Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Eutrophication weakens stabilizing effects of diversity in natural grasslands
AU - Hautier, Yann
AU - Seabloom, Eric W.
AU - Borer, Elizabeth T.
AU - Adler, Peter B.
AU - Harpole, W. Stanley
AU - Hillebrand, Helmut
AU - Lind, Eric M.
AU - MacDougall, Andrew S.
AU - Stevens, Carly J.
AU - Bakker, Jonathan D.
AU - Buckley, Yvonne M.
AU - Chu, Chengjin
AU - Collins, Scott L.
AU - Daleo, Pedro
AU - Damschen, Ellen I.
AU - Davies, Kendi F.
AU - Fay, Philip A.
AU - Firn, Jennifer
AU - Gruner, Daniel S.
AU - Jin, Virginia L.
AU - Klein, Julia A.
AU - Knops, Johannes M. H.
AU - La Pierre, Kimberly J.
AU - Li, Wei
AU - McCulley, Rebecca L.
AU - Melbourne, Brett A.
AU - Moore, Joslin L.
AU - O'Halloran, Lydia R.
AU - Prober, Suzanne M.
AU - Risch, Anita C.
AU - Sankaran, Mahesh
AU - Schuetz, Martin
AU - Hector, Andy
PY - 2014/4/24
Y1 - 2014/4/24
N2 - Studies of experimental grassland communities(1-7) have demonstrated that plant diversity can stabilize productivity through species asynchrony, in which decreases in the biomass of some species are compensated for by increases in others(1,2). However, it remains unknown whether these findings are relevant to natural ecosystems, especially those for which species diversity is threatened by anthropogenic global change(8-11). Here we analyse diversity-stability relationships from 41 grasslands on five continents and examine how these relationships are affected by chronic fertilization, one of the strongest drivers of species loss globally(8). Unmanipulated communities with more species had greater species asynchrony, resulting in more stable biomass production, generalizing a result from biodiversity experiments to real-world grasslands. However, fertilization weakened the positive effect of diversity on stability. Contrary to expectations, this was not due to species loss after eutrophication but rather to an increase in the temporal variation of productivity in combination with a decrease in species asynchrony in diverse communities. Our results demonstrate separate and synergistic effects of diversity and eutrophication on stability, emphasizing the need to understand how drivers of global change interactively affect the reliable provisioning of ecosystem services in real-world systems.
AB - Studies of experimental grassland communities(1-7) have demonstrated that plant diversity can stabilize productivity through species asynchrony, in which decreases in the biomass of some species are compensated for by increases in others(1,2). However, it remains unknown whether these findings are relevant to natural ecosystems, especially those for which species diversity is threatened by anthropogenic global change(8-11). Here we analyse diversity-stability relationships from 41 grasslands on five continents and examine how these relationships are affected by chronic fertilization, one of the strongest drivers of species loss globally(8). Unmanipulated communities with more species had greater species asynchrony, resulting in more stable biomass production, generalizing a result from biodiversity experiments to real-world grasslands. However, fertilization weakened the positive effect of diversity on stability. Contrary to expectations, this was not due to species loss after eutrophication but rather to an increase in the temporal variation of productivity in combination with a decrease in species asynchrony in diverse communities. Our results demonstrate separate and synergistic effects of diversity and eutrophication on stability, emphasizing the need to understand how drivers of global change interactively affect the reliable provisioning of ecosystem services in real-world systems.
KW - ECOSYSTEM STABILITY
KW - PLANT DIVERSITY
KW - ECOLOGICAL COMMUNITIES
KW - EUROPEAN GRASSLANDS
KW - NITROGEN DEPOSITION
KW - BIODIVERSITY LOSS
KW - SPECIES RICHNESS
KW - PRODUCTIVITY
KW - LOSSES
KW - POPULATION
U2 - 10.1038/nature13014
DO - 10.1038/nature13014
M3 - Journal article
VL - 508
SP - 521
EP - 525
JO - Nature
JF - Nature
SN - 0028-0836
IS - 7497
ER -