caa a22 4500 605514194 CHVBK 20210128100703.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00360-015-0888-6 doi (NATIONALLICENCE)springer-10.1007/s00360-015-0888-6 The effects of long-term captivity on the metabolic parameters of a small Afrotropical bird [Elektronische Daten] [Lindy Thompson, Mark Brown, Colleen Downs] The few within-species studies on the effects of long-term captivity on avian physiological variables have small samples sizes and contradictory results. Nevertheless, many physiological studies make use of long-term captive birds, assuming the results will be applicable to wild populations. Here we investigated the effects of long-term captivity on a variety of physiological measurements in a relatively small (~12g) southern African endemic bird, the Cape white-eye (Zosterops virens). Whole animal basal metabolic rate (BMR) and body mass (Mb) were influenced more by long-term captivity than by season, while mass-specific BMR, standard and basal whole animal and mass-specific evaporative water loss (EWL), and respiratory quotient (RQ), were all affected primarily by season, with long-term captivity having less of an effect. We therefore caution that whole animal BMR and Mb of long-term captive birds should not be used as representative of wild populations, and that the origin of study birds should be considered when comparing EWL and RQ of wild and long-term captive birds. Springer-Verlag Berlin Heidelberg, 2015 Avian basal metabolic rate nationallicence Cape white-eye Zosterops virens nationallicence Evaporative water loss nationallicence Long-term captivity nationallicence Respiratory quotient nationallicence Seasonal effects nationallicence BMR : Basal metabolic rate nationallicence EWL : Evaporative water loss nationallicence Mb : Body mass nationallicence RMR : Resting metabolic rate nationallicence RQ : Respiratory quotient nationallicence Ta : Ambient temperature nationallicence $$\dot{\text{V}}$$ V ˙ CO2 : Rate of CO2 production nationallicence $$\dot{\text{V}}$$ V ˙ O2 : Rate of O2 consumption nationallicence Thompson Lindy School of Life Sciences, University of KwaZulu-Natal, Private Bag X01, 3209, Pietermaritzburg, South Africa aut Brown Mark School of Life Sciences, University of KwaZulu-Natal, Private Bag X01, 3209, Pietermaritzburg, South Africa aut Downs Colleen School of Life Sciences, University of KwaZulu-Natal, Private Bag X01, 3209, Pietermaritzburg, South Africa aut Journal of Comparative Physiology B Springer Berlin Heidelberg 185/3(2015-04-01), 343-354 0174-1578 185:3<343 2015 185 360 https://doi.org/10.1007/s00360-015-0888-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00360-015-0888-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Thompson Lindy School of Life Sciences, University of KwaZulu-Natal, Private Bag X01, 3209, Pietermaritzburg, South Africa aut NATIONALLICENCE 700 1- Brown Mark School of Life Sciences, University of KwaZulu-Natal, Private Bag X01, 3209, Pietermaritzburg, South Africa aut NATIONALLICENCE 700 1- Downs Colleen School of Life Sciences, University of KwaZulu-Natal, Private Bag X01, 3209, Pietermaritzburg, South Africa aut NATIONALLICENCE 773 0- Journal of Comparative Physiology B Springer Berlin Heidelberg 185/3(2015-04-01), 343-354 0174-1578 185:3<343 2015 185 360