Food web adjacency list for France river dataset

Adjacency list representing all feeding interactions for the France river dataset, as identified by a literature review of gut content analyses. 'Parent' column represents the source of the interaction. 'Child' column represents the target of the interaction. 'Sign' represents the effect of the Parent species on the Child species. Since feeding interactions are +/-, each predator-prey pair will be represented by two rows: one for the negative effect of predator on prey, and one for the positive effect of prey on predator