Abstract
AbstractThe 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.
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