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http://dx.doi.org/10.11614/KSL.2014.47.3.194

The Relationship between the Time of Breeding Migration of the Gori Salamander (Hynobius yangi) and Climate Factors  

Kim, Ja-Kyoung (Department of Biology, Kangwon National University)
Park, Daesik (Division of Science Education, Kangwon National University)
Lee, Heon-Ju (Department of Biology, Kangwon National University)
Jeong, Soo-Min (Department of Biology, Kangwon National University)
Kim, Il-Hun (Department of Biology, Kangwon National University)
Publication Information
Korean Journal of Ecology and Environment / v.47, no.3, 2014 , pp. 194-201 More about this Journal
Abstract
To elucidate which climate factors and what periods affect the time of breeding migration of Gori salamanders (Hynobius yangi), we have investigated relationships between the 5-years breeding monitoring data from 2006 to 2010 which had obtained in both natural and translocated breeding sites at Bongdae mountain, Gijang-gun, Busan-si and the matched climate data obtained from the weather station, approximately 25 km apart from the sites. Mean average and mean lowest temperatures during one month before the first breeding migration were related with the time of first female migration in the translocated site. Mean temperature variation and mean precipitation during 60~120 days before the first breeding migration affected the time of 30% male appearance at the natural site and the time of 30% female appearance at both natural and translocated sites. Climate factors were more closely related with female appearance than male and at the translocated site than at the natural site. Our results show that changes in mean temperature variation and mean precipitation rather than mean average temperature might more significantly affect the breeding migration of salamanders, female breeding migration is more closely related with climate factors, and the salamanders translocated could be more affected by climate changes than those in natural populations.
Keywords
Gori-salamander; climate change; breeding migration; monitoring; climate factor;
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