Total Evaporative Water Loss in Birds at Different Ambient Temperatures: Allometric and Stoichiometric Approaches.

ABSTRACT: Valery M. Gavrilov (2017) Total evaporative water loss (TEWL) in Passeriformes and Non-Passeriformes was estimated by simultaneous measurements of energy expenditure and mass loss in resting birds. It was found that the percentage of heat dissipated by water evaporation depends on body size. Published data for 102 bird species were analyzed together with my own measurements for 157 bird species at thermally neutral temperatures (mostly 25°C) to establish the following relationship between TEWL and body mass: TEWL25°C Aves = 0.28 m^0.701, R ² = 0.92, where TEWL is in g H₂O/day and m is body mass (g). The scaling exponent 0.701 ± 0.007 is 0.05 greater than for the relationship of basal metabolic rate (BMR

SUBMITTER: Gavrilov VM 

PROVIDER: S-EPMC6517701 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature