TY  - JOUR
A1  - Hector, Andy
A1  - Hautier, Yann
A1  - Saner, Philippe
A1  - Wacker, Lukas
A1  - Bagchi, Robert
A1  - Joshi, Jasmin Radha
A1  - Scherer-Lorenzen, Michael
A1  - Spehn, Eva M.
A1  - Bazeley-White, Ellen
A1  - Weilenmann, Markus
A1  - Caldeira, Maria da Conceição Brálio de Brito
A1  - Dimitrakopoulos, Panayiotis G.
A1  - Finn, John A.
A1  - Huss-Danell, Kerstin
A1  - Jumpponen, Ari
A1  - Mulder, Christa P. H.
A1  - Palmborg, Cecilia
A1  - Pereira, J. S.
A1  - Siamantziouras, Akis S. D.
A1  - Terry, Andrew C.
A1  - Troumbis, Andreas Y.
A1  - Schmid, Bernhard
A1  - Loreau, Michel
T1  - General stabilizing effects of plant diversity on grassland productivity through population asynchrony and overyielding
N2  - Insurance effects of biodiversity can stabilize the functioning of multispecies ecosystems against environmental variability when differential species' responses lead to asynchronous population dynamics. When responses are not perfectly positively correlated, declines in some populations are compensated by increases in others, smoothing variability in ecosystem productivity. This variance reduction effect of biodiversity is analogous to the risk- spreading benefits of diverse investment portfolios in financial markets. We use data from the BIODEPTH network of grassland biodiversity experiments to perform a general test for stabilizing effects of plant diversity on the temporal variability of individual species, functional groups, and aggregate communities. We tested three potential mechanisms: reduction of temporal variability through population asynchrony; enhancement of long-term average performance through positive selection effects; and increases in the temporal mean due to overyielding. Our results support a stabilizing effect of diversity on the temporal variability of grassland aboveground annual net primary production through two mechanisms. Two-species communities with greater population asynchrony were more stable in their average production over time due to compensatory fluctuations. Overyielding also stabilized productivity by increasing levels of average biomass production relative to temporal variability. However, there was no evidence for a performance-enhancing effect on the temporal mean through positive selection effects. In combination with previous work, our results suggest that stabilizing effects of diversity on community productivity through population asynchrony and overyielding appear to be general in grassland ecosystems.
Y1  - 2010
UR  - http://esapubs.org/esapubs/journals/ecology.htm
SN  - 0012-9658
ER  - 
TY  - JOUR
A1  - Guerrero-Ramirez, Nathaly Rokssana
A1  - Craven, Dylan
A1  - Reich, Peter B.
A1  - Ewel, John J.
A1  - Isbell, Forest
A1  - Koricheva, Julia
A1  - Parrotta, John A.
A1  - Auge, Harald
A1  - Erickson, Heather E.
A1  - Forrester, David I.
A1  - Hector, Andy
A1  - Joshi, Jasmin Radha
A1  - Montagnini, Florencia
A1  - Palmborg, Cecilia
A1  - Piotto, Daniel
A1  - Potvin, Catherine
A1  - Roscher, Christiane
A1  - van Ruijven, Jasper
A1  - Tilman, David
A1  - Wilsey, Brian
A1  - Eisenhauer, Nico
T1  - Diversity-dependent temporal divergence of ecosystem functioning in experimental ecosystems
JF  - Nature ecology & evolution
N2  - The effects of biodiversity on ecosystem functioning generally increase over time, but the underlying processes remain unclear. Using 26 long-term grassland and forest experimental ecosystems, we demonstrate that biodiversity-ecosystem functioning relationships strengthen mainly by greater increases in functioning in high-diversity communities in grasslands and forests. In grasslands, biodiversity effects also strengthen due to decreases in functioning in low-diversity communities. Contrasting trends across grasslands are associated with differences in soil characteristics.
Y1  - 2017
U6  - https://doi.org/10.1038/s41559-017-0325-1
SN  - 2397-334X
VL  - 1
IS  - 11
SP  - 1639
EP  - 1642
PB  - Nature Publ. Group
CY  - London
ER  -