Using Data from Taiwan Roadkill Observation Network to Analyze Amphibians and Reptiles Roadkilled in Taiwan

• Main Authors: Hsiao-Chun Kuo, 郭小君
• Other Authors: Yi-Ju Yang
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/f52e9m

碩士 === 國立東華大學 === 自然資源與環境學系 === 106 === In recent, research of road kill on amphibians and reptiles increase in Taiwan. By records from Taiwan Roadkill Observation Network (Community of Road Kill), I analyzed the factors that may affect road kill, to help reduce the threat of road kill in future. I used data recorded from 2000 to 2016, including 2681 amphibians and 10,435 reptiles. I selected data of amphibians and reptiles from 2014 and 2015 in Taiwan Island to observe the changes in monthly records. The data of amphibians, Greater green snake and Swinhoe’s japalura were used to analyze the factors that affect road kill. I described the altitude range, habitat types, land use types, distance of nearest water body, roadside topography and roadside structures of data selected from Tainan, Taoyuan, Chiayi and Taitung. I find the numbers of amphibians recorded were affected by seasonal survey and their peak period is in spring and autumn. The peak period of reptile recorded is in summer. Records of Bufonidae, Ranidae, Dicroglossidae, Rhacophoridae, Greater green snake and Swinhoe’s japalura were concentrated in the altitude range of 0 to 400 meters.Most records of Bufonidae and Dicroglossidae were in agricultural habitat and habitat which is composed of forests and agricultural land. Most records of Ranidae were in agricultural habitat, forests habitat and habitat which is composed of forests and agricultural land. Most records of Swinhoe’s japalura were in habitat which is composed of forests and agricultural land. Most records of Rhacophoridae and Greater green snake were in forests habitat and habitat which is composed of forests and agricultural land. Records of amphibians and Swinhoe’s japalura tend to agricultural land mostly. The nearer water body was, the more records of Bufonidae, Ranidae, Dicroglossidae, Rhacophoridae, Greater green snake and Swinhoe’s japalura were.There were more records of amphibians in roads with buried-raised topography and walls, especially closed walls.There were more records in roads with ditch. Because some of amphibians use ditch as habitat, I suggest the roads with ditch will have higher amphibian roadkilled probability. However, probability of Greater green snake and Swinhoe’s japalura roadkilled are not increased in roads with ditch.