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Why Nestedness in Mutualistic networks?
, Ceva H.
, Perazzo R.P.J.
, Devoto M.
, Medan D.
, Zimmermann M.
, Delbue A.M.
Journal of Theoretical Biology
, 2007. V. 249. No. 2. P. 307–313
Журнал с антэкологическими публикациями.
We investigate the relationship between the nested organization of mutualistic systems and their robustness against the extinction of species. We establish that a nested pattern of contacts is the best possible one as far as robustness is concerned, but only when the least linked species have the greater probability of becoming extinct. We introduce a coefficient that provides a quantitative measure of the robustness of a mutualistic system.