The role of body size on the outcome of mating interactions in Drosophila melanogaster

摘要: Sexual selection is the process by which some individuals produce more and/or better quality offspring than others because they are at securing mates. While this may be accomplished defeating same-sex rivals (intrasexual selection), of one sex (typically females) also “decide” on suitability opposite males), resulting in intersexual attractive traits. a great deal scrutiny has focused how sexual influences male display traits, much less been directed toward factors underlying female preference, including genetic variation, as well extent to both sexes involved mate choice. In Drosophila melanogaster, model species for study selection, previous studies have examined role body size variation single behaviours and outcomes related courtship copulation. However, few simultaneously varied size. my first (Chapter 2), I experimentally paired flies from across wide spectrum phenotypes quantified several behavioural traits: time initiation, length found that absolute differences affected relative initiation. Chapter 2 demonstrated choice expressed within generation individuals, whether individual preference females had component yet determined experimentally. second 3), investigated if