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

• Published in: The Condor
• Main Authors: Klaassen, Marcel, Drent, Rudolf
• Format: Article in Journal/Newspaper
• Language: English
• Published: 1991
• Subjects: HATCHLING; RESTING METABOLIC RATE; ALLOMETRIC RELATION; HATCHLING TYPE; GROWTH RATE; LATITUDE; CHICK ENERGETICS; EMBRYONIC OXYGEN-CONSUMPTION; FOWL LEIPOA-OCELLATA; ARCTIC TERN CHICKS; TEMPERATURE REGULATION; GROWTH-RATE; BODY SIZE; ENERGY-METABOLISM; THERMAL CONDUCTANCE; ALECTURA-LATHAMI; CIRCADIAN PHASE; Arctic; Arctic tern
• Online Access: http://hdl.handle.net/11370/ecc7d7f8-0b89-4400-ac64-0975672ad01e; https://research.rug.nl/en/publications/an-analysis-of-hatchling-resting-metabolism(ecc7d7f8-0b89-4400-ac64-0975672ad01e).html; https://doi.org/10.2307/1368193; https://pure.rug.nl/ws/files/66804364/1368193.pdf

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.