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2023-12-21Zeitschriftenartikel DOI: 10.18452/28791
Diet in phenotypically divergent sympatric species of African weakly electric fish (genus: Campylomormyrus)—A hybrid capture/HTS metabarcoding approach
dc.contributor.authorAmen, Rahma
dc.contributor.authorHavenstein, Katja
dc.contributor.authorKirschbaum, Frank
dc.contributor.authorTiedemann, Ralph
dc.date.accessioned2024-05-29T13:50:27Z
dc.date.available2024-05-29T13:50:27Z
dc.date.issued2023-12-21none
dc.date.updated2024-04-16T08:22:19Z
dc.identifier.urihttp://edoc.hu-berlin.de/18452/29377
dc.description.abstractEcological speciation within the mormyrid genus Campylomormyrus resulted in sympatric species exhibiting divergence in their feeding apparatus and electric organ discharge (EOD). This study documents the overall diet of the genus Campylomormyrus and examines the hypothesis that the Campylomormyrus radiation is caused by adaptation to different food sources. We performed diet assessment of five sympatric Campylomormyrus species (C. alces, C. compressirostris, C. curvirostris, C. tshokwe, C. numenius) and their sister taxon Gnathonemus petersii with markedly different snout morphologies and EODs using hybrid capture/HTS DNA metabarcoding of their stomach contents. Our approach allowed for high taxonomic resolution of prey items, including benthic invertebrates, allochthonous invertebrates and vegetation. Comparisons of the diet compositions using quantitative measures and diet overlap indices revealed that all species are able to exploit multiple food niches in their habitats, that is fauna at the bottom, the water surface and the water column. A major part of the diet is larvae of aquatic insects, such as dipterans, coleopterans and trichopterans, known to occur in holes and interstitial spaces of the substrate. The results indicate that different snout morphologies and the associated divergence in the EOD could translate into different prey spectra. This suggests that the diversification in EOD and/or morphology of the feeding apparatus could be under functional adaptation.eng
dc.description.sponsorshipMinistry of Higher Education of the Arab Republic of Egypt
dc.description.sponsorshipUniversität Potsdam http://dx.doi.org/10.13039/501100004238
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY-NC 4.0) Attribution-NonCommercial 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectdietary metabarcodingeng
dc.subjectecological speciationeng
dc.subjectfeeding behavioureng
dc.subjectnext generation sequencingeng
dc.subjectweakly electric fisheng
dc.subject.ddc570 Biologienone
dc.titleDiet in phenotypically divergent sympatric species of African weakly electric fish (genus: Campylomormyrus)—A hybrid capture/HTS metabarcoding approachnone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/29377-4
dc.identifier.doihttp://dx.doi.org/10.18452/28791
dc.type.versionpublishedVersionnone
local.edoc.pages13none
local.edoc.type-nameZeitschriftenartikel
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
dc.description.versionPeer Reviewednone
dc.identifier.eissn1365-294X
dcterms.bibliographicCitation.doi10.1111/mec.17248
dcterms.bibliographicCitation.journaltitleMolecular ecologynone
dcterms.bibliographicCitation.volume33none
dcterms.bibliographicCitation.issue4none
dcterms.bibliographicCitation.articlenumbere17248none
dcterms.bibliographicCitation.originalpublishernameWiley-Blackwellnone
dcterms.bibliographicCitation.originalpublisherplaceOxford [u.a.]none
bua.departmentLebenswissenschaftliche Fakultätnone

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