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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Vertebrates

Reproductive Biology and Phylogeny of Lizards and Tuatara (Hardcover): Justin L Rheubert, Dustin S Siegel, Stanley E Trauth Reproductive Biology and Phylogeny of Lizards and Tuatara (Hardcover)
Justin L Rheubert, Dustin S Siegel, Stanley E Trauth
R5,643 Discovery Miles 56 430 Ships in 12 - 17 working days

Reproductive Biology and Phylogeny of Lizards and Tuatara is a remarkable compendium of chapters written by the world's leading experts from over four continents. The book begins with a chapter recounting historical discoveries in reproductive biology and a review of phylogenetics and up-to-date hypotheses concerning evolutionary relationships among lizards. Following these chapters are detailed reviews with additional new data concerning chemical communication, sexual selection, reproductive cues, female reproductive anatomy, female reproductive cycles, oogenesis, parthenogenesis, male reproductive anatomy, male reproductive cycles, spermatogenesis, reproductive investment, viviparity and placentation, multiple paternity, and parental care. The book culminates in two chapters on tuatara reproduction giving unique insight into evolutionary patterns in reproductive biology in squamates and tuatara. This is an essential resource for anyone studying reproduction in reptiles and/or vertebrates and offers a fascinating read for those interested in reproductive biology.

Primates of Western Uganda (Hardcover, 2006 ed.): Nicholas E. Newton-Fisher, Hugh Notman, James Durward Paterson, Vernon... Primates of Western Uganda (Hardcover, 2006 ed.)
Nicholas E. Newton-Fisher, Hugh Notman, James Durward Paterson, Vernon Reynolds
R6,619 Discovery Miles 66 190 Ships in 12 - 17 working days

This volume covers aspects of ecology, behavior, genetics, taxonomy, 'cultural' patterns, hunting by non-human primates, physiology, dietary chemistry, and ecotourism, in several major clades of primates from galagos and pottos, through cercopithecoids, to hominoids.

Field Guide to Birds of Senegal and The Gambia (Paperback): Nik Borrow, Ron Demey Field Guide to Birds of Senegal and The Gambia (Paperback)
Nik Borrow, Ron Demey
R708 Discovery Miles 7 080 Ships in 12 - 17 working days

This comprehensive and fully updated edition of Birds of Senegal and The Gambia is the ultimate guide for travellers and birdwatchers visiting one of Africa’s richest birdwatching regions. The Gambia, together with the country that envelops it, Senegal, has an avifauna of more than 700 regularly occurring species, including many Western Palearctic migrants from September to April, and a significant list of highly sought-after resident West African birds, including the Egyptian Plover. This authoritative guide covers all species, including details of all residents, migrants and known vagrants. Senegal and The Gambia offer a true wealth of birdlife, including a fantastic selection of Sahel specialities that are far more easily seen here than anywhere else. Senegal has become a reliable locality for Golden Nightjar, Quail-plover and Cricket Warbler, and the near-endemic Mali Firefinch occurs in the southeast of the country. Birdwatchers in this region can also find Savile’s Bustard, Adamawa Turtle Dove, Little Grey Woodpecker, Yellow Penduline Tit, Sudan Golden Sparrow and Exclamatory Paradise Whydah, while the Saloum delta’s huge roost of tens of thousands of African Swallow-tailed Kites is one of the world's top birding spectacles. More than 140 stunning colour plates depict every species and also comprehensively cover all the distinct plumages and subspecies likely to be encountered. Concise species accounts describe key identification features, status, range, habitat and voice, with fully updated distribution maps for each species. This compact guide is an essential companion for any birder visiting this rich and varied area of Western Africa.

Sturkie's Avian Physiology (Hardcover, 7th edition): Colin G. Scanes, Sami Dridi Sturkie's Avian Physiology (Hardcover, 7th edition)
Colin G. Scanes, Sami Dridi
R4,103 R3,651 Discovery Miles 36 510 Save R452 (11%) Ships in 12 - 17 working days

Sturkie's Avian Physiology, Seventh Edition is the classic comprehensive single volume on the physiology of domestic as well as wild birds. This latest edition is thoroughly revised and updated and features several new chapters with entirely new content on such topics as vision, sensory taste, pain reception, evolution, and domestication. Chapters throughout have been greatly expanded due to the many recent advances in the field. This book is written by international experts in different aspects of avian physiology. For easy reading and searches, this book is structured under a series of themes, beginning with genomic studies, sensory biology and nervous systems, and major organs. The chapters then move on to investigate metabolism, endocrine physiology, reproduction, and finally cross-cutting themes such as stress and rhythms. New chapters on feathers and skin are featured as well. Sturkie's Avian Physiology, Seventh Edition is an important resource for ornithologists, poultry scientists, and other researchers in avian studies. It is also useful for students in avian or poultry physiology, as well as avian veterinarians.

Sharks: Conservation, Governance and Management - Conservation, governance and management (Hardcover): Erika J. Techera,... Sharks: Conservation, Governance and Management - Conservation, governance and management (Hardcover)
Erika J. Techera, Natalie Klein
R4,324 Discovery Miles 43 240 Ships in 12 - 17 working days

The key aim of this book is to explore the global conservation and management of sharks. There has been a rapid decline in populations of many shark species, while new science has emerged of the critical role they play in marine ecosystems. However, the authors show that conservation law and policy have been slow to develop, with only a small number of iconic species being protected worldwide. The increase in fishing impact - primarily through shark finning and by-catch - has led to shark conservation receiving greater international attention in recent years. The book explores our current knowledge and status of the law and science in relation to sharks with a particular focus on improving frameworks for their conservation and management. Recent trends are analysed, including shark finning bans that have been put in place in several countries, the widening number of nations establishing shark sanctuaries and the growth of shark-based tourism. The efficacy of current listing processes for endangered species and fisheries regulations is also examined. Tourism is explored as an alternative to fishing and the risks and impacts associated with this industry are analysed. Contributors include leading authorities from universities and conservation organizations in North America, Europe and Australia. A common theme is to emphasise the importance of collaborative governance between various interest groups and the need for inter-disciplinary research and management approaches that are necessary to address the decline in sharks.

The Physiology of Fishes (Paperback, 5th edition): Suzanne Currie, David H. Evans The Physiology of Fishes (Paperback, 5th edition)
Suzanne Currie, David H. Evans
R2,571 Discovery Miles 25 710 Ships in 12 - 17 working days

The fifth edition of The Physiology of Fishes represents a compendium of knowledge across fish physiology, collecting up-to-date research into an easy-to-access single textbook. Written by the leaders in the field, it provides a comprehensive, accessible review of the core topics, integrating physiology with environmental science, ecology, evolution, and molecular cell biology. New chapters address Epigenetics, Biomechanics and Locomotion, and Behaviour and Learning. Each chapter contains an extensive bibliography, providing readers with the best sources from the primary literature. Almost three decades after the publication of the first edition, this book remains the only published single-volume work on fish physiology. The fifth edition provides an important reference for new students of fish biology, marine and freshwater biologists, ichthyologists, fisheries scientists, and comparative physiologists.

Deferring Development - Setting Aside Cells for Future Use in Development and Evolution (Paperback): Brian K. Hall, Cory... Deferring Development - Setting Aside Cells for Future Use in Development and Evolution (Paperback)
Brian K. Hall, Cory Douglas Bishop
R1,390 Discovery Miles 13 900 Ships in 12 - 17 working days

This volume examines cells set aside during development for use later in ontogeny or in adult life. There is no single term for such cells. The cells explored fall within several major categories - stem cells, set-aside cells (in echinoderm larvae), imaginal discs in insects such as Drosophila, meristems (plants), blastemata (regeneration in amphibians), neoblasts (regeneration in planarians). The book compares and contrasts these cell types and the environments (niches) in which they operate with the aim of unravelling any relationships between them, between their activation in development, and in their evolution. Key Features Explores the nature of deferred-use cells in evolutionary and developmental context. Reviews the mechanisms of development of set-aside cells, such as stem cells, meristems, and imaginal discs. Provides phylogenetic overview of different types of deferred-use cells. Compares and contrasts different theories on the origin of deferred-use cells. Related Titles Calegari, F. & C. Waskow, eds. Stem Cells: From Basic Research to Therapy (ISBN 978-1-4822-0775-0) Cabral, J. M. S. & C. L. da Silva, eds. Bioreactors for Stem Cell Expansion and Differentiation (ISBN 978-1-4987-9590-6) Kong, H., A. J. Putnam, & L. B. Schook, eds. Stem Cells and Revascularization Therapies (ISBN 978-1-4398-0323-3) Schaffer, D., J. D. Bronzino, & D. R. Peterson, eds. Stem Cell Engineering: Principles and Practices (ISBN 978-1-4398-7204-8)

Biology and Ecology of Sardines and Anchovies (Hardcover): Konstantinos Ganias Biology and Ecology of Sardines and Anchovies (Hardcover)
Konstantinos Ganias
R4,736 Discovery Miles 47 360 Ships in 12 - 17 working days

Apart from being commercially and socially significant, anchovies and sardines populations occupy crucial positions in the oceans' ecosystems. Low in the food chain, clupeoids tend towards abundance, as if their purpose in life was to be eaten and fuel the upper levels of marine trophic chains. The present book covers a broad spectrum of topics on the biology (sytematics, phylogeography, reproduction, feeding) and ecology (habitat characterization, recruitment variability) of anchovies and sardines. It also puts together important information on the state of their fisheries, exploitation and management.

Complete Illustrated Encyclopedia of Birds of the World (Hardcover): Alderton David Complete Illustrated Encyclopedia of Birds of the World (Hardcover)
Alderton David
R745 R649 Discovery Miles 6 490 Save R96 (13%) Ships in 9 - 15 working days

This comprehensive encyclopedia of the world's birds presents a fantastic visual guide to the major avian species and families, from America's tiniest insect-catchers to the giant, flightless species still living on the African plains. A 420-page directory features fully illustrated entries for hundreds of birds, as well as detailing many other related species. The activities of birds are explored in a natural history section, detailing anatomy, flight, feeding, pairing and nesting. There are also tips on birdwatching for those who want to get a closer look at these fascinating creatures. This is an authoritative and sumptuous guide to the diversity of bird life across the globe.

Field Guide to Birds of the West Indies (Paperback, 2nd edition): Allan Keith, Herbert Raffaele, Janis Raffaele, James Wiley,... Field Guide to Birds of the West Indies (Paperback, 2nd edition)
Allan Keith, Herbert Raffaele, Janis Raffaele, James Wiley, Orlando Garrido; Illustrated by …
R610 Discovery Miles 6 100 Ships in 12 - 17 working days

Birds of the West Indies is the first field guide that covers and depicts all birds known to occur in the region, including infrequently occurring and introduced forms. Now fully updated and expanded, this stunningly illustrated book features detailed accounts of more than 600 species, describing field marks, range, status, voice and habitat. More than 100 beautiful colour plates depict plumages of all species, and the book includes distribution maps, a colour code for endemics, and an incisive introduction that discusses avifaunal changes in the West Indies over the past fifteen years.

Bird Calls for Beginners of Southern Africa (Paperback): Doug Newman Bird Calls for Beginners of Southern Africa (Paperback)
Doug Newman
bundle available
R170 R133 Discovery Miles 1 330 Save R37 (22%) Ships in 5 - 10 working days

How many of the more common birds of southern African can you identify from their calls?

Birdsong is everywhere, whether we live in the city or in the country. Without the musical backdrop of our feathered friends, our gardens, parks and fields would be relatively silent – and much the poorer for it. Often we hear their calls, but cannot see the birds making them.

  • The enclosed CD features 60 common bird calls.

  • The book features full-colour photographs of the birds, distribution maps and interesting text about their habits, feeding and nesting routines, and their calls.
Invaluable for birders of all ages, this CD and book will open up a new world of bird recognition and behaviour, and perhaps be the start of an abiding interest in these most tuneful of our fellow inhabitants.
Biology of Butterflyfishes (Hardcover): Morgan S. Pratchett, Michael L. Berumen, B.G. Kapoor Biology of Butterflyfishes (Hardcover)
Morgan S. Pratchett, Michael L. Berumen, B.G. Kapoor
R3,893 Discovery Miles 38 930 Ships in 12 - 17 working days

Butterflyfishes (family Chaetodontidae) are a highly conspicuous component of fish fauna on coral reefs throughout the world. In light of their strong dependence on coral, they are often regarded as the epitome of coral reef fishes. This volume examines the ecology and conservation of coral reef butterflyfishes. It provides important insights on their evolution and key events and adaptations that have led to their proliferation within coral reef ecosystems. Key to the longevity of butterflyfishes is the evolution of coral-feeding-a central focus of the ecological chapters in this volume. The book also highlights key threats and challenges related to the conservation of butterflyfishes and ends with an overview of current and future research directions.

A Photographic Guide to Mammals of Southern, Central and East Africa (Paperback): Chris Stuart A Photographic Guide to Mammals of Southern, Central and East Africa (Paperback)
Chris Stuart
bundle available
R250 R195 Discovery Miles 1 950 Save R55 (22%) Ships in 5 - 10 working days

More than 1 000 mammal species occur in Africa south of the Sahara Desert. These creatures vary in size from the massive elephant to the tiniest bats, shrews and mice. A Photographic Guide to Mammals of Southern, Central and East Africa was compiled with a view to easing identification of many of the larger and more conspicuous mammals in the region, as well as some of the smaller and more unusual ones.

This compact, easy-to-use guide features:

- 152 of the region's mammal species

- key identification features showing how to differentiate between similar species

- distribution maps and a list of major parks and reserves indicating where species are likely to be seen

- quick reference key on inside cover

- thumbnail silhouettes of each family group for quick identification

This new revised edition is an ideal pocket-sized travelling companion for nature lovers and visitors to nature reserves and wildlife areas.

Small Cetaceans of Japan - Exploitation and Biology (Paperback): Toshio Kasuya Small Cetaceans of Japan - Exploitation and Biology (Paperback)
Toshio Kasuya; Edited by William Perrin
R1,438 Discovery Miles 14 380 Ships in 12 - 17 working days

This book summarizes and analyzes the biology, ecology, exploitation and management of small cetaceans in Japan. It describes the various types of cetacean fisheries in Japan and their historical development, the life histories and ecologies of the main species involved, and the history and problems of conservation and management. The data show that in some cases the number of small cetaceans harvested exceed sustainable limits and have led to depletion of populations. The book provides a case study of what can go wrong when the needs of industry and conservation collide. The descriptions of life history and ecology are relevant to issues of conservation and management, not just for cetaceans, but for all fisheries around the world.

The Mentality of Apes (Paperback): Khler Wolfgang The Mentality of Apes (Paperback)
Khler Wolfgang
R1,473 Discovery Miles 14 730 Ships in 12 - 17 working days

Wolfgang Koehler demonstrated that chimpanzees could solve problems by applying insight. His research showed that the intellectual gap between humans and chimpanzees was much narrower than previously thought. The work was revolutionary when originally published in 1917 in German, but it was largely ignored for decades because it violated the conventional wisdom that animal behavior is simply the result of instinct or conditioning.

Migration Strategies of Birds of Prey in Western Palearctic (Paperback): Michele Panuccio, Ugo Mellone, Nicolantonio Agostini Migration Strategies of Birds of Prey in Western Palearctic (Paperback)
Michele Panuccio, Ugo Mellone, Nicolantonio Agostini
R2,487 Discovery Miles 24 870 Ships in 12 - 17 working days

Given their roles in the ecosystem, raptors are widely considered the flagship or umbrella species among birds. Most species undertake a seasonal journey that is impressive because of the length, and the imposing natural barriers such as deserts and seas that they fly over. The migration of birds of prey has unique characteristics in the animal world because of their morphology and flight style. The flying path of Afro-Palearctic migrants between breeding and wintering grounds is determined by several factors such as morphology of the birds, geography, behavioural adaptations. The book analyses the migration patterns of raptors along the Afro-Palearctic migratory system, and summarizes the recent research on these top predator species. Behavioural adaptations such as the importance of social interactions and the modulation of the different flight styles as well as ecological interactions with the encountered environment and weather conditions en route are described in the book. Moreover, the impact of climate change on the migratory behaviour and key conservation issues are discussed. The book provides an overview of the migratory characteristics and flyway patterns of all European raptors species and also some Asian ones. These chapters have been written by some of the most important raptor specialists, giving a complete picture of the different migration strategies on the basis of both traditional methods and new technologies.

Photographic and Descriptive Musculoskeletal Atlas of Orangutans - with notes on the attachments, variations, innervations,... Photographic and Descriptive Musculoskeletal Atlas of Orangutans - with notes on the attachments, variations, innervations, function and synonymy and weight of the muscles (Hardcover, New)
Rui Diogo, Josep M. Potau, Juan F. Pastor, Felix J. dePaz, Mercedes Barbosa, …
R4,998 Discovery Miles 49 980 Ships in 12 - 17 working days

Orangutans, together with chimpanzees and gorillas, are our closest living relatives. Photographic and Descriptive Musculoskeletal Atlas of Orangutans, the first photographic and descriptive musculoskeletal atlas of the genus Pongo, adopts the same format as the photographic atlases of Gorilla, Pan and Hylobates previously published by the same authors. These four books are part of a series of monographs that will set out the comparative and phylogenetic context of the gross anatomy and evolutionary history of the soft tissue morphology of modern humans and their closest relatives. The present atlas, which includes detailed high-quality photographs of musculoskeletal structures from most anatomical regions of the body as well as textual information about the attachments, innervation, function and weight of the respective muscles, is based on dissections of five orangutans and on an extensive review of the literature. It provides an updated review of the anatomical variations within orangutans as well as an extensive list of the synonyms used in the literature to designate the structures we discuss. It will be of interest to students, teachers and researchers studying primatology, comparative anatomy, functional morphology, zoology, and physical anthropology and to medical students, doctors and researchers who are curious about the origin, evolution, homology and variations of the musculoskeletal structures of modern humans.

Evolution of Life Histories of Mammals - Theory and Pattern (Hardcover): Mark S. Boyce Evolution of Life Histories of Mammals - Theory and Pattern (Hardcover)
Mark S. Boyce
R1,746 Discovery Miles 17 460 Ships in 12 - 17 working days

Mammals range in body size from the gigantic blue whale to the tiny Etruscan shrew. Elephants and man may live for nearly one hundred years, while most shrews die before they are three months old. During the past decade, mammalogists and evolutionary biologists have begun to unravel the numerous factors that shape the enormous diversity of mammal life histories. In this volume, leading scientists provide a variety of perspectives on the newest theories in this active field of study. The principle uniting all studies of life history evolution is adaptation by natural selection. The first chapters in the book discuss this topic, offering evolutionary interpretations of geographic variation in mammal life histories, explaining how natural selection operates in fluctuating environments, introducing evolutionary predictions of demographic mathematics, and integrating life histories with behavioral ecology. The next chapters offer functional interpretations of the importance of body size in the life history. Next, several essays explain how developments in quantitative genetics have enabled us to distinguish between genetic and environmental components of variation within and between species. With this as a basis, the chapters that follow draw from principles of natural selection, allometry, and genetics to interpret differences among species of mammals. The book concludes with speculations on various areas where research seems most urgent for the development of a comprehensive understanding of mammal life history evolution. According to the authors, the field is rich with questions, and opportunities abound for both theoretical and empirical research.

Reindeer and Caribou - Health and Disease (Paperback): Morten Tryland, Susan Kutz Reindeer and Caribou - Health and Disease (Paperback)
Morten Tryland, Susan Kutz
R2,071 Discovery Miles 20 710 Ships in 12 - 17 working days

This book is a comprehensive presentation of health and diseases in reindeer and caribou, or just Rangifer, a key Circumarctic species with broad social and ecological value. It is an essential reference for anyone interested in the biology and health of wild or semi-domesticated reindeer and caribou, and is more broadly relevant for those with interests in other species of free-ranging and captive cervids. Beginning with a general introduction to Rangifer as a species, it then focuses on Rangifer "health" as a concept and describes the determinants of health at an individual and population level. Chapters cover a range of topics from nutrition and feeding to stress, non-infectious and infectious diseases, meat hygiene, capture and restraint, diagnosis and treatment of health issues, and finally, potential impacts of climate change on health of Rangifer. Reindeer and Caribou: Health and Disease compiles extensive research and experience-based information on issues ranging from drug doses for chemical immobilization, blood chemistry values, and raising an orphaned calf. In addition, it contains hundreds of high quality colour illustrations that contribute to its value as a diagnostic resource for recognizing various parasites, pathogens and signs of disease, both in live and dead animals. Each chapter is followed by a comprehensive list of references and a list of contact information for all the contributors, identifying world experts in the different areas of health for this circumpolar and fascinating species. This book is compulsory reading and an indispensable resource for anyone dealing with health in reindeer and caribou, including veterinarians, wildlife biologists and managers, reindeer herders/game ranchers, zoological husbandry personnel, and students with wildlife health.

Ecology and Management of Terrestrial Vertebrate Invasive Species in the United States (Paperback): William C. Pitt, James... Ecology and Management of Terrestrial Vertebrate Invasive Species in the United States (Paperback)
William C. Pitt, James Beasley, Gary W Witmer
R1,408 Discovery Miles 14 080 Ships in 12 - 17 working days

Vertebrate invasive species are important ecologically, socially, and scientifically throughout much of the globe. However, the interdiction and options for management of invasive species are driven by localized regulation at the country or even state level and thus the management of species must be framed within that context. This book is focused around the management of invasive vertebrate species in the United States, although readers will find much of the material broadly applicable to invasive species in other regions. Vertebrate invasive species cause damage to agriculture, property, natural resources, and threaten human health and safety. However, most of these species occur in the United States resulting from human-mediated activities, often being released intentionally. For the first time, the wealth of scientific information about vertebrate invasive species in the United States is summarized and synthesized in a single volume to be easily accessible to ecologists and natural resource managers. With a focus on prominent terrestrial invasive species that have a history of policy and management and highlighting contemporary issues and management, this book consists of 18 chapters written by experts from across the United States. The first section of the book focuses on overarching policy and management topics associated with vertebrate invasive species; including biosecurity threats and risk assessment, policy and regulation, and the economics of their management. The second section provides in-depth reviews of noteworthy invasive mammals, birds, amphibians, and reptiles. After finishing this book, the reader should understand the complexity of managing invasive species, the unique challenges that each new species may present, and the steps forward that may decrease the impact of these species on the environment, human health, and the economy.

Harvest of Fish and Wildlife - New Paradigms for Sustainable Management (Hardcover): Kevin L. Pope, Larkin A. Powell Harvest of Fish and Wildlife - New Paradigms for Sustainable Management (Hardcover)
Kevin L. Pope, Larkin A. Powell
R5,043 Discovery Miles 50 430 Ships in 12 - 17 working days

Harvest of Fish and Wildlife: New Paradigms for Sustainable Management unites experts in wildlife and fishery sciences for an interdisciplinary overview of harvest management. This book presents unique insights for embracing the complete social-ecological system to ensure a sustainable future. It educates users on evolutionary and population dynamics; social and political influences; hunter and angler behavior; decision processes; impacts of regulations; and stakeholder involvement. Features: Written by twenty-four teams of leading scientists and managers. Promotes transparent justification for fishing and hunting regulations. Provides examples for integrating decision making into management. Emphasizes creativity in management by integrating art and science. This book appeals to population biologists, evolutionary biologists and social scientists. It is a key resource for on-the-ground managers and research scientists developing harvesting applications. As the book's contributors explain: "Making decisions that are robust to uncertainty...is a paradigm shift with a lot of potential to improve outcomes for fish and wildlife populations." -Andrew Tyre and Brigitte Tenhumberg "Temporal shifts in system states...must somehow be anticipated and dealt with to derive harvest policies that remain optimal in the long term." -Michael Conroy "Proactive, effective management of sportspersons...will be essential in the new paradigm of harvest management." -Matthew Gruntorad and Christopher Chizinski

A Dog's World - Imagining the Lives of Dogs in a World without Humans (Hardcover): Jessica Pierce, Marc Bekoff A Dog's World - Imagining the Lives of Dogs in a World without Humans (Hardcover)
Jessica Pierce, Marc Bekoff
R471 Discovery Miles 4 710 Ships in 12 - 17 working days

From two of the world's leading authorities on dogs, an imaginative journey into a future of dogs without people What would happen to dogs if humans simply disappeared? Would dogs be able to survive on their own without us? A Dog's World imagines a posthuman future for dogs, revealing how dogs would survive-and possibly even thrive-and explaining how this new and revolutionary perspective can guide how we interact with dogs now. Drawing on biology, ecology, and the latest findings on the lives and behavior of dogs and their wild relatives, Jessica Pierce and Marc Bekoff-two of today's most innovative thinkers about dogs-explore who dogs might become without direct human intervention into breeding, arranged playdates at the dog park, regular feedings, and veterinary care. Pierce and Bekoff show how dogs are quick learners who are highly adaptable and opportunistic, and they offer compelling evidence that dogs already do survive on their own-and could do so in a world without us. Challenging the notion that dogs would be helpless without their human counterparts, A Dog's World enables us to understand these independent and remarkably intelligent animals on their own terms.

Genetic Sex Differentiation in Fish (Hardcover): T. J Pandian Genetic Sex Differentiation in Fish (Hardcover)
T. J Pandian
R3,040 Discovery Miles 30 400 Ships in 12 - 17 working days

A comprehensive elucidation of sex differentiation gonochoric and hermaphroditic fishes, this book examines sex chromosomes and sex determining genes, through sex differentiation genes and steroid receptor genes and to stem cells and germ cells. It emphasizes the need to search for more than one sex determining gene residing on different chromosomes, traces the origin of hermaphrodites from secondary gonochores, and explains the conservation of homologous sex differentiation and steroid receptor genes among gonochores and hermaphrodites. The author highlihgts that the changes in the phenotypic morphotypes among gonochores is intrasexual but intersexual among hermaphrodites and identifies the optimal broodstock size, the appropriate candidate species for bait and food fishes and recognizes that the fishes do undergo menopause and reproductive senescence, which has an implication on the production of stem cells. He shows that the analysis of steriles and mutants has demonstrated the value of fishes as a system for genetic dissection of human development and diseases.

The Cochlea (Hardcover, 1996 ed.): Peter Dallos, Richard R Fay The Cochlea (Hardcover, 1996 ed.)
Peter Dallos, Richard R Fay
R5,759 Discovery Miles 57 590 Ships in 10 - 15 working days

Knowledge about the structure and function of the inner ear is vital to an understanding of vertebrate hearing. This volume presents a detailed overview of the mammalian cochlea from its anatomy and physiology to its biophysics and biochemistry. The nine review chapters, written by internationally distinguished auditory researchers, provide a detailed and unified introduction to sound processing in the cochlea and the steps by which the ensuing signals are prepared for the central nervous system.

RSPB How to Photograph Garden Birds (Paperback): Mark Carwardine RSPB How to Photograph Garden Birds (Paperback)
Mark Carwardine
R474 Discovery Miles 4 740 Ships in 12 - 17 working days

This accessible, practical guide includes everything you need to know to capture fantastic photographs of birds on your doorstep. In RSPB How to Photograph Garden Birds, celebrated photographer and wildlife writer Mark Carwardine shares his expert advice and insider tips and tricks for capturing the perfect photo. Whether you have a professional camera and a garden filled with birds, or a smartphone and access to a bird table, his guidance will improve your photography in leaps and bounds. Packed with beautiful photographs, this book is a step-by-step masterclass on garden bird photography - from attracting different species to using artificial rain and capturing spectacular images of birds in flight. Once you've mastered the basics, you can make garden bird photography as simple or as challenging as you like. A robin perched on a garden spade? Easy. A blackbird feeding among fallen leaves? No problem. A blue tit in flight? Might take some planning but still very achievable. And there's more. Garden bird photography isn't only rewarding in its own right - it's also a sensational way to hone wildlife photography and field skills that you can then adapt to suit any subject anywhere in the world.

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