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Sexual Segregation In Vertebrates

Author: Kathreen Ruckstuhl
Publisher: Cambridge University Press
ISBN: 1107320631
Size: 67.52 MB
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Males and females often differ in developmental patterns, adult morphology, ecology and behaviour, and in many mammals males are often larger. Size dimorphism results in divergent nutritional and energetic requirements or reproductive strategies by the sexes, which in turn sometimes causes them to select different forage, use different habitats, and express differing social affinities. Such divergent life-styles often lead males and females to live large parts of their lives separately. Sexual segregation is widespread in animals. Males and females may share the same habitat, but at different times, for example, or they might use different habitats entirely. Why did sexual segregation evolve and what factors contribute to it? Sexual Segregation in Vertebrates explores these questions by looking at a wide range of vertebrates and is aimed as a synthesis of our current understanding and a guide for future research.

Primate Sexuality

Author: Alan F. Dixson
Publisher: Oxford University Press
ISBN: 0199544646
Size: 79.92 MB
Format: PDF
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A comprehensive synthesis of current knowledge of the evolution and physiological control of sexual behaviour in the primates - the prosimians, monkeys, apes, and humans. No other book written on the subject exhibits such comparative breadth or technical depth. The new edition incorporates advances in the field over the last decade.

Advances In Marine Biology

Author: D. W. Sims
Publisher: Academic Press
ISBN: 0123743516
Size: 37.99 MB
Format: PDF, Docs
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Advances in Marine Biology was first published in 1963 under the founding editorship of Sir Frederick S. Russell, FRS. Now edited by D.W. Sims (Marine Biological Association Laboratory, Plymouth, UK), with an internationally renowned Editorial Board, the serial publishes in-depth and up-to-date reviews on a wide range of topics which will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology, and biological oceanography. Eclectic volumes in the series are supplemented by thematic volumes on such topics as The Biology of Calanoid Copepods. * Highly cited review papers and thematic volumes in the broad area of marine biology * Complete review and synthesis of scientific work that exposes newcomers to a thorough understanding of the background in the field * Special attention given to high-quality figures and tables with color throughout

Fish Population Dynamics Monitoring And Management

Author: Ichiro Aoki
Publisher: Springer
ISBN: 443156621X
Size: 65.11 MB
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This book explores how we can solve the urgent problem of optimizing the use of variable, uncertain but finite fisheries resources while maintaining sustainability from a marine-ecosystem conservation perspective. It offers readers a broad understanding of the current methods and theory for sustainable exploitation of fisheries resources, and introduces recent findings and technological developments. The book is divided into three parts: Part I discusses fish stock dynamics, and illustrates how ecological processes affecting life cycles and biological interactions in marine environments lead to fish stock variability in space and time in major fish groups; small pelagic fish, demersal fish and large predatory fish. These insights shed light on the mechanisms underlying the variability in fish stocks and form the essential biological basis for fisheries management. Part II addresses the technologies and systems that monitor changes in fisheries resources and marine ecosystems using two approaches: fishery-dependent and fishery-independent data. It also describes acoustic surveys and biological sampling, as well as stock assessment methods. Part III examines management models for effectively assessing the natural variability in fisheries resources. The authors explore ways of determining the allowable catch in response to changes in stock abundance and how to incorporate ecological processes and monitoring procedures into management models. This book offers readers a broad understanding of sustainable exploitation as well as insights into fisheries management for the next generation.

Sex Chromosomes And Sex Determination In Vertebrates

Author: Alberto J. Solari
Publisher: CRC Press
ISBN: 9780849345715
Size: 53.29 MB
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The cloning of the SRY gene and the attainment of XX mice transgenic for the Sry gene opened a new era in research on sex determination. This book surveys current knowledge of sex chromosomes and sex determination in all vertebrate classes, relying on the restriction of genetic recombination in sex chromosomes as the unifying concept of this subject. The book's interdisciplinary approach integrates contributions from the fields of cytogenetics, molecular biology, developmental biology, and evolutionary genetics. A detailed treatment of the meiotic behavior of sex chromosomes is featured, and the entire text is supplemented by numerous schemes, drawings, and electron micrographs. The book will be valuable to general cytogeneticists, vertebrate zoologists, and veterinarian and medical practitioners interested in the foundations of sex determination and the current knowledge of sex chromosomes. It will also interest students in advanced undergraduate and graduate courses in these areas.