Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines cond-mat.stat-mech
Date Mercredi 4 Décembre 2019
Heure 12:00
Institut LPENS
Salle Conf. IV
Nom de l'orateur Bunin
Prenom de l'orateur Guy
Addresse email de l'orateur
Institution de l'orateur Technion – Israel Institute of Technology
Titre Random interactions and high-dimensionality in ecology
Résumé Natural ecosystems exhibit astounding richness. This suggests that we treat them as many-variable interacting systems, but is there any evidence to support this perspective? I will discuss possible footprints of high-dimensionality, including phase-transitions, and “thermodynamic” variables which determine the system’s large-scale behavior. The latter are found in a wide range of accepted models in the field. Then, I’ll present a theory for how interactions organize to allow many species to coexist. Data from plant-competition experiments confirms the theoretical predictions, providing evidence for high-dimensionality in that ecosystem.
Numéro de preprint arXiv
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