POPULATION-DYNAMICS OF CHRYSOMYA-PUTORIA (WIED) (DIPT, CALLIPHORIDAE)

The effect of larval density on fecundity and survival of Chrysomya putoria was analysed in this study to characterize the dynamics of experimental populations of this species. Estimates of fecundity ana survival were incorporated into a first-order finite difference equation, written as n(t+1)=1/2F(n(t))S(n(t))n(t). The dynamic behavior of this equation was assessed to deduce the nature of the population dynamics of C. putoria. Exponential functions fitted to the fecundity and survival data indicate that these traits decrease significantly as a function of increasing density of immatures. The mathematical model applied to experimental populations of C. putoria predicts a theoretical two-point limit cycle for immatures and adults.