Journal
BIOSYSTEMS
Volume 110, Issue 3, Pages 162-170Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biosystems.2012.10.001
Keywords
Impulsive controls; Floquet theory; Comparison estimates; Stability; Permanence; Integrated pest management
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Funding
- Romanian National Authority for Scientific Research, CNCS-UEFISCDI [PN-II-ID-PCE-2011-3-0557]
- National Natural Science Foundation of China [11126142, 11201187]
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This paper investigates the dynamics of a competitive single-prey n-predators model of integrated pest management, which is subject to periodic and impulsive controls, from the viewpoint of finding sufficient conditions for the extinction of prey and for prey and predator permanence. The per capita death rates of prey due to predation are given in abstract, unspecified forms, which encompass large classes of death rates arising from usual predator functional responses, both prey-dependent and predator-dependent. The stability and permanence conditions are then expressed as balance conditions between the cumulative death rate of prey in a period, due to predation from all predator species and to the use of control, and to the cumulative birth rate of prey in the same amount of time. These results are then specialized for the case of prey-dependent functional responses, their biological significance being also discussed. (C) 2012 Elsevier Ireland Ltd. All rights reserved.
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