Nuptial gifts fail to resolve a sexual conflict in an insect

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Nuptial gifts fail to resolve a sexual conflict in an insect

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dc.contributor.author Wedell, Nina en_GB
dc.contributor.author Tregenza, Tom en_GB
dc.contributor.author Simmons, Leigh W en_GB
dc.contributor.department University of Exeter en_GB
dc.date.accessioned 2008-09-28T19:35:53Z en_GB
dc.date.accessioned 2011-01-25T11:46:50Z en_US
dc.date.accessioned 2013-03-20T14:47:26Z
dc.date.issued 2008-07-15 en_GB
dc.description.abstract Background Because of the potential benefits to individuals of saving investment for future mating opportunities, there is conflict between mates over most aspects of reproduction. Males of many species transfer compounds in the ejaculate that manipulate female reproductive physiology to increase male reproductive success. These seminal compounds are often associated with direct and/or indirect costs to females. In contrast, in some species ejaculates also contain nutrients used by females for somatic maintenance and increased reproductive output. In general, the extent to which male seminal components are detrimental or beneficial to females is poorly understood, and interactions between seminal compounds with different effects have been almost completely neglected. Here we examine the impact of male receptivity-suppressing factors and nutrient donations on female longevity and lifetime reproductive output in the bushcricket Requena verticalis. Results We show that receiving multiple ejaculates reduces longevity in female R. verticalis, indicating a cost of male derived receptivity-suppressing compounds. Consumption of male nutrient donations does not appear to ameliorate this longevity cost, and there was no effect of nutrient provisioning on female lifetime fecundity. Conclusion These results indicate that nutrient provisioning does not provide a resolution to sexual conflict over female receptivity in this bushcricket species. en_GB
dc.identifier.citation BMC Evolutionary Biology 2008 8:204 en_GB
dc.identifier.doi 10.1186/1471-2148-8-204 en_GB
dc.identifier.uri http://hdl.handle.net/10036/38240 en_GB
dc.publisher BioMed Central en_GB
dc.relation.url http://www.biomedcentral.com/1471-2148/8/204 en_GB
dc.relation.url http://creativecommons.org/licenses/by/2.0 en_GB
dc.rights Copyright © 2008 Wedell et al; licensee BioMed Central Ltd. en_GB
dc.title Nuptial gifts fail to resolve a sexual conflict in an insect en_GB
dc.date.available 2008-07-15 en_GB
dc.date.available 2008-09-28T19:35:53Z en_GB
dc.date.available 2011-01-25T11:46:50Z en_US
dc.date.available 2013-03-20T14:47:26Z
dc.identifier.issn 1471-2148 en_GB
dc.identifier.journal BMC Evolutionary Biology en_GB
dc.identifier.pmcid 2491630 en_GB
dc.identifier.pmid 18627603 en_GB


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