With CoordinateCleaner r package:
- Presences from 1960 onwards
- Eliminated occurences in urban polygons (To avoid cultivars)
- Eliminated prescences in Country, county or regions centroids (Known way to create coordinates of occurrences where there are no known coordinates)
- Eliminated equal lat and long
- Eliminated environmental and geografical outliers
With spThin
- Made sure that presences are at least 5 kms form each other (Spatial Autocorrelation)