Carbone Chris, Cowlishaw Guy, Isaac Nick J B, Rowcliffe J Marcus
Institute of Zoology, Zoological Society of London, Regent's Park, London NW1 4RY, United Kingdom.
Am Nat. 2005 Feb;165(2):290-7. doi: 10.1086/426790. Epub 2004 Dec 22.
Day range (daily distance traveled) is an important measure for understanding relationships between animal distributions and food resources. However, our understanding of variation in day range across species is limited. Here we present a day range model and compare predictions against a comprehensive analysis of mammalian day range. As found in previous studies, day range scales near the 1/4 power of body mass. Also, consistent with model predictions, taxonomic groups differ in the way day range scales with mass, associated with the most common diet types and foraging habitats. Faunivores have the longest day ranges and steepest body mass scaling. Frugivores and herbivores show intermediate and low scaling exponents, respectively. Day range in primates did not scale with mass, which may be consistent with the prediction that three-dimensional foraging habitats lead to lower exponents. Day ranges increase with group size in carnivores but not in other taxonomic groups.
日活动范围（每日移动距离）是理解动物分布与食物资源之间关系的一项重要指标。然而，我们对不同物种间日活动范围变化的了解有限。在此，我们提出一个日活动范围模型，并将预测结果与对哺乳动物日活动范围的全面分析进行比较。正如先前研究中所发现的，日活动范围与体重的1/4次幂呈近似比例关系。此外，与模型预测一致，不同分类群的日活动范围随体重变化的方式存在差异，这与最常见的饮食类型和觅食栖息地有关。食肉类动物的日活动范围最长，体重缩放比例最陡。食果动物和食草动物的缩放指数分别处于中等和较低水平。灵长类动物的日活动范围与体重不成比例，这可能与三维觅食栖息地导致较低缩放指数的预测相符。食肉动物的日活动范围随群体规模增大而增加，但在其他分类群中并非如此。
