Richness, not evenness, varies across water availability gradients in grassy biomes on five continents

Autores: Smith, Melinda D.; Koerner, Sally E.; Avolio, Meghan L.; Komatsu, Kimberly J.; Eby, Stephanie; Forrestel, Elisabeth J.; Collins, Scott L.; Wilcox, Kevin R.; Ahumada, Rodrigo José; Morgan, John W.; Oliva, Gabriel Esteban; Oñatibia, Gaston Rafael; Overbeck, Gerhard E.; Peter, Guadalupe; Quiroga, Raul Emiliano; Sankaran, Mahesh; Wu, Jianshuang; Yahdjian, Laura; Yu, Qiang
Año de publicación: 2022
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: We sought to understand the role that water availability (expressed as an aridity index) plays in determining regional and global patterns of richness and evenness, and in turn how these water availability–diversity relationships may result in different richness–evenness relationships at regional and global scales. We examined relationships between water availability, richness and evenness for eight grassy biomes spanning broad water availability gradients on five continents. Our study found that relationships between richness and water availability switched from positive for drier (South Africa, Tibet and USA) vs. negative for wetter (India) biomes, though were not significant for the remaining biomes. In contrast, only the India biome showed a significant relationship between water availability and evenness, which was negative. Globally, the richness–water availability relationship was hump-shaped, however, not significant for evenness. At the regional scale, a positive richness– evenness relationship was found for grassy biomes in India and Inner Mongolia, China. In contrast, this relationship was weakly concave-up globally. These results suggest that different, independent factors are determining patterns of species richness and evenness in grassy biomes, resulting in differing richness–evenness relationships at regional and global scales. As a consequence, richness and evenness may respond very differently across spatial gradients to anthropogenic changes, such as climate change.
EEA Catamarca
Fil: Smith, Melinda D. Colorado State University. Department of Biology; Estados Unidos
Fil: Smith, Melinda D. Colorado State University. Graduate Degree Program in Ecology; Estados Unidos
Fil: Koerner, Sally E. University of North Carolina Greensboro. Department of Biology; Estados Unidos
Fil: Avolio, Meghan L. Johns Hopkins University. Morton K. Blaustein Department of Earth and Planetary Sciences; Estados Unidos
Fil: Komatsu, Kimberly J. Smithsonian Environmental Research Center; Estados Unidos
Fil: Eby, Stephanie. Northeastern University. Department of Marine and Environmental Sciences; Estados Unidos
Fil: Forrestel, Elisabeth J. University of California. Department of Viticulture and Enology; Estados Unidos
Fil: Collins, Scott L. University of New Mexico. Department of Biology; Estados Unidos
Fil: Wilcox, Kevin R. University of Wyoming. Department of Ecosystem Science and Management; Estados Unidos
Fil: Ahumada, Rodrigo José. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; Argentina
Fil: Morgan, John W. La Trobe University. Department of Ecology, Environment and Evolution; Australia
Fil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina
Fil: Oñatibia, Gastón R. Universidad de Buenos Aires (UBA). Facultad da Agronomía. Cátedra de Ecología; Argentina
Fil: Oñatibio, Gastón R. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA); Argentina
Fil: Overbeck, Gerhard E. Universidade Federal do Rio Grande do Sul. Department of Botany; Brasil
Fil: Peter, Guadalupe. Universidad Nacional de Río Negro (UNRN). Centro de Estudios Ambientales desde la NorPatagonia; Argentina
Fil: Peter, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina
Fil: Quiroga, Raul Emiliano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; Argentina
Fil: Quiroga, Raul Emiliano. Universidad Nacional de Catamarca (UNCa). Facultad de Ciencias Agrarias; Argentina
Fil: Sankaran, Mahesh. National Centre for Biological Sciences. Ecology & Evolution Group. TIFR; India
Fil: Sankaran, Mahesh. University of Leeds. School of Biology; Reino Unido
Fil: Wu, Jianshuang. Chinese Academy of Agricultural Sciences. Institute of Environment and Sustainable Development in Agriculture; China
Fil: Yahdjian, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina.
Fil: Yahdjian, Laura. Universidad de Buenos Aires (UBA). Facultad da Agronomía. Cátedra de Ecología; Argentina
Fil: Yahdjian, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA); Argentina
Fil: Yu, Qiang. Beijing Forestry University. School of Grassland Science, China
Fuente: Oecologia 199 : 649–659 (Julio 2022)
Materia: Disponibilidad del Agua
Índice de Sequía
Clima
Biodiversidad
Praderas
Water Availability
Drought Index
Climate
Biodiversity
Grasslands
Nivel de accesibilidad: acceso restringido
Condiciones de uso: http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
Institución: Instituto Nacional de Tecnología Agropecuaria
OAI Identificador: oai:localhost:20.500.12123/28229

Acceder

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spelling	Richness, not evenness, varies across water availability gradients in grassy biomes on five continentsSmith, Melinda D.Koerner, Sally E.Avolio, Meghan L.Komatsu, Kimberly J.Eby, StephanieForrestel, Elisabeth J.Collins, Scott L.Wilcox, Kevin R.Ahumada, Rodrigo JoséMorgan, John W.Oliva, Gabriel EstebanOñatibia, Gaston RafaelOverbeck, Gerhard E.Peter, GuadalupeQuiroga, Raul EmilianoSankaran, MaheshWu, JianshuangYahdjian, LauraYu, QiangDisponibilidad del AguaÍndice de SequíaClimaBiodiversidadPraderasWater AvailabilityDrought IndexClimateBiodiversityGrasslandsWe sought to understand the role that water availability (expressed as an aridity index) plays in determining regional and global patterns of richness and evenness, and in turn how these water availability–diversity relationships may result in different richness–evenness relationships at regional and global scales. We examined relationships between water availability, richness and evenness for eight grassy biomes spanning broad water availability gradients on five continents. Our study found that relationships between richness and water availability switched from positive for drier (South Africa, Tibet and USA) vs. negative for wetter (India) biomes, though were not significant for the remaining biomes. In contrast, only the India biome showed a significant relationship between water availability and evenness, which was negative. Globally, the richness–water availability relationship was hump-shaped, however, not significant for evenness. At the regional scale, a positive richness– evenness relationship was found for grassy biomes in India and Inner Mongolia, China. In contrast, this relationship was weakly concave-up globally. These results suggest that different, independent factors are determining patterns of species richness and evenness in grassy biomes, resulting in differing richness–evenness relationships at regional and global scales. As a consequence, richness and evenness may respond very differently across spatial gradients to anthropogenic changes, such as climate change.EEA CatamarcaFil: Smith, Melinda D. Colorado State University. Department of Biology; Estados UnidosFil: Smith, Melinda D. Colorado State University. Graduate Degree Program in Ecology; Estados UnidosFil: Koerner, Sally E. University of North Carolina Greensboro. Department of Biology; Estados UnidosFil: Avolio, Meghan L. Johns Hopkins University. Morton K. Blaustein Department of Earth and Planetary Sciences; Estados UnidosFil: Komatsu, Kimberly J. Smithsonian Environmental Research Center; Estados UnidosFil: Eby, Stephanie. Northeastern University. Department of Marine and Environmental Sciences; Estados UnidosFil: Forrestel, Elisabeth J. University of California. Department of Viticulture and Enology; Estados UnidosFil: Collins, Scott L. University of New Mexico. Department of Biology; Estados UnidosFil: Wilcox, Kevin R. University of Wyoming. Department of Ecosystem Science and Management; Estados UnidosFil: Ahumada, Rodrigo José. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; ArgentinaFil: Morgan, John W. La Trobe University. Department of Ecology, Environment and Evolution; AustraliaFil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; ArgentinaFil: Oñatibia, Gastón R. Universidad de Buenos Aires (UBA). Facultad da Agronomía. Cátedra de Ecología; ArgentinaFil: Oñatibio, Gastón R. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA); ArgentinaFil: Overbeck, Gerhard E. Universidade Federal do Rio Grande do Sul. Department of Botany; BrasilFil: Peter, Guadalupe. Universidad Nacional de Río Negro (UNRN). Centro de Estudios Ambientales desde la NorPatagonia; ArgentinaFil: Peter, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); ArgentinaFil: Quiroga, Raul Emiliano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; ArgentinaFil: Quiroga, Raul Emiliano. Universidad Nacional de Catamarca (UNCa). Facultad de Ciencias Agrarias; ArgentinaFil: Sankaran, Mahesh. National Centre for Biological Sciences. Ecology & Evolution Group. TIFR; IndiaFil: Sankaran, Mahesh. University of Leeds. School of Biology; Reino UnidoFil: Wu, Jianshuang. Chinese Academy of Agricultural Sciences. Institute of Environment and Sustainable Development in Agriculture; ChinaFil: Yahdjian, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina.Fil: Yahdjian, Laura. Universidad de Buenos Aires (UBA). Facultad da Agronomía. Cátedra de Ecología; ArgentinaFil: Yahdjian, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA); ArgentinaFil: Yu, Qiang. Beijing Forestry University. School of Grassland Science, ChinaSpringer2026-10-23T12:21:18Z2026-10-23T12:21:18Z2022-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/28229https://link.springer.com/article/10.1007/s00442-022-05208-60029-85491432-1939https://doi.org/10.1007/s00442-022-05208-6Oecologia 199 : 649–659 (Julio 2022)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2026-11-05T11:51:41Zoai:localhost:20.500.12123/28229instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2026-11-05 11:51:41.842INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv	Richness, not evenness, varies across water availability gradients in grassy biomes on five continents
title	Richness, not evenness, varies across water availability gradients in grassy biomes on five continents
spellingShingle	Richness, not evenness, varies across water availability gradients in grassy biomes on five continents Smith, Melinda D. Disponibilidad del Agua Índice de Sequía Clima Biodiversidad Praderas Water Availability Drought Index Climate Biodiversity Grasslands
title_short	Richness, not evenness, varies across water availability gradients in grassy biomes on five continents
title_full	Richness, not evenness, varies across water availability gradients in grassy biomes on five continents
title_fullStr	Richness, not evenness, varies across water availability gradients in grassy biomes on five continents
title_full_unstemmed	Richness, not evenness, varies across water availability gradients in grassy biomes on five continents
title_sort	Richness, not evenness, varies across water availability gradients in grassy biomes on five continents
dc.creator.none.fl_str_mv	Smith, Melinda D. Koerner, Sally E. Avolio, Meghan L. Komatsu, Kimberly J. Eby, Stephanie Forrestel, Elisabeth J. Collins, Scott L. Wilcox, Kevin R. Ahumada, Rodrigo José Morgan, John W. Oliva, Gabriel Esteban Oñatibia, Gaston Rafael Overbeck, Gerhard E. Peter, Guadalupe Quiroga, Raul Emiliano Sankaran, Mahesh Wu, Jianshuang Yahdjian, Laura Yu, Qiang
author	Smith, Melinda D.
author_facet	Smith, Melinda D. Koerner, Sally E. Avolio, Meghan L. Komatsu, Kimberly J. Eby, Stephanie Forrestel, Elisabeth J. Collins, Scott L. Wilcox, Kevin R. Ahumada, Rodrigo José Morgan, John W. Oliva, Gabriel Esteban Oñatibia, Gaston Rafael Overbeck, Gerhard E. Peter, Guadalupe Quiroga, Raul Emiliano Sankaran, Mahesh Wu, Jianshuang Yahdjian, Laura Yu, Qiang
author_role	author
author2	Koerner, Sally E. Avolio, Meghan L. Komatsu, Kimberly J. Eby, Stephanie Forrestel, Elisabeth J. Collins, Scott L. Wilcox, Kevin R. Ahumada, Rodrigo José Morgan, John W. Oliva, Gabriel Esteban Oñatibia, Gaston Rafael Overbeck, Gerhard E. Peter, Guadalupe Quiroga, Raul Emiliano Sankaran, Mahesh Wu, Jianshuang Yahdjian, Laura Yu, Qiang
author2_role	author author author author author author author author author author author author author author author author author author
dc.subject.none.fl_str_mv	Disponibilidad del Agua Índice de Sequía Clima Biodiversidad Praderas Water Availability Drought Index Climate Biodiversity Grasslands
topic	Disponibilidad del Agua Índice de Sequía Clima Biodiversidad Praderas Water Availability Drought Index Climate Biodiversity Grasslands
dc.description.none.fl_txt_mv	We sought to understand the role that water availability (expressed as an aridity index) plays in determining regional and global patterns of richness and evenness, and in turn how these water availability–diversity relationships may result in different richness–evenness relationships at regional and global scales. We examined relationships between water availability, richness and evenness for eight grassy biomes spanning broad water availability gradients on five continents. Our study found that relationships between richness and water availability switched from positive for drier (South Africa, Tibet and USA) vs. negative for wetter (India) biomes, though were not significant for the remaining biomes. In contrast, only the India biome showed a significant relationship between water availability and evenness, which was negative. Globally, the richness–water availability relationship was hump-shaped, however, not significant for evenness. At the regional scale, a positive richness– evenness relationship was found for grassy biomes in India and Inner Mongolia, China. In contrast, this relationship was weakly concave-up globally. These results suggest that different, independent factors are determining patterns of species richness and evenness in grassy biomes, resulting in differing richness–evenness relationships at regional and global scales. As a consequence, richness and evenness may respond very differently across spatial gradients to anthropogenic changes, such as climate change. EEA Catamarca Fil: Smith, Melinda D. Colorado State University. Department of Biology; Estados Unidos Fil: Smith, Melinda D. Colorado State University. Graduate Degree Program in Ecology; Estados Unidos Fil: Koerner, Sally E. University of North Carolina Greensboro. Department of Biology; Estados Unidos Fil: Avolio, Meghan L. Johns Hopkins University. Morton K. Blaustein Department of Earth and Planetary Sciences; Estados Unidos Fil: Komatsu, Kimberly J. Smithsonian Environmental Research Center; Estados Unidos Fil: Eby, Stephanie. Northeastern University. Department of Marine and Environmental Sciences; Estados Unidos Fil: Forrestel, Elisabeth J. University of California. Department of Viticulture and Enology; Estados Unidos Fil: Collins, Scott L. University of New Mexico. Department of Biology; Estados Unidos Fil: Wilcox, Kevin R. University of Wyoming. Department of Ecosystem Science and Management; Estados Unidos Fil: Ahumada, Rodrigo José. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; Argentina Fil: Morgan, John W. La Trobe University. Department of Ecology, Environment and Evolution; Australia Fil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina Fil: Oñatibia, Gastón R. Universidad de Buenos Aires (UBA). Facultad da Agronomía. Cátedra de Ecología; Argentina Fil: Oñatibio, Gastón R. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA); Argentina Fil: Overbeck, Gerhard E. Universidade Federal do Rio Grande do Sul. Department of Botany; Brasil Fil: Peter, Guadalupe. Universidad Nacional de Río Negro (UNRN). Centro de Estudios Ambientales desde la NorPatagonia; Argentina Fil: Peter, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina Fil: Quiroga, Raul Emiliano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; Argentina Fil: Quiroga, Raul Emiliano. Universidad Nacional de Catamarca (UNCa). Facultad de Ciencias Agrarias; Argentina Fil: Sankaran, Mahesh. National Centre for Biological Sciences. Ecology & Evolution Group. TIFR; India Fil: Sankaran, Mahesh. University of Leeds. School of Biology; Reino Unido Fil: Wu, Jianshuang. Chinese Academy of Agricultural Sciences. Institute of Environment and Sustainable Development in Agriculture; China Fil: Yahdjian, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Fil: Yahdjian, Laura. Universidad de Buenos Aires (UBA). Facultad da Agronomía. Cátedra de Ecología; Argentina Fil: Yahdjian, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA); Argentina Fil: Yu, Qiang. Beijing Forestry University. School of Grassland Science, China
description	We sought to understand the role that water availability (expressed as an aridity index) plays in determining regional and global patterns of richness and evenness, and in turn how these water availability–diversity relationships may result in different richness–evenness relationships at regional and global scales. We examined relationships between water availability, richness and evenness for eight grassy biomes spanning broad water availability gradients on five continents. Our study found that relationships between richness and water availability switched from positive for drier (South Africa, Tibet and USA) vs. negative for wetter (India) biomes, though were not significant for the remaining biomes. In contrast, only the India biome showed a significant relationship between water availability and evenness, which was negative. Globally, the richness–water availability relationship was hump-shaped, however, not significant for evenness. At the regional scale, a positive richness– evenness relationship was found for grassy biomes in India and Inner Mongolia, China. In contrast, this relationship was weakly concave-up globally. These results suggest that different, independent factors are determining patterns of species richness and evenness in grassy biomes, resulting in differing richness–evenness relationships at regional and global scales. As a consequence, richness and evenness may respond very differently across spatial gradients to anthropogenic changes, such as climate change.
publishDate	2022
dc.date.none.fl_str_mv	2022-07 2026-10-23T12:21:18Z 2026-10-23T12:21:18Z
dc.type.none.fl_str_mv	info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo
format	article
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dc.identifier.none.fl_str_mv	http://hdl.handle.net/20.500.12123/28229 https://link.springer.com/article/10.1007/s00442-022-05208-6 0029-8549 1432-1939 https://doi.org/10.1007/s00442-022-05208-6
url	http://hdl.handle.net/20.500.12123/28229 https://link.springer.com/article/10.1007/s00442-022-05208-6 https://doi.org/10.1007/s00442-022-05208-6
identifier_str_mv	0029-8549 1432-1939
dc.language.none.fl_str_mv	eng
language	eng
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rights_invalid_str_mv	http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
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dc.publisher.none.fl_str_mv	Springer
publisher.none.fl_str_mv	Springer
dc.source.none.fl_str_mv	Oecologia 199 : 649–659 (Julio 2022) reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str	INTA Digital (INTA)
collection	INTA Digital (INTA)
instname_str	Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv	INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv	tripaldi.nicolas@inta.gob.ar
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Richness, not evenness, varies across water availability gradients in grassy biomes on five continents

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