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Comment on "Forest microclimate dynamics drive plant responses to warming"
Romain Bertrand1, Fabien Aubret2, Gaël Grenouillet3,4
1Laboratoire Évolution et Diversité Biologique, UMR5174, Université de Toulouse III Paul Sabatier, CNRS, IRD, Toulouse, France. romain.bertrand2@univ-tlse3.fr.
Science (New York, N.Y.)
|November 27, 2020
Summary
Global warming, not microclimate, primarily drives forest plant community changes. Understanding climatic lag is key for effective forest management and conservation strategies.
Area of Science:
- Ecology
- Climate Change Biology
- Forest Science
Background:
- Forest plant communities are responding to global warming.
- Previous research suggested microclimate dynamics are the primary drivers of these responses.
- The role of microclimate versus broader climatic trends requires further investigation.
Purpose of the Study:
- To re-evaluate the primary drivers of forest plant community responses to global warming.
- To assess the explanatory power of microclimate components versus climatic lag.
- To provide actionable insights for forest managers.
Main Methods:
- Analysis of forest plant community data in relation to microclimate variables.
- Statistical modeling to compare the influence of microclimate dynamics and climatic lag.
- Deconstruction of microclimate components to understand their contribution to community shifts.
Main Results:
- Community thermophilization is poorly explained by underlying microclimate components.
- Global warming, specifically climatic lag, is identified as the primary control.
- Microclimate dynamics do not sufficiently explain observed shifts in plant communities.
Conclusions:
- Microclimate is not the primary factor controlling forest plant community responses to global warming.
- Climatic lag is the dominant factor influencing community thermophilization.
- Understanding microclimate components offers valuable insights for adaptive forest management.
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