Relationships of temperature and biodiversity with stability of natural aquatic food webs

Qinghua Zhao, Paul J. Van den Brink, Chi Xu, Shaopeng Wang, Adam Clark, Canan Karakoç, George Sugihara, Claire Widdicombe, Angus Atkinson, Shin-ichiro Matsuzaki, Ryuichiro Shinohara, Shuiqing He, Yingying Wang, Frederik De Laender

Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs

Résumé

Temperature and biodiversity changes occur in concert, but their joint effects on ecological stability of natural food webs are unknown. Here, we assess these relationships in 19 planktonic food webs. We estimate stability as structural stability (using the volume contraction rate) and temporal stability (using the temporal variation of species abundances). Warmer temperatures were associated with lower structural and temporal stability, while biodiversity had no consistent effects on either stability property. While species richness was associated with lower structural stability and higher temporal stability, Simpson diversity was associated with higher temporal stability. The responses of structural stability were linked to disproportionate contributions from two trophic groups (predators and consumers), while the responses of temporal stability were linked both to synchrony of all species within the food web and distinctive contributions from three trophic groups (predators, consumers, and producers). Our results suggest that, in natural ecosystems, warmer temperatures can erode ecosystem stability, while biodiversity changes may not have consistent effects.

langue originaleAnglais
Numéro d'article3507
journalNature Communications
Volume14
Numéro de publication1
Les DOIs
Etat de la publicationPublié - déc. 2023

Financement

We thank Chun\u2010Wei Chang and Chih\u2010hao Hsieh for their guidance in using multiview distance regularised S-map. We thank Ethan R. Deyle who assisted us with the S-map technique. We thank all participants in each long-term monitoring site. We thank members of the Lab of Environmental Change and Community Ecology at the University of Namur for their discussions. F.D.L. acknowledges funding from the concerted research action (ARC) from the special research fund (Convention 18/23-095). Q.H.Z. is supported by the China Scholarship Council (No. 201606190229). S.P.W. is supported by the National Natural Science Foundation of China (31988102). The Western English Channel time series is funded by the UK Natural Environment Research Council through its National Capability Long-term Single Centre Science Programme, Climate Linked Atlantic Sector Science, grant number NE/R015953/1. C.X. is supported by the National Natural Science Foundation of China (32061143014). G.S. acknowledges the National Science Foundation (DEB-1655203 and ABI-1667584), the Department of Interior (NPS-P20AC00527), the McQuown Fund and the McQuown Chair in Natural Sciences, University of California, San Diego.

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