Southeast Asian biodiversity is a fifth lower in deforested versus intact forests

Autor: Thomas Botterill-James, Luke A Yates, Jessie C Buettel, Zach Aandahl, Barry W Brook
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Environmental Research Letters, Vol 19, Iss 11, p 113007 (2024)
Druh dokumentu: article
ISSN: 1748-9326
DOI: 10.1088/1748-9326/ad86ce
Popis: Southeast Asia is highly biodiverse and currently experiences among the highest rates of tropical deforestation globally, but impacts on biodiversity are not well synthesized. We use Bayesian multi-level modeling to meta-analyse 831 pairwise comparisons of biodiversity in sites subject to land-use driven deforestation (for example, plantations or logged forest) versus undisturbed sites (control sites). After controlling for hierarchical dependencies, we show that biodiversity is a fifth lower in sites with these land-use driven deforestation (95% credible interval = 16%–28%, mean = 22%). This reduction was greater when forest losses were of high-intensity (34% reduction in biodiversity) compared to low-intensity (18% reduction), and effects were consistent across biogeographic regions and taxa. Oil-palm plantations led to the greatest reduction in biodiversity (39%, CI 27%–48%), and agroforests the least (24%, CI 10%–37%). We also find that biodiversity was reduced by 26% (CI 4%–42%) in secondary forest sites compared to undisturbed control sites, but biodiversity was the same in intermediate or mature-aged secondary forest compared to control sites (although species composition was potentially altered). Overall, our study provides a new line of evidence of the substantial detrimental impacts of land-use driven deforestation and particular types of land-use on the biodiversity of Southeast Asia.
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