Area/Density/Edge Metrics• Patch radius of gyration –

measure of avg distance organism can move within a patch before patch bnd(extent)

• Correlation length

(Area-weighted mean radius of gyration) –class or landscape level; each patch weighted by A.

Physical connectedness

• Largest patch index (LPI) – % landscape comprised of single largest patch (class or landscape level)

Shape Metrics• Shape index

• Measures the complexity of patch shape; compare to std shape (square) of same size

• P:A dependency resolved

• P (patch) / P (square)

Core Area Metrics• Core area

Shape effect – inverse

Area effect - positive

Edge depth effect – inverse

- Confounding effects

Advantage = integrative

Disadvantage = confounds

Aggregation Metrics

Connectivity Metrics

– Connectivity (-index of nodes and linkages; range 0 to 1)

•  

•  

• where: L = number of links in the network

• V = number of nodes in the network

)2(3max

V

L

L

L

Point Pattern Analysis

• Kernel estimators