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dc.contributor.authorSanchez-Hernandez, Javier
dc.contributor.authorGabler, Heidi-Marie
dc.contributor.authorAmundsen, Per-Arne
dc.date.accessioned2018-04-19T12:58:14Z
dc.date.available2018-04-19T12:58:14Z
dc.date.issued2017-02-26
dc.description.abstractAlthough food resource partitioning among sympatric species has often been explored in riverine systems, the potential influence of prey diversity on resource partitioning is little known. Using empirical data, we modeled food resource partitioning (assessed as dietary overlap) of coexisting juvenile Atlantic salmon (Salmo salar) and alpine bullhead (Cottus poecilopus). Explanatory variables incorporated into the model were fish abundance, benthic prey diversity and abundance, and several dietary metrics to give a total of seventeen potential explanatory variables. First, a forward stepwise procedure based on the Akaike information criterion was used to select explanatory variables with significant effects on food resource partitioning. Then, linear mixed-effect models were constructed using the selected explanatory variables and with sampling site as a random factor. Food resource partitioning between salmon and bullhead increased significantly with increasing prey diversity, and the variation in food resource partitioning was best described by the model that included prey diversity as the only explanatory variable. This study provides empirical support for the notion that prey diversity is a key driver of resource partitioning among competing species.en_US
dc.description.sponsorshipXunta de Galicia. Grant Number: Plan I2Cen_US
dc.descriptionSource at <a href=http://dx.doi.org/10.1002/ece3.2793> http://dx.doi.org/10.1002/ece3.2793 </a>en_US
dc.identifier.citationSanchez-Hernandez, J., Gabler, H-M. & Amundsen, P-A. (2017). Prey diversity as a driver of resource partitioning between river-dwelling fish species. Ecology and Evolution. 7:2058-2068en_US
dc.identifier.cristinIDFRIDAID 1507899
dc.identifier.doi10.1002/ece3.2793
dc.identifier.issn2045-7758
dc.identifier.urihttps://hdl.handle.net/10037/12549
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.journalEcology and Evolution
dc.relation.projectIDNorges forskningsråd: ?en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Limnologi: 498en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Limnology: 498en_US
dc.titlePrey diversity as a driver of resource partitioning between river-dwelling fish speciesen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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