Female Callosobruchus maculatus can maximize long-term fitness through polyandry
نویسندگان
چکیده
منابع مشابه
Why Do Female Callosobruchus maculatus Kick Their Mates?
Sexual conflict is now recognised as an important driver of sexual trait evolution. However, due to their variable outcomes and effects on other fitness components, the detection of sexual conflicts on individual traits can be complicated. This difficulty is exemplified in the beetle Callosobruchus maculatus, where longer matings increase the size of nutritious ejaculates but simultaneously red...
متن کاملSexual dimorphism is associated with population fitness in the seed beetle Callosobruchus maculatus.
The population consequences of sexual selection remain empirically unexplored. Comparative studies, involving extinction risk, have yielded different results as to the effect of sexual selection on population densities make contrasting predictions. Here, we investigate the relationship between sexual dimorphism (SD) and population productivity in the seed beetle Callosobruchus maculatus, using ...
متن کاملLong-term fitness benefits of polyandry in a small mammal, the bank vole Clethrionomys glareolus.
Polyandry, i.e. mating with multiple males within one reproductive event, is a common female mating strategy but its adaptive function is often unclear. We tested whether polyandrous females gain genetic benefits by comparing fitness traits of monandrous (mated twice with a single male) and polyandrous (mated twice with two different males) female bank voles Clethrionomys glareolus. We raised t...
متن کاملCondition dependence of male and female genital structures in the seed beetle Callosobruchus maculatus (Coleoptera: Bruchidae).
Theory predicts that costly secondary sexual traits will evolve heightened condition dependence, and many studies have reported strong condition dependence of signal and weapon traits in a variety of species. However, although genital structures often play key roles in intersexual interactions and appear to be subject to sexual or sexually antagonistic selection, few studies have examined the c...
متن کاملLarval Competition Reduces Body Condition in the Female Seed Beetle, Callosobruchus maculatus
Early body condition may be important for adult behavior and fitness, and is impacted by a number of environmental conditions and biotic interactions. Reduced fecundity of adult females exposed to larval competition may be caused by reduced body condition or shifts in relative body composition, yet these mechanisms have not been well researched. Here, body mass, body size, scaled body mass inde...
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ژورنال
عنوان ژورنال: Behavioral Ecology
سال: 2014
ISSN: 1045-2249,1465-7279
DOI: 10.1093/beheco/aru218