Disentangling Direct and Indirect Effects of Temporal Isolation on the Multifaceted Diversity of Small Mammals on Land‐Bridge Islands DOI

Chengxiu Zhan,

Yang Xu, Huaiping Zhu

et al.

Journal of Biogeography, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

ABSTRACT Aim A major goal of island biogeography is to understand how communities are assembled over time, and temporal isolation has been shown affect species diversity. However, our knowledge the indirect effect on diversity through other characteristics still limited, constraining understanding assembly processes islands, particularly land‐bridge islands. The purpose here was disentangle direct effects three dimensions (taxonomic, phylogenetic functional diversity) small mammals Location Zhoushan Archipelago, China. Taxon Small mammals. Methods We performed mammal censuses 39 islands a nearby mainland site. first used univariate linear regressions test relationships between indices characteristics, then built piecewise structural equation models (SEMs) multifaceted Results In line with expectation, directly affected taxonomic indirectly all arose because young have larger area lower spatial than old ones, or remoter suffer stronger human activities, which Importantly, were strong for Conclusion respond differently mechanisms that and/or relate isolation. Future studies should attempt quantify rather only effects. Furthermore, considering will contribute identifying underlying community planning effective conservation strategies

Language: Английский

Disentangling Direct and Indirect Effects of Temporal Isolation on the Multifaceted Diversity of Small Mammals on Land‐Bridge Islands DOI

Chengxiu Zhan,

Yang Xu, Huaiping Zhu

et al.

Journal of Biogeography, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

ABSTRACT Aim A major goal of island biogeography is to understand how communities are assembled over time, and temporal isolation has been shown affect species diversity. However, our knowledge the indirect effect on diversity through other characteristics still limited, constraining understanding assembly processes islands, particularly land‐bridge islands. The purpose here was disentangle direct effects three dimensions (taxonomic, phylogenetic functional diversity) small mammals Location Zhoushan Archipelago, China. Taxon Small mammals. Methods We performed mammal censuses 39 islands a nearby mainland site. first used univariate linear regressions test relationships between indices characteristics, then built piecewise structural equation models (SEMs) multifaceted Results In line with expectation, directly affected taxonomic indirectly all arose because young have larger area lower spatial than old ones, or remoter suffer stronger human activities, which Importantly, were strong for Conclusion respond differently mechanisms that and/or relate isolation. Future studies should attempt quantify rather only effects. Furthermore, considering will contribute identifying underlying community planning effective conservation strategies

Language: Английский

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