Incubation energetics of the Laysan Albatross

Autor: H. I. Ellis, Kenneth A. Nagy, G. C. Whittow, T. N. Pettit
Rok vydání: 1988
Předmět:
Zdroj: Oecologia. 74:546-550
ISSN: 1432-1939
0029-8549
DOI: 10.1007/bf00380052
Popis: The energy expenditure of incubating and foraging Laysan Albatross (Diomedea immutabilis, mean body weight 3.07 kg) was estimated by means of the doubly-labelled water technique. During incubation, the energy expenditure was similar to that of resting birds that were not incubating an egg. The energy expenditure of foraging albatross (2072 kJ/day) was 2.6 times that of resting birds. It was concluded that the energy expenditure of the tropical Laysan Albatross was not less than that of species foraging over cold, high-latitude oceans. An energy budget compiled for an incubating pair of albatross revealed that the energy expenditure of the female was greater than that of the male bird, during the incubation period.
Databáze: OpenAIRE