Results 121 to 130 of about 485 (157)
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Heterothermy in the southern African hedgehog, Atelerix frontalis
Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 2010Most research on mammalian heterothermic responses in southern Africa tends to be laboratory based and biased towards rodents and smaller members of the Afrotheria. In this study, we continuously measured body temperature of southern African hedgehogs (Atelerix frontalis) between April and August 2009 (-10°C
Nomakwezi Mzilikazi
exaly +3 more sources
Can heterothermy facilitate the colonization of new habitats?
Mammal Review, 2015Abstract Increasing evidence shows that torpor in mammals is not only an effective adaptation for surviving predictable seasonal harsh conditions but is also employed as a response to acute emergency situations. This finding leads to the hypothesis that the ability to become heterothermic can also facilitate the colonization of new habitats, when ...
Julia Nowack
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Absence of heterothermy in the European red squirrel (Sciurus vulgaris)
Mammalian Biology, 2013The European red squirrel Sciurus vulgaris inhabits areas which undergo profound seasonal declines in food availability and ambient temperature. We measured the body temperature (Tb) of free-ranging S. vulgaris over the course of one year to examine its thermoregulatory strategies and found no evidence of heterothermy, with Tb never dropping below 36.7
Julian Glos +2 more
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Adaptive heterothermy and selective brain cooling in arid-zone mammals
Comparative Biochemistry and Physiology - B Biochemistry and Molecular Biology, 2002Adaptive heterothermy and selective brain cooling are regarded as important thermal adaptations of large arid-zone mammals. Adaptive heterothermy, a process which reduces evaporation by storing body heat, ought to be enhanced by ambient heat load and by water deficit, but most mammals studied fail to show at least one of those attributes.
Andrea Fuller +2 more
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Hot bats go cold: heterothermy in neotropical bats
Canadian Journal of Zoology, 2017Torpor is common in bats, but has historically been viewed as an energy-saving technique reserved for temperate and subarctic climates; however, torpor use is common across several tropical bat families. Central America hosts a great diversity of bats with approximately 150 species, yet data from this area are lacking compared with tropical Africa and
Zenon Czenze
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Flexible patterns in energy savings: heterothermy in primates
Journal of Zoology, 2014AbstractHeterothermy is an energy‐saving strategy usually employed in response to environmental bottlenecks, which is common in almost all mammalian orders. Within the order primates, heterothermy has been physiologically confirmed only in the family Cheirogaleidae (Cheirogaleus, Microcebus, Allocebus, Mirza) of the Malagasy lemurs, and the southern ...
exaly +2 more sources
Time course of peripheral heterothermy in a homeotherm
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 1980The integrity of the peripheral heterothermic response was monitored in adult Sprague-Dawley rats during cold acclimation. Subcutaneous peripheral temperature gradients were simultaneously recorded in the hindlimbs. One limb was exposed to room temperature (22 +/- 2 degrees C) while the contralateral limb was gradually cooled to 0 +/- 1 degrees C ...
R T, Brown, J G, Baust
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High level of daily heterothermy in desert gerbils
Journal of Tropical Ecology, 2022AbstractDaily heterothermy is a strategy employed by endothermic birds and mammals to reduce their energetic costs by lowering their metabolic rate. We recorded nocturnal and diurnal rectal temperatures in three Moroccan Gerbillus rodent species to determine the level of heterothermy.
Clara Gyhrs +6 more
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Diversity and Geography of Torpor and Heterothermy
2021In this chapter, the diversity of heterotherms, where they live and how they differ from each other is covered in detail. When data from free-ranging animals were available these were used preferentially, but information on captive animals is also included.
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Afrotropical Heterothermy: A Continuum of Possibilities
2012The three closely related primate species Cheirogaleus medius , Microcebus griseorufus , and Galago moholi employ a spectrum of thermoregulatory responses to environmental bottlenecks. C. medius is an obligate hibernator, M. griseorufus shows extreme flexibility in patterns of heterothermy, ranging from daily torpor to prolonged torpor and hibernation,
Kathrin H. Dausmann +3 more
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