The number of individuals with empty stomachs in a population (i.e. the proportion of individuals "running on empty") can be used as a simple index of instantaneous energy balance of some organisms such as lizards and fishes. In this study, we aimed to analyze the proportion of empty stomachs in 16 populations of five cnemidophorine species (Glaucomastix abaetensis, Ameivula ocellifera, Glaucomastix littoralis, Contomastix lacertoides and Ameivula nativo) along approximately 5,000 km the Brazilian coast. A total of 550 individuals had their stomach contents removed and identified in the laboratory. Our results showed that the proportion of individuals "running on empty" varied from 0 to 11.1% among the different populations and species. These proportions are suggestive that the five studied species would be in an overall positive energy balance at the time of the study.

中文翻译：

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Resta cnemidophorine蜥蜴是否在巴西沿岸空旷运行？

人口中空着肚子的人的数量（即“空着跑”的人的比例）可以用作某些生物（如蜥蜴和鱼类）瞬时能量平衡的简单指标。在这项研究中，我们旨在分析巴西海岸约5,000公里处的16种5种cnemidophorine物种（巴西绿盲虫，阿米古拉菌藻，Glaucomastix littoralis，Contomastixlactertoides和Ameivula nativo）的空腹比例。在实验室中，总共有550个人的胃内容物被去除并被鉴定出来。我们的结果表明，在不同的种群和物种中，“空旷奔跑”的个体比例从0到11.1％不等。