منابع مشابه
Sexual selection and mate choice.
The past two decades have seen extensive growth of sexual selection research. Theoretical and empirical work has clarified many components of pre- and postcopulatory sexual selection, such as aggressive competition, mate choice, sperm utilization and sexual conflict. Genetic mechanisms of mate choice evolution have been less amenable to empirical testing, but molecular genetic analyses can now ...
متن کاملSEXUAL SELECTION. Irrationality in mate choice revealed by túngara frogs.
Mate choice models derive from traditional microeconomic decision theory and assume that individuals maximize their Darwinian fitness by making economically rational decisions. Rational choices exhibit regularity, whereby the relative strength of preferences between options remains stable when additional options are presented. We tested female frogs with three simulated males who differed in re...
متن کاملChapter 10 --sexual Ornaments and Mate Choice Mate Choice and Sexual Ornaments
Get out of your chair and go look at some animals behaving. I hope that spring is in the air so that you can see animals courting and mating. Look at insects, birds, mammals, or reptiles. Go to the beach and look at the fiddler crabs. So sad if the dead of winter has set in and animals aren’t engaged in mating rituals. Look at fish in an aquarium. Go to a tropical fish store and look at a tank ...
متن کاملSexual imprinting in human mate choice.
Animal and human studies have shown that individuals choose mates partly on the basis of similarity, a tendency referred to as homogamy. Several authors have suggested that a specific innate recognition mechanism, phenotypic matching, allows the organism to detect similar others by their resemblance to itself. However, several objections have been raised to this theory on both empirical and the...
متن کاملSexual Selection and Condition-Dependent Mate Preferences
The last decade has witnessed considerable theoretical and empirical investigation of how male sexual ornaments evolve. This strong male-biased perspective has resulted in the relative neglect of variation in female mate preferences and its consequences for ornament evolution. As sexual selection is a co-evolutionary process between males and females, ignoring variation in females overlooks a k...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Trends in Ecology & Evolution
سال: 2006
ISSN: 0169-5347
DOI: 10.1016/j.tree.2006.03.015