Sleep Daily Torpor And Hibernation
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Author |
: James Michael Walker |
Publisher |
: |
Total Pages |
: 242 |
Release |
: 1978 |
ISBN-10 |
: UCSC:32106002585054 |
ISBN-13 |
: |
Rating |
: 4/5 (54 Downloads) |
Synopsis Sleep, Daily Torpor and Hibernation by : James Michael Walker
Author |
: Fritz Geiser |
Publisher |
: Springer Nature |
Total Pages |
: 326 |
Release |
: 2021-08-23 |
ISBN-10 |
: 9783030755256 |
ISBN-13 |
: 3030755258 |
Rating |
: 4/5 (56 Downloads) |
Synopsis Ecological Physiology of Daily Torpor and Hibernation by : Fritz Geiser
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.
Author |
: Charles P Lyman |
Publisher |
: Elsevier |
Total Pages |
: 332 |
Release |
: 2013-07-10 |
ISBN-10 |
: 9780323138246 |
ISBN-13 |
: 0323138241 |
Rating |
: 4/5 (46 Downloads) |
Synopsis Hibernation and Torpor in Mammals and Birds by : Charles P Lyman
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.
Author |
: F. GEISER |
Publisher |
: |
Total Pages |
: |
Release |
: 1998 |
ISBN-10 |
: OCLC:770424432 |
ISBN-13 |
: |
Rating |
: 4/5 (32 Downloads) |
Synopsis Evolution of daily torpor and hibernation in birds and mammals by : F. GEISER
Author |
: Sylvain Giroud |
Publisher |
: Frontiers Media SA |
Total Pages |
: 138 |
Release |
: 2024-06-21 |
ISBN-10 |
: 9782832550625 |
ISBN-13 |
: 2832550622 |
Rating |
: 4/5 (25 Downloads) |
Synopsis Torpor and Hibernation: Metabolic and Physiological Paradigms by : Sylvain Giroud
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.
Author |
: Gerhard Heldmaier |
Publisher |
: Springer Science & Business Media |
Total Pages |
: 568 |
Release |
: 2000-08-07 |
ISBN-10 |
: 3540674101 |
ISBN-13 |
: 9783540674108 |
Rating |
: 4/5 (01 Downloads) |
Synopsis Life in the Cold by : Gerhard Heldmaier
This book gives an up-to-date account of the current knowledge of cold adaptation in animals, including phenomena like hibernation, daily torpor, thermoregulation and thermogenesis, metabolic regulation, freeze tolerance, anaerobiosis, metabolic depression and related processes. For the next four years - until the 12th International Hibernation Symposium - it will serve as a state-of-the-art reference source for every scientist and graduate student working in these areas of physiology and zoology.
Author |
: Thomas Ruf |
Publisher |
: Springer Science & Business Media |
Total Pages |
: 549 |
Release |
: 2012-04-23 |
ISBN-10 |
: 9783642286780 |
ISBN-13 |
: 364228678X |
Rating |
: 4/5 (80 Downloads) |
Synopsis Living in a Seasonal World by : Thomas Ruf
This book summarises the newest information on seasonal adaptation in animals. Topics include animal hibernation, daily torpor, thermoregulation, heat production, metabolic depression, biochemical adaptations, neurophysiology and energy balance. The contributors to this book present interdisciplinary research at multiple levels ranging from the molecular to the ecophysiological, as well as evolutionary approaches. The chapters of this book provide original data not published elsewhere, which makes it the most up-to-date, comprehensive source of information on these fields. The book’s subchapters correspond to presentations given at the 14th International Hibernation Symposium in August 2012 in Austria. This is a very successful series of symposia (held every four years since 1959) that attracts leading researchers in the field. Like the past symposia, this meeting – and consequently the book – is aimed not only at hibernation but at covering the full range of animal adaptations to seasonal environments. For the next four years, this book will serve as the cutting-edge reference work for graduate students and scientists active in this field of physiology and ecology. .
Author |
: Gerhard Heldmaier |
Publisher |
: Springer Science & Business Media |
Total Pages |
: 534 |
Release |
: 2013-06-29 |
ISBN-10 |
: 9783662041628 |
ISBN-13 |
: 3662041626 |
Rating |
: 4/5 (28 Downloads) |
Synopsis Life in the Cold by : Gerhard Heldmaier
This book contains the proceedings of the 11 'h international symposium dedicated to the understanding of animal "Life in the Cold", held at Jungholz (Austria), August 13-18, 2000. In 55 chapters contributed by researchers from 16 countries the current state of knowledge is reviewed, and the most recent developments and discussions in this field are highlighted. The first symposium on hibernation and life in the cold was held in 1959, and from then on they continued to occur every 3-5 years. The regular occurrence of these meetings became almost a tradition. A tradition which is entirely based on the enthusiasm of participants, and was nourished by scientific progress in this area during the past decades. The first symposium in 1959 was organised by Charles P. Lyman and Albert R. Dawe and was almost entirely dedicated to hibernation and torpor. This has been a backbone topic of the following symposia, although other aspects of animal energetics, thermal physiology and biochemistry were included in later meetings.
Author |
: Peter Meerlo |
Publisher |
: Springer |
Total Pages |
: 561 |
Release |
: 2015-05-18 |
ISBN-10 |
: 9783662468784 |
ISBN-13 |
: 3662468786 |
Rating |
: 4/5 (84 Downloads) |
Synopsis Sleep, Neuronal Plasticity and Brain Function by : Peter Meerlo
This book reviews current knowledge on the importance of sleep for brain function, from molecular mechanisms to behavioral output, with special emphasis on the question of how sleep and sleep loss ultimately affect cognition and mood. It provides an extensive overview of the latest insights in the role of sleep in regulating gene expression, synaptic plasticity and neurogenesis and how that in turn is linked to learning and memory processes. In addition, readers will learn about the potential clinical implications of insufficient sleep and discover how chronically restricted or disrupted sleep may contribute to age-related cognitive decline and the development of psychiatric disorders such as schizophrenia and depression. The book consists of 19 chapters, written by experts in basic sleep research and sleep medicine, which together cover a wide range of topics on the importance of sleep and consequences of sleep disruption. This book will be of interest to students, researchers and clinicians with a general interest in brain function or a specific interest in sleep.
Author |
: Benjamin Reiss |
Publisher |
: Basic Books |
Total Pages |
: 305 |
Release |
: 2017-03-07 |
ISBN-10 |
: 9780465094851 |
ISBN-13 |
: 0465094856 |
Rating |
: 4/5 (51 Downloads) |
Synopsis Wild Nights by : Benjamin Reiss
Why the modern world forgot how to sleep Why is sleep frustrating for so many people? Why do we spend so much time and money managing and medicating it, and training ourselves and our children to do it correctly? In Wild Nights, Benjamin Reiss finds answers in sleep's hidden history -- one that leads to our present, sleep-obsessed society, its tacitly accepted rules, and their troubling consequences. Today we define a good night's sleep very narrowly: eight hours in one shot, sealed off in private bedrooms, children apart from parents. But for most of human history, practically no one slept this way. Tracing sleep's transformation since the dawn of the industrial age, Reiss weaves together insights from literature, social and medical history, and cutting-edge science to show how and why we have tried and failed to tame sleep. In lyrical prose, he leads readers from bedrooms and laboratories to factories and battlefields to Henry David Thoreau's famous cabin at Walden Pond, telling the stories of troubled sleepers, hibernating peasants, sleepwalking preachers, cave-dwelling sleep researchers, slaves who led nighttime uprisings, rebellious workers, spectacularly frazzled parents, and utopian dreamers. We are hardly the first people, Reiss makes clear, to chafe against our modern rules for sleeping. A stirring testament to sleep's diversity, Wild Nights offers a profound reminder that in the vulnerability of slumber we can find our shared humanity. By peeling back the covers of history, Reiss recaptures sleep's mystery and grandeur and offers hope to weary readers: as sleep was transformed once before, so too can it change today.