The Northern Elephant Seal
Author : Charles Haskins Townsend
Publisher :
Page : 56 pages
File Size : 16,87 MB
Release : 1912
Category : Albatross Expedition
ISBN :
Author : Charles Haskins Townsend
Publisher :
Page : 56 pages
File Size : 16,87 MB
Release : 1912
Category : Albatross Expedition
ISBN :
Author : Bernard J. Le Boeuf
Publisher : Cambridge University Press
Page : 195 pages
File Size : 19,14 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 : Burney J. Le Beouf
Publisher : Univ of California Press
Page : 434 pages
File Size : 23,90 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 : Gisela Heckel
Publisher : Springer Nature
Page : 236 pages
File Size : 50,17 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 : Nathaniel T. Wheelwright
Publisher : Storey Publishing
Page : 209 pages
File Size : 23,43 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 : D. Renouf
Publisher : Springer Science & Business Media
Page : 424 pages
File Size : 50,47 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 : Joseph R. Geraci
Publisher : National Aquarium in Baltimore
Page : 386 pages
File Size : 47,77 MB
Release : 2005
Category : Marine mammals
ISBN : 0977460908
Comprehensive manual for understanding and carrying out marine mammal rescue activities for stranded seals, manatees, dolphins, whales, or sea otters.
Author : Mark Carwardine
Publisher : Sterling Publishing Company, Inc.
Page : 260 pages
File Size : 20,93 MB
Release : 2008
Category : Juvenile Nonfiction
ISBN : 9781402756238
This guide features incredible facts about creatures from each of the main animal groups, including mammals, reptiles, birds, amphibians, fish, and insects.
Author : Jean-Michel Mazin
Publisher :
Page : 376 pages
File Size : 37,60 MB
Release : 2001
Category : Adaptation (Biology)
ISBN :
Author : Buddy Davis
Publisher : New Leaf Publishing Group
Page : 88 pages
File Size : 36,80 MB
Release : 2006
Category : Education
ISBN : 9780890514580
Ages 9 to 12 years. A must-have for any home or school library, this fascinating book highlights 30 of the most fascinating creatures in the sea. The beautiful full-colour photographs and interesting descriptions highlighting the design features of each creature make this book a must read.