黑背信天翁的孵化能量学。

Incubation energetics of the Laysan Albatross.

作者信息

Pettit T N, Nagy K A, Ellis H I, Whittow G C

机构信息

Department of Physiology, John A. Burns School of Medicine, University of Hawaii, 1960 East West Road, 96822, Honolulu, HI, USA.

Laboratory of Biomedical and Environmental Sciences, University of California, 900 Veteran Avenue, 90024, Los Angeles, CA, USA.

出版信息

Oecologia. 1988 Jan;74(4):546-550. doi: 10.1007/BF00380052.

DOI:10.1007/BF00380052

PMID:28311761

Abstract

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.

摘要

采用双标记水技术估算了正在孵卵和觅食的黑背信天翁（Phoebastria immutabilis，平均体重3.07千克）的能量消耗。在孵卵期间，其能量消耗与未孵卵的静息鸟类相似。觅食信天翁的能量消耗（2072千焦/天）是静息鸟类的2.6倍。得出的结论是，热带黑背信天翁的能量消耗不低于在寒冷的高纬度海洋觅食的物种。为一对正在孵卵的信天翁编制的能量预算显示，在孵卵期间，雌性的能量消耗大于雄性。