Process-explicit simulations of European bison abundance in Eurasia from 21,000 years ago to 1500 CE

We simulated the abundance and range dynamics of the European bison in Eurasia from 21,000 years ago to 1500 CE using spatially explicit population models. We validated the models through rounds of pattern-oriented modelling to ensure that the models accurately replicated observed ecological patterns. These data represent a weighted mean of the best 25 models of European bison range dynamics selected by pattern-oriented modeling.

This multi-band raster has one layer for each 10-year timestep from 21,000 years ago to 1500 CE. Each layer is a spatially explicit representation of the European bison's range and abundance at that timestep.  These are provided as GeoTIFF files in a Lambert Azimuthal Equal Area projection centred on a reference latitude of 57.5°N and a reference longitude of 25°E with a resolution of 86.6 by 75.6 km. 

Grid cells with zero bison are potentially occupiable cells (not covered by ice sheets or ocean) with no bison occupancy. Grid cells marked NA are not valid occupiable cells at that time point, either because it is covered by glacial ice or because of the sea level.