Dataset Information

Generic assembly patterns in complex ecological communities.

ABSTRACT: The study of ecological communities often involves detailed simulations of complex networks. However, our empirical knowledge of these networks is typically incomplete and the space of simulation models and parameters is vast, leaving room for uncertainty in theoretical predictions. Here we show that a large fraction of this space of possibilities exhibits generic behaviors that are robust to modeling choices. We consider a wide array of model features, including interaction types and community structures, known to generate different dynamics for a few species. We combine these features in large simulated communities, and show that equilibrium diversity, functioning, and stability can be predicted analytically using a random model parameterized by a few statistical properties of the community. We give an ecological interpretation of this "disordered" limit where structure fails to emerge from complexity. We also demonstrate that some well-studied interaction patterns remain relevant in large ecosystems, but their impact can be encapsulated in a minimal number of additional parameters. Our approach provides a powerful framework for predicting the outcomes of ecosystem assembly and quantifying the added value of more detailed models and measurements.

SUBMITTER: Barbier M

PROVIDER: S-EPMC5834670 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

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Publications

Generic assembly patterns in complex ecological communities.

Barbier Matthieu M Arnoldi Jean-François JF Bunin Guy G Loreau Michel M

Proceedings of the National Academy of Sciences of the United States of America 20180213 9

The study of ecological communities often involves detailed simulations of complex networks. However, our empirical knowledge of these networks is typically incomplete and the space of simulation models and parameters is vast, leaving room for uncertainty in theoretical predictions. Here we show that a large fraction of this space of possibilities exhibits generic behaviors that are robust to modeling choices. We consider a wide array of model features, including interaction types and community ...[more]

PMID: 29440487

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Dataset Information

Generic assembly patterns in complex ecological communities.

Publications

Generic assembly patterns in complex ecological communities.

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