文章基本信息

标题：Warning signals of biodiversity collapse across gradients of tropical forest loss
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作者：Fabio de Oliveira Roque ; Jorge F. S. Menezes ; Tobin Northfield 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2018
卷号：8
期号：1
页码：1622
DOI：10.1038/s41598-018-19985-9
语种：English
出版社：Springer Nature
摘要：We evaluate potential warning signals that may aid in identifying the proximity of ecological communities to biodiversity thresholds from habitat loss-often termed "tipping points"-in tropical forests. We used datasets from studies of Neotropical mammal, frog, bird, and insect communities. Our findings provide only limited evidence that an increase in the variance (heteroskedasticity) of biodiversity-related parameters can provide a general warning signal of impending threshold changes in communities, as forest loss increases. However, such an apparent effect was evident for amphibians in the Brazilian Atlantic Forest and Amazonian mammal and bird communities, suggesting that impending changes in some species assemblages might be predictable. We consider the potential of such warning signs to help forecast drastic changes in biodiversity.