Thompson Lindy J, Brown Mark, Downs Colleen T
School of Life Sciences, University of KwaZulu-Natal, Private Bag X01, Pietermaritzburg, 3209, South Africa,
J Comp Physiol B. 2015 Apr;185(3):343-54. doi: 10.1007/s00360-015-0888-6. Epub 2015 Jan 31.
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 (~12 g) 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.
关于长期圈养对鸟类生理变量影响的种内研究较少，样本量小且结果相互矛盾。然而，许多生理学研究使用长期圈养的鸟类，假定结果适用于野生种群。在此，我们研究了长期圈养对一种相对较小（约12克）的南部非洲特有鸟类——海角绣眼鸟（Zosterops virens）各种生理指标的影响。与季节相比，长期圈养对动物整体基础代谢率（BMR）和体重（Mb）的影响更大，而质量比BMR、标准和基础动物整体以及质量比蒸发失水（EWL）和呼吸商（RQ），主要受季节影响，长期圈养的影响较小。因此，我们提醒，长期圈养鸟类的动物整体BMR和Mb不应被用作野生种群的代表，并且在比较野生和长期圈养鸟类的EWL和RQ时，应考虑研究鸟类的来源。
