ArticleEcology of freshwater fish2022
Trophic specialization on unique resources despite limited niche divergence in a celebrated example of sympatric speciation.
Article in Ecology of freshwater fish, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Sympatric Speciation of Tibetan Loaches (Ecology and evolution · 2026Article
- A multi-peak performance landscape for scale biting in an adaptive radiation of pupfishes.The Journal of experimental biology · 2024Article
- The West African lungfish secretes a living cocoon during aestivation with uncertain antimicrobial function.bioRxiv : the preprint server for biology · 2024Article
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6 authors.
Funding
Abstract
Trophic niche partitioning is observed in many adaptive radiations and is hypothesized to be a central process underlying species divergence. However, patterns of dietary niche partitioning are inconsistent across radiations and there are few studies of niche partitioning in putative examples of sympatric speciation. Here, we conducted the first quantitative study of dietary niche partitioning using stomach contents and stable isotope analyses in one of the most celebrated examples of sympatric speciation: the cichlid radiation from crater lake Barombi Mbo, Cameroon. We found little evidence for trophic niche partitioning among cichlids, including the nine species coexisting in the narrow littoral zone. Stable isotope analyses supported these conclusions of substantial dietary overlap. Our data, however, did reveal that five of eleven species consume rare dietary items, including freshwater sponge, terrestrial ants, and nocturnal foraging on shrimp. Stomach contents of the spongivore (
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