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8 - Predator–Prey Interaction Processes

Published online by Cambridge University Press:  01 April 2021

T. Royama
Affiliation:
Canadian Forest Service
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Summary

The model of predator–prey (parasitoid–host) processes developed here is a generalization of single-species processes in which food supply is so depleted that it may take several generations to recover. The model is characterized by several parameters, each representing a certain ecological attribute. I investigate the model’s dynamics by varying the values of these parameters, and by exposing them to exogenous influences.

The above investigation applies to a laboratory experiment in which the predator has no choice but feeds only on the given prey. This would not occur in a natural environment where several predator species feed on several prey species. As a result, we often see an interaction between a complex of predator (parasitoid) species and a complex of prey (host) species. I investigate the dynamics of the complex-vs-complex interactions as open systems (each species may move from one complex to another) to interpret what we observe in natural situations.

Type
Chapter
Information
Animal Population Ecology
An Analytical Approach
, pp. 181 - 224
Publisher: Cambridge University Press
Print publication year: 2021

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