Guocheng SHU,Ping LIU,Tian ZHAO,et al.Disordered Translocation is Hastening Local Extinction of the Chinese Giant Salamander[J].Asian Herpetological Research(AHR),2021,12(3):271-279.[doi:10.16373/j.cnki.ahr.200080]
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Disordered Translocation is Hastening Local Extinction of the Chinese Giant Salamander
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

2021 VoI.12 No.3
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Disordered Translocation is Hastening Local Extinction of the Chinese Giant Salamander
Guocheng SHU12 Ping LIU13 Tian ZHAO1 Cheng LI13 Yinmeng HOU14 Chunlin ZHAO14 Jie WANG1 Xiaoxiao SHU14 Jiang CHANG5 Jianping JIANG13* and Feng XIE13*
1 CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
2 Yibin University, Yibin 644000, Sichuan, China
3 University of Chinese Academy of Sciences, Beijing 100049, China
4 Sichuan University, Chengdu 610065, Sichuan, China
5 State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Chinese giant salamander genetic test translocation conservation wild population
Biodiversity is declining globally by an unprecedented extinction rate. This is especially true for amphibians, accounting for 24.3% of all threatened vertebrates. As the largest extant amphibian species in the world, wild populations of the Chinese giant salamander (Genus Andrias) (CGS) have decreased dramatically because of overexploitation and habitat degradation. Translocation has become an important strategy for restoring threatened wild populations worldwide. However, disordered translocation usually has negative effects on the native populations. We provide an overview of CGS translocation and show that disordered translocation can increase local population extinction. Nearly four times the estimated number of wild individuals have been released across China. There are three types of translocation used for CGS, namely, reinforcement, reintroduction and ecological replacement, the last of which accounts for over one-third of translocations. Our genetic screening revealed that most released individuals were not from local populations, with one to four lineages detected in every release site (n = 6). This disordered translocation can potentially reduce the genetic integrity of original populations. Hence, we suggest suspending current CGS translocation activities immediately, until more robust measures can be developed and implemented to improve the current translocation program, especially with respect to lineage identification and the identification of appropriate release sites.


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Last Update: 2021-09-25