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A Quantitative Analysis Of Northern Elephant Seal Migration Patterns
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Book Synopsis A Quantitative Analysis of Northern Elephant Seal Migration Patterns by : Karen Elizabeth Morris
Download or read book A Quantitative Analysis of Northern Elephant Seal Migration Patterns written by Karen Elizabeth Morris and published by . This book was released on 1997 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Review of the Population Ecology of the Northern Elephant Seal (Mirounga Angustirostris) by : Peter John Patrick Gogan
Download or read book A Review of the Population Ecology of the Northern Elephant Seal (Mirounga Angustirostris) written by Peter John Patrick Gogan and published by . This book was released on 1977 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Elephant Seals by : Burney J. Le Beouf
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.
Book Synopsis Northern Elephant Seal Monitoring (Mirounga Angustirostris) at Point Reyes National Seashore 2008-2009 Breeding Seasons by : Sarah Allen
Download or read book Northern Elephant Seal Monitoring (Mirounga Angustirostris) at Point Reyes National Seashore 2008-2009 Breeding Seasons written by Sarah Allen and published by CreateSpace. This book was released on 2013-08-06 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Northern elephant seals (Mirounga angustirostris) established a breeding population at Point Reyes National Seashore (PORE) in 1981 and since then the colony has grown steadily (Allen et al. 1989). Currently, elephant seals breed at numerous sites within PORE, with four primary sites located at Drake's Beach (DB), Point Reyes Headland (PRH), South Beach (SB), and Chimney Rock Loop (CRL). PORE began to monitor the elephant seal population to contribute to the understanding of population changes and management needs, and to develop research, interpretation and enforcement strategies. A pinniped monitoring protocol was developed in 2009 and includes objectives for monitoring elephant seals to determine trends population growth and productivity.
Book Synopsis The Homing and Diving of Translocated Juvenile Northern Elephant Seals, Mirounga Angustirostris Gill, 1866 by : Guy Williamson Oliver
Download or read book The Homing and Diving of Translocated Juvenile Northern Elephant Seals, Mirounga Angustirostris Gill, 1866 written by Guy Williamson Oliver and published by . This book was released on 1997 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fatty Acid Signatures as Indicators of Foraging Ecology of Northern Elephant Seals (Mirounga Angustirostris) by : Jill Doneen Pettinger
Download or read book Fatty Acid Signatures as Indicators of Foraging Ecology of Northern Elephant Seals (Mirounga Angustirostris) written by Jill Doneen Pettinger and published by . This book was released on 2000 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Northern Elephant Seal by : Charles Haskins Townsend
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:
Book Synopsis Elephant Seals by : Bernard J. Le Boeuf
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: How did the elephant seal survive being driven to the brink of extinction in the nineteenth century? What variables determine the lifetime reproductive success of individual seals? How have elephant seals adapted to tolerate remarkable physiological extremes of nutrition, temperature, asphyxia, and pressure? Answering these questions and many more, this book is the result of the author's 50-year study of elephant seals. The chapters cover a broad range of topics including diving, feeding, migration and reproductive behavior, yielding fundamental information on general biological principles, the operation of natural selection, the evolution of social behavior, the formation of vocal dialects, colony development, and population changes over time. The book will be a valuable resource for graduate students and researchers of marine mammal behavior and reproductive life history as well as for amateur naturalists interested in these fascinating animals.
Book Synopsis Movements of the Northern Elephant Seal by : Judith Louise Parrish
Download or read book Movements of the Northern Elephant Seal written by Judith Louise Parrish and published by . This book was released on 1976 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pattern and depth of dives in northern elephant seals, Mirounga angustirostris by : B.J. LE BOEUF
Download or read book Pattern and depth of dives in northern elephant seals, Mirounga angustirostris written by B.J. LE BOEUF and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Ecology and Population Biology of the Northern Elephant Seal, Mirounga Angustirostris Gill 1866, on the Southern California Channel Islands by : Brent Scott Stewart
Download or read book The Ecology and Population Biology of the Northern Elephant Seal, Mirounga Angustirostris Gill 1866, on the Southern California Channel Islands written by Brent Scott Stewart and published by . This book was released on 1989 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Exploiting Pelagic Habitat by : Patrick William Robinson
Download or read book Exploiting Pelagic Habitat written by Patrick William Robinson and published by . This book was released on 2009 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies on the Biology and Behavior of Northern Elephant Seals by : Marianne Louise Riedman
Download or read book Studies on the Biology and Behavior of Northern Elephant Seals written by Marianne Louise Riedman and published by . This book was released on 1981 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Double migrations of the northern elephant seal, Mirounga angustirostris by : B.S. STEWART
Download or read book Double migrations of the northern elephant seal, Mirounga angustirostris written by B.S. STEWART and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Northern Elephant Seal by : Charles Haskins Townsend
Download or read book The Northern Elephant Seal written by Charles Haskins Townsend and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Federal Register written by and published by . This book was released on 2012-02 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Foraging Ecology, Diving Behavior, and Migration Patterns of Harbor Seals (Phoca Vitulina Richardii) from a Glacial Fjord in Alaska in Relation to Prey Availability and Oceanographic Features by : Jamie Neil Womble
Download or read book Foraging Ecology, Diving Behavior, and Migration Patterns of Harbor Seals (Phoca Vitulina Richardii) from a Glacial Fjord in Alaska in Relation to Prey Availability and Oceanographic Features written by Jamie Neil Womble and published by . This book was released on 2012 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the movement behavior and foraging strategies of individuals across multiple spatial and temporal scales is essential not only for understanding the biological requirements of individuals but also for linking individual strategies to population level effects. Glacial fjords scattered throughout south-central and southeastern Alaska host some of the largest seasonal aggregations of harbor seals (Phoca vitulina richardii) in the world, and an estimated 15% of the harbor seal population in Alaska is found seasonally at these glacial ice sites. Over the last two decades, the number of harbor seals has declined at two of the primary glacial fjords, in Aialik Bay in south-central Alaska and in Glacier Bay in southeastern Alaska, thus raising concerns regarding the viability of seal populations in glacial fjord environments. From 2004-2009, the foraging ecology, diving behavior, and migration patterns of harbor seals from Glacier Bay National Park, Alaska were examined in relation to prey availability and oceanographic features in Glacier Bay and the surrounding regions of southeastern Alaska. Time-depth recorders, very high frequency transmitters, and satellite-linked transmitters were used to quantify the vertical and horizontal movement patterns of harbor seals in the marine environment. Specifically, (1) I characterized the diving behavior, foraging areas, and foraging strategies of female harbor seals from terrestrial and glacial ice sites relative to prey availability during the breeding season (May-June) in Glacier Bay, (2) I quantified the intra-population variation in at-sea post-breeding season (September-April) distribution and movement patterns of female harbor seals in relation to oceanographic features, (3) I quantified the post-breeding season migration patterns of female harbor seals relative to the boundaries of the marine protected area of Glacier Bay National Park, and (4) I characterized the use of the continental shelf region of the eastern Gulf of Alaska by female harbor seals from Glacier Bay, both as a foraging area and as a migratory corridor in relation to oceanographic features. During the breeding season, there was a substantial degree of intra-population variation in the diving behavior and foraging areas of juvenile and adult female seals from glacial ice and terrestrial sites in Glacier Bay. The presence of multiple diving strategies suggests that differences in the relative density and depth of prey fields in glacial ice and terrestrial habitats in addition to seal age and reproductive status may influence diving and foraging behavior of harbor seals. During the post-breeding season, juvenile and adult female harbor seals ranged extensively beyond the boundaries of the marine protected area of Glacier Bay National Park, throughout the northern inshore waters of southeastern Alaska and the continental shelf region of the eastern Gulf of Alaska between Cross Sound and Prince William Sound, Alaska (up to 900 kilometers away). Seals exhibited a relatively high degree of intra-population variation in their at-sea post-breeding season distribution patterns that may be a function of extrinsic factors such as oceanographic characteristics, which can influence prey availability as well as intrinsic factors including previous experience with foraging areas and seal condition and age. Use of the continental shelf region of the eastern Gulf of Alaska by harbor seals as a foraging area may be due to enhanced biological productivity which may be associated with ephemeral hydrographic and/or static bathymetric features. Despite extensive migrations of seals from Glacier Bay during the post-breeding season, there was a high degree of inter-annual site fidelity of seals to Glacier Bay the following breeding season after seals were captured.