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Global warming benefits the small in aquatic ecosystems

Open access
Daufresne, Martin, Lengfellner, Kathrin, Sommer, Ulrich·2009·Proceedings of the National Academy of Sciences

Abstract

Understanding the ecological impacts of climate change is a crucial challenge of the twenty-first century. There is a clear lack of general rules regarding the impacts of global warming on biota. Here, we present a metaanalysis of the effect of climate change on body size of ectothermic aquatic organisms (bacteria, phyto- and zooplankton, and fish) from the community to the individual level. Using long-term surveys, experimental data and published results, we show a significant increase in the proportion of small-sized species and young age classes and a decrease in size-at-age. These results are in accordance with the ecological rules dealing with the temperature–size relationships (i.e., Bergmann's rule, James' rule and Temperature–Size Rule). Our study provides evidence that reduced body size is the third universal ecological response to global warming in aquatic systems besides the shift of species ranges toward higher altitudes and latitudes and the seasonal shifts in life cycle events.

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Metadata

Authors
Daufresne, M., Lengfellner, K., & Sommer, U.
Venue
Proceedings of the National Academy of Sciences
Published
2009-08-04
Volume
106
Issue
31
Pages
12788-12793
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2009239184
Cited by
1,686
References
5
FWCI
39.34
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Global warming benefits the small in aquatic ecosystems. https://app.cochat.ai/papers/10.1073/pnas.0902080106
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Daufresne, M., Lengfellner, K., & Sommer, U. (2009). Global warming benefits the small in aquatic ecosystems. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0902080106

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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