effect and behavior of individual species on the organization of the taxonomic, functional and phylogenetic diversity. The analysis comprised three spatial summary functions: ISAR- for taxonomic level analysis, IFDAR for functional level analysis, and IPSVAR for phylogenetic level analysis, in each case the pattern of diversity was contrasted against null models that randomly reallocate describe the spatial distribution of individual species and their traits. For all spatial scales considering ISAR, IFDAR and IPSVAR, most species behaved as neutral, i.e. they are surrounded by the diversity of other traits similar to that expected under a null model. However, some species appeared as accumulator of functional and phylogenetic diversity, suggesting that they may play a role in competitive processes that limiting similarity. A small proportion of the species appeared as repellent of functional and phylogenetic diversity, suggesting their involvement in a process of habitat filtering. These analysis highlights that the analysis of alternative dimensions of biodiversity, such as functional and phylogenetic diversity, can help us understand the co-occurrence of species in the assembly of biotic communities. All results of this study provide further evidence of the processes of assembly of the community of the seasonally dry forests as environmental variables and competition play an important role in structuring the community.

Published
2022

9. Surface indicators are correlated with soil multifunctionality in global drylands

Author

Universidad de Alicante. Departamento de Ecología, Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio "Ramón Margalef", Delgado‐Baquerizo, Manuel, Quero Pérez, José Luis, Ochoa, Victoria, Gozalo, Beatriz, García‐Palacios, Pablo, Escolar, Cristina, García‐Gómez, Miguel, Prina, Aníbal O., Bowker, Mathew A., Bran, Donaldo E., Castro, Ignacio, Cea, Alex, Derak, Mchich, Espinosa, Carlos Iván, Florentino, Adriana, Gaitán, Juan J., Gatica, Gabriel, Gómez‐González, Susana, Ghiloufi, Wahida, Gutiérrez, Julio R., Gusmán-Montalván, Elizabeth, Hernández, Rosa M., Hughes, Frederic M., Muiño, Walter, Monerris, Jorge, Ospina, Abelardo, Ramírez, David A., Ribas‐Fernández, Yanina A., Romão, Roberto L., Torres‐Díaz, Cristian, Koen, Terrance B., Maestre, Fernando T., Universidad de Alicante. Departamento de Ecología, Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio "Ramón Margalef", Delgado‐Baquerizo, Manuel, Quero Pérez, José Luis, Ochoa, Victoria, Gozalo, Beatriz, García‐Palacios, Pablo, Escolar, Cristina, García‐Gómez, Miguel, Prina, Aníbal O., Bowker, Mathew A., Bran, Donaldo E., Castro, Ignacio, Cea, Alex, Derak, Mchich, Espinosa, Carlos Iván, Florentino, Adriana, Gaitán, Juan J., Gatica, Gabriel, Gómez‐González, Susana, Ghiloufi, Wahida, Gutiérrez, Julio R., Gusmán-Montalván, Elizabeth, Hernández, Rosa M., Hughes, Frederic M., Muiño, Walter, Monerris, Jorge, Ospina, Abelardo, Ramírez, David A., Ribas‐Fernández, Yanina A., Romão, Roberto L., Torres‐Díaz, Cristian, Koen, Terrance B., and Maestre, Fernando T.

Abstract

1. Multiple ecosystem functions need to be considered simultaneously to manage and protect the several ecosystem services that are essential to people and their environments. Despite this, cost effective, tangible, relatively simple and globally relevant methodologies to monitor in situ soil multifunctionality, that is, the provision of multiple ecosystem functions by soils, have not been tested at the global scale. 2. We combined correlation analysis and structural equation modelling to explore whether we could find easily measured, field‐based indicators of soil multifunctionality (measured using functions linked to the cycling and storage of soil carbon, nitrogen and phosphorus). To do this, we gathered soil data from 120 dryland ecosystems from five continents. 3. Two soil surface attributes measured in situ (litter incorporation and surface aggregate stability) were the most strongly associated with soil multifunctionality, even after accounting for geographic location and other drivers such as climate, woody cover, soil pH and soil electric conductivity. The positive relationships between surface stability and litter incorporation on soil multifunctionality were greater beneath the canopy of perennial vegetation than in adjacent, open areas devoid of vascular plants. The positive associations between surface aggregate stability and soil functions increased with increasing mean annual temperature. 4. Synthesis and applications. Our findings demonstrate that a reduced suite of easily measured in situ soil surface attributes can be used as potential indicators of soil multifunctionality in drylands world‐wide. These attributes, which relate to plant litter (origin, incorporation, cover), and surface stability, are relatively cheap and easy to assess with minimal training, allowing operators to sample many sites across widely varying climatic areas and soil types. The correlations of these variables are comparable to the influence of climate or soil, and would all

Published
2020

10. Surface indicators are correlated with soil multifunctionality in global drylands

Author

Eldridge, David J., primary, Delgado‐Baquerizo, Manuel, additional, Quero, José L., additional, Ochoa, Victoria, additional, Gozalo, Beatriz, additional, García‐Palacios, Pablo, additional, Escolar, Cristina, additional, García‐Gómez, Miguel, additional, Prina, Aníbal, additional, Bowker, Mathew A., additional, Bran, Donaldo E., additional, Castro, Ignacio, additional, Cea, Alex, additional, Derak, Mchich, additional, Espinosa, Carlos I., additional, Florentino, Adriana, additional, Gaitán, Juan J., additional, Gatica, Gabriel, additional, Gómez‐González, Susana, additional, Ghiloufi, Wahida, additional, Gutierrez, Julio R., additional, Gusmán-Montalván, Elizabeth, additional, Hernández, Rosa M., additional, Hughes, Frederic M., additional, Muiño, Walter, additional, Monerris, Jorge, additional, Ospina, Abelardo, additional, Ramírez, David A., additional, Ribas‐Fernández, Yanina A., additional, Romão, Roberto L., additional, Torres‐Díaz, Cristian, additional, Koen, Terrance B., additional, and Maestre, Fernando T., additional

Published
2020
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12. Efecto del gradiente altitudinal sobre las reservas de carbono y nitrógeno del suelo en un matorral seco en Ecuador

Author

Solano Pinzon, Miller Hernando, Ramón Contento, Pablo Ancelmo, Gusmán Montalván, Elizabeth Del carmen, Burneo Valdivieso, Juan Ignacio, Jiménez Alvarez, Leticia Salome, Quichimbo Miguitama, Pablo Geovanny, Solano Pinzon, Miller Hernando, Ramón Contento, Pablo Ancelmo, Gusmán Montalván, Elizabeth Del carmen, Burneo Valdivieso, Juan Ignacio, Jiménez Alvarez, Leticia Salome, and Quichimbo Miguitama, Pablo Geovanny

Abstract

The study of the distribution and reserves of carbon (C) and nitrogen (N) in the soil is of crucial importance for all terrestrial ecosystems, particularly in dry mountain areas where there is a high spatial heterogeneity due to the differences in soils, climate and vegetation along altitudinal gradients. The objective of this investigation was to determine if altitude affects the soil C and N reserves of a neotropical dry scrub ecosystem in the south of Ecuador. We selected an altitudinal transect ranging from 1200 to 1800 m a.s.l. where eight plots were sampled at two depths (0-10 and 10-20 cm). The results show that the reserves of C and N varied along the altitudinal gradient, with the highest values sampled at 1800 m a.s.l. and the lowest at 1200 m a.s.l. This variation in the reserves is mainly related to the decrease in temperature and the increase in precipitation with altitude, as at higher elevations decomposition rates of organic matter is usually slower. Our results suggest that elevation should be included in models and esti- mates of reserves of C and N at a local and regional scale in this type of ecosystem, which would allow identifying the most vulnerable areas to the effects of climate change. In addition, the information generated in this study could be useful to assign conservation priorities to this type of ecosystem. Overall, our results contribute and add information to the scarce literature found on the C and N in these arid ecosystems of Ecuador.

Published
2018

13. Intraspecific interactions affect the spatial pattern of a dominant shrub in a semiarid shrubland: A prospective approach.

Author

Espinosa, Carlos I., Vélez‐Mora, Diego P., Ramón, Pablo, Gusmán‐Montalván, Elizabeth, Duncan, David H., and Quintana‐Ascencio, Pedro F.

Subjects
POPULATION dynamics, VITAL statistics, PLANT populations, PHYTOGEOGRAPHY, DEMOGRAPHY, SHRUBS
Abstract

Dispersal, physical conditions and biotic interactions contribute to determine the spatial distribution of individuals in plant populations. Much of what we know has been learned from studies that retrospectively posit mechanisms presumed to have generated the observed spatial patterns. Here we present a prospective approach. We start by measuring spatial demographic effects and evaluate if they can generate observed spatial patterns. We evaluated the influence of interactions among conspecifics on vital rates, demography and spatial distribution of Croton aff. wagneri, a dominant shrub in dry Andean ecosystems. Recruitment, survival and growth varied in relation with distance to conspecifics neighbours and with their summed cover. We built a spatial individual‐based model and simulated its population dynamics in 30 × 30 m plots for a 30‐year period. We compared the predicted spatial pattern from these demographic models with that observed among plants in 16 independent plots with the same area. Simulated populations mimicked observed spatial patterns, although in plots at high elevations the simulated populations did not reproduce the observed inhibition at small scales. Observed and simulated patterns indicated differences between elevations in maximum aggregation and location of the distances with higher aggregation. We discuss how consideration of critical seed and juvenile stages and interspecific interactions could further improve our understanding of spatial pattern and recommend that these factors be considered in future models. We developed a prospective approach to evaluate the influence of interactions among conspecifics on vital rates, demography and spatial distribution of Croton aff. wagneri, a dominant shrub in dry Andean ecosystems. We built a spatial individual‐based model and simulated its population dynamics to compare predicted spatial pattern from demographic models with that observed among plants in 16 independent plots. Simulated populations mimicked observed spatial patterns, although in plots at high elevations the simulated populations did not reproduce the observed inhibition at small scales. [ABSTRACT FROM AUTHOR]

Published
2019
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15. Grazing and ecosystem service delivery in global drylands

Author

Maestre, Fernando T., Le Bagousse-Pinguet, Yoann, Delgado-Baquerizo, Manuel, Eldridge, David J., Saiz, Hugo, Berdugo, Miguel, Gozalo, Beatriz, Ochoa, Victoria, Guirado, Emilio, García-Gómez, Miguel, Valencia, Enrique, Gaitán, Juan J., Asensio, Sergio, Mendoza, Betty J., Plaza, César, Díaz-Martínez, Paloma, Rey, Ana, Hu, Hang-Wei, He, Ji-Zheng, Wang, Jun-Tao, Lehmann, Anika, Rillig, Matthias C., Cesarz, Simone, Eisenhauer, Nico, Martínez-Valderrama, Jaime, Moreno-Jiménez, Eduardo, Sala, Osvaldo, Abedi, Mehdi, Ahmadian, Negar, Alados, Concepción L., Aramayo, Valeria, Amghar, Fateh, Arredondo, Tulio, Ahumada, Rodrigo J., Bahalkeh, Khadijeh, Ben Salem, Farah, Blaum, Niels, Boldgiv, Bazartseren, Bowker, Matthew A., Bran, Donaldo, Bu, Chongfeng, Canessa, Rafaella, Castillo-Monroy, Andrea P., Castro, Helena, Castro, Ignacio, Castro-Quezada, Patricio, Chibani, Roukaya, Conceição, Abel A., Currier, Courtney M., Darrouzet-Nardi, Anthony, Deák, Balázs, Donoso, David A., Dougill, Andrew J., Durán, Jorge, Erdenetsetseg, Batdelger, Espinosa, Carlos I., Fajardo, Alex, Farzam, Mohammad, Ferrante, Daniela, Frank, Anke S. K., Fraser, Lauchlan H., Gherardi, Laureano A., Greenville, Aaron C., Guerra, Carlos A., Gusmán-Montalvan, Elizabeth, Hernández-Hernández, Rosa M., Hölzel, Norbert, Huber-Sannwald, Elisabeth, Hughes, Frederic M., Jadán-Maza, Oswaldo, Jeltsch, Florian, Jentsch, Anke, Kaseke, Kudzai F., Köbel, Melanie, Koopman, Jessica E., Leder, Cintia V., Linstädter, Anja, le Roux, Peter C., Li, Xinkai, Liancourt, Pierre, Liu, Jushan, Louw, Michelle A., Maggs-Kölling, Gillian, Makhalanyane, Thulani P., Issa, Oumarou Malam, Manzaneda, Antonio J., Marais, Eugene, Mora, Juan P., Moreno, Gerardo, Munson, Seth M., Nunes, Alice, Oliva, Gabriel, Oñatibia, Gastón R., Peter, Guadalupe, Pivari, Marco O. D., Pueyo, Yolanda, Quiroga, R. Emiliano, Rahmanian, Soroor, Reed, Sasha C., Rey, Pedro J., Richard, Benoit, Rodríguez, Alexandra, Rolo, Víctor, Rubalcaba, Juan G., Ruppert, Jan C., Salah, Ayman, Schuchardt, Max A., Spann, Sedona, Stavi, Ilan, Stephens, Colton R. A., Swemmer, Anthony M., Teixido, Alberto L., Thomas, Andrew D., Throop, Heather L., Tielbörger, Katja, Travers, Samantha, Val, James, Valkó, Orsolya, van den Brink, Liesbeth, Ayuso, Sergio Velasco, Velbert, Frederike, Wamiti, Wanyoike, Wang, Deli, Wang, Lixin, Wardle, Glenda M., Yahdjian, Laura, Zaady, Eli, Zhang, Yuanming, Zhou, Xiaobing, Singh, Brajesh K., Gross, Nicolas, Universidad de Alicante, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), University of New South Wales [Sydney] (UNSW), University of Zaragoza - Universidad de Zaragoza [Zaragoza], Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Université d'Alicante, Espagne (UA), Universidad Politécnica de Madrid (UPM), Chinese Academy of Agricultural Sciences (CAAS), Université Clermont Auvergne (UCA), Unité Mixte de Recherche sur l'Ecosystème Prairial - UMR (UREP), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), European Research Council, Generalitat Valenciana, Alexander von Humboldt Foundation, German Centre for Integrative Biodiversity Research, German Research Foundation, European Commission, Asia Foundation, Fundação para a Ciência e a Tecnologia (Portugal), Ministerio de Ciencia e Innovación (España), Comunidad de Madrid, Northern Arizona University, Consejo Nacional de Ciencia y Tecnología (México), Ministério da Ciência, Tecnologia e Inovação (Brasil), National Science Foundation (US), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil), National Research Foundation (South Africa), Federal Ministry of Education and Research (Germany), Natural Sciences and Engineering Research Council of Canada, Australian Research Council, Agencia Estatal de Investigación (España), Junta de Andalucía, National Natural Science Foundation of China, Universidad Nacional de Río Negro, Junta de Extremadura, Ferdowsi University of Mashhad, Environmental Investment Fund of Namibia, Taylor Family Foundation, Maestre, Fernando T., Delgado-Baquerizo, Manuel, Eldridge, David J., Sáiz, Hugo, Berdugo, Miguel, Gozalo, Beatriz, Ochoa, Victoria, Guirado, Emilio, García-Gómez, Miguel, Valencia, Enrique, Gaitán, Juan J., Deák, Balázs, Donoso, David, Dougill, Andrew, Erdenetsetseg, Batdegleg, Espinosa, Carlos Iván, Fajardo, Alex, Farzam, Mohammad, Ferrante, Daniela, Frank, Anke S. K., fraser, Lauchlan, Jeltsch, Florian, Gherardi, Laureano, Greenville, Aaron, Guerra, Carlos A., Gusmán Montalván, Elizabeth, Hernández Hernández, Rosa M., Huber-Sannwald, E., Hughes, Frederic M., Jadán-Maza, O., Jentsch, Anke, Kaseke, Kudzai Farai, Köbel, Melanie, Koopman, Jesica E., Leder, Cintia, Linstädter, Anja, Le Roux, Peter C., Liancourt, Pierre, Liu, Jushan, Munson, Seth M., Low, Michelle A., Maggs Kölling, Gillian, Makhalanyane, Thulani P.7, Malam Issa, Oumarou7, Manzaneda, Antonio J., Marais, Eugene, Mora, Juan P., Moreno, Gerardo, Nunes, Alice, Oliva, Gabriel, Oñatibia, Gastón, Peter, Guadalupe, Pivari, Marco O. D., Pueyo, Yolanda, Quiroga, R Emiliano, Reed, Sasha C., Rey, P.J., Teixido, Alberto L., Richard, Benoit, Rodríguez, Alexandra, Rolo, Víctor, Rubalcaba, Juan G., Salah, Ayman, Stavi, Ilan, Stephens, Colton R. A., Swemmer, Anthony, Thomas, Andrew, Throop, Heather L., Travers, Samantha, Val, James, Valkó, Orsolya, van den Brink, Liesbeth, Velasco Ayuso, Sergio, Velbert, Frederike, Wamiti, Wanyoike, Asencio, Sergio, Wang, Deli, Wang, Lixin, Wardle, Glenda M., Yahdjian, Laura, Zaady, Eli, Yuanming, Zhang, Singh, Brajesh K., Gross, Nicolas, Mendoza, Betty J., Plaza de Carlos, César, Rey, Ana, Hu, Hang-Wei, He, Ji-Zheng, Wang, Jun-Tao, Lehmann, Anika, Rillig, Matthias C., Cesarz, Simone, Eisenhauer, Nico, Martínez-Valderrama, Jaime, Moreno-Jiménez, Eduardo, Salas, O., Abedi, Mehdi, Ahmadian , Negar, Alados, Concepción L., Aramayo, Valeria, Amghar, Fateh, Arredondo, Tulio, Ahumada, Rodrigo J., Bahalkeh, Khadijeh, Salem, Farah Ben, Blaum, Niels, Boldgiv, Bazartseren, Browker, Matthew A., Bran, Donaldo, Bu, Chongfeng, Canessa, Rafaella, Castro, Helena, Castro, Ignacio, Castro-Quezada, Patricio, Conceição, Abel A., Currier, Courtney M., Darrouzet-Nardi, Anthony, Universidad de Alicante. Departamento de Ecología, Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio 'Ramón Margalef', Laboratorio de Ecología de Zonas Áridas y Cambio Global (DRYLAB), Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Universidad Rey Juan Carlos [Madrid] (URJC), Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC), La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Repositório da Universidade de Lisboa

Subjects
Livestock, Multidisciplinary, Climate Change, Drylands, Systems, Wild, Biodiversity, 580 Plants (Botany), Soil, Grazing, [SDE]Environmental Sciences, Ecosystem services, Herbivory, Rangeland
Abstract

7 páginas.- 4 figuras.- 32 referencias.- Supplementary materials: science.org/doi/10.1126/science.abq4062 Materials and Methods Figs. S1 to S19 Tables S1 to S28 References (33–269) MDAR Reproducibility Checklist Movie S1.- Grazing represents the most extensive use of land worldwide. Yet its impacts on ecosystem services remain uncertain because pervasive interactions between grazing pressure, climate, soil properties, and biodiversity may occur but have never been addressed simultaneously. Using a standardized survey at 98 sites across six continents, we show that interactions between grazing pressure, climate, soil, and biodiversity are critical to explain the delivery of fundamental ecosystem services across drylands worldwide. Increasing grazing pressure reduced ecosystem service delivery in warmer and speciespoor drylands, whereas positive effects of grazing were observed in colder and species-rich areas. Considering interactions between grazing and local abiotic and biotic factors is key for understanding the fate of dryland ecosystems under climate change and increasing human pressure. Copyright © 2022 the authors, Grazing represents the most extensive use of land worldwide. Yet its impacts on ecosystem services remain uncertain because pervasive interactions between grazing pressure, climate, soil properties, and biodiversity may occur but have never been addressed simultaneously. Using a standardized survey at 98 sites across six continents, we show that interactions between grazing pressure, climate, soil, and biodiversity are critical to explain the delivery of fundamental ecosystem services across drylands worldwide. Increasing grazing pressure reduced ecosystem service delivery in warmer and species-poor drylands, whereas positive effects of grazing were observed in colder and species-rich areas. Considering interactions between grazing and local abiotic and biotic factors is key for understanding the fate of dryland ecosystems under climate change and increasing human pressure. Copyright © 2022 the authors, Funding: This research was funded by the European Research Council [ERC grant agreement 647038 (BIODESERT)] and Generalitat Valenciana (CIDEGENT/2018/ 041). F.T.M. acknowledges support from a Rei Jaume I Award, the Alexander von Humboldt Foundation, and the Synthesis Center (sDiv) of the German Centre for Integrative Biodiversity Research Halle–Jena–Leipzig (iDiv). C.A.G., S.C., and N.E. acknowledge support from iDiv and the Deutsche Forschungsgemeinschaft (DFG– FZT 118, 202548816; Flexpool proposal 34600850). Y.L.B.-P. was supported by a Marie Sklodowska-Curie Actions Individual Fellowship (MSCA-IF) within the European Program Horizon 2020 (DRYFUN Project 656035). N.G. was supported by CAP 20-25 (16-IDEX-0001) and the AgreenSkills+ fellowship program, which has received funding from the EU’s Seventh Framework Programme under grant agreement N° FP7-609398 (AgreenSkills+ contract). B.B. and B.E. were supported by the Taylor Family–Asia Foundation Endowed Chair in Ecology and Conservation Biology. J.D., A.Ro., and H.C. acknowledge support from the Fundação para a Ciência e a Tecnologia (IF/00950/ 2014 and 2020.03670.CEECIND, SFRH/BDP/108913/2015, and in the scope of the framework contract foreseen in the numbers 4-6 of the article 23, of the Decree-Law 57/2016, August 29, changed by Law 57/2017, July 19, respectively), as well as from the MCTES, FSE, UE, and the CFE (UIDB/04004/2020) research unit financed by Fundação para a Ciência e a Tecnologia/MCTES through national funds (PIDDAC). C.P. acknowledges support from the Spanish Ministry of Science and Innovation (ref. AGL201675762-R, AEI/FEDER, UE, and PID2020-116578RB-I00, MCIN/AEI/10.13039/501100011033) and the European Union’s Horizon 2020 Research and Innovation Programme under grant agreement no. 101000224. E.V. was funded by the 2017 program for attracting and retaining talent of Comunidad de Madrid (no. 2017‐T2/ AMB‐5406). M.A.B. acknowledges support from the School of Forestry and College of the Environment, Forestry and Natural Sciences of Northern Arizona University. E.H.-S. acknowledges support from the Consejo Nacional de Ciencia y Tecnología (SEP-CB-2015-01-251388, PN 2017-5036 and PRONAII 319059). F.M.H. acknowledges support from the National Council for Scientific and Technological Development (CNPq - PCI/INMA) of the Brazilian Ministry of Science, Technology and Innovation (MCTI, processes number 302381/2020-1). H.L.T. acknowledges support from the US National Science Foundation (NSF) (DEB 0953864). A.N. and M.K. acknowledge support from the Fundação para a Ciência e a Tecnologia (SFRH/BD/130274/2017, CEECIND/02453/2018/CP1534/CT0001, PTDC/ASP-SIL/7743/2020 and UIDB/00329/2020). A.A.C. acknowledges support from the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001. J.E.K. and T.P.M. acknowledge the National Research Foundation of South Africa (grant no. 114412). F.J. and N.B. acknowledge support from the German Federal Ministry of Education and Research (BMBF) in the framework of the SPACES projects OPTIMASS (FKZ: 01LL1302A) and ORYCS (FKZ:01LL1804A). A.Li. and A.S.K.F. acknowledge support from the German Federal Ministry of Education and Research (BMBF) in the framework of the SPACES projects Limpopo Living Landscapes (FKZ: 01LL1304D) and SALLnet (FKZ: 01LL1802C). L.W. acknowledges support from the US NSF (EAR 1554894). L.H.F. acknowledges support from the Natural Sciences and Engineering Research Council of Canada Industrial Research Chair Program in Ecosystem Reclamation. S.C.R. acknowledges support from the US Geological Survey Ecosystems Mission Area and the US Bureau of Land Management. G.M.W. acknowledges support from the Australian Research Council. L.v.d.B. and K.T. acknowledge support from the German Research Foundation (DFG) priority research program SPP-1803 “EarthShape: Earth Surface Shaping by Biota” (TI 338/14-1). M.D.-B. acknowledges support from the Spanish Ministry of Science and Innovation for the I+D+i project PID2020-115813RA-I00 funded by MCIN/AEI/10.13039/501100011033. M.D.-B. is also supported by a project of the Fondo Europeo de Desarrollo Regional (FEDER) and the Consejería de Transformación Económica, Industria, Conocimiento y Universidades of the Junta de Andalucía (FEDER Andalucía 2014-2020 Objetivo temático “01 - Refuerzo de la investigación, el desarrollo tecnológico y la innovación”) associated with the research project P20_00879 (ANDABIOMA). P.J.R. and A.J.M. acknowledge support from Fondo Europeo de Desarrollo Regional through the FEDER Andalucía operative program, FEDER-UJA 1261180 project. A.F. thanks ANID PIA/BASAL FB210006 and Millennium Science Initiative Program NCN2021-050. A.J. acknowledges support from the Bavarian Research Alliance Germany (BayIntAn_UBT_2017_61). C.B. acknowledges the National Natural Science Foundation of China (grant no. 41971131). Biodiversity and ecosystem function research in the B.K.S. laboratory is funded by the Australian Research Council (DP210102081). Any use of trade, product, or firm names in this paper is for descriptive purposes only and does not imply endorsement by the US government. H.S. is supported by a María Zambrano fellowship funded by the Ministry of Universities and European Union-Next Generation plan. G.P. and C.V.L. acknowledge support from Universidad Nacional de Río Negro (PI 40-C-873 and 654). V.R. acknowledges support from the Regional Government of Extremadura (Spain) through a “Talento” fellowship (TA18022). M.F. acknowledges support from the Department of Range and Watershed Management, Ferdowsi University of Mashhad, Mashhad, Iran. Participation of recent graduates in collecting field data at four sites in Namibia was supported by a capacity building grant to Gobabeb–Namib Research Institute by the Environmental Investment Fund in Namibia.

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2022

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