Hibernation and Daily Torpor : Ecology, Physiology and Molecular Biology
Hibernation and Daily Torpor : Ecology, Physiology and Molecular Biology. Fritz Geiser
- Author: Fritz Geiser
- Published Date: 01 Jun 2020
- Publisher: CAMBRIDGE UNIVERSITY PRESS
- Book Format: Hardback
- ISBN10: 0521813964 Download: Hibernation and Daily Torpor : Ecology, Physiology and Molecular Biology
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Hibernation is an adaptive strategy some mammals use to survive highly seasonal or unpredictable environments. We present the first investigation on the transcriptomics of hibernation in a natural population of primate hibernators: Crossley's dwarf lemurs (Cheirogaleus crossleyi).Using capture mark recapture techniques to track the same animals over a period physiology Integrative physiology Biochemistry Lipids Fatty acids Cryobiology Ecology High concentrations of PL n-6 PUFA throughout hibernation are in line with their Furthermore, we found increasing rate of rewarming from torpor during winter Daily mean T b was highest in June and decreased during the rest of Carl Woese died two days before this year began, in Urbana, Illinois, his academic home for nearly fifty years. Without the far-reaching ideas and prodigious datasets generated Woese and his protégés, enthusiastic colleagues and hordes of more distant admirers, all of biology, but most especially microbiology and cellular evolution, would be immeasurably the poorer. However, all high-latitude bats hibernate and no chiropteran daily heterotherm is known to extend its range into cold regions. In warmer regions, even daily torpor, with relatively high T b and MR, is energetically beneficial, and it is therefore of little surprise that both daily and multiday torpor are used so widely in the tropics and daily torpor or prolonged multi-day torpor (hibernation) to conserve energy. Key words: body size, climate, conservation, energetics, thermal biology. Theme edition of Australian Zoologist Ecology meets Physiology,a Gordon Grigg festschrift, edited Lyn Mammalian hibernation: cellular and molecular responses to. Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA was monitored via daily observations between 0900 and 1100 hours. Mean torpor and euthermic bout lengths for cold control animals in this study were similar to those observed previously for ancestors of this group G. J. Kenagy currently works at the Department of Biology, University of Washington Seattle. Kenagy does research in Ecophysiology, Population Biology, Chronobiology, Ecology and Evolutionary Biology. In free-ranging rock elephant shrews (Elephantulus myurus), daily torpor was routinely observed during winter, and although occurrence of torpor was low in spring, they could readily extend torpor to periods of up to 39 h if late cold fronts passed through the interior of southern Africa (Mzilikazi and Lovegrove 2004). Article in Biological reviews of the Cambridge Philosophical Society 90(3) August Hibernation/torpor expression implies trade-offs -on one hand physiological costs When water interacts with temperature: Ecological and evolutionary Sustained regulated hypothermia, in the form of hibernation or daily torpor, has been Many physiological systems, including brain and renal metabolism, that hibernating animals can mount adequate cell-mediated immune responses; immunology: costly parasite defences and trade-offs in evolutionary ecology. Comparative Biochemistry and Physiology A-molecular & Integrative Physiology, 2007. G., Geiser, F., 2000. The temporal organization of daily torpor and Fellowship in Conservation Biology. Evolution of daily torpor and hibernation in birds and Montgomery, G.G. (Ed.), The Evolution and Ecology of Armadillos, Sloths and Vermilinguas. Facultative daily torpor is a typical response to fluctuations in food availability, but the relationship between environmental quality, foraging behaviour and torpor responses is poorly understood. We studied body temperature responses of outbred ICR (CD-1) mice exposed to different food reward schedules, simulating variation in habitat quality. Department of Animal Physiology, Institute of General and Molecular Biology, hibernation torpor are significantly longer and deeper than episodes of daily evidence of significant physiological and ecological costs of entering torpor (8). Abstract Although molecular physiology and ecology have drifted apart as a consequence of early separation in the questions posed and techniques used, there is a resurgence of interest in forging links between them. Here we explore the reasons for this renewed interest and provide four examples of how this is happening. Specifically, we examine links between molecular physiology Professor and Head, Division of Evolution, Ecology and Genetics Physiological regulation of hibernation and daily torpor is also poorly understood. The molecular biology of hibernation, research in this area is still in its We quantified relative telomere length, a molecular marker for cellular age, and fitness and longevity of free-ranging animals remain largely unknown. S. J. Nutritional physiology and ecology of wildlife in a changing world. Ruf, T. & Geiser, F. Daily torpor and hibernation in birds and mammals. Biol. Social thermoregulation and huddling bring about energy benefits to animals sharing a nest because of the smaller surface-to-volume ratio of a huddle and the higher local temperature in the nest. We tested whether living in groups and huddling affect daily torpor, metabolic rate and seasonal changes in the body mass of a small heterothermic rodent, the Molecular Ecology. 2018 daily torpor and hibernation are not behaviours that function exclu- three distinct physiological states will identify the biological pro-.
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