Water Conservation in Fasting Northern Elephant Seals (Mirounga Angustirostris) PDF Download
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Author: Christopher William Lester
Publisher:
ISBN:
Category :
Languages : en
Pages : 182
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Author: Christopher William Lester
Publisher:
ISBN:
Category :
Languages : en
Pages : 182
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Author: D. Renouf
Publisher: Springer Science & Business Media
ISBN: 9401131007
Category : Science
Languages : en
Pages : 424
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Book Description
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: David H. Evans
Publisher: CRC Press
ISBN: 0849380529
Category : Medical
Languages : en
Pages : 615
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Book Description
In the 40 years since the classic review of osmotic and ionic regulation written by Potts and Parry, there has been astonishing growth in scientific productivity, a marked shift in the direction and taxonomic distribution of research, and amazing changes in the technology of scientific research" It is indicative of the growth of the subject that as
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 122
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Author: Jeannine Denise Williams
Publisher:
ISBN:
Category : Diet
Languages : en
Pages : 252
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Author: United States. National Marine Fisheries Service. Office of Protected Resources. Permits Division
Publisher:
ISBN:
Category : Northern fur seal
Languages : en
Pages : 1128
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Author: Susanna Birgitta Blackwell
Publisher:
ISBN:
Category : Apnea
Languages : en
Pages : 296
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Author: Sean Harrison Adams
Publisher:
ISBN:
Category : Northern elephant seal
Languages : en
Pages : 190
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Author: Gisela Heckel
Publisher: Springer Nature
ISBN: 303063177X
Category : Science
Languages : en
Pages : 236
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Book Description
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: Daniel Edward Crocker
Publisher:
ISBN:
Category : Northern elephant seal
Languages : en
Pages : 342
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Book Description
