Viability of populations in a landscape

P. J. Darwen, D. G. Green

Research output: Contribution to journalArticleResearchpeer-review

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It has long been known that extinctions or wild oscillations in populations can occur when population density is too low, or when a population is confined to too small an area at high population density. This study discovers another cause of extinction. Cellular automata models of a single population in a landscape indicate that, if a population occupies an unconfined region smaller than a critical size, it can also become extinct in spite of healthy population density, the availability of suitable areas to migrate to, and the absence of competitors and predators.

Original languageEnglish
Pages (from-to)165-171
Number of pages7
JournalEcological Modelling
Issue number2-3
Publication statusPublished - 1996
Externally publishedYes


  • Cellular automata models
  • Extinction
  • Population dynamics

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