Next, Step II in the procedure is to choose and adapt the network measure of interest. To illustrate, we chose three network measures 2 (degree, clustering coefficient, and betweenness centrality, Fig. ) commonly applied in network science. To account for the directed and weighted nature of the edges in our species-species network, we adapted these measures slightly. To be precise, the first measure, degree (ki), computes the sum of the weights of the edges connected to each node: