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Science 14 April 1989:
Vol. 244. no. 4901, pp. 226 - 228
DOI: 10.1126/science.244.4901.226
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Articles

Seasonal Microhabitat Selection by an Endoparasitoid Through Adaptive Modification of Host Behavior

JACQUES BRODEUR 1 and JEREMY N. MCNEIL 1

1 Départment de biologie, Université Laval, Sainte-Foy, Québec, Canada, G1K 7P4.

Differences in the distribution of parasitized and unparasitized hosts has been used to infer modification of host behavior by insect parasitoids. Data are presented showing that not only do parasitized hosts behave differently from unparasitized ones, but that the behavior of parasitized hosts varies in function of the physiological state of the parasitoid. Aphids containing nondiapausing parasitoids leave the aphid colony and mummify on the upper surface of the leaves, whereas those containing diapausing parasitoids leave the host plant and mummify in concealed sites. Modification of host behavior by diapausing parasitoids results in the selection of a suitable microhabitat that reduces the incidence of hyperparasitism and should decrease the action of adverse climatic conditions during the lengthy dormant period.

Submitted on October 3, 1988
Accepted on February 6, 1989


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Context-dependent fitness effects of behavioral manipulation by a parasitoid.
A. Janssen, A. H. Grosman, E. G. Cordeiro, E. F. de Brito, J. O. Fonseca, F. Colares, A. Pallini, E. R. Lima, and M. W. Sabelis (2009)
Behav. Ecol.
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