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Increased Temperature Disrupts the Biodiversity–Ecosystem Functioning Relationship

Parain, Elodie C. ; Rohr, Rudolf P. ; Gray, Sarah M. ; Bersier, Louis-Félix

The American naturalist, 2019-02, Vol.193 (2), p.227-239 [Periódico revisado por pares]

United States: University of Chicago Press

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  • Título:
    Increased Temperature Disrupts the Biodiversity–Ecosystem Functioning Relationship
  • Autor: Parain, Elodie C. ; Rohr, Rudolf P. ; Gray, Sarah M. ; Bersier, Louis-Félix
  • Assuntos: Biodiversity ; Climate Change ; Dynamic models ; Ecosystem ; Ecosystems ; Environmental changes ; Environmental impact ; Microcosms ; Microorganisms ; Models, Biological ; Sarraceniaceae ; Temperature ; Temperature effects
  • É parte de: The American naturalist, 2019-02, Vol.193 (2), p.227-239
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Gaining knowledge of how ecosystems provide essential services to humans is of primary importance, especially with the current threat of climate change. Yet little is known about how increased temperature will impact the biodiversity–ecosystem functioning (BEF) relationship. We tackled this subject theoretically and experimentally. We developed a BEF theory based on mechanistic population dynamic models, which allows the inclusion of the effect of temperature. Using experimentally established relationships between attack rate and temperature, the model predicts that temperature increase will intensify competition, and consequently the BEF relationship will flatten or even become negative. We conducted a laboratory experiment with natural microbial microcosms, and the results were in agreement with the model predictions. The experimental results also revealed that an increase in both temperature average and variation had a more intense effect than an increase in temperature average alone. Our results indicate that under climate change, high diversity may not guarantee high ecosystem functioning.
  • Editor: United States: University of Chicago Press
  • Idioma: Inglês
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