Table 1 Social network metrics used for comparison of road and forest metrics and for regression analyses.

Density⁸⁴ (global measure)

The proportion of all possible edges that are present in a network. Used to assess group connectedness.

Weighted Degree Centrality⁸⁴

The sum of the weights of the edges connected to an actor i. Used to assess “importance” of an individual within a group based on all their ties to other individuals.

Betweenness⁸⁴

The sum of the edge weights from the geodesic (shortest) paths connecting two nodes that pass through an actor i. Used to assess the “importance” of an individual based on their role in connecting other pairs of individuals.

Closeness⁸⁴

The inverse of the sum of the geodesic distances from actor i to all the other actors in a network. Used to assess the “importance” of an individual based on how their position within a network allows them to quickly interact with other individuals.

Eigenvector Centrality⁶⁰

The composite centrality scored based on principal eigenvector values provided by the adjacency matrix of a graph; this measure takes into account both a node’s and that node’s connections’ eigenvalues. Used to assess an individual’s “importance” in the network based on their own centrality and the centrality of their network connections.