Book contents
- Animal Population Ecology
- Ecology, Biodiversity and Conservation
- Animal Population Ecology
- Copyright page
- Dedication
- Contents
- Prologue
- 1 Hunting Strategies of Predators as Revealed in Field Studies of Great Tits
- 2 The Paradox of Crypsis: Is it Effective against Visual Predation?
- 3 Logistic Law of Population Growth: What Is It Really?
- 4 Reproduction Curves and Their Utilities
- 5 Generalization of the Logistic Model
- 6 Scramble and Contest Competition: What Is the Difference?
- 7 Regulation of Populations: Its Myths and Real Nature
- 8 Predator–Prey Interaction Processes
- 9 Interspecific Competition Processes
- 10 Observations, Analyses, and Interpretations: A Personal View through the Spruce Budworm Studies
- References
- Index
8 - Predator–Prey Interaction Processes
Published online by Cambridge University Press: 01 April 2021
- Animal Population Ecology
- Ecology, Biodiversity and Conservation
- Animal Population Ecology
- Copyright page
- Dedication
- Contents
- Prologue
- 1 Hunting Strategies of Predators as Revealed in Field Studies of Great Tits
- 2 The Paradox of Crypsis: Is it Effective against Visual Predation?
- 3 Logistic Law of Population Growth: What Is It Really?
- 4 Reproduction Curves and Their Utilities
- 5 Generalization of the Logistic Model
- 6 Scramble and Contest Competition: What Is the Difference?
- 7 Regulation of Populations: Its Myths and Real Nature
- 8 Predator–Prey Interaction Processes
- 9 Interspecific Competition Processes
- 10 Observations, Analyses, and Interpretations: A Personal View through the Spruce Budworm Studies
- References
- Index
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.
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- Animal Population EcologyAn Analytical Approach, pp. 181 - 224Publisher: Cambridge University PressPrint publication year: 2021