Correlates of extinction risk in squamate reptiles: the relative importance of biology, geography, threat and range size

Aim
Evaluating the relative roles of biological traits and environmental factors that predispose species to an elevated risk of extinction is of fundamental importance to macroecology. Identifying species that possess extinction-promoting traits allows targeted conservation action before precipitous declines occur. Such analyses have been carried out for several vertebrate groups, with the notable exception of reptiles. We identify traits correlating with high extinction risk in squamate reptiles, assess whether these differ with geography, taxonomy and threats, and make recommendations for future Red List assessments.

Location
Global.

Methods
We collected data on biological traits and environmental factors for a representative sample of 1139 species of squamate reptiles. We used phylogenetically controlled regression models to identify general correlates of extinction risk, threat-specific correlates of risk and realm-specific correlates of risk. We also assessed the relative ...

Aim
评估生物特征与环境因素在物种灭绝高风险易感性中的相对作用，对宏观生态学具有根本重要性。识别具有灭绝促进特征的物种，可在种群急剧下降前采取针对性保护行动。此类分析已针对多个脊椎动物类群开展，但爬行动物是显著例外。本研究旨在识别与有鳞爬行动物（squamate reptiles）高灭绝风险相关的特征，评估这些特征是否因地理、分类学及威胁类型而异，并为未来红色名录评估提出建议。

Location
全球。

Methods
我们收集了1139种有鳞爬行动物代表性样本的生物特征与环境因素数据。采用系统发育控制回归模型（phylogenetically controlled regression models）识别灭绝风险的一般相关因素、威胁特异性相关因素及区域特异性相关因素，并评估了相对...