The origin of invasion of an alien frog species in Tibet, China  

作　　者：Supen WANG Liqing FAN Conghui LIU Jiaqi LI Xu GAO Wei ZHU Yiming LI 

机构地区：[1]Institute of Zoology, Chinese Academy of Sciences, Key Laboratory of Animal Ecology and Conservation Biology, Beijing 100101, China [2]Institute of Plateau Ecology, Tibet Agriculture and Animal Husbandry College, Bayi Town, Linzhi County, Xizang Province 860000, China [3]National Forest Ecosystem Observation & Research Station of Tibet Linzhi, Linzhi 860000, China [4]University of Chinese Academy of Sciences, Beijing 100049, China [5]Nanjing Institute of Environmental Sciences under Ministry of Environmental Protection of China, Nanjing 210042, China

出　　处：《Current Zoology》2017年第6期615-621,共7页动物学报（英文版）

摘　　要：Identifying the origins of alien species has important implications for effectively controlling the spread of alien species. The black-spotted frog Pelophylax nigromaculatus, originally from East Asia, has become an alien species on the Tibetan Plateau （TP）. In this study, we collected 300 individuals of P. nigromaculatus from 13 native regions and 2 invasive regions （including Nyingchi and Lhasa） on the TP. To identify the source region of the TP introductions, we sequenced portions of the mitochondrial cyt b gene. We sequenced a -600-bp portion of the mitochondrial cyt b gene to identify 69 haplotypes （124 polymorphic sites） in all sampled populations. According to the network results, we suggest that the P. nigromaculatus found on the TP was most likely originated from Chongqing by human introduction. Furthermore, we found that the genetic diversity was significantly lower for invasive than for native sites due to founder effects. Our study provides genetic evidence that this alien species invaded the cold environment of high elevations and expanded the distribution of P. nigromaculatus in China.

关 键 词：alien species AMPHIBIANS CHYTRIDIOMYCOSIS cold environment invasion genetics invasion route Sbetan Plateau. 

分 类 号：Q1[生物学—普通生物学]