Group  Abbreviation  Metric  Unit  Observation  Formula 
Area  CA  Total (Class) area  Km^{2}  Sum the patches in all class areas or the fragments of native vegetation present in the area. 

Density and size  NUMP  Number of patches  Unit  Total number of patches in the vegetation class 

MPS  Mean patch size  Km^{2}  Sum of the total size of all patches divided by patch number 
 
PSSD  Patch size standard deviation  Km^{2}  Distribution of variance of patch size 
 
Edge  ED  Edge density  m・ha^{−1}  Quantity of length of edge (TE)relative to total area (CA) 

Shape  MSI  Mean shape index  adimensional  Measures the complexity of patch form. Is equal to 1 when all the patches are squares and increases with the growth of irregularity in the form of the patch 

Connectivity  MNN  Mean distance to nearest neighbor  meters  The mean nearest neighbor Euclidian distance between closest patches 

CONN  Connectivity  adimensional  Number of functional connections between all fragments over a determined distance, divided by the total number of possible connections between these fragments 
 
Diversity index  SDI  Shannons diversity index  adimensional  Estimate of the relative abundance and variability of the different types of vegetation 
