The emergence of endothermy in the black-footed and Laysan albatrosses

Autor:	William R. Dawson, G.C Whittow
Rok vydání:	1994
Předmět:	Physiology Hatching Ecology Zoology Human physiology Thermoregulation Biology Biochemistry Endocrinology Air temperature Animal Science and Zoology O2 consumption Hatchling Ecology Evolution Behavior and Systematics
Zdroj:	Journal of Comparative Physiology B. 164:292-298
ISSN:	1432-136X 0174-1578
DOI:	10.1007/bf00346445
Popis:	Eggs with pip-holes of the black-footed (Diomedea nigripes) and Laysan (Diomedea immutabilis) albatrosses were exposed to various air temperatures in the range 20–35°C in order to detect signs of incipient endothermy in late embryos. No evidence of endothermy was found. In contrast, the O2 consumption of most hatchlings increased in response to cooling, the O2 consumption at an air temperature of 25° C exceeding that between 34 and 35°C by 40%. In a minority of hatchlings this response was not seen. It was suggested that endothermy may develop at some time during the 24 h after hatching.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::82d5ca1513503886fe845dbe454d6249 https://doi.org/10.1007/bf00346445 Zobrazit plný text záznamu Full text from SpringerLink