Aspects Of Predation Of Seals By Polar Bears

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A Little Less Arctic

Author : Steven H. Ferguson
Publisher : Springer Science & Business Media
ISBN 13 : 9048191211
Total Pages : 313 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis A Little Less Arctic by : Steven H. Ferguson

Download or read book A Little Less Arctic written by Steven H. Ferguson and published by Springer Science & Business Media. This book was released on 2010-05-30 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Arctic Canada, Hudson Bay is a site of great exploration history, aboriginal culture, and a vast marine wilderness supporting large populations of marine mammals and birds. These include some of the most iconic Arctic animals like beluga, narwhal, bowhead whales, and polar bears. Due to the challenges of conducting field research in this region, some of the mysteries of where these animals move, and how they are able to survive in such seemingly inhospitable, ice-choked habitats are just now being unlocked. For example, are polar bears being replaced by killer whales? This new information could not be more salient, as the Hudson Bay Region is undergoing rapid environmental change due to global warming, as well as increased pressures from industrial development interests. A Little Less Arctic brings together some of the world’s leading Arctic scientists to present the current state of knowledge on the physical and biological characteristics of Hudson Bay.

Bears of the World

Author : Vincenzo Penteriani
Publisher : Cambridge University Press
ISBN 13 : 9781108483520
Total Pages : 500 pages
Book Rating : 4.4/5 (835 download)

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Book Synopsis Bears of the World by : Vincenzo Penteriani

Download or read book Bears of the World written by Vincenzo Penteriani and published by Cambridge University Press. This book was released on 2020-11-30 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bears have fascinated people since ancient times. The relationship between bears and humans dates back thousands of years, during which time we have also competed with bears for shelter and food. In modern times, bears have come under pressure through encroachment on their habitats, climate change, and illegal trade in their body parts, including the Asian bile bear market. The IUCN lists six bears as vulnerable or endangered, and even the least concern species, such as the brown bear, are at risk of extirpation in certain countries. The poaching and international trade of these most threatened populations are prohibited, but still ongoing. Covering all bears species worldwide, this beautifully illustrated volume brings together the contributions of 200 international bear experts on the ecology, conservation status, and management of the Ursidae family. It reveals the fascinating long history of interactions between humans and bears and the threats affecting these charismatic species.

Polar Bears

Author : IUCN Polar Bear Specialist Group. Working Meeting
Publisher : IUCN
ISBN 13 : 9782831700397
Total Pages : 118 pages
Book Rating : 4.7/5 (3 download)

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Book Synopsis Polar Bears by : IUCN Polar Bear Specialist Group. Working Meeting

Download or read book Polar Bears written by IUCN Polar Bear Specialist Group. Working Meeting and published by IUCN. This book was released on 1991 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the tenth working meeting of the IUCN/SSC Polar Bear Specialist Group held in Sochi, USSR, October 25-29, 1988. Emphasis on polar bear conservation and management with reports from Canada, Greenland, Svalbard, Norway, Alaska and Soviet Arctic.

Polar Bears

Author : Andrew E. Derocher
Publisher : JHU Press
ISBN 13 : 1421403056
Total Pages : 262 pages
Book Rating : 4.4/5 (214 download)

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Book Synopsis Polar Bears by : Andrew E. Derocher

Download or read book Polar Bears written by Andrew E. Derocher and published by JHU Press. This book was released on 2012-03-08 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents an introduction to the polar bear, discussing its evolution, physical characteristics, life cycle, predatory behavior, habitat, and the threats to its existence from global warming.

Examining Threats and Protections for the Polar Bear

Author : United States. Congress. Senate. Committee on Environment and Public Works
Publisher :
ISBN 13 :
Total Pages : 484 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Examining Threats and Protections for the Polar Bear by : United States. Congress. Senate. Committee on Environment and Public Works

Download or read book Examining Threats and Protections for the Polar Bear written by United States. Congress. Senate. Committee on Environment and Public Works and published by . This book was released on 2014 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Environmental Assessment of the Alaskan Continental Shelf

Author :
Publisher :
ISBN 13 :
Total Pages : 596 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Environmental Assessment of the Alaskan Continental Shelf by :

Download or read book Environmental Assessment of the Alaskan Continental Shelf written by and published by . This book was released on 1983 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Top Predators in Marine Ecosystems

Author : C. J. Camphuysen
Publisher : Cambridge University Press
ISBN 13 : 1139454927
Total Pages : 370 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Top Predators in Marine Ecosystems by : C. J. Camphuysen

Download or read book Top Predators in Marine Ecosystems written by C. J. Camphuysen and published by Cambridge University Press. This book was released on 2006-05-11 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seals, seabirds, whales and dolphins are at the top of marine food chains: studying their ecology can help identify and monitor changes in wider marine ecosystems. This book examines our current understanding of marine predator ecology and investigates how it can be used in management and conservation of marine habitats.

Ecology of Arctic Environments

Author : Sarah J. Woodin
Publisher : Cambridge University Press
ISBN 13 : 9780521839983
Total Pages : 304 pages
Book Rating : 4.8/5 (399 download)

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Book Synopsis Ecology of Arctic Environments by : Sarah J. Woodin

Download or read book Ecology of Arctic Environments written by Sarah J. Woodin and published by Cambridge University Press. This book was released on 1997-08 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Once thought of as a pristine environment, it is now all too apparent that the Arctic is a sink for pollutants transported northwards over long distances in the atmosphere and oceans, and is also likely to be subject to major climate change as a result of global warming. Many ecologists are currently seeking to further our understanding of how arctic ecosystems function, and to detect and predict anthropogenic changes which may occur within them. This book, resulting from a British Ecological Society Special Symposium, addresses these issues.

Ethology and Behavioral Ecology of Sea Otters and Polar Bears

Author : Randall W. Davis
Publisher : Springer Nature
ISBN 13 : 3030667960
Total Pages : 366 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Ethology and Behavioral Ecology of Sea Otters and Polar Bears by : Randall W. Davis

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.

Proceedings of a Synthesis Meeting

Author : Joe Clyde Truett
Publisher :
ISBN 13 :
Total Pages : 256 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Proceedings of a Synthesis Meeting by : Joe Clyde Truett

Download or read book Proceedings of a Synthesis Meeting written by Joe Clyde Truett and published by . This book was released on 1984 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents and evaluates available environmental data - transport and fate of pollutants, environmental hazards, biota and their food resources, and socioeconomic issues - related to potential offshore petroleum development in Barrow Arch planning area. Contains information presented at first Barrow Arch Synthesis Meeting held in Girdwood, Alaska, October 31- November 2, 1983.

Collected Reprints

Author :
Publisher :
ISBN 13 :
Total Pages : 618 pages
Book Rating : 4.:/5 (41 download)

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Book Synopsis Collected Reprints by :

Download or read book Collected Reprints written by and published by . This book was released on 1993 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Journal of the Fisheries Research Board of Canada

Author : Fisheries Research Board of Canada
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.X/5 ( download)

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Book Synopsis Journal of the Fisheries Research Board of Canada by : Fisheries Research Board of Canada

Download or read book Journal of the Fisheries Research Board of Canada written by Fisheries Research Board of Canada and published by . This book was released on 1977 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ethology and Behavioral Ecology of Phocids

Author : Daniel P. Costa
Publisher : Springer Nature
ISBN 13 : 3030889238
Total Pages : 651 pages
Book Rating : 4.0/5 (38 download)

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Book Synopsis Ethology and Behavioral Ecology of Phocids by : Daniel P. Costa

Download or read book Ethology and Behavioral Ecology of Phocids written by Daniel P. Costa and published by Springer Nature. This book was released on 2022-03-17 with total page 651 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phocid (or earless or true) seals are ecologically diverse, occupying habitats from the tropics to the poles in marine and freshwater and feeding on anything from tiny zooplankton to other marine mammals. There are 18 species of phocid seals, the smallest species (ringed seal) is more than 20 times smaller than the largest (southern elephant seal), with marked sexual dimorphism present in some species. This book examines the behavior, ecology, and physiology that allow phocid seals to inhabit such a wide range of habitats. The book is composed of 16 chapters written by 37 authors from 8 countries. The book first describes the general patterns of phocid behavior, followed by descriptions of what is known about well-studied species. We have taken a holistic approach, focusing not only on the behaviors themselves but also on the factors that constrain the expression of behavior and the proximate mechanisms driving behavior. In many cases, the chapters represent collaborations between well-established researchers and early-mid career individuals who bring new perspectives to help carry the field of phocid behavioral ecology well into the future.

The Pinnipeds

Author : Marianne Riedman
Publisher : Univ of California Press
ISBN 13 : 0520320085
Total Pages : 515 pages
Book Rating : 4.5/5 (23 download)

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Book Synopsis The Pinnipeds by : Marianne Riedman

Download or read book The Pinnipeds written by Marianne Riedman and published by Univ of California Press. This book was released on 2023-12-22 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 1990. 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

Top Predators in Marine Ecosystems

Author : C. J. Camphuysen
Publisher : Cambridge University Press
ISBN 13 : 9780521847735
Total Pages : 392 pages
Book Rating : 4.8/5 (477 download)

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Book Synopsis Top Predators in Marine Ecosystems by : C. J. Camphuysen

Download or read book Top Predators in Marine Ecosystems written by C. J. Camphuysen and published by Cambridge University Press. This book was released on 2006-05-11 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sustainable exploitation of the marine environment depends upon our capacity to develop systems of management with predictable outcomes. Unfortunately, marine ecosystems are highly dynamic and this property could conflict with the objective of sustainable exploitation. This book investigates the theory that the population and behavioural dynamics of predators at the upper end of marine food chains can be used to assist with management. Since these species integrate the dynamics of marine ecosystems across a wide range of spatial and temporal scales, they offer new sources of information that can be formally used in setting management objectives. This book examines the current advances in the understanding of the ecology of marine predators and will investigate how information from these species could be used in management.

Collected Reprints

Author : Southwest Fisheries Center (U.S.)
Publisher :
ISBN 13 :
Total Pages : 1016 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Collected Reprints by : Southwest Fisheries Center (U.S.)

Download or read book Collected Reprints written by Southwest Fisheries Center (U.S.) and published by . This book was released on 1984 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Biology of Marine Mammals

Author : John E. Reynolds
Publisher : Smithsonian Institution
ISBN 13 : 1588344207
Total Pages : 589 pages
Book Rating : 4.5/5 (883 download)

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Book Synopsis Biology of Marine Mammals by : John E. Reynolds

Download or read book Biology of Marine Mammals written by John E. Reynolds and published by Smithsonian Institution. This book was released on 2013-08-06 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taking an integrated approach to the biology of marine carnivores, cetaceans, and sirenians, twenty-two prominent researchers compare marine mammals with one another and with terrestrial mammals, providing a framework for fundamental biological and ecological concepts. They describe functional morphology, sensory systems, energetics, reproduction, communication and cognition, behavior, distribution, population biology, and feeding ecology. They also detail the physiological adaptations—for such activities and processes as diving, thermo-regulation, osmoregulation, and orientation—that enable marine mammals to exploit their aquatic environment.