Sexual Selection on male cuticular hydrocarbons via male–male competition and female choice

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Sexual Selection on male cuticular hydrocarbons via male–male competition and female choice

Traditional views of sexual selection assumed that male-male competition and female mate choice work in harmony, selecting upon the same traits in the same direction. However, we now know that this is not always the case and that these two mechanisms often impose conflicting selection on male sexual traits. Cuticular hydrocarbons (CHCs) have been shown to be linked to both social dominance and ...

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Sexual Selection in the Water Spider: Female Choice and MaleMale Competition

When selection acts differently on the body size of males and females, their adult sizes may diverge. The resulting sexual size dimorphism (SSD) covers an astounding range across taxa, with extreme examples in both directions (see Fairbairn et al. 2007). Generally, in most sexually reproducing animals, females are the larger sex (Andersson 1994; Fairbairn et al. 2007), which is mainly explained...

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Sexual selection on cuticular hydrocarbons of male sagebrush crickets in the wild.

Cuticular hydrocarbons (CHCs) play an essential role in mate recognition in insects but the form and intensity of sexual selection on CHCs has only been evaluated in a handful of studies, and never in a natural population. We quantified sexual selection operating on CHCs in a wild population of sagebrush crickets, a species in which nuptial feeding by females imposes an unambiguous phenotypic m...

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Sexual Selection: Male-Male Competition

Aggression. Offensive action, particularly in regard to defending resources. Aggression in defending females and other resources should be favored by selection when there are fewer resources than competitors and when an individual can boost fitness by forcibly removing another individual. Intersexual Selection. Sexual selection due to interactions between the sexes. Mate choice by males or fema...

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Genotype-by-Environment Interactions for Female Mate Choice of Male Cuticular Hydrocarbons in Drosophila simulans

Recent research has highlighted the potential importance of environmental and genotype-by-environment (G×E) variation in sexual selection, but most studies have focussed on the expression of male sexual traits. Consequently, our understanding of genetic variation for plasticity in female mate choice is extremely poor. In this study we examine the genetics of female mate choice in Drosophila sim...

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ژورنال

عنوان ژورنال: Journal of Evolutionary Biology

سال: 2016

ISSN: 1010-061X,1420-9101

DOI: 10.1111/jeb.12875