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November 25, 2025Ecological ApplicationsOpen Access

Weak effects of local prey density and spatial overlap on predation intensity in a temperate marine ecosystem

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Authors

MLMax LindmarkCGChristopher A. GriffithsVBValerio Bartolino

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Implication

Research demonstrates the weak link between prey availability and predation intensity in the Baltic Sea, suggesting complexities in predator-prey interactions.

Key Points

  • This research aims to assess how local prey density and spatial overlap influence predation intensity among marine species.
  • Analyzed three decades of biomass and stomach content data from the Baltic Sea
  • Employed geostatistical generalized linear mixed-effects models
  • Focused on Atlantic cod and key prey species including herring, isopod, and sprat
  • Observed reduced predator–prey overlap is now the lowest in three decades
  • Found associations between prey availability and stomach contents for isopod, but not for herring or sprat
  • Indicated weak correlation between predator–prey overlap and population-level predation indices

Cite This Study

Lindmark et al. (2025) studied this question.

synapsesocial.com/papers/692502d187af00ed34ac2736https://doi.org/10.1002/eap.70136
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