Yun WANG,Jiayu LAN,Hongping ZHOU,et al.Investigating the Effectiveness of Road-related Mitigation Measures under Semi-controlled Conditions: A Case Study on Asian Amphibians[J].Asian Herpetological Research(AHR),2019,10(1):62-68.[doi:10.16373/j.cnki.ahr.180043]
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Investigating the Effectiveness of Road-related Mitigation Measures under Semi-controlled Conditions: A Case Study on Asian Amphibians
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

2019 VoI.10 No.1
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Investigating the Effectiveness of Road-related Mitigation Measures under Semi-controlled Conditions: A Case Study on Asian Amphibians
Yun WANG1*# Jiayu LAN12# Hongping ZHOU1 Lei GUAN1 Yudi WANG1 Yongshun HAN3 Jiapeng QU45 Syed Asifullah SHAH6 and Yaping KONG1
1 China Academy of Transportation Sciences, Beijing 100029, China
2 Jilin Agricultural University, Changchun 130118, China
3 Hunan University of Science and Technology, Xiangtan 411201, China
4 Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
5 Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining 810008, China
6 Department of Ornamental Horticulture and Landscape Architecture College of Horticulture, China Agricultural University, Beijing 100193, China
amphibian tunnels crossing structure drift fence highway roadside ditch road ecology
Road traffic is the main factor causing the decline in amphibian populations worldwide. The proper design of an amphibian tunnel is one of the most efficient measures to mitigate the negative impacts of road traffic on amphibians. However, no study has investigated the effectiveness of amphibian tunnels under semi-controlled conditions in Asian amphibians. Here, we selected two representative amphibian species, the Chinese brown frog, Rana chensinensis, and the Asiatic toad, Bufo gargarizans, which suffer the most severe road mortality along the roads in Northeast China. We placed experimental arrays of culverts of various sizes (diameters of 1.5, 1, and 0.5 m for circular culverts; side lengths of 1.5, 1, and 0.5 m for box culverts), and substrate type (soil, concrete, and metal) to examine the preferences of both species during the migratory season between May and September in 2016 and 2017. The results revealed that the Chinese brown frog preferred mid- and large-sized culverts as well as soil culverts. We concluded that culverts with a side length ≥ 1 m, lined with soil, and accompanied by a ≥ 0.4 m high guide drift fence and ≤ 45° gradient on the roadside ditch wall would best facilitate road crossings for both species and likely for other amphibian species in Northeast China.


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Last Update: 2019-03-25