Evaporative Cooling and Water Balance During Flight In Birds
Abstract
The rate of evaporative cooling was calculated from the rate of mass loss in starlings (Sturnus vulgaris) during 90 min flights in a wind-tunnel. Evaporative heat loss ranged from 5% of the metabolic rate at -5 degrees C to 19% of the metabolic rate at 29 degrees C. Radiation and convection accounted for the balance of the heat loss. On average, starlings dehydrated during flights at all temperatures above 7 degrees C. The comparison of these results with data from field studies, which indicate that long-distance migrants do not dehydrate, suggests that migrants may maintain water balance by ascending to colder air in which convection carries off most of the heat produced.
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References 22 · Cited by 77
- Authors
- Torre-Bueno, J. R.
- Affiliations
- Rockefeller University (US)
- Corresponding author
- Torre-Bueno, Jose R.
- Venue
- Journal of Experimental Biology
- Publisher
- The Company of Biologists
- Published
- 1978-08-01
- Volume
- 75
- Issue
- 1
- Pages
- 231-236
- ISSN
- 0022-0949 (ISSN-L)
- 1477-9145
- OpenAlex
- W2105330889
- Cited by
- 77
- References
- 22
- Citations by year
- 2026: 1 · 2021: 3 · 2020: 2 · 2019: 1 · 2017: 2 · 2016: 1 · 2014: 1
- FWCI
- 2.94
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Experimental Biology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Ecology › Physiological and biochemical adaptations
- Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
- Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Effects of Environmental Stressors on Livestock
- Keywords
- evaporative cooling, water balance, flight thermoregulation, Sturnidae, Sturnus vulgaris, dehydration, heat loss, convection, radiation, metabolic rate, long-distance migration, avian thermoregulation
- MeSH terms
- Animals, Birds, Body Temperature Regulation, Body Water, Body Weight, Energy Metabolism, Flight, Animal, Water-Electrolyte Balance
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