Iberian Lynx Captive Breeding Centre "El Acebuche", Parque Nacional de Doñana, Matalascañas, 21760, Huelva, Spain.
School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Southwell, NG25 0QF, Nottinghamshire, United Kingdom.
Sci Rep. 2020 Feb 27;10(1):3630. doi: 10.1038/s41598-020-60577-3.
Reintroduction of captive-bred individuals into the wild is an important conservation activity. However, environmental conditions can influence developmental programming, potentially causing metabolic disorders in adults. These effects are investigated here for the first time in an endangered species. Using body weight and feed intake data for Iberian lynx (Lynx pardinus) (n = 22), we compared the growth of captive versus wild born and/or reared individuals. Captive-born individuals gained weight as a function of calorie intake, unlike wild-born individuals. When compared with females reared in the wild, captive-reared females achieved a larger body size, without evidence of obesity. Captivity-associated changes to metabolic programming may compromise survival in the wild if an increased body size incurs a greater energy requirement. Large body size may also confer a competitive advantage over smaller, wild-born individuals, disrupting the social organisation of existing wild populations, and inferring long-term implications for the phenotypic composition of wild populations.
圈养个体的再引入是一项重要的保护活动。然而，环境条件会影响发育编程，可能导致成年个体出现代谢紊乱。在这里，我们首次在濒危物种中研究了这些影响。使用伊比利亚猞猁（Lynx pardinus）（n = 22）的体重和采食量数据，我们比较了圈养和野生出生和/或饲养个体的生长情况。与野生出生的个体不同，圈养出生的个体的体重随着卡路里摄入量的增加而增加。与在野外饲养的雌性相比，圈养饲养的雌性体型更大，没有肥胖的证据。如果更大的体型导致更高的能量需求，与圈养相关的代谢编程变化可能会影响在野外的生存能力。更大的体型也可能会给体型较小、野生出生的个体带来竞争优势，扰乱现有野生种群的社会组织，并对野生种群的表型组成产生长期影响。
