期刊
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS
卷 257, 期 1, 页码 206-222出版社
ACADEMIC PRESS INC
DOI: 10.1006/jmaa.2000.7343
关键词
predator-prey; reaction-diffusion; functional response; permanence; uniform persistence
The dynamics of predator-prey models with the Beddington-DeAngelis functional response are analyzed, primarily from the viewpoint of permanence (uniform persistence). The Beddington-DeAngelis functional response is similar to the Holling type 2 functional response but contains an extra term describing mutual interference by predators. Both spatially homogeneous models based on ordinary differential equations and reaction-diffusion models are considered. Criteria for permanence and fur predator extinction are derived. For systems without diffusion or with no-flux boundary conditions, criteria are derived for the existence of a globally stable coexistence equilibrium or, alternatively, for the existence of periodic orbits. (C) 2001 Academic Press.
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