大小兰沟自然保护区兽类资源生态评价

Ecological Evaluation on th Wild Mammalian Resources in the Big-small Langou Nature Reserve

1998年3月底到5月,对四川省大小兰沟自然保护区兽类资源进行了调查,结果表明兽类有63种,分属7目25科51属63种。其中,东洋界有31种,广布种有22种,古北界有10种,国家一级保护动物有2种,国家二级保护动物有12种,我国特产动物有14种,列入IUCN红皮书名录的有8种,列入CITES附录Ⅰ的有7种、附录Ⅱ的有7种、附录Ⅲ的有8种。分析其区系特征,表现为东洋界种类占优势,珍稀兽类较多,特有种类比例较大。按生态类型分析,表现为小型兽类较多,水栖种类较少。按生境分析,以山地疏林灌丛区和阔叶林区的种类最丰富,而针阔混交林区和河谷疏林灌丛区的种类较少,水域环境种类最少。

The wild mammalian resources were investigated in the Big-small Langou natural reserve in Sichuan from the end of March to May in 1998. The result indicates that there are 63 species, belonging to 7 orders. 25 families and 51 genera respectively. Among them, 31 species belong to the Indomalaya, 10 species to the Palaearctic,and 22 species to the widespread distribution;2 species are categorized as the first priority, and 12 species as the second priority in China; 14 species are characteristic ones in China; 8 species are in INCN and 22 species in CITES. The faunal feature is that the Indomalaya species are dominant, the ratio of especial species is relatively bigger, and the rare mammals have comparatively greater quantity. The ecological types express for more small mammals, and fewer aquatic species. The habitat shows for the richest species in both the mountain-woodland brush and the broadleal forest, and the fewest in the aquatic region.