影响蛇岛蝮蛇树栖分布相关因子的分析

目的了解影响蛇岛蝮蛇树栖分布的7个相关因子,探讨其间的关系。方法2006年10月12~15日,在蛇岛二沟南坡、北坡、西坡,测定不同年龄组蛇岛蝮蛇树栖环境的7个相关因子,进行比较分析。结果三种树栖环境中,老成体、成体、亚成体、幼体对因子的选择基本都有差异;不同年龄组的树栖高度与冠幅负相关不显著,与枝长(成体和亚成体中)负相关不显著,与其它正相关不显著;老成体和成体在林中和林缘,对树栖高度的选择差异显著,亚成体和幼体差异不显著;相同年龄组两两因子间线性关系明显。结论影响蛇岛蝮蛇树栖分布的因子具有一定的规律性。

The analysis on correlative factors of the Gloydius shedaoensis Zhao dendrocola distribution

Objective To understand 7 correlative factors of the Gloydius shedaoensis Zhao dendrocola distribution,the relation between factors was discussed.Methods From October 12 to 15 in 2006,mensurated on 7 the Gloydius shedaoensis Zhao dendrocola environment correlative factors of different ages in the second gully.Results Through comparative analysis,factors different ages elected were basically different in 3 dendrocola environment;There was not notable negatively correlation with dendrocola height and crown width,with dendrocola height and branch length(the adult and the minor) in different ages and correlation between dendrocola height and other factots was notably positive;Dendrocola height the affer and the adult elected was significant different and which the minor and the infancy was little difference in forest zone and forest border;linear relation between factors was obvious.Concluson Correlative factors of the Gloydius shedaoensis Zhao dendrocola follow certain rules.