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- W2952340181 abstract "Abstract The metapopulation concept initiated a paradigm shift in ecology and conservation biology, recognizing the eminent role of dispersal and colonization as fundamental processes contributing to species’ long‐term persistence. Early models made ad hoc assumptions about a positive area dependency of dispersal (i.e., total number of emigrants), which persisted in the theoretical literature; however, numerous empirical examples of negative area dependencies of dispersal have been reported. Here, we first give a qualitative overview for different area dependencies of dispersal in empirical systems. Then, using a spatially realistic Levins model, we show that extending assumptions on the area dependence of dispersal ( ADD ) to include all empirically supported parameter space, specifically also negative ADD , alters predictions on several conservation‐relevant patterns. Importantly, we find that small patches could be of similar importance as large ones if dispersal decreases inversely with patch area, a result contrasting with previous findings based on a positive ADD . This leads to context‐dependent strategies to preserve metapopulations. If dispersal is positively correlated with patch area, efforts should be devoted to preserving large patches and the total habitat area. If dispersal is negatively correlated with patch area, the most efficient strategy is to preserve a high number of patches, including small ones. Our results have direct implications for management decisions in the context of destruction, deterioration, and protection of habitat patches." @default.
- W2952340181 created "2019-06-27" @default.
- W2952340181 creator A5036574199 @default.
- W2952340181 creator A5053885667 @default.
- W2952340181 date "2019-07-24" @default.
- W2952340181 modified "2023-10-16" @default.
- W2952340181 title "Metapopulations revisited: the area‐dependence of dispersal matters" @default.
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- W2952340181 doi "https://doi.org/10.1002/ecy.2792" @default.
- W2952340181 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31228874" @default.
- W2952340181 hasPublicationYear "2019" @default.
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