Area of Occupancy (AOO).
Calculates the Area of Occupancy of a species based on either known records or predicted distribution.
aoo(spData)
spData |
One of three options: 1) matrix of longitude and latitude (two columns) of each occurrence record; 2) matrix of easting and northing (two columns, e.g. UTM) of each occurrence record in meters; 3) RasterLayer object of predicted distribution (either 0/1 or probabilistic values). |
AOO is calculated as the area of all known or predicted cells for the species. The resolution will be 2x2km as required by IUCN.
A single value in km2 or a vector with lower confidence limit, consensus and upper confidence limit (probabilities 0.975, 0.5 and 0.025 respectively).
data(red.range) aoo(red.range)
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