Human fertility and fitness optimization
نویسندگان
چکیده
منابع مشابه
Human Fertility and Fitness Optimization
Census and other sur\ej data from across the norld releal maJor differences m fertdlt! rates hetueen the more economIcall> debeloped and the less economIcall\ developed socletles The former are slgmficantly more likely than the latter to feature famlhes of tHo children or fewer hlultlple regression analysis shoHs that, among larlous mdlcaters of ‘Umodernlzatlon.” three (female level of educatio...
متن کاملFitness as Survival and Fertility
Can we doubt (remembering that many more individuals are born than can possibly survive) that individuals having any advantage, however slight, would have the best chance of surviving and of procreating their kind.On the other hand, we may feel sure that any variation in the least degree injurious would be rigidly destroyed. This preservation of favourable individual differences and variations,...
متن کاملFitness, inclusive fitness, and optimization
Individual-as-maximizing agent analogies result in a simple understanding of the functioning of the biological world. Identifying the conditions under which individuals can be regarded as fitness maximizing agents is thus of considerable interest to biologists. Here, we compare different concepts of fitness maximization, and discuss within a single framework the relationship between Hamilton’s ...
متن کاملBody fat, menarche, fitness and fertility.
Many well-trained athletes, ballet dancers and women who diet excessively have secondary or primary amenorrhoea. Less extensive training or weight loss may result in anovulatory menstrual cycles, or a shortened luteal phase. These disruptions of reproductive ability are due to hypothalamic dysfunction, which is correlated with weight loss or excessive leanness. It is proposed that these associa...
متن کاملOptimization of inclusive fitness.
The first fully explicit argument is given that broadly supports a widespread belief among whole-organism biologists that natural selection tends to lead to organisms acting as if maximizing their inclusive fitness. The use of optimization programs permits a clear statement of what this belief should be understood to mean, in contradistinction to the common mathematical presumption that it shou...
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ژورنال
عنوان ژورنال: Ethology and Sociobiology
سال: 1988
ISSN: 0162-3095
DOI: 10.1016/0162-3095(88)90009-x