澜沧江漫湾电站水库地区两栖动物的考察研究

漫湾电站地区共有两栖类２ 目８ 科１８ 属３８ 种。区系特点是： （１） 物种很丰富， 占中国两栖类种数１３－６２ ％ ， 超过２０ 个省区， 超过云南红河州， 而与西双版纳相等， 是中国两栖类最丰富的地区之一， 也是云南种类最多的地区；（２） 全部属东洋界种类； （３） 西南区种类占绝对优势， 有２６ 种， 占６８－４２％ ； （４） 华中区及华中华南种类很少， 共３ 种； （５） 锄足蟾科种类特多， 有１２ 种； （６） 特有种很多， 有漫湾特有７ 种， 云南特有１６ 种，中国特有１３ 种以上。垂直分布可分为河谷低山带， 海拔８００ － １ ５００ｍ ； 中山带， 海拔１ ５００ － ２ ２００ｍ ； 高山带，２ ２００ －２ ８００ｍ ；２ ８００３ ２９１ｍ 的山顶带。泽蛙、双团棘胸蛙及云南小狭口蛙为本地区优势种。稀有种多， 应加强保护； 红瘰疣螈为国家Ⅱ级保护动物。

AN INVESTIGATION ON AMPHIBIANS NEARBY THE RIVER RESERVOIR OF MANWAN HYOROELECTRIC STATION ON LANCANG JIANG,YUNNAN

Expeditions of amphibians were made from 1981 to 1984 and 1998,nearby the river resevoir of Manwan Hydroelectric Station on Lancang Jiang,Yunnan.There are 38 species amphibians in this region,belonging to 2 orders,8 families and 18 genera.In this region,amphibian faunal specifications of zoogeography are as below: 1 Number of amphibian species is more abundant than Taiwan,Gansu,Hebei,Henan,Shaunxi,Shanxi,Jiangsu and Liaoning provinces;about equals to Xishuang Banna(38 species)and Honghe(36 species) of Yunnan. 2 All species belong to Oriental affinity. 3 Species of Southwest China Region are dominant,there are 20 species,occupying 68 42% of total species;Species of South China are 8 species,occupying 21 05% 4 Species of Central China Region are less in number,only I species,occupying 2 6%;distribution both Central China and South China Region are 3 species,occupying 7 89% 5 The species of familly Pelobatidae are more,12 species, occupying 31 58% of total species 6 The endemic species are more.There are 8 endemic species to Manwan region,occupying 21 05% of total species. Vertical distribution of amphibians in this region may be divided into 4 zones. In this report,conservation of amphibians is also discussed.