A taxonomy of multiple stable states in complex ecological communities

Aguadé-Gorgorió Guim, Arnoldi Jean-François, Barbier Matthieu, Kéfi Sonia. 2024. A taxonomy of multiple stable states in complex ecological communities. Ecology Letters, 27 (4):e14413, 14 p.

https://doi.org/10.1111/ele.14413

Article de revue ; Article de recherche ; Article de revue à facteur d'impact

Prévisualisation

Version publiée - Anglais
Sous licence

.
Ecology Letters - 2024 - Aguadé‐Gorgorió - A taxonomy of multiple stable states in complex ecological communities.pdf
Télécharger (4MB) | Prévisualisation

Url - autres données associées : https://github.com/GuimAguade/A-taxonomy-of-MSS-in-complex-ecological-communities

Résumé : Natural systems are built from multiple interconnected units, making their dynamics, functioning and fragility notoriously hard to predict. A fragility scenario of particular relevance concerns so-called regime shifts: abrupt transitions from healthy to degraded ecosystem states. An explanation for these shifts is that they arise as transitions between alternative stable states, a process that is well-understood in few-species models. However, how multistability upscales with system complexity remains a debated question. Here, we identify that four different multistability regimes generically emerge in models of species-rich communities and other archetypical complex biological systems assuming random interactions. Across the studied models, each regime consistently emerges under a specific interaction scheme and leaves a distinct set of fingerprints in terms of the number of observed states, their species richness and their response to perturbations. Our results help clarify the conditions and types of multistability that can be expected to occur in complex ecological communities.

Mots-clés Agrovoc : modèle mathématique, interactions biologiques, écologie, modèle de simulation, écologie microbienne, écosystème, biocénose

Mots-clés libres : Community ecology, Complex systems, Multiple stable states, Regime shifts

Classification Agris : U60 - Sciences de la vie et de la Terre
U10 - Informatique, mathématiques et statistiques

Champ stratégique Cirad : CTS 1 (2019-) - Biodiversité

Agences de financement hors UE : Fundación Ramón Areces, Agence Nationale de la Recherche

Projets sur financement : (FRA) Modèles statistiques avancés pour les réseaux écologiques

Auteurs et affiliations