Policy, drought and fires combine to affect biodiversity in the Amazon basin

1 de setembro de 2021

set 1, 2021

Xiao Feng, Cory Merow, Zhihua Liu, Daniel S. Park, Patrick R. Roehrdanz, Brian Maitner, Erica A. Newman, Brad L. Boyle, Aaron Lien, Joseph R. Burger, Mathias M. Pires, Paulo M. Brando, Mark B. Bush, Crystal N. H. McMichael, Danilo M. Neves, Efthymios I. Nikolopoulos, Scott R. Saleska, Lee Hannah, David D. Breshears, Tom P. Evans, José R. Soto, Kacey Ernst, Brian J. Enquis

The Amazon basin contains the largest continuous area of tropical rainforests in the world, and has a crucial role in regulating Earth’s climate1. Rates of tropical-rainforest deforestation and the impacts of fire and drought there are well established2,3. Less is known, however, about how these factors might interact to affect biodiversity, and about the role that forest policy and its enforcement have had over time. Writing in Nature, Feng et al.4 address these issues.

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See also

Threshold Responses to Soil Moisture Deficit by Trees and Soil in Tropical Rain Forests: Insights from Field Experiments

Threshold Responses to Soil Moisture Deficit by Trees and Soil in Tropical Rain Forests: Insights from Field Experiments

Many tropical rain forest regions are at risk of increased future drought. The net effects of drought on forest ecosystem functioning will be substantial if important ecological thresholds are passed. However, understanding and predicting these effects is challenging using observational studies alone. Field-based rainfall exclusion (canopy throughfall exclusion; TFE) experiments can offer mechanistic insight into the response to extended or severe drought and can be used to help improve model-based simulations, which are currently inadequate.