Body temperature, activity and energy costs
نویسندگان
چکیده
منابع مشابه
Basking hamsters reduce resting metabolism, body temperature and energy costs during rewarming from torpor.
Basking can substantially reduce thermoregulatory energy expenditure of mammals. We tested the hypothesis that the largely white winter fur of hamsters (Phodopus sungorus), originating from Asian steppes, may be related to camouflage to permit sun basking on or near snow. Winter-acclimated hamsters in our study were largely white and had a high proclivity to bask when resting and torpid. Restin...
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Lactation is the most energy-demanding phase of mammalian reproduction, and lactation performance may be affected by events during pregnancy. For example, food intake may be limited in late pregnancy by competition for space in the abdomen between the alimentary tract and fetuses. Hence, females may need to compensate their energy budgets during pregnancy by reducing activity and lowering body ...
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The energy efficiency of neural signal transmission is important not only as a limiting factor in brain architecture, but it also influences the interpretation of functional brain imaging signals. Action potential generation in mammalian, versus invertebrate, axons is remarkably energy efficient. Here we demonstrate that this increase in energy efficiency is due largely to a warmer body tempera...
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The aim of present study was to determine ambulatory activity, body composition and energy consumption in college students and to investigate the relationship between these components. A total of 914 Turkish college female (n = 441, age 21.1 ± 1.6 years, height 167.8 ± 6.4 cm, weight 58.2 ± 8.8 kg) and male students (n = 473, age 22 ± 1.9 years, height 176.7 ± 5.9 cm, weight 70.9 ± 9.3 kg) part...
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We studied the temperature relations of wild and zoo Aldabra giant tortoises (Aldabrachelys gigantea) focusing on (1) the relationship between environmental temperature and tortoise activity patterns (n = 8 wild individuals) and (2) on tortoise body temperature fluctuations, including how their core and external body temperatures vary in relation to different environmental temperature ranges (s...
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ژورنال
عنوان ژورنال: Nature
سال: 1980
ISSN: 0028-0836,1476-4687
DOI: 10.1038/283335a0