Male body size and male‐male competition: Interspecific variation in poeciliid fishes
نویسندگان
چکیده
منابع مشابه
Autosomal variation for male body size and sperm competition phenotypes is uncorrelated in Drosophila melanogaster.
Correlations between male body size and phenotypes impacting post-copulatory sexual selection are commonly observed during the manipulation of male body size by environmental rearing conditions. Here, we control for environmental influences and test for genetic correlations between natural variation in male body size and phenotypes affecting post-copulatory sexual selection in Drosophila melano...
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An important step in predicting the effects of future increases in UV radiation (UVR) is to evaluate the mechanisms that organisms use to prevent and repair DNA damage and determine how those mechanisms influence UVR sensitivity. Damage is prevented to varying degrees through photoprotection and repaired via two main pathways: nucleotide excision repair and photoenzymatic repair. At present, li...
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Reproductive isolation among locally adapted populations may arise when immigrants from foreign habitats are selected against via natural or (inter-)sexual selection (female mate choice). We asked whether also intrasexual selection through male-male competition could promote reproductive isolation among populations of poeciliid fishes that are locally adapted to extreme environmental conditions...
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The aggregation of parasites among individual hosts is one of the best documented features of parasite populations; we still do not know, however, why certain parasite species are more highly aggregated than other, related species. Here we search for a general explanation of interspecific variation in aggregation levels, based on the relationship between parasite body size and fecundity, transm...
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We propose that the evolution of female preferences can be strongly influenced by linkage of attractive male traits to the Y chromosome and female preferences to the X chromosome in male heterogametic species. Such linkage patterns are predicted by models of the evolution of sexually antagonistic genes. Subsequent recombination of attractive male characters from the Y to the X would create phys...
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ژورنال
عنوان ژورنال: Italian Journal of Zoology
سال: 1996
ISSN: 1125-0003,1748-5851
DOI: 10.1080/11250009609356160