Ra Nam-Yong, Park Daesik, Cheong Seokwan, Kim Nam-Sin, Sung Ha-Cheol
Department of Biology, Kangwon National University, Kangwon 200-701, South Korea.
Zoolog Sci. 2010 May;27(5):396-401. doi: 10.2108/zsj.27.396.
We used field surveys and statistical models to investigate habitat associations of the endangered gold-spotted pond frog (Rana chosenica). The characteristics of its habitat are of great importance for effective conservation for this declining species in western South Korea. We evaluated a priori models that incorporated biotic and abiotic variables at the pond and landscape scales. The best-ranked model predicts that gold-spotted pond frogs will be more abundant at sites with fewer introduced American bullfrogs (Rana [= Lithobates] catesbeianus) and greater coverage of shallow, vegetated water. Our study leads us to conclude that limiting the spread and abundance of bullfrogs has the potential to aid conservation of the gold-spotted pond frog in our region.
我们通过实地调查和统计模型来研究濒危物种金线蛙(Rana chosenica)的栖息地关联。其栖息地特征对于有效保护韩国西部数量不断减少的该物种至关重要。我们评估了在池塘和景观尺度纳入生物和非生物变量的先验模型。排名最佳的模型预测,在引入的美国牛蛙(Rana [= Lithobates] catesbeianus)数量较少且浅水区有更多植被覆盖的地点,金线蛙的数量会更多。我们的研究使我们得出结论,限制牛蛙的扩散和数量有可能有助于保护我们地区的金线蛙。