Science -- West et al. 290 (5490): 288
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چکیده
Evolutionary biologists have developed an excellent understanding of the selective factors that shape the way in which a given organism allocates resources to male and female offspring•a process called sex allocation (1_). Studies of sex allocation have provided explanations for a wide range of phenomena•for example, the variation among animals in the proportion of offspring that are male (sex ratio), pollen-ovule ratios in plants, and the age of sexual transition in organisms such as certain coral reef fish that change sex during their lifetime (1, 2). The strength of empirical support for the existence of sex allocation and the selective factors that shape it allows studies of sex allocation to address more detailed questions about natural selection. Furthermore, sex allocation theory can be used to elucidate the population structure and epidemiology of medically important pathogens such as the protozoan parasites that cause malaria. K
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تاریخ انتشار 2002