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EVOLUTION AND POPULATION ECOLOGY OF PARASITE–HOST SYSTEMS1

Published online by Cambridge University Press:  31 May 2012

David Pimentel  and
Frederick A. Stone
David Pimentel
Affiliation:
Department of Entomology and Limnology, New York State College of Agriculture, Cornell University, Ithaca, New York
Frederick A. Stone
Affiliation:
Department of Entomology and Limnology, New York State College of Agriculture, Cornell University, Ithaca, New York
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Abstract

The ecology and evolution of the parasite (Nasonia vitripennis Walker) and host (Musca domestica L.) were investigated in a specially designed multicelled population cage which provided ample space–time structure to the environment for free parasite–host interactions. The population characteristics exhibited by a control or newly associated parasite–host system were compared with an experimental parasite–host system which already had evolved a degree of ecological homeostasis. Population fluctuations in the experimental parasite population were dampened compared with the control parasite population which fluctuated with great intensity; and in addition, the mean number of parasites in the experimental systems was significantly lower (about 1/4) than the mean number of parasites in the control system.

Type
Articles
Information
The Canadian Entomologist , Volume 100 , Issue 6 , June 1968 , pp. 655 - 662
Copyright
Copyright © Entomological Society of Canada 1968

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