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

Ecology and Conservation of the Diamond-backed Terrapin (Hardcover): Willem M. Roosenburg, Victor S. Kennedy Ecology and Conservation of the Diamond-backed Terrapin (Hardcover)
Willem M. Roosenburg, Victor S. Kennedy
R1,336 R1,121 Discovery Miles 11 210 Save R215 (16%) Shipped within 7 - 12 working days

The diamond-backed terrapin is not only a uniquely evolved and beautiful turtle, it also has a long history as a vital American food source. Once so numerous that people reportedly grew tired of eating them, diamond-backed terrapins are greatly reduced in numbers today and have become an icon of salt marsh conservation. Considerably diminished in some areas and struggling to survive, this distinctive brackish water turtle is the focus of intense conservation efforts. In Ecology and Conservation of the Diamond-backed Terrapin, leading terrapin researcher Willem M. Roosenburg and experienced science editor Victor S. Kennedy have brought together a group of expert scientists to summarize our current understanding of terrapin biology, physiology, behavior, and conservation efforts. Over the course of 19 comprehensive chapters, contributors * review the latest information on this charismatic species * provide a detailed summary of the terrapin's natural history * explain the threats to terrapin population stability throughout their range* examine ongoing conservation efforts to ensure the reptile's survival* present convincing arguments for the value of the diamond-backed terrapin as an estuarine indicator organism* use the terrapin as a model for studying the consequences of exploitation and environmental degradation on long-lived species This exceptional book provides pivotal information for estuarine and turtle biologists, terrapin enthusiasts, natural historians, educators, conservationists, resource managers, and students. Ecology and Conservation of the Diamond-backed Terrapin is the definitive volume on this important American reptile. Contributors: Benjamin K. Atkinson, Harold W. Avery, Patrick J. Baker, Ralph E.J. Boerner, Russell L. Burke, Joseph A. Butler, Randolph M. Chambers, Paul E. Converse, Brian A. Crawford, Rusty D. Day, Dana J. Ehret, J. Whitfield Gibbons, Kathryn M. Greene, Leigh Anne Harden, Andrew S. Harrison, Kristen M. Hart, George L. Heinrich, Dawn K. Holliday, Victor S. Kennedy, Shawn R. Kuchta, Lori A. Lester, Jeffrey E. Lovich, John C. Maerz, David Owens, Allen R. Place, Taylor Roberge, Willem M. Roosenburg, Richard A. Seigel, Amanda Southwood Williard, Edward A. Standora, Anton D. Tucker, Diane C. Tulipani, Timothy J. Walsh, Thane Wibbels, Will Williams, Roger C. Wood

The Rat Brain in Stereotaxic Coordinates: Compact (Spiral bound, 7th edition): The Rat Brain in Stereotaxic Coordinates: Compact (Spiral bound, 7th edition)
R2,215 R1,678 Discovery Miles 16 780 Save R537 (24%) Shipped within 7 - 12 working days

The Rat Brain in Stereotaxic Coordinates Compact, Seventh Edition is a smaller sized (8.5 x 11inch), abridged version of the most referenced work in neuroscience (over 35,000 citations). The compact edition provides the coronal plates and diagrams of the current seventh edition in a smaller, more convenient spiral format and at a student friendly price. This book includes an introduction on current concepts in neuroanatomy, such as neuromeres and brain development. Students and seasoned researchers will find the first major unified nomenclature ontology tree based on development that features coronal photographic plates and juxtaposed diagrams.

A Taste for the Beautiful - The Evolution of Attraction (Paperback): Michael Ryan A Taste for the Beautiful - The Evolution of Attraction (Paperback)
Michael Ryan
R314 R240 Discovery Miles 2 400 Save R74 (24%) Shipped within 7 - 11 working days

From one of the world (TM)s leading authorities on animal behavior, the astonishing story of how the brain drives the evolution of beauty in animals and humans In A Taste for the Beautiful, Michael Ryan, one of the world (TM)s leading authorities on animal behavior, tells the remarkable story of how he and other scientists have taken up where Darwin left off, transforming our understanding of sexual selection and shedding new light on animal and human behavior. Drawing on cutting-edge science, Ryan explores key questions: Why do animals perceive certain traits as beautiful and others not? Do animals have an inherent sexual aesthetic and, if so, where is it rooted? Ryan argues that the answers lie in the brain "particularly of females, who act as biological puppeteers, spurring the development of beautiful traits in males. Vividly written and filled with fascinating stories, A Taste for the Beautiful will change how you think about beauty and attraction in the animal world and beyond.

The Empire of the Eagle - An Illustrated Natural History (Hardcover): Mike Unwin, David Tipling The Empire of the Eagle - An Illustrated Natural History (Hardcover)
Mike Unwin, David Tipling
R797 R595 Discovery Miles 5 950 Save R202 (25%) Shipped within 7 - 11 working days

Eagles hold a unique allure among birds for their combination of power, grace, and predatory prowess. Captivating the human imagination, these raptors have symbolized pride, freedom, and independence of spirit since humankind's earliest times. This book, unlike any previous volume, encompasses each of the world's sixty-eight currently recognized eagle species, from the huge Steller's Sea Eagle that soars above Japan's winter ice floes to the diminutive Little Eagle that hunts over the Australian outback. Mike Unwin's vivid and authoritative descriptions combined with stunning photographs taken or curated by David Tipling deliver a fascinating and awe-inspiring volume. Featuring chapters organized by habitat, the book investigates the lifestyle and unique adaptations of each eagle species, as well as the significance of eagles in world cultures and the threats they face from humans. A gorgeous appreciation of eagles, this book will dazzle both eye and imagination.

Hypsodonty in Mammals - Evolution, Geomorphology, and the Role of Earth Surface Processes (Hardcover): Richard H. Madden Hypsodonty in Mammals - Evolution, Geomorphology, and the Role of Earth Surface Processes (Hardcover)
Richard H. Madden
R2,030 R1,874 Discovery Miles 18 740 Save R156 (8%) Shipped within 7 - 12 working days

The evolution of high-crowned teeth, hypsodonty, is a defining characteristic of many terrestrial herbivores. To date, the most prominent focus in the study of the teeth of grazing herbivores has been co-evolution with grasses and grasslands. This book develops the idea further and looks at the myriad ways that soil can enter the diet. Madden then expands this analysis to examine the earth surface processes that mobilize sediment in the environment. The text delivers a global perspective on tooth wear and soil erosion, with examples from the islands of New Zealand to the South American Andes, highlighting how similar geological processes worldwide result in convergent evolution. The final chapter includes a review of elodonty in the fossil record and its environmental consequences. Offering new insights into geomorphology and adaptive and evolutionary morphology, this text will be of value to any researcher interested in the evolution of tooth size and shape.

Birds of Bhutan and the Eastern Himalayas (Paperback): Carol Inskipp, Tim Inskipp Birds of Bhutan and the Eastern Himalayas (Paperback)
Carol Inskipp, Tim Inskipp 1
R701 R523 Discovery Miles 5 230 Save R178 (25%) Shipped within 7 - 12 working days

The nation of Bhutan and the Indian states of Sikkim and Arunachal Pradesh together form the eastern arm of the Himalayas. This book is the definitive field guide to the birds of this magical corner of Asia. Covers all 809 species that regularly occur in the region, including most vagrants. 152 superb colour plates, with text on facing pages for quick and easy reference. Concise text covering identification, voice, habits, habitats, distribution and status. Introduction includes information habitats, birding sites and conservation.

Common Birds of Greater Atlanta (Paperback): Jim Wilson, Anselm Atkins Common Birds of Greater Atlanta (Paperback)
Jim Wilson, Anselm Atkins
R347 R282 Discovery Miles 2 820 Save R65 (19%) Shipped within 7 - 11 working days

Designed for beginning birders and nature enthusiasts alike, this easy-to-use guide presents sixty-one of the most common species of birds in the greater Atlanta area.

The guide features large color photographs throughout for immediate identification and is conveniently organized by bird size, starting with very small birds, such as the ruby-throated hummingbird, and progressing to larger species, such as the great blue heron. Information for each bird species includes common and scientific names, distinguishing marks and characteristics, and descriptions of bird calls, typical habitats, and nesting and feeding behaviors. Accounts also show variations in plumage according to sex, age, and season. The perfect companion for every backyard birder, "Common Birds of Greater Atlanta" also serves as an excellent introduction to birding, bird identification, and conservation.

Vertebrate Palaeontology (Paperback, 4th Edition): Michael Benton Vertebrate Palaeontology (Paperback, 4th Edition)
Michael Benton
R1,079 R848 Discovery Miles 8 480 Save R231 (21%) Shipped within 7 - 13 working days

Vertebrate palaeontology is a lively field, with new discoveries reported every week and not only dinosaurs! This new edition reflects the international scope of vertebrate palaeontology, with a special focus on exciting new finds from China. A key aim is to explain the science. Gone are the days of guesswork. Young researchers use impressive new numerical and imaging methods to explore the tree of life, macroevolution, global change, and functional morphology. The fourth edition is completely revised. The cladistic framework is strengthened, and new functional and developmental spreads are added. Study aids include: key questions, research to be done, and recommendations of further reading and web sites. The book is designed for palaeontology courses in biology and geology departments. It is also aimed at enthusiasts who want to experience the flavour of how the research is done. The book is strongly phylogenetic, and this makes it a source of current data on vertebrate evolution.

African Raptors (Hardcover): Bill Clark, Rob Davies African Raptors (Hardcover)
Bill Clark, Rob Davies
R1,158 R846 Discovery Miles 8 460 Save R312 (27%) Shipped within 7 - 12 working days

The most comprehensive guide to African raptors ever published.

Africa has the most diverse range of raptors of any continent, with almost a third of the world's species occurring in the region. This comprehensive new book treats all of these species in impressive detail, with emphasis on their field identification.

A full range of plumages is illustrated for each species, with artwork by raptor specialist Rob Davies. The authoritative text treats the identification of both perched and in-flight birds, and covers all major races, ages, plumages and morphs. These texts are accompanied by up-to-date distribution maps and a range of fabulous colour photographs from some of the world's leading bird photographers, again covering as broad a range of ages and subspecies as possible.

This new Helm Identification Guide will be an essential reference for all birders and ornithologists with an interest in raptors.

Amphibians and Reptiles of Costa Rica/Anfibios y reptiles de Costa Rica - A Pocket Guide in English and Spanish/Guia de... Amphibians and Reptiles of Costa Rica/Anfibios y reptiles de Costa Rica - A Pocket Guide in English and Spanish/Guia de bolsillo en ingles y espanol (English, Spanish, Paperback, Bilingual edition)
Federico Muyoz Chacyn, Richard Dennis Johnston
R388 R339 Discovery Miles 3 390 Save R49 (13%) Shipped within 7 - 12 working days

Costa Rica is a remarkable place for amphibians and reptiles. Known for its biological diversity, conservation priorities, and extensive protected lands, this small country contains 418 herpetological species including the dangerous fer-de-lance and black-headed bushmaster, the biologically complex poison dart frog, the beloved sea turtles, as well as numerous dink, foam, glass, and rain frogs. Additional species are thought to be nearing extinction while others have only been introduced recently.

The bilingual English/Spanish edition of Amphibians and Reptiles of Costa Rica is the perfect introductory guide to this diverse herpetofauna in a format that makes it easy to carry into the field. The focus is on identification with a complete species list for the country including scientific, English Common, and Spanish Common names, as well as the older names for the many species that have been recently reclassified. Key ID marks are noted as well as adult sizes. Range maps identify the region(s) where species are known to be present. Color photographs and drawings are provided for over 80 percent of the species, representing those that are most likely to be encountered. All text is in English and Spanish. Designed with ease of use in mind, this guide will be a great aid to the observer in identifying the specimen at hand.

A Guide to the Birds of Trinidad and Tobago (Paperback, 3rd edition): Richard Ffrench A Guide to the Birds of Trinidad and Tobago (Paperback, 3rd edition)
Richard Ffrench; Illustrated by John P. O'Neill, John C. Anderton, Dale Dyer, John Schmitt; Foreword by …
R732 R530 Discovery Miles 5 300 Save R202 (28%) Shipped within 7 - 11 working days

From reviews of the previous edition

"The island nation of Trinidad and Tobago has long served as a window on South American birdlife. Birders have been visiting the two islands in large numbers since the 1960s, when Asa Wright converted an unproductive plantation into one of the first neotropical 'ecotourist traps.' Anyone traveling to Trinidad and Tobago shouldn't leave home without this work." Journal of Field Ornithology

"This book will be wanted by any birder visiting Trinidad and Tobago, as well as by many ornithologists as a general reference." Wilson Bulletin

Members of nearly all the families of South American birds can be found on the two beautiful West Indian islands of Trinidad and Tobago, where the pleasant climate, varied habitat, and avian diversity create a "birder's paradise." This easy-to-use book is the third edition of a comprehensive yet compact field guide to all 477 species of the islands' birds, including 35 new species accounts added to the country's bird list since the last edition. Richard ffrench s work has been a "bible" to birders since the appearance of the first edition in 1973. This new edition incorporates five decades of his notes and records of the island s birds to present in a handy and readable form detailed and comprehensive information about the birds of Trinidad and Tobago.

Showcasing 40 all-new color plates by the very best bird artists working under the direction of John P. O Neill, the third edition now includes illustrations of not only the islands endemic and resident species, but also the many migratory species that visit the islands from both the north and the south. The taxonomic arrangement and treatment of families and species has also been brought in line with the most recent determinations of the A.O.U. Committee on Nomenclature for a thoroughly up-to-date presentation. In his introduction, Richard ffrench offers a full treatment of the history of ornithology in Trinidad and Tobago and sets the scene by describing the islands physiography, climate, and vegetation. Individual species accounts, arranged by family, make up the core of this identification guide. The accounts cover habitat and status, range and subspecies, field description and basic measurements, voice, food, nesting, and behavior. Richard ffrench s summary of the distribution of species and their breeding and migration, as well as local conservation and protection measures, makes this volume much more than a typical field-guide treatment, and invites visitors to this premier ecotourism destination."

What a Fish Knows - The Inner Lives of Our Underwater Cousins (Paperback): Jonathan Balcombe What a Fish Knows - The Inner Lives of Our Underwater Cousins (Paperback)
Jonathan Balcombe 1
R236 R193 Discovery Miles 1 930 Save R43 (18%) Shipped within 7 - 12 working days

What’s the truth behind the old adage that goldfish have a three-second memory? Do fishes think? Can they recognize the humans who peer back at them from above the surface of the water? Myth-busting biologist and animal behaviour expert Jonathan Balcombe takes us under the sea, through streams and estuaries to the other side of the aquarium glass to answer these questions and more. He upends our assumptions, revealing that fish are far from the unfeeling, dead-eyed feeding machines so many of us assume them to be. They are, in fact, sentient, aware, social and even Machiavellian – in other words, rather like us.

What a Fish Knows draws on the latest science to present a fresh look at these remarkable creatures in all their breathtaking diversity and beauty. Teeming with insights and exciting discoveries, it offers a thoughtful appraisal of our relationships with fish and inspires us to take a more enlightened view of the planet’s increasingly imperilled marine life. What a Fish Knows will forever change how we see our aquatic cousins – the pet goldfish included.

Primates in Flooded Habitats - Ecology and Conservation (Hardcover): Katarzyna Nowak, Adrian A. Barnett, Ikki Matsuda Primates in Flooded Habitats - Ecology and Conservation (Hardcover)
Katarzyna Nowak, Adrian A. Barnett, Ikki Matsuda
R2,496 R2,332 Discovery Miles 23 320 Save R164 (7%) Shipped within 7 - 12 working days

Nearly half the world's primate species use flooded habitats at one time or another, from swamp-going Congo gorillas and mangrove-eating proboscis monkeys, to uacaris in Amazonian riverside forests. This first-ever volume on the subject brings together experts from around the world in a ground breaking volume spanning fossil history, current biology and future research and conservation priorities. Flooded habitats are a vital part of tropical biology, both for the diversity of the species they house, and the complexity of their ecological interactions, but are often completely overlooked. This book will set the stage for a new wave of research on primates in these extraordinarily productive and highly threatened areas, and is ideal for researchers and graduate students in primatology, zoology, ecology, and conservation.

The Yellowstone Wolf - A Guide and Sourcebook (Paperback): Paul. Schullery The Yellowstone Wolf - A Guide and Sourcebook (Paperback)
Paul. Schullery
R373 R304 Discovery Miles 3 040 Save R69 (18%) Shipped within 7 - 11 working days

"All royalties from sales of this book go to Yellowstone's wolf recovery project"

Few animals inspire such a mixture of fear, curiosity, and wonder as the wolf. Highly regarded but often misunderstood, the wolf has as many friends as enemies, and its reintroduction into Yellowstone National Park has sparked both fascination and controversy.

Early in Yellowstone's history, wolves were thought supernaturally evil, and scores were destroyed. Northern Rocky Mountain wolves were native to Yellowstone when the park was established in 1872, but "predator control" led to determined eradication, and by the 1940s they were gone. Amid much fanfare, however, wolves were reintroduced to one of the nation's oldest national parks in the 1990s.

This comprehensive reference documents the prehistory, management, and nature of the Yellowstone wolf. Historian-naturalist Paul Schullery has assembled the voices of explorers, naturalists, park officials, tourists, lawmakers, and modern researchers to tell the story of what may be the most famous wolf population in the world. This unique book includes numerous scientific studies of interest to wolf enthusiasts and scholars of western wildlife issues, conservation, and national parks. In a new afterword, Schullery discusses recent developments in the recovery project.

Disappearing Giants - The Fight Against Extinction (Hardcover): Scott D Kraus, Kenneth Mallory Disappearing Giants - The Fight Against Extinction (Hardcover)
Scott D Kraus, Kenneth Mallory
R166 R136 Discovery Miles 1 360 Save R30 (18%) Shipped within 7 - 11 working days

This volume describes and illustrates an ongoing story of science and rediscovery, of survival and protection, and of research, without which we cannot hope to protect the right whale's habitat in the Atlantic. It also describes in great detail the history and current status of the species, from the reason for its name, to the way each individual can be recognised, the species' feeding and breeding habits, migration, and life in the wilderness of the Atlantic Ocean. The north atlantic right whale is the most endangered large whale in the oceans today. Fewer than 350 are left in their breeding and feeding grounds, which extend from Nova Scotia to the Gulf of Mexico. Survivors of hundreds of years of commercial exploitation, the Right Whales we see in the ocean today are barometers for the plight of whales in the 21st century. For over 900 years, beginning about AD 1000, whalers from Europe and the Americas hunted north atlantic right whales almost out of existence. By 1935, when they were at last given international protection as an endangered species, some scientists suspected that there were fewer than 100 right whales left in the North Atlantic Ocean. Most thought the right whale was doomed to extinction.

Cambridge Studies in Morphology and Molecules: New Paradigms in Evolutionary Bio, Series Number 6 - Shrews, Chromosomes and... Cambridge Studies in Morphology and Molecules: New Paradigms in Evolutionary Bio, Series Number 6 - Shrews, Chromosomes and Speciation (Hardcover)
Jeremy B. Searle, P. David Polly, Jan Zima
R1,597 R1,482 Discovery Miles 14 820 Save R115 (7%) Shipped within 7 - 12 working days

The chromosome complement (karyotype) often differs between related mammalian species (including humans vs chimpanzees), such that evolutionary biologists muse whether chromosomal difference is a cause or a consequence of speciation. The common shrew is an excellent model to investigate this problem because of its many geographical races (potential species) differing chromosomally, and its several sibling species (recently speciated forms) that are also chromosomally different. This system is an exceptional opportunity to investigate the role of chromosomes in speciation and this volume reflects detailed research following these approaches. Highlights include the demonstration that chromosomal re-arrangements can be associated with complete loss of gene flow and thus speciation and that selection within species hybrid zones may lead to de-speciation rather than speciation. This book represents an extraordinarily detailed consideration of the role of chromosomes in speciation in one astonishing species, providing insights to those interested in mammalian diversity, chromosomal evolution and speciation.

Wild Moms - Motherhood in the Animal Kingdom (Hardcover): Carin Bondar Wild Moms - Motherhood in the Animal Kingdom (Hardcover)
Carin Bondar
R506 R373 Discovery Miles 3 730 Save R133 (26%) Shipped within 7 - 11 working days
Photographic Guide to the Birds of Japan and North-East Asia (Paperback): Tadao Shimba Photographic Guide to the Birds of Japan and North-East Asia (Paperback)
Tadao Shimba 1
R823 R612 Discovery Miles 6 120 Save R211 (26%) Shipped within 7 - 12 working days

Eastern Asia is blessed with a rich and spectacular avifauna, and all 520 regularly occurring species are featured in this spectacular and lavish new photographic guide to the region, covering Japan, northern China, North and South Korea and the Russian Far East. The concise text focuses on key identification criteria, and is accompanied by a distribution map for every species. The accompanying photographs, contributed by Japan's top bird photographers, form a stunning series that will allow both field identification and rich enjoyment at home afterwards. This beautiful book is a must-have for anyone interested in the birds of Asia.

The Walking Whales - From Land to Water in Eight Million Years (Hardcover): J. G. M. "Hans" Thewissen The Walking Whales - From Land to Water in Eight Million Years (Hardcover)
J. G. M. "Hans" Thewissen
R628 R487 Discovery Miles 4 870 Save R141 (22%) Shipped within 7 - 12 working days

Hans Thewissen, a leading researcher in the field of whale paleontology and anatomy, gives a sweeping first-person account of the discoveries that brought to light the early fossil record of whales. As evidenced in the record, whales evolved from herbivorous forest-dwelling ancestors that resembled tiny deer to carnivorous monsters stalking lakes and rivers and to serpentlike denizens of the coast. Thewissen reports on his discoveries in the wilds of India and Pakistan, weaving a narrative that reveals the day-to-day adventures of fossil collection, enriching it with local flavors from South Asian culture and society. The reader senses the excitement of the digs as well as the rigors faced by scientific researchers, for whom each new insight gives rise to even more questions, and for whom at times the logistics of just staying alive may trump all science. In his search for an understanding of how modern whales live their lives, Thewissen also journeys to Japan and Alaska to study whales and wild dolphins. He finds answers to his questions about fossils by studying the anatomy of otters and porpoises and examining whale embryos under the microscope. In the book's final chapter, Thewissen argues for approaching whale evolution with the most powerful tools we have and for combining all the fields of science in pursuit of knowledge.

How to Tame a Fox (and Build a Dog) - Visionary Scientists and a Siberian Tale of Jump-Started Evolution (Paperback): Lee Alan... How to Tame a Fox (and Build a Dog) - Visionary Scientists and a Siberian Tale of Jump-Started Evolution (Paperback)
Lee Alan Dugatkin, Lyudmila Trut
R332 R253 Discovery Miles 2 530 Save R79 (24%) Shipped within 7 - 11 working days

Tucked away in Siberia, there are furry, four-legged creatures with wagging tails and floppy ears that are as docile and friendly as any lapdog. But, despite appearances, these are not dogs-they are foxes. They are the result of the most astonishing experiment in breeding ever undertaken-imagine speeding up thousands of years of evolution into a few decades. In 1959, biologists Dmitri Belyaev and Lyudmila Trut set out to do just that, by starting with a few dozen silver foxes from fox farms in the USSR and attempting to recreate the evolution of wolves into dogs in real time in order to witness the process of domestication. This is the extraordinary, untold story of this remarkable undertaking. Most accounts of the natural evolution of wolves place it over a span of about 15,000 years, but within a decade, Belyaev and Trut's fox breeding experiments had resulted in puppy-like foxes with floppy ears, piebald spots, and curly tails. Along with these physical changes came genetic and behavioral changes, as well. The foxes were bred using selection criteria for tameness, and with each generation, they became increasingly interested in human companionship. Trut has been there the whole time, and has been the lead scientist on this work since Belyaev's death in 1985, and with Lee Dugatkin, biologist and science writer, she tells the story of the adventure, science, politics, and love behind it all. In How to Tame a Fox, Dugatkin and Trut take us inside this path-breaking experiment in the midst of the brutal winters of Siberia to reveal how scientific history is made and continues to be made today. To date, fifty-six generations of foxes have been domesticated, and we continue to learn significant lessons from them about the genetic and behavioral evolution of domesticated animals. How to Tame a Fox offers an incredible tale of scientists at work, while also celebrating the deep attachments that have brought humans and animals together throughout time.

The Garter Snakes - Evolution and Ecology (Hardcover, New): Douglas A. Rossman, Etc, Neil B. Ford, Richard A Seigel The Garter Snakes - Evolution and Ecology (Hardcover, New)
Douglas A. Rossman, Etc, Neil B. Ford, Richard A Seigel
R1,421 Discovery Miles 14 210 Shipped within 7 - 11 working days

"The Garter Snakes: Evolution and Ecology" includes color plates of all species (many never previously figured in color); extensive discussion of ecology, behavior, and captive care; and a modern key to all species-as well as species-by-species summaries of the systematics and natural history of the thirty different garter snakes now recognized. Of particular interest are the descriptions of lesser-known species in Mexico.

Because interest in reptiles has grown dramatically in recent years, this comprehensive guide is designed to appeal to as wide an audience as possible-to both the professional herpetologist interested in the biology of Thamnophis and the hobbyist who wants to know more about these diverse and widespread snakes, both in the home aquarium and in the wild.

Conservation of Freshwater Fishes (Paperback): Gerard P. Closs, Martin Krkosek, Julian D. Olden Conservation of Freshwater Fishes (Paperback)
Gerard P. Closs, Martin Krkosek, Julian D. Olden
R1,039 R987 Discovery Miles 9 870 Save R52 (5%) Shipped within 7 - 12 working days

Freshwater fish are one of the most diverse groups of vertebrates, but are also amongst the most threatened. With contributions from leaders in the field, this is the first assessment of the global state of freshwater fish diversity, synthesising the opportunities, challenges and barriers facing the conservation of freshwater fish biodiversity. The book includes the first global assessment of the number, type and distribution of threatened freshwater fish species, discussing the features of freshwater fish biology and ecology that render so many species vulnerable to extinction. Introductory chapters on why freshwater fish are so sensitive to environmental change and disturbance lead into chapters providing detailed reviews of the key threatening processes and potential solutions. A concluding chapter summarises the key issues and looks to the future for opportunities and challenges for the conservation and management of freshwater fish.

The Birds of Ecuador - Field Guide (Paperback): Robert S. Ridgely, Paul J. Greenfield The Birds of Ecuador - Field Guide (Paperback)
Robert S. Ridgely, Paul J. Greenfield; Foreword by Frank Gill
R1,045 R758 Discovery Miles 7 580 Save R287 (27%) Shipped within 8 - 13 working days

The Birds of Ecuador comprehensively treats the nearly 1600 species of birds that can be found in mainland Ecuador. The authors describe Ecuador this way: "One of the wonders of the natural world. Nowhere else is such incredible avian diversity crammed into such a small country. . . . Birds are, happily, numerous in many parts of Ecuador: even the downtown parks of the big cities such as Quito and Guayaquil host their complement."

Volume II, the field guide volume of this two-volume set, contains 96 full-color plates and facing pages of descriptive text, a color map of Ecuador, along with two line drawings of bird anatomy, 115 silhouette outlines, and nearly 1600 distribution maps. All species are illustrated in full color, including migrants and vagrants and visually distinctive subspecies. The text focuses on the field identification aspects of each species, including their behavior, vocalizations, and nest appearance.

The two volumes of The Birds of Ecuador are available separately or may be purchased as a slipcased set.

Chameleons of Southern Africa (Paperback): Krystal Tolley, Marius Burger Chameleons of Southern Africa (Paperback)
Krystal Tolley, Marius Burger
R190 R150 Discovery Miles 1 500 Save R40 (21%) Shipped within 4 - 8 working days

Chameleons are fascinating creatures: they almost always evoke in people a strong response, be it delight, wonder or fear.

Chameleons of Southern Africa explores this interesting group of lizards and discusses their strange and unusual, sometimes unnerving, characteristics. It presents an overview of all types of chameleons (of which there are up to 160 species in total, worldwide), their history, geographic distribution (restricted mainly to Madagascar and Africa), reproduction, behaviour and their relationships to each other.

It also contains a clear identification guide to all southern African species - some 25 have been identified to date - together with distribution maps and colourful photographs of their many features and guises. For interested students, gardeners, naturalists and even just the curious, Chameleons of Southern Africa is an essential guide to these intriguing lizards.

Field Guide to the Birds of Thailand (Paperback): Craig Robson Field Guide to the Birds of Thailand (Paperback)
Craig Robson
R692 R515 Discovery Miles 5 150 Save R177 (26%) Shipped within 7 - 12 working days

Thailand is probably the most popular destination for tourists in Asia, and birders have long travelled there to observe its wealth of wildlife. This comprehensive guide to the birds of Thailand is an indispensable field reference for birdwatchers, residents and visitors to the country alike. It covers all 950 species that have been recorded in Thailand, with 166 magnificent colour plates covering most plumage variations. Each plate is accompanied by concise text for each species and distinctive subspecies, detailing identification, voice, habitat and behaviour. In addition, there is a distribution map for every species, based on the very latest information.

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