Boag B, Topham P B, Webster R
Int J Parasitol. 1989 Sep;19(6):681-5. doi: 10.1016/0020-7519(89)90047-7.
The horizontal distributions of infective larvae on pasture grazed by sheep have been investigated. Using Taylor's Power Law it was found that larvae had a more aggregated distribution in September than August, the Law index of aggregation being 1.97 and 1.89 for the 2 months, respectively. However, at each time the degree of aggregation remained fairly constant for a range of spacings between points from 5 to 30 m. These results suggest that Taylor's Power Law could be used as a basis for devising an efficient pasture sampling strategy. More data are required, however, to determine the extent to which aggregation of the larvae varies with time of the year.
已对绵羊放牧草地上感染性幼虫的水平分布进行了调查。利用泰勒幂法则发现,9月幼虫的分布比8月更为聚集,这两个月的聚集度法则指数分别为1.97和1.89。然而,每次在5至30米的一系列点间距范围内,聚集程度保持相当恒定。这些结果表明,泰勒幂法则可作为设计有效牧场采样策略的基础。然而,需要更多数据来确定幼虫聚集程度随一年中时间变化的程度。