重庆库区陆生脊椎动物多样性

三峡工程重庆库区共有陆生野生脊椎动物439种。其中兽类有98种，鸟类有277种，爬行类34种，两栖类有30种。开县、奉节、巫山、丰都四县最为丰富，而渝北、巴南和云阳较低。由于库区开发早，人口压力大，原生植被保存很少，因而动物栖息的生境多样性贫乏，造成陆栖脊椎动物的种类少、旗舰种少，一些重要物种在库区消失，目前一些有重要研究、经济价值的物种残存在片段化的、面积很小的常绿阔叶林中；库区现有陆生脊椎动物多是一些与人类生产生活相关的种类，动物群落向着适应农田草灌和居民区生境的方向演化。

Diversity of terrestrial vertebrates in Chongqing Area of the Three Gorges Reservoir

species of terrestrial vertebrates have been found in Chongqing area of the Three Gorges Reservoir, including 98 species of mammals, 277 species of birds, 34 species of reptiles and 30 species of amphibians Among all 14 counties of Chongqing area of the Three Gorges Reservoir , Kaixian? Fengjie?Wushan and Fengdu are the richest in diversity of terrestrial vertebrates,while Banan?Yubei and Yunyang are the lowest.Because of intensive and long time agricultural practice and dense human population density,original vegetation has been destroyed seriously, little original forest exists in Three Gorges Reservoir area, which results in very lower habitat diversity suitable for terrestrial vertebrate, especially for flag species. Many rare species of mammals, such as tigers, have disappeared in Chongqing area of the Three Gorge Reservoir. Many species of important vertebrates are only found in several isolated original forests. Most of the terrestrial vertebrates, which are distributed in Chongqing area of the Three Gorge Reservoir, have fully adapted themselves to farmland and shrub habitat and many of them have become the commensalisms of human beings.