Spatio-temporal dynamics and transition from asymptotic equilibrium to bounded oscillations in Chrysomya albiceps (Diptera, Calliphoridae)

Memórias do Instituto Oswaldo Cruz

Wesley Augusto Conde Godoy²  Fernando José Von Zuben¹  Cláudio José Von Zuben¹  Sérgio Furtado Dos Reis¹ 

[1] ,Universidade Estadual Paulista IB Departamento de ParasitologiaBotucatu São Paulo ,Brasil

关键词: spatial dynamics;    sensitivity analysis;    Chrysomya albiceps;   

DOI  :  10.1590/S0074-02762001000500006

来源: SciELO

【 摘 要 】

The sensitivity of parameters that govern the stability of population size in Chrysomya albiceps and describe its spatial dynamics was evaluated in this study. The dynamics was modeled using a density-dependent model of population growth. Our simulations show that variation in fecundity and mainly in survival has marked effect on the dynamics and indicates the possibility of transitions from one-point equilibrium to bounded oscillations. C. albiceps exhibits a two-point limit cycle, but the introduction of diffusive dispersal induces an evident qualitative shift from two-point limit cycle to a one fixed-point dynamics. Population dynamics of C. albiceps is here compared to dynamics of Cochliomyia macellaria, C. megacephala and C. putoria.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License