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Gaseous Metabolism and Water Relations of the Zebra Finch, Taeniopygia castanotis
- W. Calder
- Environmental SciencePhysiological Zoology
- 1 October 1964
The investigation of the zebra finch, Taeniopygia castanotis (= Poephila guttata), reported herein represents an effort in that direction to reveal hitherto unsuspected adaptations of xerophilous species.
Body Size, Physiological Time, and Longevity of Homeothermic Animals
Life span, like the other scales of physiological time, may be regarded, not as a direct product of natural selection, but rather as an allometric consequence of other characteristics subjected to natural selection.
Body Size and Longevity in Birds
The Integration of Osmoregulation and Energy Balance in Hummingbirds
The hummingbird is a unique animal: its kidney appears to be structurally similar to that of a reptile, but its rate of waterflux is more typical of an amphibian; it sustains a metabolic level as high as that of any endotherm.
Temperature regulation and evaporation in the pigeon and the roadrunner.
Respiratory and Heart Rates of Birds at Rest
- W. Calder
- Biology, Environmental Science
- 1 October 1968
The respiratory rates of birds are inversely related to their body weights (Groebbels 1932; Salt and Zeuthen 1960). Odum (1945) noted that birds breathe at lower frequencies than do mammals of…
A preliminary allometric analysis of respiratory variables in resting birds.
TRACHEAL DEAD SPACE IN THE RESPIRATION OF BIRDS
The increasing availability of data on commonly measured physiological and anatomical features permits allometric consideration of convergence, giving rather far-reaching implications and suggestions from such a simple technique.