Dynamics of experimental populations of native and introduced blowflies (Diptera: Calliphoridae): mathematical modelling and the transition from asymptotic equilibrium to bounded oscillations

Abstract

The equilibrium dynamics of native and introduced blowflies is modelled using a density-dependent

Larval density, temperature and biological aspects of Chrysomya megacephala (Diptera: Calliphoridae)

“…Thus, these results are in accordance with those obtained by Godoy et al (1996). Fecundity is the most sensitive parameter for C. megacephala, as it can cause significant changes in behavioural dynamics, leading the population from a two-point limit cycle to a one-point stable equilibrium (Godoy et al, 1996). In a very recent study focusing on intra-and interspecific competition among C. albiceps, C. megacephala and C. macellaria (Rosa et al, 2004) with different amounts of food, it was observed that C. megacephala, C .macellaria and C. albiceps exhibited similar survival at densities of both 200 and 1,000 with either 25 or 50g of food for third instar larvae.…”

“…Thus, these results are in accordance with those obtained by Godoy et al (1996). Fecundity is the most sensitive parameter for C. megacephala, as it can cause significant changes in behavioural dynamics, leading the population from a two-point limit cycle to a one-point stable equilibrium (Godoy et al, 1996).…”

“…A detailed sensitivity analysis of population dynamics by using mathematical models has shown that the most sensitive demographic parameter for C. megacephala in terms of influence on dynamics is not survival (Godoy et al, 1996). Thus, these results are in accordance with those obtained by Godoy et al (1996).…”

Population dynamics of Musca domestica (Diptera: Muscidae): experimental and theoretical studies at different temperatures

“…The absence of change of dynamic behavior observed in M. domestica suggested that the species tended to keep a monotonic stable dynamics. Prout's model has also been used to understand the dynamics of three invader blowfly species, C. megacephala, C. putoria and C. albiceps, and two native species, C. macellaria and Lucilia eximia Von Zuben et al, 1993;Godoy et al, 1996;Reis et al, 1996;Godoy et al, 1997;Teixeira et al, 1998;Silva et al, 1999;Godoy et al, 2001;Silva et al, 2003).…”

Sex ratio and dynamic behavior in populations of the exotic blowfly Chrysomya albiceps (Diptera, Calliphoridae)

“…In contrast, a stable equilibrium has been observed in Cochliomyia macellaria and Lucilia eximia Silva et al 2003), both of which are native species to the Americas (Guimarães et al 1978(Guimarães et al , 1979. Godoy et al (1996) investigated the sensitivity of fecundity and survival in C. megacephala, C. putoria, and C. macellaria using the Prout and McChesney model and found that fecundity was the most sensitive parameter for detecting variations in population size and dynamics. When set to larger values, the dynamic behavior changed from periodic cycles to chaos (Godoy et al1996(Godoy et al , 2001.…”