| Parasites reduce attractiveness and reproductive success in male grain beetles. | |
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MedLine Citation:
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PMID: 10715176 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Sexual characters may reveal the quality of a potential mate, including the mate's level of infection with parasites. Females that prefer males with low levels of infection or no infection may benefit in several ways. Direct benefits may include avoidance of infection, acquistition of larger nuptial gifts or enhancement in fecundity due to differences in male fertility. Females may also benefit indirectly by producing offspring that are more resistant to infections. We measured female preference for odours produced by male grain beetles, Tenebrio molitor, that were either infected by a tapeworm, Hymenolepis diminuta, or uninfected. This parasite is not transmitted directly between conspecifics. Females were attracted to odours of all males, but they were less attracted to those from parasitized males. To the contrary, females were preferentially attracted to infected females. Males did not show any biased attraction to odours from infected and uninfected male beetles. Females that mated with highly infected males produced fewer offspring than females mated to uninfected males, indicating parasitic infection inflicts multiple costs to males. These results are consistent with models of parasite-mediated sexual selection. Copyright 2000 The Association for the Study of Animal Behaviour. |
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Authors:
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Worden; Parker; Pappas |
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Publication Detail:
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Type: JOURNAL ARTICLE |
Journal Detail:
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Title: Animal behaviour Volume: 59 ISSN: 0003-3472 ISO Abbreviation: Anim Behav Publication Date: 2000 Mar |
Date Detail:
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Created Date: 2000-03-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0376746 Medline TA: Anim Behav Country: - |
Other Details:
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Languages: ENG Pagination: 543-550 Citation Subset: - |
Affiliation:
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Department of Evolution, Ecology and Organismal Biology, Ohio State University |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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