The Sea Otter in the Eastern Pacific Ocean
Author: Karl W. Kenyon
Publisher:
Published: 1969
Total Pages: 384
ISBN-13:
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The Sea Otter in the Eastern Pacific Ocean
Author: Karl W. Kenyon
Publisher:
Published: 1975
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKThe Sea Otter in the Eastern Pacific Ocean (Classic Reprint)
Author: Karl W. Kenyon
Publisher: Forgotten Books
Published: 2018-10-05
Total Pages: 374
ISBN-13: 9781391649986
DOWNLOAD EBOOKExcerpt from The Sea Otter in the Eastern Pacific Ocean The cooperation of Game Biologists of the Alaska Department of Fish and Game was of particular value. Reproductive tracts, stomachs, other specimens, and information contributed by them furnished much of the material upon which this report is based. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Sea Otters
Author: Richard Ravalli
Publisher: U of Nebraska Press
Published: 2021-06
Total Pages: 216
ISBN-13: 1496225007
DOWNLOAD EBOOKAn examination of sea otters in a Pacific World context and an exploration of how this iconic sea mammal once defined the world’s largest oceanscape.
Serendipity
Author: James A. Estes
Publisher: Univ of California Press
Published: 2020-11-10
Total Pages: 294
ISBN-13: 0520377494
DOWNLOAD EBOOK"Many of the findings in the book . . . are classics of ecology. . . . A rare and delightful insight into timely science."—Jane Lubchenco, Nature "Estes's refreshing narrative deftly weaves rigorous science with personal reflection to create an absorbing and introspective read that is equal parts memoir, ecological textbook, and motivational guidebook for young ecologists."—Science To newly minted biologist James Estes, the sea otters he was studying in the leafy kelp forests off the coast of Alaska appeared to have an unbalanced relationship with their greater environment. Gorging themselves on the sea urchins that grazed among the kelp, these small charismatic mammals seemed to give little back in return. But as Estes dug deeper, he unearthed a far more complex relationship between the otter and its underwater environment, discovering that otters play a critical role in driving positive ecosystem dynamics. While teasing out the connective threads, he began to question our assumptions about ecological relationships. These questions would ultimately inspire a lifelong quest to better understand the surprising complexity of our natural world and the unexpected ways we discover it. Serendipity tells the story of James Estes’s life as a naturalist and the concepts that have driven his interest in researching the ecological role of top-level predators. Using the relationships between sea otters, kelp, and sea urchins as a touchstone, Estes retraces his investigations of numerous other species, ecosystems, and ecological processes in an attempt to discover why ecologists can learn so many details about the systems in which they work and yet understand so little about the broader processes that influence these systems. Part memoir, part natural history, and deeply inquisitive, Serendipity will entertain and inform readers as it raises thoughtful questions about our relationship with the natural world.
The Great Ocean
Author: David Igler
Publisher: Oxford University Press
Published: 2013-03-18
Total Pages: 268
ISBN-13: 0199323739
DOWNLOAD EBOOKThe Pacific of the early eighteenth century was not a single ocean but a vast and varied waterscape, a place of baffling complexity, with 25,000 islands and seemingly endless continental shorelines. But with the voyages of Captain James Cook, global attention turned to the Pacific, and European and American dreams of scientific exploration, trade, and empire grew dramatically. By the time of the California gold rush, the Pacific's many shores were fully integrated into world markets-and world consciousness. The Great Ocean draws on hundreds of documented voyages--some painstakingly recorded by participants, some only known by archeological remains or indigenous memory--as a window into the commercial, cultural, and ecological upheavals following Cook's exploits, focusing in particular on the eastern Pacific in the decades between the 1770s and the 1840s. Beginning with the expansion of trade as seen via the travels of William Shaler, captain of the American Brig Lelia Byrd, historian David Igler uncovers a world where voyagers, traders, hunters, and native peoples met one another in episodes often marked by violence and tragedy. Igler describes how indigenous communities struggled against introduced diseases that cut through the heart of their communities; how the ordeal of Russian Timofei Tarakanov typified the common practice of taking hostages and prisoners; how Mary Brewster witnessed first-hand the bloody "great hunt" that decimated otters, seals, and whales; how Adelbert von Chamisso scoured the region, carefully compiling his notes on natural history; and how James Dwight Dana rivaled Charles Darwin in his pursuit of knowledge on a global scale. These stories--and the historical themes that tie them together--offer a fresh perspective on the oceanic worlds of the eastern Pacific. Ambitious and broadly conceived, The Great Ocean is the first book to weave together American, oceanic, and world history in a path-breaking portrait of the Pacific world.
Sea Otter Rescue
Author:
Publisher: Owlkids
Published: 2016
Total Pages: 44
ISBN-13: 9781771471756
DOWNLOAD EBOOKExplores how orphaned sea otters are cared for at the Alaska SeaLife Center.
Sea Otter Conservation
Author: Shawn Larson
Publisher: Academic Press
Published: 2014-12-23
Total Pages: 468
ISBN-13: 0128016876
DOWNLOAD EBOOKSea otters are good indicators of ocean health. In addition, they are a keystone species, offering a stabilizing effect on ecosystem, controlling sea urchin populations that would otherwise inflict damage to kelp forest ecosystems. The kelp forest ecosystem is crucial for marine organisms and contains coastal erosion. With the concerns about the imperiled status of sea otter populations in California, Aleutian Archipelago and coastal areas of Russia and Japan, the last several years have shown growth of interest culturally and politically in the status and preservation of sea otter populations. Sea Otter Conservation brings together the vast knowledge of well-respected leaders in the field, offering insight into the more than 100 years of conservation and research that have resulted in recovery from near extinction. This publication assesses the issues influencing prospects for continued conservation and recovery of the sea otter populations and provides insight into how to handle future global changes. - Covers scientific, cultural, economic and political components of sea otter conservation - Provides guidance on how to manage threats to the sea otter populations in the face of future global changes - Highlights the effects that interactions of coastal animals have with the marine ecosystem
Selected Bibliography on the Sea Otter
Author: Ethel I. Todd
Publisher:
Published: 1972
Total Pages: 52
ISBN-13:
DOWNLOAD EBOOKBibliography stressing recent literature dealing with biology of the sea otter (Enhydra lutris).
Ethology and Behavioral Ecology of Sea Otters and Polar Bears
Author: Randall W. Davis
Publisher: Springer Nature
Published: 2021-07-03
Total Pages: 366
ISBN-13: 3030667960
DOWNLOAD EBOOKSea otters and polar bears are carnivorous marine mammals that still resemble their terrestrial ancestors. Compared with Cetacea (whales and dolphins), Sirenia (dugongs and manatees), and Pinnipedia (seals, sea lions, and walrus), they are less adapted for an aquatic life and the most recently evolved among marine mammals. Sea otters are amphibious but seldom come ashore, and polar bears primarily occur on sea ice or along the shore. When at sea, both species spend most of their time swimming at the surface or making short, shallow dives when foraging or pursuing prey. Indeed, polar bears rarely pursue seals in water. Nevertheless, polar bears are powerful swimmers and will stalk seals from the water. As with many other large carnivores, they are solitary hunters. Although sea otters are gregarious and form aggregations at sea called rafts, they are primarily asocial. Except during mating, the principal interaction among sea otters occurs between a female and offspring during the six-month dependency period. In large carnivores (e.g., wolves and lions) that feed on ungulates, sociality and cooperation are favored because of the need to capture large prey and defend carcasses. Polar bears, which are the largest terrestrial carnivore, are solitary hunters of seals and are neither gregarious nor social. Males and females briefly associate during courtship and mating. During this time, males aggressively compete for females. At other times, males generally avoid each other except for aggregations of males that form while summering on land, and females with cubs avoid males, which are known for infanticide. As with sea otters, the interaction of polar bears outside of mating occurs between a female and her offspring during the 2-3 year dependency period. This interaction is critically important when altricial cubs are born in the winter den. This book provides new insight into the ethology and behavioral ecology of sea otters and polar bears. Each chapter reviews the discoveries of previous studies and integrates recent research using new techniques and technology. The authors also address historic and current anthropogenic challenges for their survival as climate change alters entire marine ecosystems.
