Department of Physics, University of Toronto
Collaborators: Jeremy Rothschild, Department of Physics, University of Toronto; Sidhartha Goyal, Department of Physics, University of Toronto and Institute for Biomedical Engineering, University of Toronto; and Anton Zilman, Department of Physics, University of Toronto and Institute for Biomedical Engineering, University of Toronto
Title: CBehavior of Competitive Ecosystems Beyond the Niche-Neutral Regimes
Short Abstract: We examine the multi-species competitive ecosystems under demographic noise, based on birth-death-immigration process. Using simulations and analytical arguments, we define and investigate various behavioral phases of the stationary abundance distribution. Noteworthy, these regimes exhibit different behaviors of extinction and invasion, the dynamics of which we quantify. Our work presents a rich phase-space for the stationary behaviors in a competitive ecosystem. These results provide a framework for interpreting the discrepancies of abundances in ecological data of populations and inferring the underlying dynamics that shape the communities of interacting species.
Link to Full Abstract: Leibovich_Nava
Link to Poster: Poster Nava Leib