Ejaculate investment and attractiveness in the stalk-eyed fly,Diasemopsis meigenii
نویسندگان
چکیده
منابع مشابه
Ejaculate investment and attractiveness in the stalk-eyed fly, Diasemopsis meigenii
The phenotype-linked fertility hypothesis proposes that male fertility is advertised via phenotypic signals, explaining female preference for highly sexually ornamented males. An alternative view is that highly attractive males constrain their ejaculate allocation per mating so as to participate in a greater number of matings. Males are also expected to bias their ejaculate allocation to the mo...
متن کاملSexual Traits Are Sensitive to Genetic Stress and Predict Extinction Risk in the Stalk-eyed Fly, Diasemopsis Meigenii
The handicap principle predicts that sexual traits are more susceptible to inbreeding depression than nonsexual traits. However, this hypothesis has received little testing and results are inconsistent. We used 11 generations of full-sibling mating to test the effect of inbreeding on sexual and nonsexual traits in the stalk-eyed fly Diasemopsis meigenii. Consistent with the theoretical predicti...
متن کاملVariation in preference for a male ornament is positively associated with female eyespan in the stalk-eyed fly Diasemopsis meigenii.
There is currently much interest in mate preferences for sexual ornaments. However, few studies have focused on individual variation in mate preference despite its importance for the rate and direction of sexual selection. Females of the sexually dimorphic stalk-eyed fly, Diasemopsis meigenii, exhibit an unambiguous rejection response towards unattractive males bearing small ornaments. We inves...
متن کاملStalk-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 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: Ecology and Evolution
سال: 2013
ISSN: 2045-7758
DOI: 10.1002/ece3.544