Research status and challenges of road impacts on wildlife in China

doi:10.17520/biods.2022209

Abstract

Abstract:

Background & Aim: Habitat loss and fragmentation, driven by expansion of global transport infrastructure networks, has become one of the significant factors contributing to the decline of biodiversity. Many studies on the impact of roads on wildlife have been conducted abroad, yet only a modest number of studies have been conducted in China.

Summary: This review summarizes 144 case studies conducted in China by the year 2021 and 210 posts relating to roadkill from Sina Microblog. The impacts of roads on wildlife in China were divided into seven types: habitat loss, habitat fragmentation, avoid or gather at the roadside, hinder or promote migration, population isolation, wildlife crossing structures and roadkill. Recent, relevant studies in China are mainly concentrated in Hoh Xil, Changbai Mountains, and Qinling Mountains. The main species studied are ungulates on Tibetan Plateau, the giant panda (Ailuropoda melanoleuca) and Asian elephant (Elephas maximus).

Perspectives: Collecting data on the impacts of roads on wildlife, is critical to inform interdisciplinary and multi-departmental management and conservation solutions of road-wildlife conflicts in China. Social media platforms can be important sources of data on roadkill occurrences.

Key words: highway, transportation, habitat, wildlife crossing structures, roadkill, citizen science, road ecology

Abudusaimaiti Maierdiyali, Yun Wang, Shuangcheng Tao, Yaping Kong, Hao Wang, Zhi Lü. Research status and challenges of road impacts on wildlife in China[J]. Biodiv Sci, 2022, 30(11): 22209.

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URL: https://www.biodiversity-science.net/EN/10.17520/biods.2022209

https://www.biodiversity-science.net/EN/Y2022/V30/I11/22209

Figures/Tables 7

Fig. 1 A diagram of the impact of road on wildlife. The red arrows show the changes before and after the road was built, and the blue arrows show the movement of the wildlife. A, Road construction causes habitat loss and decrease of wildlife population; B, The network of road causes habitat fragmentation; C, Road disturbance causes wildlife to keep a distance from the road; D, Road affect migration route of wildlife; E, Wildlife use crossing structures; F, Wildlife cross roads might cause roadkill.

Fig. 2 Research content distribution of published articles on wildlife and road

Fig. 3 Annual distribution of published articles on wildlife and road. a, Impact on habitat; b, Impact on animal behavior; c, Wildlife crossing structures; d, Roadkill.

Fig. 4 Research area distribution of published articles on wildlife and road. The number of research area associated with only one article is large, so they’re not shown in this figure.

Fig. 5 Focal species distribution of published articles on wildlife and road. The number of focal species associated with only one article is large, so they’re not shown in this figure.

Fig. 6 The annual and monthly distribution of roadkill records from Sina Microblog data. Most records are after 2019, and in August and September.

Fig. 7 The distribution of taxon of roadkill recorded from Sina Microblog data. Mammals and reptiles have the most records, birds also have some records, insects and amphibians have fewer records. There are 7% records that didn’t point out species and used “animal” to replace them.

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