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Updated: Feb 15, 2026

Stochastic Noise Application for the Assessment of Medial Vestibular Nucleus Neuron Sensitivity In Vitro
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Metapopulation moments: coupling, stochasticity and persistence.

Matt J Keeling1

  • 1Zoology Department, Cambridge University, Downing Street, Cambridge CB2 3EJ, UK.

The Journal of Animal Ecology
|January 10, 2018
PubMed
Summary
This summary is machine-generated.

Spatial heterogeneity enhances metapopulation persistence, especially in natural-enemy systems at intermediate coupling. Single-species models benefit most from high mixing, negating heterogeneity benefits.

Keywords:
couplingdisease modelsextinctionmetapopulationsmoment closurepersistence

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Area of Science:

  • Ecology
  • Mathematical Biology
  • Population Dynamics

Background:

  • Spatial heterogeneity is a key factor influencing species persistence.
  • Metapopulation dynamics are crucial for understanding species survival in fragmented landscapes.

Purpose of the Study:

  • To develop an analytical model for stochastic metapopulation persistence considering spatial variation.
  • To investigate the impact of spatial heterogeneity on single-species and natural-enemy models.

Main Methods:

  • Developed a novel moment closure technique, assuming log-normal population size distributions.
  • Employed stochastic simulations for full metapopulation analysis.
  • Analyzed single-species and two-species (natural-enemy) models.

Main Results:

  • Single-species models show maximum persistence with high mixing, diminishing the role of spatial heterogeneity.
  • Natural-enemy models exhibit peak persistence at intermediate coupling levels.
  • Low coupling reduces rescue effects, while high coupling eliminates spatial heterogeneity.

Conclusions:

  • The optimal level of spatial heterogeneity for metapopulation persistence depends on species interactions.
  • The oscillatory dynamics of natural-enemy systems drive distinct responses to spatial coupling compared to single-species models.