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

The effect of larval density on fecundity and survival of Chrysomya pu toria was analysed in this study to characterize the dynamics of exper imental populations of this species. Estimates of fecundity ana surviv al were incorporated into a first-order finite difference equation, wr itten as n(t+1)=1/2F(n(t))S(n(t))n(t). The dynamic behavior of this eq uation was assessed to deduce the nature of the population dynamics of C. putoria. Exponential functions fitted to the fecundity and surviva l 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-poi nt limit cycle for immatures and adults.