Out-degree of summarized networks inferred using different methods of constructing scalar time series from positional data of individual animals, using three data sets (Data 1, 2, 3) constructed using a modified Couzin model, each with different embedded inter-species interactions (intra-species interaction is present and assumed and so not tested for) to test the following three interaction hypotheses <i>H</i>_<i>i</i>.

D: deer; S: sheep; H1. D↔S: deer drives sheep and sheep drives deer; H2. D→S: deer drives sheep; H3. D ↮ S: no interaction between species. Interaction is assessed by the connectedness of the inferred interaction networks, in particular, the out-degree of intra-species network edges to inter-species networks edges. Bold font used if hypothesis supported: successful detection of the interaction. Timespan: number of hours within spatial data area pooled for analysis (GPS fix acquisition time = 1 h). k: number of nearest neighbours in the analysis, either all other animals, or all animals of same species.