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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Vertebrates > Mammals > Marine & freshwater mammals

Introducing the Manatee (Hardcover): Warren Zeiller Introducing the Manatee (Hardcover)
Warren Zeiller
R736 R652 Discovery Miles 6 520 Save R84 (11%) Ships in 10 - 15 working days

This work is about the first manatee ever conceived and born in captivity. The pregnancy was long (about 13 months), the mother was huge (over 900 pounds), and baby Lorelei was regarded by Zeiller and his coworkers at the Miami Seaquarium as a truly blessed event. Even one addition to the dwindling number of this endangered species was reason to rejoice. Zeiller's knowledge of the history and plight of this docile sea mammal is based on his work at the Seaquarium, where he helped develop the only extant breeding herd of manatees (including Lorelei's parents, Romeo and Juliet), the only gene pool of the animal in captivity at that time. With more than 100 photographs that help to document his personal experiences, Zeiller describes ""mercy"" missions with the Mermaid Rescue Squad to liberate animals caught in drainage ditches or to care for animals injured by boat propellers. He relates his efforts and adventures with Captain Jacques Cousteau to return ""Sewer Sam"" to the freedom of Crystal River. In uncomplicated language he presents scientific information on the habitat, distribution, physiology, and feeding and breeding habits of the manatee and its relatives. Manatees are nearing extinction not because of public insensitivity, he believes, but because of a lack of knowledge. His intention throughout the book is to increase public awareness of the crises. ""Destroying or saving 60,000,000 years of evolution is in our hands"", he writes. And, from the Epilogue: ""We have named Lorelei's son (Juliet's grandson) Hugh.

Marine Mammal Survey and Assessment Methods (Hardcover): J.L. Laake, D.G. Robertson, Steven C. Amstrup, B.F.J. Manly Marine Mammal Survey and Assessment Methods (Hardcover)
J.L. Laake, D.G. Robertson, Steven C. Amstrup, B.F.J. Manly
R5,298 Discovery Miles 52 980 Ships in 12 - 17 working days

This volume comprises the proceedings of a symposium on marine mammal survey assessment methods, which took place in Seattle, Washington, USA.

RSPB Spotlight Seals (Paperback): Frances Dipper RSPB Spotlight Seals (Paperback)
Frances Dipper
R317 Discovery Miles 3 170 Ships in 12 - 17 working days

Seals are the sleekest and most agile of all marine mammals, and they are superbly adapted to the watery world in which they spend most of their time. With their whiskery dog-like faces, curious nature and vulnerable pups, they are enduringly appealing animals. Although air-breathing, seals are superbly tuned to hunt, sleep, mate and keep warm while out at sea, but they remain inextricably linked to land. In Spotlight Seals, Frances Dipper explores the intricate lives of the UK's native Grey and Common Seals and their amazing physical and behavioural adaptations to a life split between land and sea. She reveals the complex physiology that allows seals to dive deep and for long periods without coming to any harm. Once exploited for their meat and skins, seals now have protection around the British Isles. Their numbers are increasing, but they still face the danger of plastic litter in their environment. Dipper also explores age-old legends, interactions between humans and seals, and the best places to watch them in the UK. The Spotlight series introduces readers to the lives and behaviour of our favourite animals with eye-catching colour photographs and informative expert text.

Floating Gold - A Natural (and Unnatural) History of Ambergris (Paperback): Christopher Kemp Floating Gold - A Natural (and Unnatural) History of Ambergris (Paperback)
Christopher Kemp
R457 Discovery Miles 4 570 Ships in 12 - 17 working days

A fascinating natural history of an incredibly curious substance. "Preternaturally hardened whale dung" is not the first image that comes to mind when we think of perfume, otherwise a symbol of glamour and allure. But the key ingredient that makes the sophisticated scent linger on the skin is precisely this bizarre digestive by-product-ambergris. Despite being one of the world's most expensive substances (its value is nearly that of gold and has at times in history been triple it), ambergris is also one of the world's least known. But with this unusual and highly alluring book, Christopher Kemp promises to change that by uncovering the unique history of ambergris. A rare secretion produced only by sperm whales, which have a fondness for squid but an inability to digest their beaks, ambergris is expelled at sea and floats on ocean currents for years, slowly transforming, before it sometimes washes ashore looking like a nondescript waxy pebble. It can appear almost anywhere but is found so rarely, it might as well appear nowhere. Kemp's journey begins with an encounter on a New Zealand beach with a giant lump of faux ambergris-determined after much excitement to nothing more exotic than lard-that inspires a comprehensive quest to seek out ambergris and its story. He takes us from the wild, rocky New Zealand coastline to Stewart Island, a remote, windswept island in the southern seas, to Boston and Cape Cod, and back again. Along the way, he tracks down the secretive collectors and traders who populate the clandestine modern-day ambergris trade. Floating Gold is an entertaining and lively history that covers not only these precious gray lumps and those who covet them, but presents a highly informative account of the natural history of whales, squid, ocean ecology, and even a history of the perfume industry. Kemp's obsessive curiosity is infectious, and eager readers will feel as though they have stumbled upon a precious bounty of this intriguing substance.

Ripples on the River - Celebrating the Return of the Otter (Hardcover): Laurie Campbell, Anna Levin Ripples on the River - Celebrating the Return of the Otter (Hardcover)
Laurie Campbell, Anna Levin
R524 Discovery Miles 5 240 Ships in 12 - 17 working days

A photographic celebration of the return of otters to our rivers and freshwater wetlands after a drastic decline. Ripples of excitement are spreading through Europe's rivers and wetlands. A generation ago, otter watching was a wildlife highlight restricted to remote coastal areas - otter populations had been decimated over the previous century by pesticide poisoning and habitat disturbance. Now we are seeing the positive effect of determined conservation efforts over recent decades. As our waterways improve, otters are returning and spreading throughout their former habitats. One of the UK's leading natural history photographers, Laurie Campbell got to know otters while working in Scotland's Highlands and Islands, but he had never seen these elusive predators on his home beat. Then, in the early 1990s, he was delighted to find otters back on the Tweed and its tributaries, a river system he has lived close to for most of his life. The discovery launched him on a quest to create a photographic account of their lives on his home river. More than two decades later, otter numbers continue to increase, and new generations of otters have become more confident around people, sometimes appearing in broad daylight and in town centres. Laurie continues his long-standing study, still photographing the otters through the changing seasons - always with an eye on the bigger picture of the river itself and the plants and animals that share the otters' habitat. Wildlife journalist and writer Anna Levin accompanies Laurie to the riverbank and learns of his working philosophy and fieldcraft. Together they weave a wealth of information into the stories that the pictures tell. While extracts from Anna's notebooks offer a vivid glimpse of the photographer at work and the otters that enchant them both.

Ecology and Conservation of Pinnipeds in Latin America (Paperback, 1st ed. 2021): Gisela Heckel, Yolanda Schramm Ecology and Conservation of Pinnipeds in Latin America (Paperback, 1st ed. 2021)
Gisela Heckel, Yolanda Schramm
R4,214 Discovery Miles 42 140 Ships in 10 - 15 working days

Pinnipeds are marine mammals that include eared seals, true seals, and walruses. This book presents detailed reviews on the ecology and conservation of 10 pinniped species along the coasts and islands in Latin America, from Mexico to Chile and Argentina. Topics covered include their population dynamics, trophic ecology, reproduction, and behavior. In addition, the book addresses major conservation issues regarding climate change, interaction with fisheries, ecotourism, and other human activities.

Whales, Dolphins and Seals - A field guide to the marine mammals of the world (Paperback): Brett Jarrett, Hadoram Shirihai Whales, Dolphins and Seals - A field guide to the marine mammals of the world (Paperback)
Brett Jarrett, Hadoram Shirihai; Illustrated by Brett Jarrett
R546 Discovery Miles 5 460 Ships in 12 - 17 working days

This new field guide is a complete and convenient reference to every species of cetacean, pinniped and sirenian in the world, along with the Marine and Sea Otters and the Polar Bear. Every species is illustrated with magnificent colour paintings and a stunning collection of photographs, chosen to illustrate the key field marks which can be used to separate each species in the field. The author's unique depth of experience and knowledge, coupled with the artist's unrivalled skill, have come together to produce a neat, practical field guide that will enable any observer to quickly identify any mammals they may encounter at sea.

Encyclopedia of Marine Mammals (Hardcover, 3rd edition): Bernd Wursig, J. G. M. "Hans" Thewissen, Kit M. Kovacs Encyclopedia of Marine Mammals (Hardcover, 3rd edition)
Bernd Wursig, J. G. M. "Hans" Thewissen, Kit M. Kovacs
R5,323 R4,147 Discovery Miles 41 470 Save R1,176 (22%) Ships in 12 - 17 working days

The Encyclopedia of Marine Mammals, Third Edition covers the ecology, behavior, conservation, evolution, form and function of whales, dolphins, seals, sea lions, manatees, dugongs, otters and polar bears. This edition provides new content on anthropogenic concerns, latest information on emerging threats such as ocean noise, and impacts of climate change. With authors and editors who are world experts, this new edition is a critical resource for all who are interested in marine mammals, especially upper level undergraduate and graduate students, researchers, and managers, and is a top reference for those in related fields, from oceanographers to environmental scientists.

Marine Mammal Ecotoxicology - Impacts of Multiple Stressors on Population Health (Paperback): Maria Cristina Fossi, Cristina... Marine Mammal Ecotoxicology - Impacts of Multiple Stressors on Population Health (Paperback)
Maria Cristina Fossi, Cristina Panti
R2,655 R2,419 Discovery Miles 24 190 Save R236 (9%) Ships in 12 - 17 working days

Marine Mammal Ecotoxicology: Impacts of Multiple Stressors on Population Health provides tactics on how to develop a comprehensive methodology for the study of existing threats to marine mammals. By presenting a conservation-biology approach and new and emerging technologies, this work helps provide crucial knowledge on the status of marine mammal populations that not only helps readers understand the ecosystem's health, but also instigate mitigation measures. This volume provides information that helps investigators unravel the relationships between exposure to environmental stressors (e.g., climate change, pollutants, marine litter, pathogens and biotoxins) and a range of endpoints in marine mammal species. The application of robust examination procedures and biochemical, immunological, and molecular techniques, combined with pathological examination and feeding ecology, has led to the development of health assessment methods at the individual and population levels in wild marine mammals.

Passive Acoustic Monitoring of Cetaceans (Paperback): Walter M. X. Zimmer Passive Acoustic Monitoring of Cetaceans (Paperback)
Walter M. X. Zimmer
R1,330 Discovery Miles 13 300 Ships in 12 - 17 working days

Passive acoustic monitoring is increasingly used by the scientific community to study, survey and census marine mammals, especially cetaceans, many of which are easier to hear than to see. PAM is also used to support efforts to mitigate potential negative effects of human activities such as ship traffic, military and civilian sonar and offshore exploration. Walter Zimmer provides an integrated approach to PAM, combining physical principles, discussion of technical tools and application-oriented concepts of operations. Additionally, relevant information and tools necessary to assess existing and future PAM systems are presented, with Matlab code used to generate figures and results so readers can reproduce data and modify code to analyse the impact of changes. This allows the principles to be studied whilst discovering potential difficulties and side effects. Aimed at graduate students and researchers, the book provides all information and tools necessary to gain a comprehensive understanding of this interdisciplinary subject.

Whale-watching - Sustainable Tourism and Ecological Management (Hardcover, New): James Higham, Lars Bejder, Rob Williams Whale-watching - Sustainable Tourism and Ecological Management (Hardcover, New)
James Higham, Lars Bejder, Rob Williams
R2,822 Discovery Miles 28 220 Ships in 12 - 17 working days

Within little more than a generation, whale-watching has been subject to global industrial development. It has been portrayed by destinations and business operators, and advocated by environmental groups, as a sustainable activity and an alternative to whaling. However, in recent years the sustainability of these activities has increasingly been questioned, as research shows that repeated disturbance by boat traffic can severely disrupt critical behaviours of cetaceans in the wild. Bringing together contributions by international experts, this volume addresses complex issues associated with commercial whale-watching, sustainable development and conservation of the global marine environment. It highlights widely expressed concerns for the failure of policy, planning and management and pinpoints both long-standing and emerging barriers to sustainable practice. Featuring numerous case studies, the book provides critical insights into the diverse socio-cultural, political, economic and ecological contexts of this global industry, highlighting the challenges and opportunities that arise along the pathways to sustainability.

CRC Handbook of Marine Mammal Medicine (Hardcover, 3rd edition): Leslie A. Dierauf, Karyl L. Whitman, Frances M. D. Gulland CRC Handbook of Marine Mammal Medicine (Hardcover, 3rd edition)
Leslie A. Dierauf, Karyl L. Whitman, Frances M. D. Gulland
R6,505 Discovery Miles 65 050 Ships in 12 - 17 working days

AAP Prose Award Finalist 2018/19 For three decades, this book has been acknowledged as the most respected scientific reference specifically devoted to marine mammal medicine and health. Written by approximately 100 contributors who are recognized globally as leaders in their respective fields, the CRC Handbook of Marine Mammal Medicine, Third Edition continues to serve as the essential guide for all practitioners involved with marine mammals including veterinarians, technicians, biological researchers, students, managers, keepers, curators, and trainers. The 45 chapters provide essential information for the practitioner on pathology, infectious diseases, medical treatment, anesthesia, surgery, husbandry, health assessment, species-specific medicine, medically pertinent anatomy and physiology, and global health concerns such as strandings, oil spills, and entanglements of marine mammals. Covers all aspects of marine mammal veterinary practice Written by internationally acknowledged experts Adds new chapters on Ophthalmology, Dentistry, Ethics, Oil Spill Response, Health Assessments, Whale Entanglement Response, Dive Response, and Biotoxins Richly illustrated in color throughout the new edition including updated anatomical drawings and extensive photographs of ocular lesions Provides guidance to websites that regularly present updated information and images pertinent to current marine mammal medicine such as imaging and stranding network contacts Discusses ethics and animal welfare. The book guides the reader through the veterinary care of cetaceans, pinnipeds, manatees, sea otters, and polar bears. In addition to summaries of current knowledge, chapters provide information on those digital resources and websites which present the latest information as it emerges in the field. The CRC Handbook of Marine Mammal Medicine, Third Edition gives a call to action for scientists to experiment with new endeavors to engage and inspire current and future generations to care for marine mammals and the marine environment, and work together to find solutions. As the most trusted reference for marine mammal conservation medicine and for marine mammal medical facilities around the world, this book needs to be in your library.

Ecology and Conservation of the Sirenia - Dugongs and Manatees (Paperback): Helene Marsh, Thomas J. O'Shea, John E.... Ecology and Conservation of the Sirenia - Dugongs and Manatees (Paperback)
Helene Marsh, Thomas J. O'Shea, John E. Reynolds III
R1,867 Discovery Miles 18 670 Ships in 12 - 17 working days

Dugongs and manatees, the only fully aquatic herbivorous mammals, live in the coastal waters, rivers and lakes of more than 80 subtropical and tropical countries. Symbols of fierce conservation battles, sirenian populations are threatened by multiple global problems. Providing comparative information on all four surviving species, this book synthesises the ecological and related knowledge pertinent to understanding the biology and conservation of the sirenia. It presents detailed scientific summaries, covering sirenian feeding biology; reproduction and population dynamics; behavioural ecology; habitat requirements and threats to their continued existence. Outlining the current conservation status of the sirenian taxa, this unique study will equip researchers and professionals with the scientific knowledge required to develop proactive, precautionary and achievable strategies to conserve dugongs and manatees. Supplementary material is available online at: www.cambridge.org/9780521888288.

Whales and Dolphins - Cognition, Culture, Conservation and Human Perceptions (Paperback): Philippa Brakes, Mark Peter Simmonds Whales and Dolphins - Cognition, Culture, Conservation and Human Perceptions (Paperback)
Philippa Brakes, Mark Peter Simmonds
R1,273 Discovery Miles 12 730 Ships in 12 - 17 working days

Whales and dolphins are icons for the conservation movement. They are the most conspicuous ambassadors for entire marine ecosystems and possibly even for the biosphere as a whole. Concurrent with our realisation of impending threats to their environment is a growing scientific understanding of the social and cognitive complexity of many of these species. This book brings together experts in the relevant diverse fields of cetacean research, to provide authoritative descriptions of our current knowledge of the complex behaviour and social organization of whales and dolphins. The authors consider this new information in the context of how different human cultures from around the world view cetaceans and their protection, including attitudes to whaling. They show how new information on issues such as cetacean intelligence, culture and the ability to suffer, warrants a significant shift in global perceptions of this group of animals and how these changes might be facilitated to improve conservation and welfare approaches.

Great White Sharks in United States Museums (Paperback): Alessandro De Maddalena, Walter Heim Great White Sharks in United States Museums (Paperback)
Alessandro De Maddalena, Walter Heim; Foreword by Sean R. Van Sommeran
R1,116 R845 Discovery Miles 8 450 Save R271 (24%) Ships in 12 - 17 working days

This complete guide to great white shark specimens preserved in the museums and aquariums of the United States catalogs 160 great white shark items in 26 institutions. The preserved material includes whole specimens as well as parts of specimens (jaws, teeth, vertebrae, etc.) Each entry details the methods of preserving or preparing the specimen (freezing, drying, taxidermying or skin-mounting, embalming, fixating followed by permanent storage in aqueous solutions of ethyl or isopropyl alcohols), and creating a model of the shark cast from a mold of the original specimen. The work also includes a general introduction describing the biology, ethology and ecology of the great white shark and more detailed accounts of the various preservation methods.

The Rise of Marine Mammals - 50 Million Years of Evolution (Hardcover): Annalisa Berta The Rise of Marine Mammals - 50 Million Years of Evolution (Hardcover)
Annalisa Berta; Illustrated by James L. Sumich
R1,673 Discovery Miles 16 730 Ships in 12 - 17 working days

Marine mammals have long captured the attention of humans. Ancient peoples etched seals and dolphins on the walls of Paleolithic caves; today, engineers develop microprocessors to track these denizens of the deep. This groundbreaking book from highly respected marine mammal paleontologist Annalisa Berta delves into the story of the extraordinary adaptations that gave the world these amazing animals. The Rise of Marine Mammals reveals remarkable fossil record discoveries that shed light on the origins, relationships, and diversification of marine mammals. Focusing on evolution and paleobiology, Berta provides an overview of marine mammal species diversity, enhanced with gorgeous life restorations by Carl Buell, Robert Boessenecker, William Stout, and Ray Troll and extensive line drawings by graphics editor James L. Sumich. The book also considers ongoing conservation challenges, demonstrating how the fossil record of adaptation in response to past environmental shifts may illuminate the way that marine mammals respond to global climate change. This invaluable biological framework is essential for helping us understand how best to protect and conserve today's polar bears, whales, dolphins, seals, and fellow warm-blooded ocean dwellers. The Rise of Marine Mammals also describes exciting breakthroughs that rely on new techniques of study, including 3-D imaging, and molecular, finite element, and morphometric analyses, which have enhanced scientists' understanding of everything from the anatomy of fetal whales to the genes behind limb loss in cetaceans. Mammalogists, paleontologists, and marine scientists will find Berta's insights absorbing, while developmental and molecular biologists, geneticists, and ecologists exploring integrative research approaches will benefit from her fresh perspective.

Europe's Sea Mammals Including the Azores, Madeira, the Canary Islands and Cape Verde - A field guide to the whales,... Europe's Sea Mammals Including the Azores, Madeira, the Canary Islands and Cape Verde - A field guide to the whales, dolphins, porpoises and seals (Paperback)
Robert Still, Hugh Harrop, Luis Dias, Tim Stenton
R655 R552 Discovery Miles 5 520 Save R103 (16%) Ships in 12 - 17 working days

A state-of-the-art photographic identification guide to Europe's whales, dolphins, porpoises and seals This cutting-edge photographic identification guide to Europe's sea mammals-the only such guide of its kind-covers the 39 species of whales, dolphins and porpoises and 9 species of seals found in the region, which spans the eastern Atlantic from Iceland to Macaronesia, and the Mediterranean, Caspian and Baltic seas. Written and illustrated by a team of professional tour guides with extensive experience presenting the region's sea mammals, the guide features more than 180 color photographs, maps and graphics, highlights key identification features and includes information on the range, ecology, behaviour and conservation status of each species. Produced with the marine conservation charity ORCA, the book presents mapping data from a decade of surveys, which shows both current distribution and changes over time. Europe's Sea Mammals is an essential companion for whale watchers and anyone else who is interested in this enigmatic group of mammals. The only photographic guide dedicated to this popular whale-watching region Features more than 180 color photos, maps and graphics Highlights key identification features and provides essential information on the range, ecology, behaviour and conservation status of each species

Marine Mammals - Biology and Conservation (Paperback, Softcover reprint of the original 1st ed. 2001): Peter G.H. Evans, Juan... Marine Mammals - Biology and Conservation (Paperback, Softcover reprint of the original 1st ed. 2001)
Peter G.H. Evans, Juan Antonio Raga
R2,845 Discovery Miles 28 450 Ships in 10 - 15 working days

Interest in marine mammals has increased dramatically in the last few decades, as evidenced by the number of books, scientific papers, and conferences devoted to these animals. Nowadays, a conference on marine mammals can attract between one and two thousand scientists from around the world. This upsurge of interest has resulted in a body of knowledge which, in many cases, has identified major conservation problems facing particular species. At the same time, this knowledge and the associated activities of environmental organisations have served to introduce marine mammals to a receptive public, to the extent that they are now perceived by many as the living icons of biodiversity conservation. Much of the impetus for the current interest in marine mammal conservation comes from "Save the Whale" campaigns started in the 1960s by environmental groups around the world, in response to declining whale populations after over-exploitation by humans. This public pressure led to an international moratorium on whaling recommended in 1972 by the United Nations Conference on the Human Environment in Stockholm, Sweden, and eventually adopted by the International Whaling Commission ten years later. This moratorium largely holds sway to this day, and further protective measures have included the delimitation of extensive areas of the Indian Ocean (1979) and Southern Ocean (1994) as whale sanctuaries.

Embryology of Dolphins - Staging and Ageing of Embryos and Fetuses of Some Cetaceans (Paperback, Softcover reprint of the... Embryology of Dolphins - Staging and Ageing of Embryos and Fetuses of Some Cetaceans (Paperback, Softcover reprint of the original 1st ed. 2000)
Oldrich Sterba, Milan Klima, Bernd Schildger
R2,792 Discovery Miles 27 920 Ships in 10 - 15 working days

The rapid development of molecular biology and genetics has led to renewed interest in embryology, comparative embryology, and studies of the relations between ontogeny and phylogeny. In fact, genes have been identified which are involved in the formation of shapes and structures, and it is becoming apparent that their primary morphological expressions are conspicuously similar in different species. The primarily identical shapes do not become diversified until advanced individualization of embryos, and it is here that it is possible to employ the knowledge of comparative embryology, the branch of science engaged in the study of the development and differentiation of tridimensional structures in different animal groups. However, comparative embryology has been neglected during the past decades, as its development has appeared to have been completed. In our opinion, the decreased interest in comparative embryology has been caused by the fact that often the time factor was not or could not be respected. In fact, in the case of embryos of wild animals even their ontogenetic age and sometimes the duration of intrauterine development are unknown.

Antarctic Seals - Research Methods and Techniques (Hardcover): R.M. Laws Antarctic Seals - Research Methods and Techniques (Hardcover)
R.M. Laws
R3,418 Discovery Miles 34 180 Ships in 12 - 17 working days

Despite its remote and seemingly rigorous environment, the Antarctic is the world's most important habitat for seals, currently supporting more seals than all other parts of the world combined. As various national Antarctic programmes were established to study these animals, the need to standardize techniques became apparent. This book, arising from work by the Scientific Committee on Antarctic Research (Group of Specialists on Seals), gives a detailed account of well-tried and, where possible, agreed methodologies, techniques, procedures and rationale for the collection and initial analysis of data on the biology and population ecology of Antarctic seals. This volume will not only help facilitate comparisons between different regions of Antarctica, but will also provide a guide for those studying seals in other parts of the world and those carrying out research on other large mammal species.

Marine Mammal Physiology - Requisites for Ocean Living (Hardcover): Michael A. Castellini, Jo-Ann Mellish Marine Mammal Physiology - Requisites for Ocean Living (Hardcover)
Michael A. Castellini, Jo-Ann Mellish
R3,210 Discovery Miles 32 100 Ships in 12 - 17 working days

Suppose you were designing a marine mammal. What would you need to think about to allow it to live in the ocean? How would you keep it warm? What would you design to allow it to dive for very long periods to extreme depths? Where would it find water to drink? How would you minimize the cost of swimming, and how would it find its prey in the deep and dark? These questions and more are examined in detail throughout this book. Marine Mammal Physiology: Requisites for Ocean Living is the first textbook focused on how marine mammals live in the sea from a physiological point of view. It explores the essential aspects of what makes a marine mammal different from terrestrial mammals, beyond just their environment. Unlike many publications and books that cover these species from almost all perspectives, this textbook takes a step back to focus on the physiological and biochemical characteristics that have allowed these mammals as a group to exploit effectively the marine environment that is so hostile to humans. The chapter topics are grouped into major themes: diving and locomotion, nutrition and energetics, reproduction, sensory systems, and environmental interactions. Each chapter is arranged around a common perspective and theme: the big picture challenge and summary and what is known specifically by order. To aid you even further, the authors include a "Toolbox" section in each chapter where they discuss the newest methods for understanding and working on the physiology of marine mammals.

Whales and Dolphins - Cognition, Culture, Conservation and Human Perceptions (Hardcover): Philippa Brakes, Mark Peter Simmonds Whales and Dolphins - Cognition, Culture, Conservation and Human Perceptions (Hardcover)
Philippa Brakes, Mark Peter Simmonds
R4,178 Discovery Miles 41 780 Ships in 12 - 17 working days

Whales and dolphins are icons for the conservation movement. They are the most conspicuous ambassadors for entire marine ecosystems and possibly even for the biosphere as a whole. Concurrent with our realisation of impending threats to their environment is a growing scientific understanding of the social and cognitive complexity of many of these species. This book brings together experts in the relevant diverse fields of cetacean research, to provide authoritative descriptions of our current knowledge of the complex behaviour and social organization of whales and dolphins. The authors consider this new information in the context of how different human cultures from around the world view cetaceans and their protection, including attitudes to whaling. They show how new information on issues such as cetacean intelligence, culture and the ability to suffer, warrants a significant shift in global perceptions of this group of animals and how these changes might be facilitated to improve conservation and welfare approaches.

Challenges in Estuarine and Coastal Science - Estuarine and Coastal Sciences Association 50th Anniversary Volume (Paperback):... Challenges in Estuarine and Coastal Science - Estuarine and Coastal Sciences Association 50th Anniversary Volume (Paperback)
John Humphreys, Sally Little
R1,291 Discovery Miles 12 910 Ships in 12 - 17 working days

Estuarine and coastal waters are acknowledged centres for anthropogenic impacts. Superimposed on the complex natural interactions between land, rivers and sea are the myriad consequences of human activity - a spectrum ranging from locally polluting effluents to some of the severest consequences of global climate change. For practitioners, academics and students in the field of coastal science and policy, this timely book examines and exemplifies current and future challenges: from upper estuaries to open coasts and adjacent seas; from tropical to temperate latitudes; from Europe to Australia. This authoritative volume marks the 50th anniversary of the Estuarine and Coastal Sciences Association. Drawing on the expertise of more than 60 specialist contributors, individual chapters address coastal erosion and deposition; open shores to estuaries and deltas; marine plastics; coastal squeeze and habitat loss; tidal freshwaters - saline incursion and estuarine squeeze; restoration management using remote data collection; carbon storage; species distribution and non-natives; shorebirds; Modelling environmental change; physical processes such as sediments and modelling; sea level rise and estuarine tidal dynamics; estuaries as fish nurseries; policy versus reality in coastal conservation; developments in estuarine, coastal and marine management. In addition to providing an overview of current scientific understanding, the material gathered here offers a clear-eyed perspective on what needs to be done to protect these fragile - and vital - ecosystems.

European Whales, Dolphins, and Porpoises - Marine Mammal Conservation in Practice (Paperback): Peter G.H. Evans European Whales, Dolphins, and Porpoises - Marine Mammal Conservation in Practice (Paperback)
Peter G.H. Evans
R2,051 Discovery Miles 20 510 Ships in 12 - 17 working days

European Whales, Dolphins, and Porpoises: Marine Mammal Conservation in Practice presents an intimate view of the workings of international conservation agreements to protect marine mammals, detailing achievements over the last 25 years, identifying weaknesses and making recommendations that governments, scientists, marine stakeholders and the public can take to improve conservation efforts. The book is written by an experienced marine mammal scientist and award-winning conservationist, providing a unique synthesis on their status, distribution and ecology. In addition, it presents information on various conservation threats, including fisheries by catch, contaminants, noise disturbance, plastic ingestion and climate change. This comprehensive resource will appeal to marine mammal conservationists and researchers, as well as environmental and wildlife practitioners at all levels.

Narwhals - Arctic Whales in a Melting World (Paperback): Todd McLeish Narwhals - Arctic Whales in a Melting World (Paperback)
Todd McLeish
R530 R492 Discovery Miles 4 920 Save R38 (7%) Ships in 12 - 17 working days

Among all the large whales on Earth, the most unusual and least studied is the narwhal, the northernmost whale on the planet and the one most threatened by global warming. Narwhals thrive in the fjords and inlets of northern Canada and Greenland. These elusive whales, whose long tusks were the stuff of medieval European myths and Inuit legends, are uniquely adapted to the Arctic ecosystem and are able to dive below thick sheets of ice to depths of up to 1,500 meters in search of their prey-halibut, cod, and squid. Join Todd McLeish as he travels high above the Arctic circle to meet: Teams of scientific researchers studying the narwhal's life cycle and the mysteries of its tusk Inuit storytellers and hunters Animals that share the narwhals' habitat: walruses, polar bears, bowhead and beluga whales, ivory gulls, and two kinds of seals McLeish consults logbooks kept by whalers and explorers and interviews folklorists and historians to tease out the relationship between the real narwhal and the mythical unicorn. In Colorado, he visits climatologists studying changes in the seasonal cycles of the Arctic ice. From a history of the trade in narwhal tusks to descriptions of narwhals' vocalizations as heard through hydrophones, Narwhals reveals the beauty and thrill of the narwhal and its habitat, and the threat it faces from a rapidly changing world. Watch the trailer: http://www.youtube.com/watch?v=gHwaqdKyLCQ&list=UUge4MONgLFncQ1w1C_BnHcw&index=9&feature=plcp

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Dick Hawkes Hardcover R1,053 Discovery Miles 10 530
Sharks of the World - A Complete Guide
David A. Ebert, Marc Dando, … Hardcover R1,304 Discovery Miles 13 040
How to Speak Whale - A Voyage into the…
Tom Mustill Hardcover R439 Discovery Miles 4 390
Ecology and Conservation of Pinnipeds in…
Gisela Heckel, Yolanda Schramm Hardcover R4,245 Discovery Miles 42 450
The Emergence of Whales - Evolutionary…
J.G.M. Thewissen Hardcover R6,608 Discovery Miles 66 080

 

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