METRICS USED FOR LANDSCAPES
 LARGEST PATCH INDEX: percentage of landscape accounted for by largest patch
 PATCH DENSITY: number of patches per 100 ha for a landscape
 MEAN PATCH SIZE: average patch size for a landscape
 PATCH SIZE STANDARD DEVIATION: population standard deviation for patch sizes of a landscape
 PATCH SIZE COEFFICIENT OF VARIATION: population coefficient of variation in patch size relative to the mean patch size for a landscape
 EDGE DENSITY: length of edge per hectare for a landscape
 LANDSCAPE SHAPE INDEX: ratio of sum of edge lengths to total area for a landscape measured against a circle standard
 AREAWEIGHTED MEAN SHAPE INDEX: average perimetertoarea ratio for a landscape, weighted by the size of its patches
 TOTAL CORE AREA INDEX: core area defined by specified edge distance from the patch perimeter for the entire landscape as a percentage of total landscape area
 MODIFIED SIMPSON’S DIVERSITY INDEX: proportional abundance of each patch type within the landscape
 MODIFIED SIMPSON’S EVENNESS INDEX: measurement of the distribution of area among patch types within the landscape
 INTERSPERSION AND JUXTAPOSITION INDEX: observed interspersion divided by maximum interspersion for the patch types in a landscape
METRICS USED FOR CLASSES
 PERCENTAGE OF LANDSCAPE: percentage of landscape accounted for a class
 LARGEST PATCH INDEX: percentage of class accounted for by largest patch
 PATCH DENSITY: number of patches per 100 ha for a class
 MEAN PATCH SIZE: average patch size for a class
 PATCH SIZE STANDARD DEVIATION: population standard deviation for patch sizes of a class
 PATCH SIZE COEFFICIENT OF VARIATION: population coefficient of variation in patch size relative to the mean patch size for a class
 EDGE DENSITY: length of edge per hectare for a class
 LANDSCAPE SHAPE INDEX: ratio of sum of edge lengths to total area for a class measured against a circle standard
 AREAWEIGHTED MEAN SHAPE INDEX: average perimetertoarea ratio for a class, weighted by the size of its patches
 MEAN CORE AREA INDEX: average of core areas defined by specified edge distance from the patch perimeter for the entire class as a percentage of total class area
 INTERSPERSION AND JUXTAPOSITION INDEX: observed interspersion divided by maximum interspersion for patches in a class
METRICS USED FOR PATCHES
 AREA: area of the patch in hectares
 PERIMETER: perimeter of the patch, including any internal holes in the patch
 SHAPE INDEX: ratio of sum of edge lengths to total area for a patch, measured against a circle standard
 FRACTAL DIMENSION: degree of complexity of patches based on a perimetertoarea ratio
