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  The role of plasticity and stochasticity in coexistence

Kalirad, A., & Sommer, R. (2024). The role of plasticity and stochasticity in coexistence. Ecology Letters, 27(2): e14370. doi:10.1111/ele.14370.

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Kalirad, A1, Author                 
Sommer, RJ1, Author                 
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1Department Integrative Evolutionary Biology, Max Planck Institute for Biology Tübingen, Max Planck Society, ou_3371685              

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 Abstract: Species coexistence in ecological communities is a central feature of biodiversity. Different concepts, i.e., contemporary niche theory, modern coexistence theory, and the unified neutral theory, have identified many building blocks of such ecological assemblies. However, other factors, such as phenotypic plasticity and stochastic inter-individual variation, have received little attention, in particular in animals. For example, how resource polyphenisms resulting in predator-prey interactions affect coexistence is currently unknown. Here, we present an integrative theoretical-experimental framework using the nematode plasticity model Pristionchus pacificus with its well-studied mouth-form dimorphism resulting in cannibalism. We develop an individual-based model that relies upon synthetic data based on our empirical measurements of fecundity and polyphenism to preserve demographic heterogeneity. We demonstrate how the interplay between plasticity and individual stochasticity result in all-or-nothing outcomes at the local level. Coexistence is made possible when spatial structure is introduced.

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 Dates: 2024-02
 Publication Status: Issued
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 Rev. Type: -
 Identifiers: DOI: 10.1111/ele.14370
PMID: 38348631
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Title: Ecology Letters
Source Genre: Journal
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Publ. Info: Oxford, UK : Blackwell Science
Pages: 16 Volume / Issue: 27 (2) Sequence Number: e14370 Start / End Page: - Identifier: ISSN: 1461-023X
CoNE: https://pure.mpg.de/cone/journals/resource/954925625294