. Comparative animal physiology. Physiology, Comparative; Physiology, Comparative. .010 .008 .006 - .004 .002 TALORCHESTIA. 30 400 300 BODY WEIGHT (mgmt.) 200 100 Fig. 54. Oxygen consumption in click beetles, Melanotus, and beach fleas, Talorchestia, of different weights, showing the greater response of the smaller individuals to tempera- ture change. After Edwards.^'^^ at evening (61° F.).-° Koskimies-"-* has recently shown that under conditions of partial starvation swifts (Micropiis a. apus) become poikilothermic—the body temperature drops in the early morning hours to within 2-3° C. o


. Comparative animal physiology. Physiology, Comparative; Physiology, Comparative. .010 .008 .006 - .004 .002 TALORCHESTIA. 30 400 300 BODY WEIGHT (mgmt.) 200 100 Fig. 54. Oxygen consumption in click beetles, Melanotus, and beach fleas, Talorchestia, of different weights, showing the greater response of the smaller individuals to tempera- ture change. After Edwards.^'^^ at evening (61° F.).-° Koskimies-"-* has recently shown that under conditions of partial starvation swifts (Micropiis a. apus) become poikilothermic—the body temperature drops in the early morning hours to within 2-3° C. of the external temperature, respiratory breathing rate falls from about 40 to 10 per minute, and the oxygen consumption decreases proportionately. The sloth'^*^ too tends toward poikilothermy as a respiratory increase accompanies a temperature rise from 33° to 37° C. All things considered, it becomes increasingly evident that many mammals and birds show marked changes in internal temperature and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Prosser, C. Ladd (Clifford Ladd), 1907-; Bishop, David W. Philadelphia, Saunders


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