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Article

Phenotypic flexibility in basal metabolic rate and the changing view of avian physiological diversity: a review.

Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology - 1 Mar 2008

McKechnie Andrew E

Abstract excerpt

Comparative analyses of avian energetics often involve the implicit assumption that basal metabolic rate (BMR) is a fixed, taxon-specific trait. However, in most species that have been investigated, BMR exhibits phenotypic flexibility and can be reversibly adjusted over short time scales. Many non-migrants adjust BMR seasonally, with the winter BMR usually higher than the summer BMR. The data that are currently...

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PMID: 17957373
DOI: 10.1007/s00360-007-0218-8

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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