Emergent phases of ecological diversity and dynamics mapped in microcosms

Hu Jiliang, Amor Daniel R., Barbier Matthieu, Bunin Guy, Gore Jeff. 2022. Emergent phases of ecological diversity and dynamics mapped in microcosms. Science, 378 (6615) : 85-89.

Url - autres données associées : https://github.com/Jiliang-Hu/Emergent-phases

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Anthropologie-Ethnologie; Economie-gestion; Psychologie-éthologie-ergonomie; Sociologie-démographie

Résumé : From tropical forests to gut microbiomes, ecological communities host notably high numbers of coexisting species. Beyond high biodiversity, communities exhibit a range of complex dynamics that are difficult to explain under a unified framework. Using bacterial microcosms, we performed a direct test of theory predicting that simple community-level features dictate emergent behaviors of communities. As either the number of species or the strength of interactions increases, we show that microbial ecosystems transition between three distinct dynamical phases, from a stable equilibrium in which all species coexist to partial coexistence to emergence of persistent fluctuations in species abundances, in the order predicted by theory. Under fixed conditions, high biodiversity and fluctuations reinforce each other. Our results demonstrate predictable emergent patterns of diversity and dynamics in ecological communities.

Mots-clés Agrovoc : biodiversité, forêt tropicale, écologie, écologie forestière, dynamique des populations, technique de prévision, écosystème, cartographie, hôte

Mots-clés géographiques Agrovoc : France

Auteurs et affiliations

• Hu Jiliang, MIT (USA)
• Amor Daniel R., MIT (USA)
• Barbier Matthieu, CIRAD-BIOS-UMR PHIM (FRA) ORCID: 0000-0002-0669-8927
• Bunin Guy, Israel Institute of Technology (ISR)
• Gore Jeff, MIT (USA) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/606393/)

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