Network metrics to inform spatial connectivity in movement ecology
The application of network analyses in movement ecology is a burgeoning research area. Spatially discrete data from passive, array-based tracking methods naturally lend themselves to network approaches. Monitoring stations, such as acoustic telemetry receivers or Passive Integrated Transponder (PIT) tag readers can be thought of as nodes in a network, with the movements of animals between stations comprising the network edges. Network metrics can then be extracted across the network to inform locations of importance in the movement networks of individuals or groups or to explore spatio-temporal patterns in arrival and departure of numerous individuals to inform analyses of sociality.
The environmental drivers influencing the movement networks of reef sharks in the British Indian Ocean Territory - led by Mike Williamson