Flexibility in basal metabolic rate and evaporative water loss among hoopoe larks exposed to different environmental temperatures
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چکیده
منابع مشابه
Flexibility in basal metabolic rate and evaporative water loss among hoopoe larks exposed to different environmental temperatures.
The 'energy demand' hypothesis for short-term adjustments in basal metabolic rate (BMR) posits that birds adjust the size of their internal organs relative to food intake, a correlate of energy demand. We tested this hypothesis on hoopoe larks (Alaemon alaudipes), inhabitants of the Arabian desert, by acclimating birds for 3 weeks at 15 degrees C and at 36 degrees C, then measuring their BMR an...
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Because deserts are characterized by low food availability, high ambient temperature extremes, and absence of drinking water, one might expect that birds that live in these conditions exhibit a lower basal metabolic rate (BMR), reduced total evaporative water loss (TEWL), and greater ability to cope with high air temperatures than their mesic counterparts. To minimize confounding effects of phy...
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Strict criteria have been established for measurement of basal metabolic rate and standard evaporative water loss to ensure that data can be compared intra- and interspecifically. However, data-sampling regimes vary, from essentially continuous sampling to interrupted (switching) systems with data recorded periodically at more widely spaced intervals. Here we compare one continuous and three in...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2000
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.203.20.3153