ArticleProceedings. Biological sciences2019
Competition and resource breadth shape niche variation and overlap in multiple trophic dimensions.
Article in Proceedings. Biological sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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Who cites it
32 citing papers in PubMed.
- Fatty acid profiles of muscle and liver reveal ontogenetic shifts in diet and reproductive investment in an undulate ray from the Bay of Biscay (northeast Atlantic).Journal of fish biology · 2026Article
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- Preservation of stable isotope niche dynamics in squamate museum specimens.The Journal of animal ecology · 2026Article
- Individual and population variation in isotopic niche between two sympatric cormorant species.PeerJ · 2026Article
- Phylogenetic signal in flowering phenology weakens over elevation in the high Andes of Chile: evidence for evolutionary convergence in a harsh habitat.Frontiers in plant science · 2026Article
- Spatiotemporal Niche Differentiation of Ungulates in the Southwest Mountains, China.Animals : an open access journal from MDPI · 2025Article
- Species-specific drivers explain fish feeding and individual niche variation.Journal of fish biology · 2025Article
- Disentangling the Effects of Biotic and Abiotic Dimensions of Ecological Opportunity on Individual Trophic Trait Variation.Molecular ecology · 2025Article
- Large-scale surveys of woodrats (Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Environmental and evolutionary factors jointly shape life-history trait diversity of terrestrial vertebrates across China.Zoological research · 2025Article
- Leaf Trait Divergence and Elevational Adaptation in EndangeredEcology and evolution · 2025Article
- Dietary Differentiation Mitigates Interspecific Interference Competition Between Sympatric Pallas's Cats (Animals : an open access journal from MDPI · 2025Article
- Changing ecosystems promote generalism and enhanced heterogeneity in diet composition in the endangered St. Lawrence Estuary beluga.Scientific reports · 2025Article
- Downscaling mutualistic networks from species to individuals reveals consistent interaction niches and roles within plant populations.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Reseeding Native Species Promotes Community Stability by Improving Species Diversity, Niche, and Interspecific Relationships in the Desert Steppe of Northwest China.Ecology and evolution · 2025Article
- Body size modulates the extent of seasonal diet switching by large mammalian herbivores in Yellowstone National Park.Royal Society open science · 2024Article
- Species Assembly of Highland Anuran Communities in Equatorial Africa (Virunga Massif): Soundscape, Acoustic Niches, and Partitioning.Animals : an open access journal from MDPI · 2024Article
- The Sympatric Coexistence Mechanism: A Case Study of Two Penahia Species in the Beibu Gulf, South China Sea.Animals : an open access journal from MDPI · 2024Article
- Detecting the ecological footprint of selection.PloS one · 2024Article
- Seasonal variation of population and individual dietary niche in the avivorous bat, Ia io.Oecologia · 2023Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Competition plays a central role in the maintenance of biodiversity. A backbone of classic niche theory is that local coexistence of competitors is favoured by the contraction or divergence of species' niches. However, this effect should depend on the diversity of resources available in the local environment, particularly when resources vary in multiple ecological dimensions. Here, we investigated how available resource breadth (i.e. prey diversity) and competition together shape multidimensional niche variation (between and within individuals) and interspecific niche overlap in 42 populations of congeneric tropical frog species. We modelled realized niches in two key trophic dimensions (prey size and carbon stable isotopes) and sampled available food resources to quantify two-dimensional resource breadth. We found a 14-fold variation in multidimensional population niche width across populations, most of which was accounted for by within-individual diet variation. This striking variation was predicted by an interaction whereby individual niche breadth increased with resource breadth and decreased with the number of congeneric competitors. These ecological gradients also interact to influence the degree of niche overlap between species, which surprisingly decreased with population total niche width, providing novel insights on how similar species can coexist in local communities. Together, our results emphasize that patterns of exploitation of resources in multiple dimensions are driven by both competitive interactions and extrinsic factors such as local resource breadth.
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