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Resting and peak metabolic rates of Arctic Tern nestlings and their relations to growth rate

Klaassen, Marcel and Bech, Claus 1992, Resting and peak metabolic rates of Arctic Tern nestlings and their relations to growth rate, Physiological zoology, vol. 65, no. 4, July - August, pp. 803-814.

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Title Resting and peak metabolic rates of Arctic Tern nestlings and their relations to growth rate
Author(s) Klaassen, MarcelORCID iD for Klaassen, Marcel orcid.org/0000-0003-3907-9599
Bech, Claus
Journal name Physiological zoology
Volume number 65
Issue number 4
Season July - August
Start page 803
End page 814
Total pages 12
Publisher University of Chicago Press
Place of publication Chicago, Ill.
Publication date 1992-07
ISSN 0031-935X
Summary We measured resting and peak metabolism in relation to growth rate in arctic tern Sterna paradisaea chicks over the first 10 d after hatching. For chicks with varying growth rate, body mass seems to be a better predictor of resting metabolic rate rather than age. The effect of changes in growth rate on resting metabolism of arctic terms is smaller than found interspecifically in hatchlings. It is possible that difference exist in the heat increment of feeding between fast and slow growers that would further reduce the effect of growth rate on resting metabolism. Chicks that had body masses lower than 75% of that expected for their age were metabolically inferior in withstanding a thermal challenge compared with chicks of the same age but normal mass. In contrast to resting metabolic rate, the extent of peak metabolic rate is related to both body mass and age. This, in part, the maturation of the thermoregulatory system proceeds steadily with time even when body mass lags behind.
Language eng
Field of Research 060603 Animal Physiology - Systems
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©1992, University of Chicago Press
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30075863

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