Stalk-eyed flies
نویسندگان
چکیده
منابع مشابه
Stalk-eyed flies
success because in this highly competitive business, many males’ bowers are rarely visited by females. The researchers assessed the quality of the bowers in terms of the density and thickness of the sticks used in its construction and also its symmetry. They also checked the decorations on display and grouped them into five categories: artificial and yellow, brown, blue and white natural. The b...
متن کاملRapid evolution of asymmetric reproductive incompatibilities in stalk-eyed flies.
The steps by which isolated populations acquire reproductive incompatibilities remain poorly understood. One potentially important process is postcopulatory sexual selection because it can generate divergence between populations in traits that influence fertilization success after copulation. Here we present a comprehensive analysis of this form of reproductive isolation by conducting reciproca...
متن کاملMeiotic drive alters sperm competitive ability in stalk-eyed flies.
Meiotic drive results when sperm carrying a driving chromosome preferentially survive development. Meiotic drive should therefore influence sperm competition because drive males produce fewer sperm than non-drive males. Whether meiotic drive also influences the competitive ability of sperm after ejaculation is unknown. Here we report the results from reciprocal crosses that are designed for est...
متن کاملRapid evolution of postzygotic reproductive isolation in stalk-eyed flies.
We test the relative rates of evolution of pre- and postzygotic reproductive isolation using eight populations of the sexually dimorphic stalk-eyed flies Cyrtodiopsis dalmanni and C. whitei. Flies from these populations exhibit few morphological differences yet experience strong sexual selection on male eyestalks. To measure reproductive isolation we housed one male and three female flies from ...
متن کاملThe complexity of mating decisions in stalk‐eyed flies
All too often, studies of sexual selection focus exclusively on the responses in one sex, on single traits, typically those that are exaggerated and strongly sexually dimorphic. They ignore a range of less obvious traits and behavior, in both sexes, involved in the interactions leading to mate choice. To remedy this imbalance, we analyze a textbook example of sexual selection in the stalk-eyed ...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2005
ISSN: 0960-9822
DOI: 10.1016/j.cub.2005.07.015