High peripheral temperatures in king penguins while resting at sea: thermoregulation versus fat deposition
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چکیده
منابع مشابه
CALL FOR PAPERS Physiology and Pharmacology of Temperature Regulation Changes in body temperatures in king penguins at sea: the result of fine adjustments in peripheral heat loss?
Schmidt, Alexander, Frank Alard, and Yves Handrich. Changes in body temperatures in king penguins at sea: the result of fine adjustments in peripheral heat loss? Am J Physiol Regul Integr Comp Physiol 291: R608–R618, 2006. First published April 20, 2006; doi:10.1152/ajpregu.00826.2005.—To investigate thermoregulatory adjustments at sea, body temperatures (the pectoral muscle and the brood patch...
متن کاملChanges in body temperature in king penguins at sea: the result of fine adjustments in peripheral heat loss?
To investigate thermoregulatory adjustments at sea, body temperatures (the pectoral muscle and the brood patch) and diving behavior were monitored during a foraging trip of several days at sea in six breeding king penguins Aptenodytes patagonicus. During inactive phases at sea (water temperature: 4-7 degrees C), all tissues measured were maintained at normothermic temperatures. The brood patch ...
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King penguins make up the bulk of avian biomass on a number of sub-Antarctic islands where they have a large functional effect on terrestrial and marine ecosystems. The same applies at Marion Island where a substantial proportion of the world population breeds. In spite of their obvious ecological importance, the at-sea distribution and behavior of this population has until recently remained en...
متن کاملMetabolism and thermoregulation during fasting in king penguins, Aptenodytes patagonicus, in air and water.
We measured oxygen consumption rate (Vo(2)) and body temperatures in 10 king penguins in air and water. Vo(2) was measured during rest and at submaximal and maximal exercise before (fed) and after (fasted) an average fasting duration of 14.4 +/- 2.3 days (mean +/- 1 SD, range 10-19 days) in air and water. Concurrently, we measured subcutaneous temperature and temperature of the upper (heart and...
متن کاملAt-Sea Associations in Foraging Little Penguins
Prey distribution, patch size, and the presence of conspecifics are important factors influencing a predator's feeding tactics, including the decision to feed individually or socially. Little is known about group behaviour in seabirds as they spend most of their lives in the marine environment where it is difficult to observe their foraging activities. In this study, we report on at-sea foragin...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2017
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.158980