Invaders’ trophic position and their direct and indirect relationship influence on resident food webs

Ágnes Móréh and István Scheuring

Ecological Modelling, 2025, vol. 508, issue C

Abstract: Many ecosystems are undergoing simultaneous colonization and spread of multiple alien species. Invaders often negatively affect communities by reducing population sizes of resident species or even decreasing community diversity through extinctions. Direct and indirect interactions between them can amplify or mitigate their impacts on native communities. In this study, we compare the effects of two invaders on the resident model food webs under two scenarios: separate versus simultaneous invasion.

Keywords: Additivity; Synergism; Invasive species; Two-species invasion; Trophic position; Direct/indirect relationships (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:508:y:2025:i:c:s0304380025002248

DOI: 10.1016/j.ecolmodel.2025.111238

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