title: [Functional implication of the basal metabolic rate in homeothermic animals].
abstract: Data on energetic profile of many species Passeriformes and Non-Passeriformes show that the basal metabolic rate (BMR) is strongly correlated with potential energy (MPE) and potential productive energy (PPE) (MPE is about 4BMR in all homeothermic animals). BMR is the minimal power of animal and strongly correlated with the daily work output, which may be determined by measuring total animal activity. Hence, BMR is the fundamental scale of power which determines the intensity of the actual interaction of an individual with the environment. The increase in BMR of a particular animal should rise the potential energy (MPE), potential productive energy (PPE), and the level of daily work output. BMR in Passerines birds is 1.3-1.5 fold higher than that in Non-Passerines and Mammals. Origin ofendothermy in the course of evolution should be associated with needs of general activity rather than with the requirements of thermoregulation.
authors.forename: V M
authors.initials: VM
authors.lastname: Gavrilov
mesh_terms: D000818:Animals; D001481:Basal Metabolism / Q000502:physiology; D001833:Body Temperature Regulation / Q000502:physiology; D004734:Energy Metabolism / Q000502:physiology*; D008962:Models, Theoretical; D046109:Passeriformes / Q000378:metabolism* / Q000502:physiology*