Download or read book Elephant Seals written by Bernard J. Le Boeuf and published by Cambridge University Press. This book was released on 2021-10-07 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: In-depth documentation of the diving, foraging, and migratory behavior of a superlative marine mammal, based on 50 years of study.
Download or read book Elephant Seals written by Burney J. Le Beouf and published by Univ of California Press. This book was released on 2023-11-10 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: The largest of all seals, elephant seals rank among the most impressive of marine mammals. They are renowned for their spectacular recovery from near-extinction at the end of the nineteenth century when seal hunters nearly eliminated the entire northern species. No other vertebrate has come so close to extinction and made such a complete recovery. The physiological extremes that elephant seals can tolerate are also remarkable: females fast for a month while lactating, and the largest breeding males fast for over one hundred days during the breeding seasons, at which times both sexes lose forty percent of their body weight. Elephant seals dive constantly during their long foraging migrations, spending more time under water than most whales and diving deeper and longer than any other marine mammal. This first book-length discussion of elephant seals brings together worldwide expertise from scientists who describe and debate recent research, including the history and status of various populations, their life-history tactics, and other findings obtained with the help of modern microcomputer diving instruments attached to free-ranging seals. Essential for all marine mammalogists for its information and its methodological innovations, Elephant Seals will also illuminate current debates about species extinctions and possible means of preventing them. This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1994.
Download or read book Wildlife 2001 Populations written by D.R. McCullough and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1984, a conference called Wildlife 2000: Modeling habitat relationships of terrestrial vertebrates, was held at Stanford Sierra Camp at Fallen Leaf Lake in the Sierra Nevada Mountains of California. The conference was well-received, and the published volume (Verner, J. , M. L. Morrison, and C. J. Ralph, editors. 1986. Wildlife 2000: modeling habitat relationships of terrestrial vertebrates, University of Wisconsin Press, Madison, Wisconsin, USA) proved to be a landmark publication that received a book award by The Wildlife Society. Wildlife 2001: populations was a followup conference with emphasis on the other major biological field of wildlife conservation and management, populations. It was held on July 29-31, 1991, at the Oakland Airport Hilton Hotel in Oakland, California, in accordance with our intent that this conference have a much stronger international representation than did Wildlife 2000. The goal of the conference was to bring together an international group of specialists to address the state of the art in wildlife population dynamics, and set the agenda for future research and management on the threshold of the 21st century. The mix of specialists included workers in theoretical, as well as practical, aspects of wildlife conservation and management. Three general sessions covered methods, modelling, and conservation of threatened species.
Download or read book The Northern Elephant Seal written by Charles Haskins Townsend and published by . This book was released on 1912 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elephant Seals written by Burney J. Le Beouf and published by Univ of California Press. This book was released on 2022-07-15 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: The largest of all seals, elephant seals rank among the most impressive of marine mammals. They are renowned for their spectacular recovery from near-extinction at the end of the nineteenth century when seal hunters nearly eliminated the entire northern species. No other vertebrate has come so close to extinction and made such a complete recovery. The physiological extremes that elephant seals can tolerate are also remarkable: females fast for a month while lactating, and the largest breeding males fast for over one hundred days during the breeding seasons, at which times both sexes lose forty percent of their body weight. Elephant seals dive constantly during their long foraging migrations, spending more time under water than most whales and diving deeper and longer than any other marine mammal. This first book-length discussion of elephant seals brings together worldwide expertise from scientists who describe and debate recent research, including the history and status of various populations, their life-history tactics, and other findings obtained with the help of modern microcomputer diving instruments attached to free-ranging seals. Essential for all marine mammalogists for its information and its methodological innovations, Elephant Seals will also illuminate current debates about species extinctions and possible means of preventing them. This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1994.
Download or read book Elephants from the Sea written by Lynn M. Stone and published by . This book was released on 1991 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the physical characteristics, behavior, and unusual life cycle of this large seal, which lives part of its life on land and part far out to sea.
Download or read book Return from Extinction written by Linda Lea Richards and published by Orca Wild. This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This nonfiction book for middle readers tells the story of the northern elephant seal, from being hunted to near extinction less than 100 years ago to their thriving population of more than 250,000 today. Illustrated with photos from the author.
Download or read book The Northern Elephant Seal written by Charles Haskins Townsend and published by . This book was released on 1912 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Northern Elephant Seal written by John E. Becker and published by Greenhaven Press, Incorporated. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Northern elephant seals were almost driven to extinction during the nineteenth century when they were hunted for their valuable oil. Once they were given protection early in the twentieth century they began to recover. Today, they are found in healthy numbers once again along the Pacific Coast of North America.
Download or read book Pinnipeds and El Ni o written by Fritz Trillmich and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: El Niño is a meteorological and oceanographic phenomenon, which occurs at irregular intervals in the eastern tropical Pacific. Its most obvious characteristic is the warming of surface waters, which causes enormous disturbances of the marine environment. A severe Niño may also affect continental systems worldwide. This book gathers in a comprehensive way the information available on the effects of the exceptionally strong 1982-83 Niño on a group of marine mammals, the pinnipeds. It presents an analysis of the effects of environmental stress on the populations of top predators. Data and interpretations are based on a most unusual collection of long-term studies of pinniped population dynamics, behavior and ecology which spanned the El Niño event. The responses of pinniped populations to the El Niño disturbance of the marine ecosystem also has important implications for the management and conservation of marine mammal populations.
Download or read book Shadows of Existence written by Matthew A. Bille and published by Surrey, B.C. : Hancock House. This book was released on 2006 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: The age of zoological discovery has not passed. Every year, spectacular and exciting new species are being located and classified, adding to our knowledge of the animal kingdom. New whales, deer, snakes, sharks, and birds are just some of the creatures we have learned about in the past decade. Moreover, the seas and forests continue to conceal unsolved mysteries of zoology. Are there undiscovered big cats and unclassified apes hidden in the world's forests? Do large animals of unknown type lurk in deep lakes or in the oceans? The discoveries, rediscoveries, controversies, and mysteries of modern zoology are collected here in Shadows of Existence, a thoroughly researched and up to date guide to the wonders of nature.
Download or read book Marine Mammals of the World A Comprehensive Guide to Their Identification written by Thomas Allen Jefferson and published by Elsevier. This book was released on 2011-08-29 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: With coverage on all the marine mammals of the world, authors Jefferson, Webber, and Pitman have created a user-friendly guide to identify marine mammals alive in nature (at sea or on the beach), dead specimens “in hand , and also to identify marine mammals based on features of the skull. This handy guide provides marine biologists and interested lay people with detailed descriptions of diagnostic features, illustrations of external appearance, beautiful photographs, dichotomous keys, and more. Full color illustrations and vivid photographs of every living marine mammal species are incorporated, as well as comprehendible maps showing a range of information. For readers who desire further consultation, authors have included a list of literature references at the end of each species account. For an enhanced understanding of habitation, this guide also includes recognizable geographic forms described separately with colorful paintings and photographs. All of these essential tools provided make Marine Mammals of the World the most detailed and authoritative guide available! * Contains superb photographs of every species of marine mammal for accurate identification * Authors’ collective experience adds up to 80 years, and have seen nearly all of the species and distinctive geographic forms described in the guide * Provides the most detailed and anatomically accurate illustrations currently available * Special emphasis is placed on the identification of species in “problem groups, such as the beaked whales, long-beaked oceanic dolphin, and southern fur seals * Includes a detailed list of sources for more information at the back of the book.
Download or read book The Comeback Kids Book 1 the Northern Elephant Seals written by Penelope Dyan and published by . This book was released on 2015-06-28 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Northern Elephant Seal, Mirounga angustirostris, the guys with the great big noses and the squabbling harems, are the really big comeback kids; and we mean that, because not only are the elephant seals really big, they have made a really big comeback! Hundreds of thousands of these really fun creatures once inhabited the Pacific Ocean, and then they were wholesale slaughtered in the 1800's for their blubber that could be rendered into oil. Only 50-100 of them were left to roam the vast ocean where they spend most of their time until it is time for them to come ashore to molt or mate. They lumber across land very slowly and they mate and molt on land, so the elephant seals were a very easy target for their human hunters. In 1922 the Mexican government enacted laws to protect them, and a few years later the United States of America did the very same thing. Miraculously these grand animals began to slowly reappear! Today it is estimated there are about 160,000 elephant seals! Males have a life expectancy of 14 years, while a female elephant seal lives to the ripe old age of 20! They are pinnipeds and molt like all pinnipeds do (to get rid of old skin and hair) but they do that all at once, once a year, during the spring and summer; and exactly when they molt depends on the age that they are, and who they are! The females and juveniles molt from April to May, and the young males molt from May to June, while the Adult males molt from July to August. They come to shore to mate and to give birth in December and hang out on the beach for a few months, because the process of birthing and mating and weaning must take its proper course. The female mates approximately 24 days after giving birth. The males are 14 to 16 feet in length and weigh up to two and a half tons each, and the females are a petite 10 to 12 feet in length and weigh a mere 1200 to 2000 pounds. This is the first book in "The Comeback Kids" Book Series. It is meant to inspire and to make you realize anything is possible in this world if we stop doing what is wrong and do what is right, and give mother nature the opportunity to nourish herself. The Photographs by John D. Weigand were taken with reverence at the direction of this author at the seal rookery at Piedras Blancas, at the southern end of Big Sur on the California coast, twelve miles north of Cambria.
Download or read book The Naturalist s Notebook written by Nathaniel T. Wheelwright and published by Storey Publishing. This book was released on 2017-10-17 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Become a more attentive observer and deepen your appreciation for the natural world. The unique five-year calendar format of The Naturalist’s Notebook helps you create a long-term record and point of comparison for memorable events, such as the first songbird you hear in spring, your first monarch butterfly sighting of summer, or the appearance of the northern lights. Biologist Nathaniel T. Wheelwright and best-selling author Bernd Heinrich teach nature lovers of all ages what to look for outdoors no matter where you live, using Heinrich’s classic illustrations as inspiration. As you jot down one observation a day, year after year, your collected field notes will serve as a valuable record of your piece of the planet. This deluxe book, with a three-piece case, gilt edges, a burgundy ribbon bookmark, and a belly band with gold foil stamping, is a perfect gift for all nature lovers.
Download or read book Human Impacts on Seals Sea Lions and Sea Otters written by Todd J. Braje and published by Univ of California Press. This book was released on 2011-03-23 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: “The bones recovered from the middens of the northeastern Pacific shorelines have important stories to tell biologists, marine mammalogists, and those concerned with marine conservation. This volume unearths a wealth of information about the historical ecology of seals, sea lions, and sea otters in the North Pacific that spans thousands of years. It provides fascinating insights into how the world once looked, and how it may one day look again as seals, sea lions, and sea otters reclaim and recolonize their former haunts.”—Andrew Trites, Director, Marine Mammal Research Unit, University of British Columbia “Braje and Rick have assembled a compelling set of case studies on the long-term and complex interactions between people, marine mammals, and environments in the Northeast Pacific. The promise of zooarchaeology as historical science is on full display, as researchers use geochemistry, aDNA, morphometrics, and traditional analytic methods to address questions of utmost importance to the long-term health of coastal ecosystems. If this book doesn't convince conservation biology about the need to take the long view of animal histories and ecosystems into account in developing conservation management plans, I'm not sure what will.”—Virginia L. Butler, Department of Anthropology, Portland State University
Download or read book The Elephant Seal written by William Reynolds Sanford and published by . This book was released on 1987 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the physical characteristics, habits, and natural environment of the elephant seal.
Download or read book Ecology and Conservation of Pinnipeds in Latin America written by Gisela Heckel and published by Springer. This book was released on 2022-02-25 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
