Artículo
Global structural stability and the role of cooperation in mutualistic systems
Autor/es | Portillo Fernández, José Ramón
Soler Toscano, Fernando Langa Rosado, José Antonio |
Departamento | Universidad de Sevilla. Departamento de Matemática Aplicada I (ETSII) Universidad de Sevilla. Departamento de Filosofía y Lógica y Filosofía de la Ciencia Universidad de Sevilla. Departamento de Ecuaciones Diferenciales y Análisis Numérico |
Fecha de publicación | 2022 |
Fecha de depósito | 2022-06-28 |
Publicado en |
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Resumen | Dynamical systems on graphs allow to describe multiple phenomena from different areas of Science. In particular, many complex systems in Ecology are studied by this approach. In this paper we analize the mathematical ... Dynamical systems on graphs allow to describe multiple phenomena from different areas of Science. In particular, many complex systems in Ecology are studied by this approach. In this paper we analize the mathematical framework for the study of the structural stability of each stationary point, feasible or not, introducing a generalization for this concept, defined as Global Structural Stability. This approach would fit with the proper mathematical concept of structural stability, in which we find a full description of the complex dynamics on the phase space due to nonlinear dynamics. This fact can be analyzed as an informational field grounded in a global attractor whose structure can be completely characterized. These attractors are stable under perturbation and suppose the minimal structurally stable sets. We also study in detail, mathematically and computationally, the zones characterizing different levels of biodiversity in bipartite graphs describing mutualistic antagonistic systems of population dynamics. In particular, we investigate the dependence of the region of maximal biodiversity of a system on its connectivity matrix. On the other hand, as the network topology does not completely determine the robustness of the dynamics of a complex network, we study the correlation between structural stability and several graph measures. A systematic study on synthetic and biological graphs is presented, including 10 mutualistic networks of plants and seed-dispersal and 1000 random synthetic networks. We compare the role of centrality measures and modularity, concluding the importance of just cooperation strength among nodes when describing areas of maximal biodiversity. Indeed, we show that cooperation parameters are the central role for biodiversity while other measures act as secondary supporting functions. |
Agencias financiadoras | Ministerio de Economia, Industria y Competitividad (MINECO). España Junta de Andalucía |
Identificador del proyecto | PGC2018-096540-B-I00
US-1254251 P20-00592 |
Cita | Portillo Fernández, J.R., Soler Toscano, F. y Langa Rosado, J.A. (2022). Global structural stability and the role of cooperation in mutualistic systems. PlosOne, 17 (4) |
Ficheros | Tamaño | Formato | Ver | Descripción |
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journal.pone.0267404.pdf | 2.199Mb | [PDF] | Ver/ | |