Download or read book Body Lipids Reproduction and Hibernation in the Golden mantled Ground Squirrel Spermophilus Lateralis written by Nancy Gene Forger and published by . This book was released on 1986 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife Review written by and published by . This book was released on 1988 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Zoology written by and published by . This book was released on 1999 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecosystem Dynamics of the Boreal Forest The Kluane Project written by Vancouver Charles J. Krebs Professor of Zoology University of British Columbia and published by Oxford University Press, USA. This book was released on 2001-03-31 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: The boreal forest is one of the world's great ecosystems, stretching across North America and Eurasia in an unbroken band and containing about 25% of the world's closed canopy forests. The Kluane Boreal Forest Ecosystem Project was a 10-year study by nine of Canada's leading ecologists to unravel the impact of the snowshoe hare cycle on the plants and the other vertebrate species in the boreal forest. In much of the boreal forest, the snowshoe hare acts as a keystone herbivore, fluctuating in 9-10 year cycles, and dragging along secondary cycles in predators such as lynx and great-horned owls. By manipulating the ecosystem on a large scale from the bottom via fertilizer additions and from the top by predator exclosures, they have traced the plant-herbivore relationships and the predator-prey relationships in this ecosystem to try to answer the question of what drives small mammal population cycles. This study is unique in being large scale and experimental on a relatively simple ecosystem, with the overall goal of defining what determines community structure in the boreal forest. Ecosystem Dynamics of the Boreal Forest: The Kluane Project summarizes these findings, weaving new discoveries of the role of herbivores-turned-predators, compensatory plant growth, and predators-eating-predators with an ecological story rich in details and clear in its findings of a community where predation plays a key role in determining the fate of individuals and populations. The study of the Kluane boreal forest raises key questions about the scale of conservation required for boreal forest communities and the many mammals and birds that live there.
Download or read book Ecological Physiology of Daily Torpor and Hibernation written by Fritz Geiser and published by Springer Nature. This book was released on 2021-08-23 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Living in a Seasonal World written by Thomas Ruf and published by Springer Science & Business Media. This book was released on 2012-04-23 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. .
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1993 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Mammalogy written by and published by . This book was released on 1999 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arctic written by and published by . This book was released on 1981 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin of the Southern California Academy of Sciences written by Southern California Academy of Sciences and published by . This book was released on 1974 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The American Midland Naturalist written by and published by . This book was released on 1986 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Experimental Biology written by and published by . This book was released on 2002 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lemurs written by Lisa Gould and published by Springer Science & Business Media. This book was released on 2006-12-13 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together information from recent research, and provides new insight into the study of lemur origins, and the ecology and adaptation of both extant and recently extinct lemurs. In addition, it addresses issues of primate behavioral ecology and how environment can play a major role in explaining species variation. It is the only comprehensive volume to focus on lemur ecology and adaptability, with chapters written by all the big names in the field.
Download or read book Bulletin written by Southern California Academy of Sciences and published by . This book was released on 1975 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lipids written by James F. Mead and published by Springer. This book was released on 2013-04-09 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: For a number of years, we have been teaching a course on the chemical, meta bolic, and nutritional aspects of lipids to graduate and postdoctoral students in the health sciences at the University ofCalifornia, Los Angeles. The course was taught in an "open-ended" manner-that is, after each subject was introduced, a discussion was continued for as long as necessary to explore thoroughly its cur rent status. It became evident that no text was available that could supplement the lectures adequately. This book is an attempt to remedy the deficiency and to treat extensively-although not exhaustively-most aspects of lipids, ranging from their physical and chemical properties, through biochemistry and metabolic pathways, to their role in nutrition. It is intended, as were the lectures, for those who have a basic knowledge of biochemistry, but wish to increase their know ledge of lipids. These may include graduate or advanced students, investigators preparing to enter research in lipids, clinicians, and, indeed, all those who may profit by an increased awareness ofthe importance oflipids. Although most of the subjects treated are given adequate references, it was not our intention that this book would be a complete reference source. Rather, those publications cited are deemed by the authors of each chapter to be impor tant and to lead to further reading. Inevitably, many more references are given for those subjects in which rapid advances are now being made than for those that are somewhat more static.
Download or read book Life in the Cold written by Gerhard Heldmaier and published by Springer Science & Business Media. This book was released on 2000-08-07 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Living in the Cold written by André Malan and published by John Libbey Eurotext. This book was released on 1989 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
