Search Results for author: Guy Bunin

Found 4 papers, 1 papers with code

Local and extensive fluctuations in sparsely-interacting ecological communities

no code implementations3 Aug 2023 Stav Marcus, Ari M Turner, Guy Bunin

We characterize the approach from this phase to a phase with extensively many fluctuating species, and show that the probability of fluctuations grows continuously to one as the transition is approached, and that the number of fluctuating species diverges.

Many-species ecological fluctuations as a jump process from the brink of extinction

no code implementations23 Jun 2023 Thibaut Arnoulx de Pirey, Guy Bunin

We show that these and other phenomena can be understood through the existence of a scaling regime in the limit of small migration, in which large fluctuations and long timescales emerge.

Local and collective transitions in sparsely-interacting ecological communities

no code implementations26 Oct 2021 Stav Marcus, Ari M. Turner, Guy Bunin

Understanding community structure is thus made up of two parts: first, finding which subgraphs are allowed at a given interaction strength, and secondly, a discrete problem of matching these structures over the entire community.

Dynamical persistence in resource-consumer models

1 code implementation11 Feb 2020 Itay Dalmedigos, Guy Bunin

We show how highly-diverse ecological communities may display persistent abundance fluctuations, when interacting through resource competition and subjected to migration from a species pool.

Statistical Mechanics Populations and Evolution

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