The cost of a hot meal: facultative specific dynamic action may ensure temperature homeostasis in post-ingestive endotherms.
作者： R.P Wilson , B.M Culik
DOI: 10.1016/0300-9629(91)90198-L
关键词: Assimilation (biology) 、 Temperature homeostasis 、 Facultative 、 Foraging 、 Ecology 、 Pygoscelis 、 Adelie penguin 、 Biology 、 Animal science 、 Basal metabolic rate 、 Specific dynamic action
摘要: Abstract 1. Resting metabolic rate was determined in Adelie penguins ( Pygoscelis adeliae ) that had been fed warm and cold ingesta. 2. Post-ingestion found to be related food temperature rather than specific dynamic action. 3. Calorimeteric calculations indicate up 13% of penguin daily energy expenditure may used heating ingested body temperature. 4. Heating costs are predicted higher endotherms living regions species with low assimilation efficiencies, but minimized by appropriate foraging behaviour.
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