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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/21212

Title: Dynamics of Experimental Populations of Native and Introduced Blowflies (Diptera: Calliphoridae): Mathematical Modelling and the Transition from Asymptotic Equilibrium to Bounded Oscillations
Authors: Godoy, Wesley Augusto Conde
Von Zuben, Cláudio José
dos Reis, Sérgio Furtado
Von Zuben, Fernando José
Keywords: Cochliomyia macellaria - Chrysomya megacephala - Chrysomya putoria - population dynamics - sensibility analysis
Issue Date: 31-Dec-1996
Publisher: Fundação Oswaldo Cruz, Fiocruz
Citation: Memórias do Instituto Oswaldo Cruz (ISSN: 1678-8060) Vol 91 Num 5
Abstract: The equilibrium dynamics of native and introduced blowflies is modelled using a density-dependent model of population growth that takes into account important features of the life-history in these flies. A theoretical analysis indicates that the product of maximum fecundity and survival is the primary determinant of the dynamics. Cochliomyia macellaria, a blowfly native to the Americas and the introduced Chrysomya megacephala and Chrysomya putoria, differ in their dynamics in that the first species shows a damping oscillatory behavior leading to a one-point equilibrium, whereas in the last two species population numbers show a two-point limit cycle. Simulations showed that variation in fecundity has a marked effect on the dynamics and indicates the possibility of transitions from one-point equilibrium to bounded oscillations and aperiodic behavior. Variation in survival has much less influence on the dynamics.
URI: http://hdl.handle.net/1807/21212
Other Identifiers: http://www.bioline.org.br/abstract?id=oc96116
Rights: Copyright 1996 Fundacao Oswaldo Cruz
Appears in Collections:Bioline International Legacy Collection

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