What question did this study set out to answer?

Investigate how spatially structured environments and landscape heterogeneity influence species coexistence and ecological stability in competitive dispersing metacommunities.

October 22, 2024Proceedings of the National Academy of SciencesOpen Access

Landscape and environmental heterogeneity support coexistence in competitive metacommunities

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Investigate how spatially structured environments and landscape heterogeneity influence species coexistence and ecological stability in competitive dispersing metacommunities.
Formulated a multilayer network model defining landscape-mediated fitness derived from colonization and extinction dynamics.
Introduced spatial disorder and analytically solved the model in the mean-field limit, expanding evaluations across arbitrary networks and realistic riverine and terrestrial landscapes.
Equivalent, homogeneous environments lead to competitive exclusion where a single species dominates, with coexistence occurring only under exact fitness trade-offs.
Sufficiently heterogeneous environments facilitate stable multi-species coexistence through the spontaneous localization of species into emerging ecological niches.
Dispersal network topology buffers competition across varied spatial structures, promoting spatial ecological patterns in realistic landscape configurations.

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Implication

Network modeling demonstrates how environmental heterogeneity enables stable coexistence across competitive metacommunities, indicating that landscape structure buffers competition.

Cite This Study

Padmanabha et al. (2024) studied this question.

synapsesocial.com/papers/6a1eef2b3f7b0df63e4a46ff https://doi.org/10.1073/pnas.2410932121

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Implication

Network modeling demonstrates how environmental heterogeneity enables stable coexistence across competitive metacommunities, indicating that landscape structure buffers competition.

Landscape and environmental heterogeneity support coexistence in competitive metacommunities

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Discussion

Implication

Cite This Study

Landscape and environmental heterogeneity support coexistence in competitive metacommunities

Key Points

Discussion

Implication

Cite This Study

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