Download or read book Restoring Sea Otters to the Oregon Coast written by Tim Tinker and published by . This book was released on 2023-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Southern Sea Otter Recovery Plan written by and published by . This book was released on 1982 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ethology and Behavioral Ecology of Sea Otters and Polar Bears written by Randall W. Davis and published by Springer Nature. This book was released on 2021-07-03 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sea 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.
Download or read book Applied Zooarchaeology written by Lisa Nagaoka and published by Eliot Werner Publications. This book was released on 2016-12-31 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last two decades, zooarchaeologists have increasingly focused aspects of their work on conservation biology. Zooarchaeological data represent an empirical record of past human-animal interactions, which provides conservation with a deep temporal perspective. There are many challenges that face the archaeologist as conservation biologist, however, that have little to do with deep time, faunal remains, and zooarchaeological method and theory. In this book we use a series of case studies with which each of the authors has relevant personal experience to explore the types of interdisciplinary challenges that zooarchaeologists face when crossing into the world of environmental management and animal conservation. Never has there been a greater need for multi-vocal perspectives in conservation biology. This book shows zooarchaeologists how to use zooarchaeological perspectives to help meet those needs, while crossing traditional academic disciplinary boundaries.
Download or read book Ethnobiology written by E. N. Anderson and published by John Wiley & Sons. This book was released on 2012-02-14 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: The single comprehensive treatment of the field, from the leading members of the Society of Ethnobiology The field of ethnobiology—the study of relationships between particular ethnic groups and their native plants and animals—has grown very rapidly in recent years, spawning numerous subfields. Ethnobiological research has produced a wide range of medicines, natural products, and new crops, as well as striking insights into human cognition, language, and environmental management behavior from prehistory to the present. This is the single authoritative source on ethnobiology, covering all aspects of the field as it is currently defined. Featuring contributions from experienced scholars and sanctioned by the Society of Ethnobiology, this concise, readable volume provides extensive coverage of ethical issues and practices as well as archaeological, ethnological, and linguistic approaches. Emphasizing basic principles and methodology, this unique textbook offers a balanced treatment of all the major subfields within ethnobiology, allowing students to begin guided research in any related area—from archaeoethnozoology to ethnomycology to agroecology. Each chapter includes a basic introduction to each topic, is written by a leading specialist in the specific area addressed, and comes with a full bibliography citing major works in the area. All chapters cover recent research, and many are new in approach; most chapters present unpublished or very recently published new research. Featured are clear, distinctive treatments of areas such as ethnozoology, linguistic ethnobiology, traditional education, ethnoecology, and indigenous perspectives. Methodology and ethical action are also covered up to current practice. Ethnobiology is a specialized textbook for advanced undergraduates and graduate students; it is suitable for advanced-level ethnobotany, ethnobiology, cultural and political ecology, and archaeologically related courses. Research institutes will also find this work valuable, as will any reader with an interest in ethnobiological fields.
Download or read book Oregon Historical Quarterly written by Oregon Historical Society and published by . This book was released on 2009 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Draft Revised Recovery Plan for the Southern Sea Otter Enhydra Lutris Nereis written by and published by . This book was released on 2000 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oregon Coastal Salmon Restoration written by and published by . This book was released on 1997 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Southern Sea Otters Translocation CA OR written by and published by . This book was released on 1987 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Final Environmental Impact Statement for Translocation of Southern Sea Otters without special title written by and published by . This book was released on 1987 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Administration of the Marine Mammal Protection Act of 1972 written by and published by . This book was released on 1994 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The responsibility of the Department ... is limited by the Act to ... polar bear, sea otter, and marine otter ... walrus, and ... manatees and dugong. Accordingly ... herewith is the report ... with regard to those animals.
Download or read book Final Revised Recovery Plan for the Southern Sea Otter Enhydra Lutris Nereis written by Douglas P. DeMaster and published by . This book was released on 2002 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sea Otter Conservation written by Shawn E. Larson and published by Academic Press. This book was released on 2014-12-23 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sea 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
Download or read book Amendment 16 3 to the Pacific Coast Groundfish Fishery Management Plan Rebuilding Plans for Bocaccio Cowcod Widow Rockfish and Yelloweye Rockfish written by and published by . This book was released on 2004 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amendment 16 2 to the Pacific Coast Groundfish Fishery Management Plan Rebuilding Plans for Darkblotched Rockfish Pacific Ocean Perch Canary Rockfish and Lingcod written by and published by . This book was released on 2003 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aleutian Islands National Wildlife Refuge written by and published by . This book was released on 1966 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coast Guard Authorizations written by United States. Congress. Senate. Committee on Commerce, Science, and Transportation and published by . This book was released on 1984 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
