#8219. Cross-habitat access modifies the ‘trophic relay’ in New England saltmarsh ecosystems

October 2026publication date
Proposal available till 08-06-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Ecology;
Ecology, Evolution, Behavior and Systematics;
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Abstract:
In New England saltmarshes, mummichogs (Fundulus heteroclitus) connect the vegetated marsh and creek food webs by opportunistically foraging on the invertebrate communities of the marsh surface when access is permitted by tidal flooding and marsh-edge geomorphology. Via their movements, mummichog represent a critical food web node, as they can potentially transport energy from the marsh surface food web to creek food web and exert top-down control on the communities of the vegetated marsh surface. Here, we demonstrate that access to the marsh surface (afforded by marsh-edge geomorphology) did not impact mummichog distribution across the marsh platform and exhibited no evidence of top-down control on their invertebrate prey.
Keywords:
Cross-habitat flow; Geomorphology; Predation; Saltmarsh; Spatially-coupled food webs; Trophic relay

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