Road development in Asia: Assessing the range-wide risks to tigers.

ABSTRACT: Roads are proliferating worldwide at an unprecedented rate, with potentially severe impacts on wildlife. We calculated the extent and potential impacts of road networks across the 1,160,000-km², 13-country range of the globally endangered tiger (Panthera tigris)-a conservation umbrella species. We found that roads were pervasive, totaling 134,000 km across tiger conservation landscapes (TCLs), even in tiger priority sites and protected areas. Approximately 43% of the area where tiger breeding occurs and 57% of the area in TCLs fell within the road-effect zone. Consequently, current road networks may be decreasing tiger and prey abundances by more than 20%. Nearly 24,000 km of new roads will be built in TCLs by 2050, stimulated through major investment projects such as Chi

SUBMITTER: Carter N 

PROVIDER: S-EPMC7190336 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature