Chemical basis of courtship in a beetle (Neopyrochroa flabellata): Cantharidin as "nuptial gift".
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Chemical basis of courtship in a beetle (Neopyrochroa flabellata): cantharidin as precopulatory "enticing" agent.
Male Neopyrochroa flabellata have a natural affinity for cantharidin (Spanish fly). They are attracted to cantharidin baits in the field and feed on the compound if it is offered to them in the laboratory. Males that ingest cantharidin secrete cantharidin from a cephalic gland. Females sample secretion from this gland during courtship and mate preferentially with males that had fed on cantharid...
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Social scientists from a variety of fields have grappled with questions about why gift giving exists and where its utility comes from because it is economically inefficient. Economic models of sexual relationships (e.g., Baumeister & Vohs, 2004) propose that gifts given by men are motivated by attempts to barter for access to sex. We offer an alternative model, based on costly signaling theory ...
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Male courtship during copulation is common in insects and spiders, and presumably serves to induce the female to fertilize her eggs with the male’s sperm. Fragmentary observations indicate that in Ditemnus acantholobus, typical male and female roles are reversed. The female courts vigorously and persistently during copulation while keeping one portion of the male’s highly modified pronotum insi...
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15 صفحه اولThanatosis as an adaptive male mating strategy in the nuptial gift–giving spider Pisaura mirabilis
Males and females often experience different optima in mating rate, which may cause evolution of female resistance to matings and male counter adaptations to increase mating rate. Males of the spider Pisaura mirabilis display a spectacular mating behavior involving a nuptial gift and thanatosis (death feigning). Thanatosis in a sexual context is exceptional and was suggested to function as an a...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1996
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.93.13.6499