期刊
JOURNAL OF INSECT PHYSIOLOGY
卷 55, 期 7, 页码 624-628出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jinsphys.2009.03.010
关键词
Hymenoptera; Sexual communication; Chemical signalling; Cuticular hydrocarbons
资金
- DFG [He 1623/19]
While sexual communication is often characterized by attempted manipulation, both sexes agree about females reliably signalling their receptivity. Female sexuals of the ant Leptothorax gredleri quickly became unattractive to males after their first copulation. This loss of attractiveness coincided with almost immediate changes in their cuticular hydrocarbon (CHC) profiles. Already 30 min after mating, the CHC profiles of female sexuals had significantly lower relative amounts of branched alkanes and higher amounts of linear alkanes than those of unmated and freshly mated female sexuals. Discriminant analysis did not distinguish between the profiles of freshly mated and unmated female sexuals, suggesting that the extremely rapid modification of CHC profiles is not caused by males marking females with anti-aphrodisiac CHCs. Instead, the new profile is produced by the female sexuals themselves. In addition to making them unattractive to males, this change may also help mated female sexuals when seeking adoption into established colonies. (C) 2009 Elsevier Ltd. All rights reserved.
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