Sexual selection and human life history.
نویسنده
چکیده
منابع مشابه
The roles of life-history selection and sexual selection in the adaptive evolution of mating behavior in a beetle.
Although there is continuing debate about whether sexual selection promotes or impedes adaptation to novel environments, the role of mating behavior in such adaptation remains largely unexplored. We investigated the evolution of mating behavior (latency to mating, mating probability and duration) in replicate populations of seed beetles Callosobruchus maculatus subjected to selection on life-hi...
متن کاملSexual and lifetime selection on body size in a marine fish: the importance of life-history trade-offs.
Many field measurements of viability and sexual selection on body size indicate that large size is favoured. However, life-history theory predicts that body size may be optimized and that patterns of selection may often be stabilizing rather than directional. One reason for this discrepancy may be that field estimates of selection tend to focus on limited components of fitness and may not fully...
متن کاملCan sexual selection drive female life histories? A comparative study on Galliform birds.
Sexual selection has been identified as a major evolutionary force shaping male life history traits but its impact on female life history evolution is less clear. Here we examine the impact of sexual selection on three key female traits (body size, egg size and clutch size) in Galliform birds. Using comparative independent contrast analyses and directional discrete analyses, based on published ...
متن کاملSex differences, sexual selection, and ageing: an experimental evolution approach.
Life-history (LH) theory predicts that selection will optimize the trade-off between reproduction and somatic maintenance. Reproductive ageing and finite life span are direct consequences of such optimization. Sexual selection and conflict profoundly affect the reproductive strategies of the sexes and thus can play an important role in the evolution of life span and ageing. In theory, sexual se...
متن کاملReproductive ageing and sexual selection on male body size in a wild population of antler flies (Protopiophila litigata).
Little is known about the importance of trade-offs between ageing and other life history traits, or the effects of ageing on sexual selection, particularly in wild populations suffering high extrinsic mortality rates. Life history theory suggests that trade-offs between reproduction and somatic maintenance may constrain individuals with higher initial reproductive rates to deteriorate more rapi...
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عنوان ژورنال:
- Advances in child development and behavior
دوره 30 شماره
صفحات -
تاریخ انتشار 2002