Impacts of biodiversity loss escalate through time as redundancy fades

Science
Peter B ReichNico Eisenhauer

Abstract

Plant diversity generally promotes biomass production, but how the shape of the response curve changes with time remains unclear. This is a critical knowledge gap because the shape of this relationship indicates the extent to which loss of the first few species will influence biomass production. Using two long-term (≥13 years) biodiversity experiments, we show that the effects of diversity on biomass productivity increased and became less saturating over time. Our analyses suggest that effects of diversity-dependent ecosystem feedbacks and interspecific complementarity accumulate over time, causing high-diversity species combinations that appeared functionally redundant during early years to become more functionally unique through time. Consequently, simplification of diverse ecosystems will likely have greater negative impacts on ecosystem functioning than has been suggested by short-term experiments.

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Citations

Jan 10, 2013·Nature Communications·Lars GamfeldtJan Bengtsson
Apr 12, 2013·Proceedings of the National Academy of Sciences of the United States of America·Nico EisenhauerPeter B Reich
Aug 2, 2013·ILAR Journal·Robert S Sikes, Ellen Paul
May 5, 2012·Science·Bradley Cardinale
Jun 16, 2012·Science·Margaret A Palmer, Catherine M Febria
Nov 1, 2012·Science·Mridul K ThomasElena Litchman
Apr 30, 2013·Applied and Environmental Microbiology·Loïc NazariesBrajesh K Singh
Mar 22, 2014·PloS One·Clive R McMahonMark A Hindell
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