Baek Hae-Jun, Cheong Eujin, Kim Youngha, Koo Kyo Soung, Kim Su-Hwan, Park Chang-Deuk, Yoon Ju-Duk
Invasive Alien Species Team, Bureau of Survey and Safety Research, National Institute of Ecology, Seocheon 33657, Republic of Korea.
National Migratory Birds Center, National Institute of Biological Resources, Incheon 22689, Republic of Korea.
Animals (Basel). 2024 Sep 10;14(18):2626. doi: 10.3390/ani14182626.
The Chinese striped-necked turtle , introduced into South Korea presumably in 2012, is considered an invasive alien species owing to its devastating impact, including hybridization with the native protected species Reeves' turtle . Recently, the presence of has been confirmed throughout the country, and several sympatric areas with have been reported. Thus, field surveys were conducted at 47 sites across and habitats in South Korea to determine the extent of hybridization. Five sympatric sites were confirmed, and hybrid individuals were identified at four sites. Genetic analyses ( and ) of two individuals from Jeju Island confirmed maternal and paternal lineages. Hybridization presumably does not occur under natural conditions, and the hybrids likely originated from captive breeding. This study identifies for the first time the habitats of and its hybrids in the wild of South Korea. The management measures proposed in the current study could be of value for the conservation of the native species; however, our study did not include reproductive monitoring, and there is a need for such surveys as well as for systematic management of non-native turtles introduced into South Korea.
中国条颈龟大概于2012年被引入韩国，由于其具有破坏性影响，包括与本土受保护物种中华花龟杂交，被视为外来入侵物种。最近，已证实其在韩国全国范围内存在，并且有报道称出现了几个与中华花龟同域分布的区域。因此，在韩国的中华花龟和中国条颈龟栖息地的47个地点进行了实地调查，以确定杂交的程度。确认了5个同域分布地点，在4个地点发现了杂交个体。对济州岛的两个个体进行的基因分析（线粒体DNA和微卫星）证实了母系中华花龟和父系中国条颈龟的谱系。杂交可能不会在自然条件下发生，这些杂交个体可能源自圈养繁殖。本研究首次确定了韩国野外中华花龟及其杂交个体的栖息地。本研究中提出的管理措施可能对本土物种的保护具有价值；然而，我们的研究未包括繁殖监测，因此需要进行此类调查以及对引入韩国的非本土龟类进行系统管理。
