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Insects --- Sperm competition. --- Insects --- Evolution. --- Reproduction.

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Over the past decade, there has been a vast amount of interest in the subject of human sperm competition. This volume brings together, in one place, a key set of classic and contemporary papers that have examined possible adaptations to sperm competition in humans. In addition to classic papers by Robin Baker & Mark Bellis, it includes later work by other researchers - some developing their ideas, some refuting their findings. As is to be expected in any comparatively new area of investigation, there are conflicting findings and unresolved issues. This, however, should encourage rather than discourage future research in this field. This collection of papers is essential reading for students of evolutionary biology, evolutionary psychology, human sexuality and researchers considering conducting work in this area.

Sperm Motility --- Spermatozoa --- Sexual Behavior --- Sperm competition --- Sex --- Compétition spermatique --- Sexualité --- physiology --- Collected Works. --- EPUB-LIV-FT SPRINGER-B LIVBIOLO

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This book describes about 30 years of theoretical, empirical, and experimental work on butterfly sperm competition. It considers the reproductive morphology and sperm utilisation interests of males and females, which shape the mating tactics of each sex. Females of most butterfly species mate multiple times throughout their lives. The reasons are explored, as well as the numerous adaptations males have developed to prevent future mating and fertilisation by the sperm of other males. In particular, this volume focuses on the role of apyrene sperm. Eupyrene and apyrene sperm dimorphism is most likely a key factor in sperm competition, and the study in butterflies promotes understanding of sexual selection across animal species with sperm polymorphism. This book, describing the evolutionary causes and consequences of the sperm competition in butterflies, is a recommended read for students of behavioural ecology.

Ecology --- Earth & Environmental Sciences --- Sperm competition. --- Butterflies. --- Butterflies --- Breeding. --- Lepidoptera diurna --- Rhopalocera --- Inter-ejaculate competition --- Lepidoptera --- Competition (Biology) --- Sexual selection in animals --- Animal ecology. --- Entomology. --- Animal behavior. --- Animal Ecology. --- Behavioral Sciences. --- Animals --- Animals, Habits and behavior of --- Behavior, Animal --- Ethology --- Animal psychology --- Zoology --- Ethologists --- Psychology, Comparative --- Insects --- Behavior --- Behavioral sciences.

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From award-winning author and ornithologist Tim Birkhead, a sweeping history of the long and close relationship between birds and humans. Since the dawn of human history, birds have stirred our imagination, inspiring and challenging our ideas about science, faith, art, and philosophy. We have worshipped birds as gods, hunted them for sustenance, adorned ourselves with their feathers, studied their wings to engineer flight, and, more recently, attempted to protect them. In Birds and Us, award-winning writer and ornithologist Tim Birkhead takes us on a dazzling epic journey through our mutual history with birds, from the ibises mummified and deified by Ancient Egyptians to the Renaissance fascination with woodpecker anatomy—and from the Victorian obsession with egg collecting to today’s fight to save endangered species and restore their habitats. Spanning continents and millennia, Birds and Us chronicles the beginnings of a written history of birds in ancient Greece and Rome, the obsession with falconry in the Middle Ages, and the development of ornithological science. Moving to the twentieth century, the book tells the story of the emergence of birdwatching and the field study of birds, and how they triggered an extraordinary flowering of knowledge and empathy for birds, eventually leading to today’s massive worldwide interest in birds—and the realization of the urgent need to save them. Weaving in stories from Birkhead’s life as scientist, including far-flung expeditions to wondrous Neolithic caves in Spain and the bustling guillemot colonies of the Faroe Islands, this rich and fascinating book is an unforgettable account of how birds have shaped us, and how we have shaped them.

Birds --- Birds in art. --- Birds (in religion, folklore, etc.) --- Religious aspects. --- Addiction. --- Admiration. --- Aestheticism. --- Animal Behaviour (journal). --- Animal husbandry. --- Anonymity. --- Apex predator. --- Auk. --- Bigamy. --- Birdwatching. --- Brambling. --- Brood parasite. --- Bull-baiting. --- Cafeteria. --- Censure. --- Charles Kingsley. --- Classroom. --- Climate change. --- Coimbatore. --- Common crane. --- Cooperative breeding. --- Cormorant. --- Cornell University. --- Cruelty. --- Culture of ancient Rome. --- Culture. --- Curator. --- Description. --- Dio Chrysostom. --- Dwight D. Eisenhower. --- Elephantiasis. --- Eleventh grade. --- Emblem. --- Emerging adulthood and early adulthood. --- Erectile dysfunction. --- Ethology. --- Explanatory model. --- Falconry. --- G. (novel). --- Great auk. --- Grey heron. --- Grey partridge. --- Guadalupe Island. --- Guillemot. --- Gyrfalcon. --- Hagiography. --- Handbook. --- Holotype. --- Honeycreeper. --- Infrastructure. --- Inkling. --- Interaction Styles. --- International student. --- Irish Sea. --- Isaac Newton. --- Jeremy Paxman. --- John Maynard Smith. --- Killing of animals. --- Lighting. --- Maladministration. --- Maria Edgeworth. --- Medicinal plants. --- Mold. --- Natural environment. --- New Spain. --- Northeast China. --- Ornithology. --- Oskar. --- Paleoanthropology. --- Participation (decision making). --- Pedagogy. --- Philosophy. --- Plankton. --- Plumage. --- Prophecy. --- Publicity. --- Respondent. --- Saqqara. --- School website. --- Science. --- Scientist. --- Severus Alexander. --- Sexual dimorphism. --- Social deprivation. --- Social order. --- Socioeconomic status. --- Sperm competition. --- Spiritism. --- Spitting Image. --- Start the Week. --- Statistic. --- Student council. --- Tit (bird). --- Trogon. --- Ulisse Aldrovandi. --- Umwelt. --- University of Oxford. --- Waterproofing. --- Wigeon. --- Woodcut.