Nuptial gifts fail to resolve a sexual conflict in an insect
نویسندگان
چکیده
منابع مشابه
Sexual conflict over nuptial gifts in insects.
Edible and seminal gifts that male arthropods transfer to their mates range from important material donations to items that provide little direct benefit. Recent reviews and research have emphasized the negative effect of gifts on female fitness, suggesting that male donations reduce the female's remating rate below her optimum or even that nuptial feeding is a net detriment to her fitness. How...
متن کاملNuptial gifts
Figure 1. Nuptial gifts of insects. An array of nuptial gifts provided by male insects. Top left: during mating, a female dance fly (Diptera: Empididae) feeds upon a dead insect provided by her mate (Photo: Rob Knell). Top right: a male scorpionfly (Mecoptera: Panorpodidae) secretes a white salivary mass that will be consumed by a female during mating (Photo: Arp Kruithof). Bottom left: after m...
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In decorated crickets, Gryllodes sigillatus, the spermatophore that a male transfers at mating includes a gelatinous spermatophylax that the female consumes, delaying her removal of the sperm-filled ampulla. Male fertilization success increases with the length of time females spend feeding on the spermatophylax, while females may benefit by prematurely discarding the spermatophylaxes of undesir...
متن کاملMolecular dissection of nuptial gifts in divergent strains of Ostrinia moths: Nuptial gifts in Ostrinia moths
Seminal fluid proteins (SFPs) produced in the male accessory glands and ejaculatory duct are subject to strong sexual selection, often evolve rapidly and therefore may play a key role in reproductive isolation and species formation. However, little is known about reproductive proteins for species in which males transfer ejaculate to females using a spermatophore package. By combining RNA sequen...
متن کاملUnpredictable environments, nuptial gifts and the evolution of sexual size dimorphism in insects : an experiment
Many insects have a mating system where males transfer nutrients to females at mating, which are often referred to as ‘nuptial gifts ’. Among butterflies, some of the characteristic features of these species are polyandry (females mate multiple times), and relatively large male ejaculates. When males produce part of the resources used for offspring, the value of body size might then increase fo...
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ژورنال
عنوان ژورنال: BMC Evolutionary Biology
سال: 2008
ISSN: 1471-2148
DOI: 10.1186/1471-2148-8-204