Phenomenology and dynamics of competitive ecosystems beyond the niche-neutral regimes.

ABSTRACT: Structure, composition, and stability of ecological populations are shaped by the inter- and intraspecies interactions within their communities. It remains to be fully understood how the interplay of these interactions with other factors, such as immigration, controls the structure, the diversity, and the long-term stability of ecological systems in the presence of noise and fluctuations. We address this problem using a minimal model of interacting multispecies ecological communities that incorporates competition, immigration, and demographic noise. We find that a complete phase diagram exhibits rich behavior with multiple regimes that go beyond the classical "niche" and "neutral" regimes, extending and modifying the "rare biosphere" or "niche-like" dichotomy. In particular, we observe reg

SUBMITTER: Leibovich N 

PROVIDER: S-EPMC9618050 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature