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Author: Harvard University. Museum of Comparative Zoology
Publisher:
ISBN:
Category : Zoology
Languages : en
Pages : 406
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Book Description
Author: Harvard University. Museum of Comparative Zoology
Publisher:
ISBN:
Category : Zoology
Languages : en
Pages : 406
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Harvard University. Museum of Comparative Zoology
Publisher:
ISBN:
Category : Zoology
Languages : en
Pages : 772
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Book Description
Author: Museum of Comparative Zoology (Cambridge, Mass.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 408
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Author: Janet Leonard
Publisher: Oxford University Press
ISBN: 0199717036
Category : Science
Languages : en
Pages : 550
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Book Description
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.
Author: Charles Thomas Brues
Publisher:
ISBN:
Category : Arthropoda
Languages : en
Pages : 684
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 466
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Author: William Eberhard
Publisher: University of Chicago Press
ISBN: 022653474X
Category : Science
Languages : en
Pages : 679
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Book Description
In this lavishly illustrated, first-ever book on how spider webs are built, function, and evolved, William Eberhard provides a comprehensive overview of spider functional morphology and behavior related to web building, and of the surprising physical agility and mental abilities of orb weavers. For instance, one spider spins more than three precisely spaced, morphologically complex spiral attachments per second for up to fifteen minutes at a time. Spiders even adjust the mechanical properties of their famously strong silken lines to different parts of their webs and different environments, and make dramatic modifications in orb designs to adapt to available spaces. This extensive adaptive flexibility, involving decisions influenced by up to sixteen different cues, is unexpected in such small, supposedly simple animals. As Eberhard reveals, the extraordinary diversity of webs includes ingenious solutions to gain access to prey in esoteric habitats, from blazing hot and shifting sand dunes (to capture ants) to the surfaces of tropical lakes (to capture water striders). Some webs are nets that are cast onto prey, while others form baskets into which the spider flicks prey. Some aerial webs are tramways used by spiders searching for chemical cues from their prey below, while others feature landing sites for flying insects and spiders where the spider then stalks its prey. In some webs, long trip lines are delicately sustained just above the ground by tiny rigid silk poles. Stemming from the author’s more than five decades observing spider webs, this book will be the definitive reference for years to come.
Author: Frederick Octavius Pickard-Cambridge
Publisher:
ISBN:
Category : Arachnida
Languages : en
Pages : 508
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Author: Charles A. Woods
Publisher: CRC Press
ISBN: 1420039482
Category : Nature
Languages : en
Pages : 609
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Book Description
As a review of the status of biogeography in the West Indies in the 1980s, the first edition of Biogeography of the West Indies: Past, Present, and Future provided a synthesis of our current knowledge of the systematics and distribution of major plant and animal groups in the Caribbean basin. The totally new and revised Second Edition, Biogeography
