Tor Por

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Ecological Physiology Of Daily Torpor And Hibernation

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Author : Fritz Geiser
language : en
Publisher: Springer Nature
Release Date : 2021-08-23

Ecological Physiology Of Daily Torpor And Hibernation written by Fritz Geiser and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-08-23 with Science categories.

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.

Torpor

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Author : Chris Kraus
language : en
Publisher: Profile Books
Release Date : 2017-05-04

Torpor written by Chris Kraus and has been published by Profile Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-04 with Fiction categories.

The latest novel from the author of cult super-hit I LOVE DICK It's Summer, 1991, the dawning of the New World Order; a post-MTV, pre-AOL generation. Jerome Shafir and Sylvie Green, two former New Yorkers who can no longer afford an East Village apartment, set off on a journey across the entire former Soviet Bloc with the intention of adopting a Romanian orphan. Unflinchingly dark, hilarious and moving, Torpor is at once a satire and philosophy of cultural history, social identity and failing relationships. Dipping into the trajectory of a life at different moments, Kraus interrogates convention and emotion, creating characters that are flawed, witty, and altogether true to life. Part prequel, part sequel, Torpor continues a project of life-writing: personal, unsparing, and triumphant. If I Love Dick is the book of your 20s, Torpor is the book of your 30s.

Torpor And Hibernation Metabolic And Physiological Paradigms

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Author : Sylvain Giroud
language : en
Publisher: Frontiers Media SA
Release Date : 2024-06-21

Torpor And Hibernation Metabolic And Physiological Paradigms written by Sylvain Giroud and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-06-21 with Science categories.

Torpor or heterothermy corresponds to a state of depressed metabolism and is associated with specific metabolic, cellular and molecular adaptations that often occur on a seasonal basis. Yet the exact mechanisms and functioning of these changes are poorly understood. Interestingly, the potential of such extraordinary animal adaptation for human and animal health as well as other biomedical considerations has raised particular attention especially in the last decade. The strong metabolic and physiological adaptations of heterotherms can be of particular inspiration for current biomedical and pathological situations (e.g., obesity and related diseases, cardiovascular and metabolic dysfunctions, ischemia-reperfusion injuries, immune depression) and for the health and longevity of animal species, including humans.

Hibernation And Torpor In Mammals And Birds

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Author : Charles P Lyman
language : en
Publisher: Elsevier
Release Date : 2013-07-10

Hibernation And Torpor In Mammals And Birds written by Charles P Lyman and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-07-10 with Nature categories.

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.

Animals At The Extremes Hibernation And Torpor

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Author : The Open University
language : en
Publisher: The Open University
Release Date :

Animals At The Extremes Hibernation And Torpor written by The Open University and has been published by The Open University this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.

This 14-hour free course examined the differences between animal hibernation and torpor, such as the triggers for each condition and their physiology.

Universal Dictionary Of The English Language Rhe Z

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Author : Robert Hunter
language : en
Publisher:
Release Date : 1897

Universal Dictionary Of The English Language Rhe Z written by Robert Hunter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1897 with Encyclopedias and dictionaries categories.

Manual Of English Pronunciation And Spelling

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Author : Richard Soule
language : en
Publisher:
Release Date : 1891

Manual Of English Pronunciation And Spelling written by Richard Soule and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1891 with English language categories.

Lloyd S Encyclop Dic Dictionary

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Author : Robert Hunter
language : en
Publisher:
Release Date : 1895

Lloyd S Encyclop Dic Dictionary written by Robert Hunter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1895 with categories.

Etymological And Pronouncing Dictionary Of The English Language The Pronunciation Revised By P H Phelp

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Author : James Stormonth
language : en
Publisher:
Release Date : 1874

Etymological And Pronouncing Dictionary Of The English Language The Pronunciation Revised By P H Phelp written by James Stormonth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1874 with categories.

Etymological And Pronouncing Dictionary Of The English Language Including A Very Copious Selection Of Scientific Terms

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Author : Stormonth
language : en
Publisher:
Release Date : 1884

Etymological And Pronouncing Dictionary Of The English Language Including A Very Copious Selection Of Scientific Terms written by Stormonth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1884 with categories.