Functional diversity of snakes is explained by the landscape composition at multiple areas of influence

Roadkill and landscape compsition affect snakes at diferent spatial scales, depending on the functional trait value of the species, which is reflected in the functional diversity indices at the assemblage level. This study evaluated the effect of roads and landscape composition on snakes´functional diversity at different areas of incluence (250, 500, 1000, and 2000 m buffer areas). We surveyed snakes using transects on the road and adjacent areas on 13 landscapes along the road. We evaluated the effect of 16 landscape metrics at six land cover classes on the snake´s functional diversity at four different areas of influence (from 250 to 2000 m around the sampled sites).