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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
Fur Seals and Sea Lions by Roger Kirkwood,Simon Goldsworthy Pdf
Fur seals and sea lions are charismatic, large carnivores that engage us with both their skill and playful antics. Although all species in Australian waters were harvested to near extinction 200 years ago, fur seals are recovering and are now common in near-shore waters across southern Australia. Sea lions, however, are endangered. Their populations appear not to have recovered like fur seals and are declining at some locations. Fur seals and sea lions are important top level predators and play an important role in Australia’s temperate marine ecosystems. Key threats they currently face relate to human activities, particularly interactions with fisheries. This book outlines the comparative evolutionary ecology, biology, life-history, behaviour, conservation status, threats, history of human interactions and latest research on the three species of otariids that live in the waters of southern Australia: the Australian fur seal, New Zealand fur seal and Australian sea lion. It also includes brief descriptions of Antarctic and Subantarctic seals that occupy the Antarctic pack-ice and remote Australian territories of Macquarie Island and Heard Island.
Behavior and Ecology of the Northern Fur Seal by Roger L. Gentry Pdf
Covering the behavior and ecology of the northern fur seal, this book is a model long-term study of marine mammals, one that tests theory through both observation of undisturbed behavior and manipulative experiments on individuals. Here Roger Gentry draws on nearly two decades of research on three different islands to show how behavior among these seals changes with population size, sex ratio, and environment, to explain the behavior of the population beginning with individuals, and to generalize the results to other members of the eared seal family. In so doing, he offers one of the most comprehensive studies of its kind on any marine mammal species to date. Gentry shows that the species is driven by very different behavioral traits than have been assumed for it in the past. His book analyzes behavior on scales of hours to lifetimes, investigates the mating system, considers processes that underlie the mating system (site fidelity, behavioral estrus, and the development of territoriality), and addresses specific aspects of maternal strategy (female attendance behavior, pup growth, seasonal influences, and the effects of continental shelf width). Gentry contributes to knowledge about marine mammals by providing a very specific basis for interspecies comparisons, and he suggests a link between population trend and environmental regime shifts. He also guides the debate over seal mating systems from an interpretive to an empirical or experimental basis. Originally published in 1997. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Fur Seals by Roger L. Gentry,Gerald L. Kooyman Pdf
The contributors to this volume have accomplished a breakthrough in our ability to collect data on ocean-dwelling mammals. In the first large-scale comparison of fur seals, they have employed quantitative methods and a special instrument called a Time-Depth-Recorder to study the strategies used by females in six species of cared seals to rear and wean their young in different environments. Originally published in 1986. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Steller Sea Lion and Northern Fur Seal Research: Purpose and need; Alternatives; Affected environment; Environmental consequences; National Environmental Policy Act compliance implementation and recommendations; List of preparers; List of agencies, organizations, and persons whom the draft EIS was sent; References; Index by United States. National Marine Fisheries Service. Office of Protected Resources. Permits Division Pdf
Ralph C. Baker,Ford Wilke,C. Howard Baltzo,United States. Bureau of Commercial Fisheries
Author : Ralph C. Baker,Ford Wilke,C. Howard Baltzo,United States. Bureau of Commercial Fisheries Publisher : Unknown Page : 28 pages File Size : 51,7 Mb Release : 1970 Category : Northern fur seal ISBN : STANFORD:36105123778172
The Northern Fur Seal by Ralph C. Baker,Ford Wilke,C. Howard Baltzo,United States. Bureau of Commercial Fisheries Pdf
Booklet describing early history of fur sealing; the distribution and movement of northern fur seals; Callorhinus Ursinus, their food, physical characteristics, reproduction and mortality and disease, management and research; sealing on the Pribilof Islands and processing and sale of fur seal skins.
Seals and Sea Lions of the World by William Nigel Bonner Pdf
"Seals and Sea Lions of the World covers a fascinating group of mammals whose habitat is aquatic and whose limbs are fully adapted for swimming rather than for land locomotion. The aquatic environment and the remoteness of their habitats make seals, sea lions, and walruses difficult to study. Yet, encounters with these species have produced a great interest in their past, present, and future." -- Cover.
Seals and Sea Lions of the World by Nigel Bonner Pdf
Covers that fascinating group of animals whose evolution into their present forms and lifestyles seems almost contradictory. While seals, sea lions and walruses are mammals, their habitat is an aquatic one, their limbs fully adapted for swimming rather than land locomotion. This book describes and illustrates the various families of the order Pinnipedia -- fur seals, sea lions, walruses and the phocid seals. Evolution, classification, distribution, life-cycles, zoology and their current status and future are all discussed, as well as the question of their relationship with humans. Examines controversial topics such as conflicts between seals and fishing and culling and the fur trade. 100 color photos, detailed diagrams and maps. Comprehensive!
