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Study area location in Hunchun Nature Reserve in Northeast China and on the border of the Russian Far East, the Democratic People's Republic of Korea (DPR Korea). Our two scales of remote camera trap sampling design are also shown. The large grids are 3.6 × 3.6 km grids, and the small grids are 1.8 × 1.8 km subgrids. Inset shows the location of study area. Green area shows forest coverage
