Table 1 Description of the metrics of the networks (A) and the features of the nodes (B) for the non-breeders and breeders’ Egyptian vultures in the study area
From: Resource predictability modulates spatial-use networks in an endangered scavenger species
(A) Network metrics | Level | Description |
|---|---|---|
Diameter | Network | The length (in number of edges) of the longest path through the network from one node to another between any two vertices |
Density | Network | The average probability that two nodes that are network neighbours are themselves neighbours of another node |
Degree | Nodes | The number of links joining a node to its neighbours |
Betweenness | Nodes | The number of shortest paths through the network from one node to another that passes through a given node (the highest values are also called hubs) |
(B) Nodes features | Classes (Acronym) | Â |
|---|---|---|
Land-use (Acronym) | Forest (FOR) | Cover (%) of forest per node |
Pastureland (PAS) | Cover (%) of pastureland per node | |
Scrubs (SCR) | Cover (%) of scrubs per node | |
Irrigated crops (IRR) | Cover (%) of irrigated crops per node (e.g., rice) | |
Non-irrigated crops (NIC) | Cover (%) of non-irrigated crops per node (e.g., wheat) | |
Permanent crops (TREE) | Cover (%) of permanent crops per node (e.g., olives) | |
Bare rock (ROC) | Cover (%) of bare rock per node | |
Urban areas (URB) | Cover (%) of urban areas per node | |
Others (OTH) | Cover (%) of other typologies of land uses per node | |
Ecological functions | Resources | Set of food sources (categorized in: landfills, extensive and intensive farms, and vultures’ restaurant |
Resting | When a node is used as roosting site | |
Breeding territorya | When a node has a known nest |