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Fig. 3 | Crime Science

Fig. 3

From: Using crime script analysis to elucidate the details of Amur tiger poaching in the Russian Far East

Fig. 3

Accessibility to taiga from road network. To determine the level of accessibility created by roads OpenStreetMaps (OSM) was used to manually locate and digitize roads that are visible on satellite images. Changes were saved under the highway = track tag, which is defined by the OSM guide to be used for roads that are used for natural resource extraction. After the digitization of all the logging roads in Primorye, GIS software was used to calculate the total length of logging roads. From the data compiled from digitizing, logging roads span about 16,000 km2 in Primorye. Using the method described in Slaught et al. (2016), an addition of a 5 km buffer zone was added to all of the logging roads, which provides an accessibility level that hunters may have into the taiga (assuming a hunter can walk 10 km in one day). Upon the addition of 5 km buffers, the total accessible area increases to about 83,539 km2. By dividing this value by the total area of Primorye, it can be deduced that roughly 52% of the taiga in Primorye is easily accessible to hunters/poachers

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