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Conservation and Management for Multiple Species: Integrating Field Research and Modeling into Management Decisions

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  • H. REŞIT AKÇAKAYA

    (Applied Biomathematics, 100 North Country Road, Setauket, New York 11733, USA)

Abstract

Multiple-species reserves aim at supporting viable populations of selected species. Population viability analysis (PVA) is a group of methods for predicting such measures as extinction risk based on species-specific data. These methods include models that simulate the dynamics of a population or a metapopulation. A PVA model for the California gnatcatcher in Orange County was developed with landscape (GIS) data on the habitat characteristics and requirements and demographic data on population dynamics of the species. The potential applications of this model include sensitivity analysis that provides guidance for planning fieldwork, designing reserves, evaluating management options, and assessing human impact. The method can be extended to multiple species by combining habitat suitability maps for selected species with weights based on the threat faced by each species, and the contribution of habitat patches to the persistence of each species. These applications and extensions, together with the ability of the model to combine habitat and demographic data, make PVA a powerful tool for the design, conservation, and management of multiple species reserves.

Suggested Citation

  • H. Reşit Akçakaya, 2000. "Conservation and Management for Multiple Species: Integrating Field Research and Modeling into Management Decisions," Environmental Management, Springer, vol. 26(1), pages 75-83, July.
    • Handle: RePEc:spr:envman:v:26:y:2000:i:1:d:10.1007_s002670010063
    DOI: 10.1007/s002670010063
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