Preface; 1. Graphs as structure in the ecological context; 2. Shapes of graphs: trees to triangles; 3. Species interaction networks; 4. Trophic networks: structure, partitioning, and dynamics; 5. Species associations, communities, and graphs of social structure ; 6. Competition: hierarchies and reversals; 7. Mutualism, parasitism, and bipartite graphs; 8. Temporal or time-only graphs; 9. Spatial graphs; 10. Spatio-temporal graphs; 11. Graph structure and system function: graphlet methods; 12. Synthesis and future directions; Visual glossary; References; Index; Appendix. sakriti opis