Maximal ecological diversity exceeds evolutionary diversity in model ecosystems.
ESS
adaptive dynamics
community assembly
competition
diversity
evolutionary stable state
maximal ecological diversity
niche packing
random assembly
saturation
Journal
Ecology letters
ISSN: 1461-0248
Titre abrégé: Ecol Lett
Pays: England
ID NLM: 101121949
Informations de publication
Date de publication:
Mar 2023
Mar 2023
Historique:
revised:
10
10
2022
received:
29
03
2022
accepted:
12
10
2022
pubmed:
4
2
2023
medline:
25
2
2023
entrez:
3
2
2023
Statut:
ppublish
Résumé
Understanding community saturation is fundamental to ecological theory. While investigations of the diversity of evolutionary stable states (ESSs) are widespread, the diversity of communities that have yet to reach an evolutionary endpoint is poorly understood. We use Lotka-Volterra dynamics and trait-based competition to compare the diversity of randomly assembled communities to the diversity of the ESS. We show that, with a large enough founding diversity (whether assembled at once or through sequential invasions), the number of long-time surviving species exceeds that of the ESS. However, the excessive founding diversity required to assemble a saturated community increases rapidly with the dimension of phenotype space. Additionally, traits present in communities resulting from random assembly are more clustered in phenotype space compared to random, although still markedly less ordered than the ESS. By combining theories of random assembly and ESSs we bring a new viewpoint to both the saturation and random assembly literature.
Types de publication
Letter
Langues
eng
Sous-ensembles de citation
IM
Pagination
384-397Subventions
Organisme : Fondo Nacional de Desarrollo Científico y Tecnológico
ID : 1200708
Organisme : Natural Sciences and Engineering Research Council of Canada
ID : 219930
Informations de copyright
© 2023 John Wiley & Sons Ltd.
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