| Contents |
| We study $N$-dimensional mutualistic models in Biology with competitive-cooperative relations among participants. We compare the dynamical properties of this type of systems, described as complex networks. We observe how cooperation is a common fact to increase biodiversity, which it is known that, generically, holds for general mutualistic dynamical systems in Ecology. We also give mathematical evidence on how a cooperative species induces an increased biodiversity, even if the species is push to extinction. For this fact, we propose a necessary change in the model formulation which could explain this kind of phenomenon. We will point out some interesting open problems on dynamics and complex networks related to this kind of models. |
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