n African Entomology - Population dynamics of (Diptera : Calliphoridae) at different temperatures




In this study we analysed the theoretical population dynamics of , an exotic blowfly, kept at 25 and 30 °C, using a density-dependent mathematical model, with parametric estimates of survival and fecundity in the laboratory. No change in terms of oscillation patterns was found for the two temperatures. The populations exhibited a two-point limit cycle, i.e. oscillations between two fixed points, at 25 and 30 °C. However, a quantitative change was observed, indicating that at 25 °C the number of immatures in equilibrium is 1176 and at 30 °C, 1944. The implications of this difference in terms of equilibrium for population dynamics of are discussed.


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