|
|||||
|
|
A model for intraguild predation dynamics between immature stages |
|
| Authors: | Lucas Del Bianco Faria Michel Iskin da S. Costa |
| Affiliation: | a Setor de Ecologia, Departamento de Biologia, Universidade Federal de Lavras, Lavras (MG), 37200-000, Brazil b Laboratório Nacional de Computação Científica, Av. Getúlio Vargas, 333, Quitandinha, Petrópolis (RJ), 25651-070, Brazil c Departamento de Entomologia e Acarologia, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba (SP), 13418-900, Brazil |
| Abstract: | Dynamical models usually assume that predation occurs between mature stages and/or between mature and immature stages. In this work a stage-structured discrete time model is developed for a system where intraguild predation takes place only in the course of immature stages of predator and its prey. Therefore, the proposed mathematical setup demands functional relations linking predation in immature life stages with survival and fecundity in mature stages. The behavior of the model is examined in order to investigate the interplay among predator attack rate, its satiation of prey consumption and the success of intraguild predator invasion. |
| Keywords: | Larval intraguild predation Immature stages Trophic interactions Intraspecific and interspecific competition Population dynamics |
| 本文献已被 ScienceDirect 等数据库收录！ | |