Hibernation and Torpor in Mammals and Birds

Hibernation and Torpor in Mammals and Birds PDF Author: Charles P Lyman
Publisher: Elsevier
ISBN: 0323138241
Category : Nature
Languages : en
Pages : 332

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Book Description
Hibernation and Torpor in Mammals and Birds explores the physiological factors that control hibernation and torpor in birds and mammals. This text covers topics ranging from metabolism in hibernation to the role of endocrines, respiration and acid-base state in hibernation, and theories of hibernation. This book is comprised of 14 chapters and begins with an overview of some clear-cut definitions and why mammals and birds hibernate. The reader is then introduced to the variations from euthermia that have been observed among birds and mammals. To give some structure to this listing, the approach is phylogenetic, starting with the birds and proceeding through the primitive to the more advanced mammals. Subsequent chapters explains the process of entering hibernation and the hibernating state, itself; capability of a species in natural hibernation to arouse from that state using self-generated heat; physiological changes at the start of a spontaneous arousal; and physiological mechanisms underlying the ability of hibernators to rewarm. Consideration is also given to intermediary metabolism in hibernation, cold adaptation of metabolism in hibernators, and the response of hibernators to various extrinsic influences such as neoplastic growth, radiation injury, and parasitism and symbionts. This book will be of interest to students and researchers in fields ranging from zoology to physiology and biophysics.

Hibernation and Torpor in Mammals and Birds

Hibernation and Torpor in Mammals and Birds PDF Author: Charles P Lyman
Publisher: Elsevier
ISBN: 0323138241
Category : Nature
Languages : en
Pages : 332

Get Book Here

Book Description
Hibernation and Torpor in Mammals and Birds explores the physiological factors that control hibernation and torpor in birds and mammals. This text covers topics ranging from metabolism in hibernation to the role of endocrines, respiration and acid-base state in hibernation, and theories of hibernation. This book is comprised of 14 chapters and begins with an overview of some clear-cut definitions and why mammals and birds hibernate. The reader is then introduced to the variations from euthermia that have been observed among birds and mammals. To give some structure to this listing, the approach is phylogenetic, starting with the birds and proceeding through the primitive to the more advanced mammals. Subsequent chapters explains the process of entering hibernation and the hibernating state, itself; capability of a species in natural hibernation to arouse from that state using self-generated heat; physiological changes at the start of a spontaneous arousal; and physiological mechanisms underlying the ability of hibernators to rewarm. Consideration is also given to intermediary metabolism in hibernation, cold adaptation of metabolism in hibernators, and the response of hibernators to various extrinsic influences such as neoplastic growth, radiation injury, and parasitism and symbionts. This book will be of interest to students and researchers in fields ranging from zoology to physiology and biophysics.

Exotic Animal Laboratory Diagnosis

Exotic Animal Laboratory Diagnosis PDF Author: J. Jill Heatley
Publisher: John Wiley & Sons
ISBN: 0470960353
Category : Medical
Languages : en
Pages : 659

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Book Description
Exotic Animal Laboratory Diagnosis is a practical, user-friendly guide to diagnostic testing in a wide range of exotic species. Offers complete information on obtaining samples, performing tests, and interpreting laboratory results in exotic animals Presents information on each species using a similar format for easy access Emphasizes details on clinical biochemistries, urinalysis, and common laboratory diagnostic tests not found in other resources Draws together information on selecting, performing, and using diagnostic tests into a single easy-to-use resource Covers a wide range of species, including small mammals, primates, reptiles, aquatic animals, and wild, laboratory, and pet birds

Animal Life of the British Isles

Animal Life of the British Isles PDF Author: Edward Step
Publisher:
ISBN:
Category : Zoology
Languages : en
Pages : 314

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Book Description


Ecological Physiology of Daily Torpor and Hibernation

Ecological Physiology of Daily Torpor and Hibernation PDF Author: Fritz Geiser
Publisher: Springer Nature
ISBN: 3030755258
Category : Science
Languages : en
Pages : 326

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Book Description
This book provides an in-depth overview on the functional ecology of daily torpor and hibernation in endothermic mammals and birds. The reader is well introduced to the physiology and thermal energetics of endothermy and underlying different types of torpor. Furthermore, evolution of endothermy as well as reproduction and survival strategies of heterothermic animals in a changing environment are discussed. Endothermic mammals and birds can use internal heat production fueled by ingested food to maintain a high body temperature. As food in the wild is not always available, many birds and mammals periodically abandon energetically costly homeothermic thermoregulation and enter an energy-conserving state of torpor, which is the topic of this book. Daily torpor and hibernation (multiday torpor) in these heterothermic endotherms are the most effective means for energy conservation available to endotherms and are characterized by pronounced temporal and controlled reductions in body temperature, energy expenditure, water loss, and other physiological functions. Hibernators express multiday torpor predominately throughout winter, which substantially enhances winter survival. In contrast, daily heterotherms use daily torpor lasting for several hours usually during the rest phase, some throughout the year. Although torpor is still widely considered to be a specific adaptation of a few cold-climate species, it is used by many animals from all climate zones, including the tropics, and is highly diverse with about 25-50% of all mammals, but fewer birds, estimated to use it. While energy conservation during adverse conditions is an important function of torpor, it is also employed to permit or facilitate energy-demanding processes such as reproduction and growth, especially when food supply is limited. Even migrating birds enter torpor to conserve energy for the next stage of migration, whereas bats may use it to deal with heat. Even though many heterothermic species will be challenged by anthropogenic influences such as habitat destruction, introduced species, novel pathogens and specifically global warming, not all are likely to be affected in the same way. In fact it appears that opportunistic heterotherms because of their highly flexible energy requirements, ability to limit foraging and reduce the risk of predation, and often pronounced longevity, may be better equipped to deal with anthropogenic challenges than homeotherms. In contrast strongly seasonal hibernators, especially those restricted to mountain tops, and those that have to deal with new diseases that are difficult to combat at low body temperatures, are likely to be adversely affected. This book addresses researchers and advanced students in Zoology, Ecology and Veterinary Sciences.

Hibernation and the Hypothalamus

Hibernation and the Hypothalamus PDF Author: Nicholas Mrosovsky
Publisher: Springer Science & Business Media
ISBN: 1468471767
Category : Science
Languages : en
Pages : 296

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Book Description
Mammalian hibernation is commonly thought of as something completely out of the ordinary, a "unique and unorthodox state." The present book takes the opposite view. It argues that the physiological achievements of hibernators do not deEend on special mechanisms but on special use of ordinary mechanisms. It is precisely this that makes the hibernators important. If the hibernators de pend on some unique physiological principle their study is that of a biological curio. But if they are using basic mammalian systems in a quantitatively extreme way, then they are a naturally occurring preparation of enormous potential. Hibernation involves every aspect of the animal's biology from fat metabo lism to behavior, from thermoregulation to dental caries; every system in the body is affected in some way or other by hibernation. A comprehensive account of hibernation would be almost coextensive with an account of the whole of mammalian biology. The present book does not attempt to describe everything that has been discovered about hibernation. Excellent coverage for that already exists in the proceedings of three recent symposia and in the other major source materials listed on page 233. There is in fact an enormous amount of information already available. But there is a difference between information and understanding. Despite the increasing volume of research and growing interest in mammalian hibernation, there is little appreciation of the essential characteristics of the phenomena. The pieces of the puzzle lie scattered.

A Review of the Population and Conservation Status of British Mammals

A Review of the Population and Conservation Status of British Mammals PDF Author:
Publisher:
ISBN: 9781783544851
Category :
Languages : en
Pages :

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Book Description


Physiological Adaptations in Vertebrates

Physiological Adaptations in Vertebrates PDF Author: Alan Hargens
Publisher: CRC Press
ISBN: 9780824785581
Category : Nature
Languages : en
Pages : 458

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Book Description
This volume originates from a symposium held in Copenhagen in June 1989 to commemorate Kjell Johansen, who died March 4, 1987. The volume begins with a nonscientific but fascinating glimpse at Kjell, followed by an overview of the kinds of physiology that interested him, i.e. adaptational, environme

Adaptations to Terrestrial Environments

Adaptations to Terrestrial Environments PDF Author: N. S. Margaris
Publisher: Springer Science & Business Media
ISBN: 1461583454
Category : Science
Languages : en
Pages : 242

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Book Description
The present volume contains selected papers of the International Symposium on Adaptations to Terrestrial Environment, held in Halki diki, Greece from Sept 26th to Oct 2nd, 1982. The meeting was designed to consider the means as weIl as the mechanisms whereby organisms adapt to their environment. The papers presented dealt with a large variety of species from insects up to and including mamrnals. What became apparent during the course of the meeting was the incredible variety of means that organisms use to survive in their particular environmental niche. The ploys utilized are almost as numerous as the number of species investi gated. This will become clearly apparent in the accompanying manu scripts which are published in this book. The Editors allowed the authors of the accepted papers great leeway in terms of the thorough ness of their contributions. Some of the presentations contain exclusively new findings, whereas others extensively review the existing literature. The Volume is divided into two parts: Invertebrates and Verte brates. The first provides information on adaptations of inverte brat es on environmental stresses (such as low er high temperatures and water deficits) from the physiological and/or biochemical points of view as weIl as behavioral responses resulting from their life strategies and interactions with other organisrns. In the second part papers selected deal with vertebrates. Adaptations to special environmental factors such as light and temperature are discussed as weIl as behavioral, physiological and biochemical solutions to problems imposed.

Mammals of the British Isles

Mammals of the British Isles PDF Author: Stephen Harris
Publisher:
ISBN: 9780906282656
Category : Mammals
Languages : en
Pages : 799

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Book Description


Thermal Physiology

Thermal Physiology PDF Author: Clark M. Blatteis
Publisher: Springer Nature
ISBN: 1071623621
Category : Medical
Languages : en
Pages : 681

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Book Description
This edited volume records the critical historical developments in thermal physiology and makes them accessible to new and senior thermal biologists and scientists in related fields. Readers will discover how the discipline developed all over the world. Contributions from 14 different countries recollect all prominent discoveries, starting in the 18th century. Like other volumes of the Perspectives in Physiology series, this book reveals the people behind these discoveries. The authors also set the scenes in which the research was conducted in their countries. From geopolitical frameworks to new technologies and extraordinary personalities - this volume shows that scientific progress is influenced by many, often unforeseeable, factors. The history of thermal physiology not only is a story about individual outstanding scientists, but a testament for open collaboration and international comradery.