2023 Early Hearing Detection & Intervention Conference

March 5-7, 2023 • Cincinnati, OH

5/21/2018 | 11:30 AM - 11:45 AM | METAPOPULATION STABILITY IN BRANCHING RIVER NETWORKS | 310 B

METAPOPULATION STABILITY IN BRANCHING RIVER NETWORKS

Metapopulation stability is a critical ecological property. Although ecosystem size has been considered as a fundamental driver of metapopulation stability, current theories ignore emergent properties of branching ecosystems, such as rivers. Here, we show that a scale-independent characteristic of fractal river networks, branching complexity, stabilizes the dynamics of watershed metapopulations. We theoretically revealed that a strong association between branching complexity and metapopulation stability is a consequence of purely probabilistic processes. Furthermore, the stabilizing effect of branching complexity was consistently observed in metapopulations of four ecologically distinct riverine fishes. Hence, branching complexity may be a ubiquitous agent of metapopulation stability in branching ecosystems. The loss of such complexity may undermine resilience of metapopulations.

Spatial
Dispersal
Distribution

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Presenters/Authors

Akira Terui (), Department of Biology, University of North Carolina at Greensboro, hanabi0111@gmail.com;