red (version 0.1.0)

aoo: Area of Occupancy (AOO).

Description

Calculates the Area of Occupancy of a species based on either records or predicted distribution.

Usage

aoo(layer, longlat = NULL)

Arguments

layer

RasterLayer object representing the presence/absence map.

longlat

Matrix of longitude and latitude (two columns) of each occurrence record.

Value

A single value in km2.

Details

AOO is calculated as the area of all known or predicted cells (usually 2x2 km) for the species.

Examples

data(data.records)
data(data.sp)
aoo(data.sp, data.records)
aoo(data.sp)