ArticleEcology and evolution2019
Novel tri-isotope ellipsoid approach reveals dietary variation in sympatric predators.
Article in Ecology and evolution, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Predator-mediated trophic connectivity between reef and oceanic habitats in Palau.Ecological applications : a publication of the Ecological Society of America · 2026Article
- 2D to 3D: Exploring Variation of Niche Dimensionality Across Consumers in a Coastal Arctic Ecosystem and Implications on Interpretation.Ecology and evolution · 2026Article
- Dietary ecology of the endangered seahorse Hippocampus haema unveiled through stable isotope analysis.Scientific reports · 2025Article
- Improving stable isotope assessments of inter- and intra-species variation in coral reef fish trophic strategies.Ecology and evolution · 2022Article
- Review
- Novel tri-isotope ellipsoid approach reveals dietary variation in sympatric predators.Ecology and evolution · 2019Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sympatric species may partition resources to reduce competition and facilitate co-existence. While spatial variation and specialization in feeding strategies may be prevalent among large marine predators, studies have focussed on sharks, birds, and marine mammals. We consider for the first time the isotopic niche partitioning of co-occurring, teleost reef predators spanning multiple families. Using a novel tri-isotope ellipsoid approach, we investigate the feeding strategies of seven of these species across an atoll seascape in the Maldives. We demonstrate substantial spatial variation in resource use of all predator populations. Furthermore, within each area, there was evidence of intraspecific variation in feeding behaviors that could not wholly be attributed to individual body size. Assessing species at the population level will mask these intraspecific differences in resource use. Knowledge of resource use is important for predicting how species will respond to environmental change and spatial variation should be considered when investigating trophic diversity.
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