Experimental Changes in Resource Structure and Male Density: Size-Related Differences in Mating Success Among Male Scatophaga stercoraria
نویسندگان
چکیده
منابع مشابه
Sperm Displacement in the Yellow Dung Fly, Scatophaga stercoraria: An Investigation of Male and Female Processes.
Despite the ubiquity with which patterns of sperm utilization have been studied, the mechanisms underlying fertilization in insects are far from clear. One well-studied system is the yellow dung fly, in which the last male's ejaculate is thought to displace rival sperm from the female's sperm stores. Here we follow the movement of the copulating male's ejaculate through the female's reproductiv...
متن کاملSize-dependent alternative male mating tactics in the yellow dung fly, Scathophaga stercoraria.
Whenever males can monopolize females and/or resources used by females, the opportunity for sexual selection will be great. The greater the variation among males in reproductive success, the greater the intensity of selection on less competitive males to gain matings through alternative tactics. In the yellow dung fly, Scathophaga stercoraria, males aggressively compete for access to receptive,...
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Recent research has demonstrated that exposure to ginger root oil (Zingiber officinale Roscoe, which contains α-copaene) significantly increases the mating success of mass-reared, sterile males of the Mediterranean fruit fly, Ceratitis capitata (Wiedemann). The present study had two main objectives. First, I assessed whether mass-reared males gain an advantage through exposure to natural source...
متن کاملSuccess breeds success in mating male reed frogs (Hyperolius marmoratus).
Studies of the distribution of mating success among males in frog choruses typically seek to identify specific phenotypic attributes that confer a higher mating success on certain individual males. These attributes invariably relate to competition among males: either direct competition in the form of aggression, or competition to attract and be chosen by females. In this paper, we present evide...
متن کاملDensity-dependent male mating harassment, female resistance, and male mimicry.
Genetic variation in female resistance and tolerance to male mating harassment can affect the outcome of sexually antagonistic mating interactions. We investigated female mating rates and male mating harassment in natural populations of a damselfly (Ischnura elegans). This damselfly species has a heritable sex-limited polymorphism in females, where one of the morphs is a male mimic (androchrome...
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ژورنال
عنوان ژورنال: Evolution
سال: 1982
ISSN: 0014-3820
DOI: 10.2307/2408049