Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series FORUM-ENS
Subjects cond-mat.stat-mech
Date Wednesday 4 December 2019
Time 12:00
Institute LPENS
Seminar Room Conf. IV
Speaker's Last Name Bunin
Speaker's First Name Guy
Speaker's Email Address
Speaker's Institution Technion – Israel Institute of Technology
Title Random interactions and high-dimensionality in ecology
Abstract 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.
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