Comparison of hand drawn vs. modelled species distribution map. Hand-drawn range map (a) used in many continental studies with (b), a modeled species distribution for Cycanolyca viridicyanus in southwestern Peru (Vilcabamba). National protected areas (white), and department boundaries (black lines) and elevation as backdrop.
Swenson et al. BMC Ecology 2012 12:1 doi:10.1186/1472-6785-12-1