Author : Meish Goldish
Publisher : Bearport Publishing
Page : 28 pages
File Size : 36,57 MB
Release : 2010-01-01
Category : Juvenile Nonfiction
ISBN : 193608726X
Describes the physical characteristics, habitat, and behavior of this huge marine mammal.
Author : Meish Goldish
Publisher : Bearport Publishing
Page : 28 pages
File Size : 18,73 MB
Release : 2010-01-01
Category : Juvenile Nonfiction
ISBN : 1936088363
Southern elephant seals are sometimes called "sea elephants." Why? An adult male seal has a nose that, when filled with air, looks like an elephant's trunk! These big seals, weighing in at more than 8,000 pounds (3,629 kg), look like elephants in other ways, too. Both are large animals and many of the seals, like elephants, are gray. In Southern Elephant Seal: The Biggest Seal in the World, large color photos and grade-appropriate text will engage young readers as they learn about the natural habitat, physical characteristics, diet, life cycle, and behavior of this super-sized seal. A comparison diagram is also included to show readers the animal in relation to a familiar object.
Author : Gisela Heckel
Publisher : Springer Nature
Page : 236 pages
File Size : 16,26 MB
Release : 2021-03-28
Category : Science
ISBN : 303063177X
Pinnipeds are marine mammals that include eared seals, true seals, and walruses. This book presents detailed reviews on the ecology and conservation of 10 pinniped species along the coasts and islands in Latin America, from Mexico to Chile and Argentina. Topics covered include their population dynamics, trophic ecology, reproduction, and behavior. In addition, the book addresses major conservation issues regarding climate change, interaction with fisheries, ecotourism, and other human activities.
Author : Burney J. Le Beouf
Publisher : Univ of California Press
Page : 434 pages
File Size : 23,8 MB
Release : 2022-07-15
Category : Nature
ISBN : 0520368177
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.
Author : D. Renouf
Publisher : Springer Science & Business Media
Page : 424 pages
File Size : 21,8 MB
Release : 2012-12-06
Category : Science
ISBN : 9401131007
We teach our students of behavioural science that one first defines a research problem, and then the most appropriate animal is selected to investigate hypotheses. The reverse order of events is improper: a particular class of animals should not be studied for its own sake. In the case of the Pinnipeds (seals, sea lions, fur seals and walruses) the organism and the problem are essentially the same. The research questions presented in this volume in one way or another relate to survival in two worlds, the ocean for foraging, and the terrain at its edge or frozen above it for breeding. The evolution of Pinniped behaviour and the mechanisms which underlie it are a consequence of having to cope with two seemingly incompatible sets of environmental constraints. The physiological adaptations for concomitant functioning in two media with very different physical characteristics have produced correlated behav ioural modifications. The energetic demands of reproduction and foraging are idiosyncratic because each activity occurs on opposite sides of the air/water interface. As a result, the mating system must reconcile aquatic design for such functions as locomotion and thermoregulation, with the terrestrial requirements for successful pupping. Similarly, the ecology of this dual habitat prescribes the rules governing the behaviour of the neonate and its interactions with its mother.
Author : Bernard J. Le Boeuf
Publisher : Cambridge University Press
Page : 195 pages
File Size : 45,34 MB
Release : 2021-10-07
Category : Science
ISBN : 1316511545
In-depth documentation of the diving, foraging, and migratory behavior of a superlative marine mammal, based on 50 years of study.
Author : Charles Haskins Townsend
Publisher :
Page : 56 pages
File Size : 33,27 MB
Release : 1912
Category : Albatross Expedition
ISBN :
Author : Nathaniel T. Wheelwright
Publisher : Storey Publishing
Page : 209 pages
File Size : 38,80 MB
Release : 2017-10-17
Category : Nature
ISBN : 1612128890
Become a more attentive observer and deepen your appreciation for the natural world. The unique five-year calendar format of The Naturalist’s Notebook helps you create a long-term record and point of comparison for memorable events, such as the first songbird you hear in spring, your first monarch butterfly sighting of summer, or the appearance of the northern lights. Biologist Nathaniel T. Wheelwright and best-selling author Bernd Heinrich teach nature lovers of all ages what to look for outdoors no matter where you live, using Heinrich’s classic illustrations as inspiration. As you jot down one observation a day, year after year, your collected field notes will serve as a valuable record of your piece of the planet. This deluxe book, with a three-piece case, gilt edges, a burgundy ribbon bookmark, and a belly band with gold foil stamping, is a perfect gift for all nature lovers.
Author : William F. Perrin
Publisher : Academic Press
Page : 1355 pages
File Size : 13,25 MB
Release : 2009-02-26
Category : Science
ISBN : 0080919936
This thorough revision of the classic Encyclopedia of Marine Mammals brings this authoritative book right up-to-date. Articles describe every species in detail, based on the very latest taxonomy, and a host of biological, ecological and sociological aspects relating to marine mammals. The latest information on the biology, ecology, anatomy, behavior and interactions with man is provided by a cast of expert authors – all presented in such detail and clarity to support both marine mammal specialists and the serious naturalist. Fully referenced throughout and with a fresh selection of the best color photographs available, the long-awaited second edition remains at the forefront as the go-to reference on marine mammals. - More than 20% NEW MATERIAL includes articles on Climate Change, Pacific White-sided Dolphins, Sociobiology, Habitat Use, Feeding Morphology and more - Over 260 articles on the individual species with topics ranging from anatomy and behavior, to conservation, exploitation and the impact of global climate change on marine mammals - New color illustrations show every species and document topical articles FROM THE FIRST EDITION "This book is so good...a bargain, full of riches...packed with fascinating up to date information. I recommend it unreservedly it to individuals, students, and researchers, as well as libraries." --Richard M. Laws, MARINE MAMMALS SCIENCE "...establishes a solid and satisfying foundation for current study and future exploration" --Ronald J. Shusterman, SCIENCE
Author : Juan J. Alava
Publisher : CRC Press
Page : 285 pages
File Size : 50,39 MB
Release : 2017-07-12
Category : Nature
ISBN : 1351647636
Pinnipeds are a fascinating group of marine mammals that play a crucial role as apex predators and sentinels of the functioning and health of marine ecosystems. They are found in the most extreme environments from the Polar regions to the tropics. Pinnipeds are comprised of about 34 species, and of those at least 25% live permanently in tropical zones. This book reviews and updates current research on the biology, marine ecology, bio-monitoring, and conservation of tropical pinniped populations, including their behavior, anthropogenic stressors, and health. It also looks at challenges to be faced for the conservation of tropical pinnipeds, many of which are threatened species.
