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Landscape and local correlates with two green tree-frogs, Rhacophorus (Amphibia: Rhacophoridae) in different habitats, central Japan
Landscape and Ecological Engineering ( IF 2 ) Pub Date : 2020-01-09 , DOI: 10.1007/s11355-019-00406-6
Xiaojun Zheng , Yosihiro Natuhara

Changes in land-use and local factors have strong influences on amphibian distributions. However, the effects of both combined factors on assemblages are still unclear. The green tree-frogs, Rhacophorus, are sensitive to differences in landscape fragmentation. Herein, two species of Rhacophorus schlegelii and Rhacophorus arboreus have been surveyed, along the ecological gradient ranging from paddy-dominated plains to forest-dominated mountains (located in Toyota, Okazaki, and Shinshiro, central Japan). The effects of landscape and local factors on the existence of the above frogs were investigated using generalized linear models (GLMs); the Akaike Information Criteria (AIC) were used for model selection. The lowest AIC for R. schlegelii and R. arboreus were obtained at a 250-m-radius and 500-m-radius buffers, respectively. Habitat selections of each species showed distinct results in the paddy-field vs. ponds group. Nevertheless, both species exhibited a high abundance with increasing elevation and forest cover. At the local level, R. schlegelii displayed positive relationships with the presence of trees and the proportion of embankment vegetation. Our findings demonstrate that each species responded to various landscape scale and spatial composition, habitat, and species-dependent achievements of appropriate management actions to improve restoration practices are required.

中文翻译:

与日本中部不同栖息地的两只绿树蛙Rhacophorus(Amphibia:Rhacophoridae)的景观和局部相关性

土地利用和当地因素的变化对两栖动物的分布有很大的影响。但是,这两个组合因素对组合的影响仍然不清楚。绿色的树蛙Rhacophorus对景观破碎化的差异敏感。在这里,已经对沿着稻田为主的平原到森林为主的山脉(位于丰田,冈崎和日本中部新四郎)的生态梯度,对两种物种的Rhacophorus schlegeliiRhacophorus arboreus进行了调查。使用广义线性模型(GLM)研究了景观和局部因素对以上青蛙的存在的影响。Akaike信息标准(AIC)用于模型选择。schlegelii的最低AICR. and R. arboreus分别在250 m半径和500 m半径的缓冲液中获得。在水田对池塘组中,每个物种的生境选择显示出不同的结果。然而,随着海拔和森林覆盖率的增加,这两个物种都表现出很高的丰度。在地方一级,R。schlegelii与树木的存在和路堤植被的比例呈正相关。我们的研究结果表明,每个物种对各种景观规模和空间组成,栖息地以及依赖物种的成就做出响应,都需要采取适当的管理措施来改善恢复实践。
更新日期:2020-01-09
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