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Chaotic Dynamics in Food-Limited Populations: Implications for Wildlife Management

In: Wildlife 2001: Populations

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  • Mark E. Ritchie

    (Utah State University, Department of Fisheries and Wildlife)

Abstract

Analysis of simple, discrete mechanistic models of population growth suggests that chaotic dynamics are more likely to occur than predicted by previous analyses of simple logistic models. Three outcomes of the analysis are interesting: (1) adding predation may induce chaotic dynamics in food-limited prey that otherwise would not exhibit chaos, (2) chaos is more likely in more productive environments, and (3) if chaotic dynamics occur, most often they will result in local extinction of the population. These outcomes suggest that chaos can occur even in large vertebrate species with inherently low reproductive rates. In addition, wildlife populations may be more likely to exhibit chaos in eutrophic environments such as agricultural areas. Consequently, the potential for chaotic dynamics may be an important consideration in decisions about wildlife conservation and management.

Suggested Citation

  • Mark E. Ritchie, 1992. "Chaotic Dynamics in Food-Limited Populations: Implications for Wildlife Management," Springer Books, in: Dale R. McCullough & Reginald H. Barrett (ed.), Wildlife 2001: Populations, pages 139-147, Springer.
    • Handle: RePEc:spr:sprchp:978-94-011-2868-1_13
    DOI: 10.1007/978-94-011-2868-1_13
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