Fasting And Lactation In Female Northern Elephant Seals Mirounga Angustirostris

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Elephant Seals

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Author : Burney J. Le Boeuf
language : en
Publisher: Univ of California Press
Release Date : 1994-01-01

Elephant Seals written by Burney J. Le Boeuf and has been published by Univ of California Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-01-01 with Science categories.

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. 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.

Fasting And Lactation In Female Northern Elephant Seals Mirounga Angustirostris

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Author : Jeannine Denise Williams
language : en
Publisher:
Release Date : 1995

Fasting And Lactation In Female Northern Elephant Seals Mirounga Angustirostris written by Jeannine Denise Williams and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Diet categories.

Reproductive Effort And Fasting Physiology Of Female Northern Elephant Seals Mirounga Angustirostris

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Author : Daniel Edward Crocker
language : en
Publisher:
Release Date : 1995

Reproductive Effort And Fasting Physiology Of Female Northern Elephant Seals Mirounga Angustirostris written by Daniel Edward Crocker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Northern elephant seal categories.

Comparative Physiology Of Fasting Starvation And Food Limitation

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Author : Marshall D. McCue
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-05-17

Comparative Physiology Of Fasting Starvation And Food Limitation written by Marshall D. McCue and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-05-17 with Science categories.

All animals face the possibility of food limitation and ultimately starvation-induced mortality. This book summarizes state of the art of starvation biology from the ecological causes of food limitation to the physiological and evolutionary consequences of prolonged fasting. It is written for an audience with an understanding of general principles in animal physiology, yet offers a level of analysis and interpretation that will engage seasoned scientists. Each chapter is written by active researchers in the field of comparative physiology and draws on the primary literature of starvation both in nature and the laboratory. The chapters are organized among broad taxonomic categories, such as protists, arthropods, fishes, reptiles, birds, and flying, aquatic, and terrestrial mammals including humans; particularly well-studied animal models, e.g. endotherms are further organized by experimental approaches, such as analyses of blood metabolites, stable isotopes, thermobiology, and modeling of body composition.

Encyclopedia Of Marine Mammals

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Author : William F. Perrin
language : en
Publisher: Academic Press
Release Date : 2009-02-26

Encyclopedia Of Marine Mammals written by William F. Perrin and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-02-26 with Science categories.

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

Physiology Of Marine Mammals

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Author : Michael Castellini
language : en
Publisher: CRC Press
Release Date : 2023-07-05

Physiology Of Marine Mammals written by Michael Castellini and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-07-05 with Science categories.

Suppose you were designing a marine mammal. What would they need to live in the ocean? How would you keep them warm? What design features would allow them to dive for very long periods to extreme depths? Do they need water to drink? How would they minimize the cost of swimming, and how would they find their prey in the deep and dark? These questions and more are examined in detail throughout Marine Mammal Physiology, which explores how marine mammals live in the sea from a physiological point of view. This undergraduate textbook considers the essential aspects of what makes a marine mammal different from terrestrial mammals, beyond just their environment. It focuses on the physiological and biochemical traits that have allowed this group of mammals to effectively exploit the marine environment that is so hostile to humans. The content of this book is organised around common student questions, taking the undergraduate's point of view as the starting point. Each chapter provides a set of PowerPoint slides for instructors to use in teaching and students to use as study guides. New "Study Questions" and "Critical Thinking Points" conclude each chapter, which are each motivated by a "Driving Question" such as "How do mammals stay warm in a cold ocean?" or "How do mammals survive the crushing pressures of the deep sea?" Full-colour images and comprehensive, accessible content make this the definitive textbook for marine mammal physiology.

Marine Mammal Physiology

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Author : Michael A. Castellini
language : en
Publisher: CRC Press
Release Date : 2015-11-18

Marine Mammal Physiology written by Michael A. Castellini and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-11-18 with Medical categories.

Suppose you were designing a marine mammal. What would you need to think about to allow it to live in the ocean? How would you keep it warm? What would you design to allow it to dive for very long periods to extreme depths? Where would it find water to drink? How would you minimize the cost of swimming, and how would it find its prey in the deep an

Encyclopedia Of Marine Mammals

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Author : Bernd Würsig
language : en
Publisher: Academic Press
Release Date : 2017-11-27

Encyclopedia Of Marine Mammals written by Bernd Würsig and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-27 with Science categories.

The Encyclopedia of Marine Mammals, Third Edition covers the ecology, behavior, conservation, evolution, form and function of whales, dolphins, seals, sea lions, manatees, dugongs, otters and polar bears. This edition provides new content on anthropogenic concerns, latest information on emerging threats such as ocean noise, and impacts of climate change. With authors and editors who are world experts, this new edition is a critical resource for all who are interested in marine mammals, especially upper level undergraduate and graduate students, researchers, and managers, and is a top reference for those in related fields, from oceanographers to environmental scientists. Significant content and topic updates, as well as the addition of new topics in such areas as anthropogenic disturbance Visual maps of the oceans and seas mentioned in contributions, helping to place the geographical features described in the text with clear, consistent species illustrations Written to help users learn new information or brush up on a topic quickly, with the references at the end of each entry to help guide readers into more specialist literature

Infanticide And Parental Care

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Author : Stefano Parmigiani
language : en
Publisher: Routledge
Release Date : 2016-12-05

Infanticide And Parental Care written by Stefano Parmigiani and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-05 with Medical categories.

First published in 1994. Infanticide is an extremely complex behavioral pattern that occurs throughout the animal kingdom and it must be considered not only in isolation but also from the viewpoint of an animal's care of its young. Infanticide and Parental Care will be of interest to zoologists, evolutionary biologists and biological anthropologists. The concept of infanticide is considered in different mammals such as humans, primates, pinnipeds, lions, dwarf mongooses and prairie dogs and in non-mammals including insects and birds. Infanticide and Parental Care also views the topic in different environmental conditions such as the natural habitat of an animal and animals kept in laboratory conditions. The wide implications of infanticide mean that this book will also be useful to historians, anthropologists, sociologists and psychologists.

Maternal Effects In Mammals

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Author : Dario Maestripieri
language : en
Publisher: University of Chicago Press
Release Date : 2009-08-01

Maternal Effects In Mammals written by Dario Maestripieri and has been published by University of Chicago Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-08-01 with Science categories.

Evolutionary maternal effects occur whenever a mother’s phenotypic traits directly affect her offspring’s phenotype, independent of the offspring’s genotype. Some of the phenotypic traits that result in maternal effects have a genetic basis, whereas others are environmentally determined. For example, the size of a litter produced by a mammalian mother—a trait with a strong genetic basis—can affect the growth rate of her offspring, while a mother’s dominance rank—an environmentally determined trait—can affect the dominance rank of her offspring. The first volume published on the subject in more than a decade, Maternal Effects in Mammals reflects advances in genomic, ecological, and behavioral research, as well new understandings of the evolutionary interplay between mothers and their offspring. Dario Maestripieri and Jill M. Mateo bring together a learned group of contributors to synthesize the vast literature on a range of species, highlight evolutionary processes that were previously overlooked, and propose new avenues of research. Maternal Effects in Mammals will serve as the most comprehensive compendium on and stimulus for interdisciplinary treatments of mammalian maternal effects.