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An analysis of hatchling resting metabolism: in search of ecological correlates that explain deviations from allometric relations

journal contribution
posted on 2023-10-26, 03:19 authored by Marcel KlaassenMarcel Klaassen, R Drent
From data in the literature, an allometric equation is compiled for hatchling resting metabolic rate and an attempt is made to explain residual variation in terms of hatchling type, yolk and water content, embryonic and postnatal growth rate, and environmental circumstances (latitudinal distribution). The body mass exponent for resting metabolism in hatchlings was 0.86 and, thus, substantially different from the values compiled for adult birds (0.67-0.75). Relatively high hatchling metabolic rates were found for birds exhibiting high embryonic and postnatal growth rates, as well as for those species that hatched at high latitudes. A functional explanation is postulated for the correlations between hatchling metabolism and these three variables.

History

Journal

Condor

Volume

93

Pagination

612-629

Location

Berkeley, Calif.

ISSN

0010-5422

Language

eng

Publication classification

C Journal article, C1.1 Refereed article in a scholarly journal

Copyright notice

1991, Cooper Ornithological Society

Issue

3

Publisher

Cooper Ornithological Society