2022 Early Hearing Detection & Intervention Virtual Conference

March 13 - 15, 2022

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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;


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Nobuo Ishiyama (), Hokkaido University, night7mare@gmail.com;


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Hirokazu Urabe (), Hokkaido Research Institute, urabe-hirokazu@hro.or.jp;


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Satoshi Ono (), Hokkaido Research Institute, ono@hro.or.jp;


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Jacques Finlay (), University of Minnesota, jfinlay@umn.edu;


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Futoshi Nakamura (), Hokkaido University, nakaf@for.agr.hokudai.ac.jp;


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