Evidence map›Paper›PMID 24772288›Full record

ArticleEcology and evolution2014

Crater lake cichlids individually specialize along the benthic-limnetic axis.

Henrik Kusche, Hans Recknagel, Kathryn Rebecca Elmer, Axel Meyer

Abstract read
In one paragraph

Article in Ecology and evolution, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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3 · Its place in the literature

Who cites it

17 citing papers in PubMed.

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  7. Constraints on the Ecomorphological Convergence of Zooplanktivorous Butterflyfishes.Integrative organismal biology (Oxford, England) · 2021
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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Henrik KuscheDepartment of Biology, Chair of Zoology and Evolutionary Biology, University of Konstanz Konstanz, 78457, Germany ; International Max Planck Research School for Organismal Biology, University of Konstanz Konstanz, 78457, Germany.
Hans RecknagelDepartment of Biology, Chair of Zoology and Evolutionary Biology, University of Konstanz Konstanz, 78457, Germany.
Kathryn Rebecca ElmerDepartment of Biology, Chair of Zoology and Evolutionary Biology, University of Konstanz Konstanz, 78457, Germany.
Axel MeyerDepartment of Biology, Chair of Zoology and Evolutionary Biology, University of Konstanz Konstanz, 78457, Germany ; International Max Planck Research School for Organismal Biology, University of Konstanz Konstanz, 78457, Germany.

Funding

European Research Council 293700
6 · The paper itself

Abstract

A common pattern of adaptive diversification in freshwater fishes is the repeated evolution of elongated open water (limnetic) species and high-bodied shore (benthic) species from generalist ancestors. Studies on phenotype-diet correlations have suggested that population-wide individual specialization occurs at an early evolutionary and ecological stage of divergence and niche partitioning. This variable restricted niche use across individuals can provide the raw material for earliest stages of sympatric divergence. We investigated variation in morphology and diet as well as their correlations along the benthic-limnetic axis in an extremely young Midas cichlid species, Amphilophus tolteca, endemic to the Nicaraguan crater lake Asososca Managua. We found that A. tolteca varied continuously in ecologically relevant traits such as body shape and lower pharyngeal jaw morphology. The correlation of these phenotypes with niche suggested that individuals are specialized along the benthic-limnetic axis. No genetic differentiation within the crater lake was detected based on genotypes from 13 microsatellite loci. Overall, we found that individual specialization in this young crater lake species encompasses the limnetic-as well as the benthic macro-habitat. Yet there is no evidence for any diversification within the species, making this a candidate system for studying what might be the early stages preceding sympatric divergence. A common pattern of adaptive diversification in freshwater fishes is the repeated evolution of open water (limnetic) species and of shore (benthic) species. Individual specialization can reflect earliest stages of evolutionary and ecological divergence. We here demonstrate individual specialization along the benthic-limnetic axis in a young adaptive radiation of crater lake cichlid fishes.

Indexed as

Benthic–limnetic axisdivergent selectionecological opportunityindividual specializationparallel evolutionphenotype-diet correlation

Identifiers

PMID24772288
PMCPMC3997327

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.