Addition of multiple limiting resources reduces grassland diversity
Niche dimensionality provides a general theoretical explanation for biodiversity-more niches, defined by more limiting factors, allow for more ways that species can coexist. Because plant species compete for the same set of limiting resources, theory predicts that addition of a limiting resource eli...
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2016
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00280836_v537_n7618_p93_Harpole http://hdl.handle.net/20.500.12110/paper_00280836_v537_n7618_p93_Harpole |
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paper:paper_00280836_v537_n7618_p93_Harpole2023-06-08T14:54:47Z Addition of multiple limiting resources reduces grassland diversity biodiversity biological production biomass allocation coexistence competition (ecology) fertilization (reproduction) grassland niche nutrient limitation plant community species diversity Article biomass production global change grassland nutrient concentration nutrient limitation plant community priority journal species coexistence species diversity turnover time biodiversity biomass classification drug effects food growth, development and aging light metabolism plant Poaceae radiation response fertilizer Biodiversity Biomass Fertilizers Food Grassland Light Plants Poaceae Niche dimensionality provides a general theoretical explanation for biodiversity-more niches, defined by more limiting factors, allow for more ways that species can coexist. Because plant species compete for the same set of limiting resources, theory predicts that addition of a limiting resource eliminates potential trade-offs, reducing the number of species that can coexist. Multiple nutrient limitation of plant production is common and therefore fertilization may reduce diversity by reducing the number or dimensionality of belowground limiting factors. At the same time, nutrient addition, by increasing biomass, should ultimately shift competition from belowground nutrients towards a one-dimensional competitive trade-off for light. Here we show that plant species diversity decreased when a greater number of limiting nutrients were added across 45 grassland sites from a multi-continent experimental network. The number of added nutrients predicted diversity loss, even after controlling for effects of plant biomass, and even where biomass production was not nutrient-limited. We found that elevated resource supply reduced niche dimensionality and diversity and increased both productivity and compositional turnover. Our results point to the importance of understanding dimensionality in ecological systems that are undergoing diversity loss in response to multiple global change factors. © 2016 Macmillan Publishers Limited. All rights reserved. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00280836_v537_n7618_p93_Harpole http://hdl.handle.net/20.500.12110/paper_00280836_v537_n7618_p93_Harpole |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
biodiversity biological production biomass allocation coexistence competition (ecology) fertilization (reproduction) grassland niche nutrient limitation plant community species diversity Article biomass production global change grassland nutrient concentration nutrient limitation plant community priority journal species coexistence species diversity turnover time biodiversity biomass classification drug effects food growth, development and aging light metabolism plant Poaceae radiation response fertilizer Biodiversity Biomass Fertilizers Food Grassland Light Plants Poaceae |
| spellingShingle |
biodiversity biological production biomass allocation coexistence competition (ecology) fertilization (reproduction) grassland niche nutrient limitation plant community species diversity Article biomass production global change grassland nutrient concentration nutrient limitation plant community priority journal species coexistence species diversity turnover time biodiversity biomass classification drug effects food growth, development and aging light metabolism plant Poaceae radiation response fertilizer Biodiversity Biomass Fertilizers Food Grassland Light Plants Poaceae Addition of multiple limiting resources reduces grassland diversity |
| topic_facet |
biodiversity biological production biomass allocation coexistence competition (ecology) fertilization (reproduction) grassland niche nutrient limitation plant community species diversity Article biomass production global change grassland nutrient concentration nutrient limitation plant community priority journal species coexistence species diversity turnover time biodiversity biomass classification drug effects food growth, development and aging light metabolism plant Poaceae radiation response fertilizer Biodiversity Biomass Fertilizers Food Grassland Light Plants Poaceae |
| description |
Niche dimensionality provides a general theoretical explanation for biodiversity-more niches, defined by more limiting factors, allow for more ways that species can coexist. Because plant species compete for the same set of limiting resources, theory predicts that addition of a limiting resource eliminates potential trade-offs, reducing the number of species that can coexist. Multiple nutrient limitation of plant production is common and therefore fertilization may reduce diversity by reducing the number or dimensionality of belowground limiting factors. At the same time, nutrient addition, by increasing biomass, should ultimately shift competition from belowground nutrients towards a one-dimensional competitive trade-off for light. Here we show that plant species diversity decreased when a greater number of limiting nutrients were added across 45 grassland sites from a multi-continent experimental network. The number of added nutrients predicted diversity loss, even after controlling for effects of plant biomass, and even where biomass production was not nutrient-limited. We found that elevated resource supply reduced niche dimensionality and diversity and increased both productivity and compositional turnover. Our results point to the importance of understanding dimensionality in ecological systems that are undergoing diversity loss in response to multiple global change factors. © 2016 Macmillan Publishers Limited. All rights reserved. |
| title |
Addition of multiple limiting resources reduces grassland diversity |
| title_short |
Addition of multiple limiting resources reduces grassland diversity |
| title_full |
Addition of multiple limiting resources reduces grassland diversity |
| title_fullStr |
Addition of multiple limiting resources reduces grassland diversity |
| title_full_unstemmed |
Addition of multiple limiting resources reduces grassland diversity |
| title_sort |
addition of multiple limiting resources reduces grassland diversity |
| publishDate |
2016 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00280836_v537_n7618_p93_Harpole http://hdl.handle.net/20.500.12110/paper_00280836_v537_n7618_p93_Harpole |
| _version_ |
1768545317687394304 |