d the biology of populations. Trends foot Evol 21, 394-399 (2006). 9. Bascompte. J. Disentangling the web of life. Science 325, 416-419(2009). 10. Suithara,G.8Ye, H.Coopemtive network dynamics.Nature458,979-980(2009). 11. Dunne, J.A.ef at. Compilation and network analyses of Cambrian (cod webs.PLoS Blo