对贵州大洞口内的软体动物、节肢动物和脊椎动物进行了观察和采集，共获标本510号，隶属3门6纲11目17科。且对动物群落进行了研究，结果多样性指数最高是群落A(2.1616)，群落D的多样性指数则为零；相似性指数最高是群落B-C(0.5632)，而群落B-D和C-D两者的相似性指数均为零。此外，还对洞穴动物的季节动态和空间分布进行了分析。%The communities of some animals in Dadongkou cave in Kaiyang County, Guizhou Province were studied. Totally 510 samples were collected, belonging to 3 phyla 6 classes 11 orders 17 families. They were divided into 4 communities, as follows:rn A. Tortaxis mandarinus+Myrmeleon communityrn B. Diestrammena marmorata+Bothropolys asperatus communityrn C. Diestrammena marmorata+Rhinolophus rex communityrn D. Cyprinus carpio communityrn Diversity and dominance indexes of each community and similarity index between every two communities were calculated. The highest index of diversity was found in community A(2.1616) and community D was zero. The highest index of dominance was community D(1) and community A (0.1603) were the lowest. The similarity index between community B-C(0.5632) was the highest, both community B-D and C-D were zero. Descending trend was shown in the numbers of groups and individuals in winter and spring.
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