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机构地区:[1]贵州师范大学生命科学学院,贵州贵阳550001
出 处:《贵州师范大学学报(自然科学版)》2011年第3期3-8,共6页Journal of Guizhou Normal University:Natural Sciences
基 金:国家自然科学基金(N:30560024);贵州省基金(黔科合J字[2008]2013号);贵州省教育厅自然科学基金(黔科教2006205)
摘 要:2009年7月对施秉屯上洞内的动物进行了调查,共获动物标本454号,隶属3门9纲16目19科20种(或类群)。该洞内的动物群由3个动物群落组成。经数理统计分析,群落多样性、均匀性、优势度和群落间相似性指数最高的分别是黑暗带群落(1.554 5)、有光带群落(0.779 0)、弱光带群落(0.505 7)以及有光带群落和黑暗带群落(0.624 9)。通过对群落多样性与部分环境因子的相关性分析,结果显示物种数(S)与湿度(H)和温度(AT)分别呈极显著的正相关和极显著的负相关(双尾显著性检验≤0.01);群落优势度(C)与土壤中镁的含量(SMg)呈显著的正相关(双尾显著性检验≤0.05)。由此说明在该洞内影响群落多样性变化的主要环境因子是湿度(H)和温度(AT),以及重金属元素镁(Mg)。In July 2009, this paper studied on animals in Tunshang cave of Shibing County, Guizhou Province. The collected samples were 454, belonging to 3 phyla, 9 classes, 16 orders, 19 families and 20 groups. There are 3 animal communities in this cave. According to mathematical and statistical analysis, the communities containing the highest indexes of diversity, evenness, dominance and similarity were the dark belt community ( 1. 554 5 ) , the light belt community (0. 779 0) , the reflection light belt community (0. 505 7) and the light belt community and dark belt community (0. 624 9 ) respec- tively. The results of correlation analysis between community diversity and environmental factors showed that the humidity (H)had the significantly positive correlation with number of species (S), and the air temperature (AT) had the significantly negative correlation with number of species (S), whose 2-tailed significant test is at the ≤0. 01 level. Moreover, the content of Mg in soil had the significantly positive correlation with the richness of species( C), whose 2-tailed significant test is wat the ≤0. 05 level. So these results indicated that humidity (H), air temperature (AT) and Mg were the important factors influencing change of animal community diversity in this cave.
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