The Evolution of Primary Sexual Characters in Animals
Janet Leonard, Alex Cordoba-Aguilar
Oxford University Press, Jul 16, 2010 - Science - 552 pages
Primary sexual traits, those structures and processes directly involved in reproduction, are some of the most diverse, specialized, and bizarre in the animal kingdom. Moreover, reproductive traits are often species-specific, suggesting that they evolved very rapidly. This diversity, long the province of taxonomists, has recently attracted broader interest from evolutionary biologists, especially those interested in sexual selection and the evolution of reproductive strategies. Primary sexual characters were long assumed to be the product of natural selection, exclusively. A recent alternative suggests that sexual selection explains much of the diversity of "primary" sexual characters. A third approach to the evolution of reproductive interactions after copulation or insemination has been to consider the process one of sexual conflict. That is, the reproductive processes of a species may reflect, as does the mating system, evolution acting on males and on females, but in different directions. In this volume, authors explore a wide variety of primary sexual characters and selective pressures that have shaped them, from natural selection for offspring survival to species-isolating mechanisms, sperm competition, cryptic female choice and sexual arms races. Exploring diverse reproductive adaptations from a theoretical and practical perspective, The Evolution of Primary Sexual Characters will provide an unparalleled overview of sexual diversity in many taxa and an introduction to the issues in sexual selection that are changing our view of sexual processes.
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Primary Sexual Characters in Selected Taxa
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American Naturalist animals anisogamy Araneae Arnqvist Baur beetle Behavioral Ecology Birkhead bursa bursa copulatrix coevolution complex copulation copulatory Cordero courtship cryptic female choice Dioecious diversity Drosophila duct Eberhard eggs ejaculate Eupnoi evolved example female’s figure fishes function gametes gastropods genetic genital genitalia genitalic genus Ghiselin Gowaty groups Hosken Huber hypothesis insects insemination internal fertilization intromittent Invertebrate Journal of Zoology male and female male genitalia male’s mating plug mating system mechanisms molecular Mollusca morphology natural selection offspring Olsson Opiliones opisthobranchs organs oviduct oviposition ovipositor patterns penis Peretti phallus phylogenetic phylogeny Pitnick populations predicted produce prosobranchs release reproductive system role Royal Society salamanders sclerites scorpions seminal receptacle sexual characters sexual conflict sexual selection Simmons simultaneously hermaphroditic Siva-Jothy snail Society of London Sociobiology spawning species species-specific sperm competition sperm storage sperm transfer spermatheca spermatophore spermatozoa spiders structures studies suggested taxa testes testis tion traits University Press variation