Coevolution in a one predator-two prey system.

ABSTRACT:

Background

Our understanding of coevolution in a predator-prey system is based mostly on pair-wise interactions.

Methodology and principal findings

Here I analyze a one-predator-two-prey system in which the predator's attack ability and the defense abilities of the prey all evolve. The coevolutionary consequences can differ dramatically depending on the initial trait value and the timing of the alternative prey's invasion into the original system. If the invading prey species has relatively low defense ability when it invades, its defense is likely to evolve to a lower level, stabilizing the population dynamics. In contrast, if when it invades its defense ability is close to that of the resident prey, its defense can evolve to a higher level and that of the resident prey may

SUBMITTER: Mougi A 

PROVIDER: S-EPMC2976687 | biostudies-literature | 2010 Nov

REPOSITORIES: biostudies-literature