caa a22 4500 465788793 CHVBK 20180323112017.0 cr unu---uuuuu 170327e19901101xx s 000 0 eng 10.1007/BF01065963 doi (NATIONALLICENCE)springer-10.1007/BF01065963 Overwintering microhabitat selection by an Endoparasitoid (Hymenoptera: Aphidiidae): Induced phototactic and thigmokinetic responses in dying hosts [Elektronische Daten] [Jacques Brodeur, Jeremy McNeil] Aphidius nigripesAshmead, an endoparasitoid of the potato aphid, Macrosiphum euphorbiae(Thomas), not only has the ability to modify host behavior, but does so differently depending on its physiological state. A previous study indicated that just prior to death, parasitized aphids that contain diapausing parasitoid larvae leave the host plant to mummify in concealed sites, while those containing nondiapausing parasitoids generally remain on the plant. This study explored the proximal factors involved in the selection of an overwintering microhabitat by a host containing a diapausing A. nigripeslarva. Parasitized aphids showed negative phototaxis, thigmokinesis, and chose a dark rather than a light-colored substrate when seeking a site to mummify. However, their behavior was not influenced by either gravity or the presence of another mummy. The combined effects of these behavioral patterns would result in dormant parasitoids overwintering in sheltered sites, thereby reducing the negative effects of adverse climatic conditions and the actions of natural enemies. The utilization of these proximal cues may also enhance parasitoid, survival by reducing aphid wandering time prior to mummification. Plenum Publishing Corporation, 1990 parasitoid behavior nationallicence host behavior modification nationallicence habitat selection nationallicence overwintering survival nationallicence phototaxis nationallicence thigmokinesis nationallicence Brodeur Jacques Département de biologie, Université Laval, G1K 7P4, Sainte-Foy, P.Q., Canada aut McNeil Jeremy Département de biologie, Université Laval, G1K 7P4, Sainte-Foy, P.Q., Canada aut Journal of Insect Behavior Kluwer Academic Publishers-Plenum Publishers 3/6(1990-11-01), 751-763 0892-7553 3:6<751 1990 3 10905 https://doi.org/10.1007/BF01065963 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01065963 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Brodeur Jacques Département de biologie, Université Laval, G1K 7P4, Sainte-Foy, P.Q., Canada aut NATIONALLICENCE 700 1- McNeil Jeremy Département de biologie, Université Laval, G1K 7P4, Sainte-Foy, P.Q., Canada aut NATIONALLICENCE 773 0- Journal of Insect Behavior Kluwer Academic Publishers-Plenum Publishers 3/6(1990-11-01), 751-763 0892-7553 3:6<751 1990 3 10905 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer