Figure 4
From: Land-use change is associated with multi-century loss of elephant ecosystems in Asia

Flow chart of study. (a) Input variables used in training and initial evaluation include the SRTM digital elevation model (DEM) and 20 LUH2 variables for a total of 21 variables; input variables for benchmark variables include DEM and 11 other datasets (see Table S1). (b) Ecological niche model constructed. (c) Comparison of model results for the whole range and by country/territory to evaluate degree of agreement (see supplementary text for results). (d) Model runs for each selected year. (e) Binary maps created for each year. (f) Quantification of extent and fragmentation of habitat for the entire region across each time point, by country/territory for the years 1700 and 2015, and for areas within 100 km of the extant range for 1700 and 2015.