One cost of being gold : selective predation and implications for the maintenance of the Midas cichlid colour polymorphism (Perciformes: Cichlidae)

Lade...
Vorschaubild
Dateien
Kusche_278991.pdf
Kusche_278991.pdfGröße: 406.03 KBDownloads: 264
Datum
2014
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
DOI (zitierfähiger Link)
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
European Union (EU): 293700
Projekt
Comparative genomics of parallel in repeated adaptive radiations (GenAdap)
Open Access-Veröffentlichung
Open Access Green
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Biological Journal of the Linnean Society. 2014, 111(2), pp. 350-358. ISSN 0024-4066. eISSN 1095-8312. Available under: doi: 10.1111/bij.12205
Zusammenfassung

In the colour-polymorphic Midas cichlid fish species complex (Amphilophus citrinellus spp.), gold morphs occur at much lower frequencies (< 10%) than dark individuals. This might be surprising because gold coloration is dominant and coded for by a single Mendelian locus. Furthermore, gold individuals are considered to be competitively advantaged over dark ones because they grow faster and win aggressive encounters more often compared to dark individuals of equal size. However, one might expect a cost of being gold in terms of natural selection as a result of predation. We tested whether the Jaguar cichlid (Parachromis managuensis), a major fish predator of Midas cichlids, preys differentially on colour variants of goldfish (Carassius auratus auratus), which were used as a proxy for Midas cichlids because of their similarity in colour. Size-matched pairs of prey fish (gold and dark) were offered to the predator and the time until the fish were attacked was recorded. The gold morph was attacked first more often (approximately 70%) but not faster than the dark morph. This suggests that the predator perceives the gold individual first, and/or that the predator exhibits a preference or higher motivation to attack the gold prey fish. The increased risk of predation of gold prey fish suggests for the Midas cichlid system that being gold may carry significant costs in terms of natural selection as a result of its major piscivorous predator.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
570 Biowissenschaften, Biologie
Schlagwörter
Adaptive radiation, Amphilophus citrinellus, neotropical species complex, Parachromis managuensis, predator-prey experiment
Konferenz
Rezension
undefined / . - undefined, undefined
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Datensätze
Zitieren
ISO 690KUSCHE, Henrik, Axel MEYER, 2014. One cost of being gold : selective predation and implications for the maintenance of the Midas cichlid colour polymorphism (Perciformes: Cichlidae). In: Biological Journal of the Linnean Society. 2014, 111(2), pp. 350-358. ISSN 0024-4066. eISSN 1095-8312. Available under: doi: 10.1111/bij.12205
BibTex
@article{Kusche2014being-27899,
  year={2014},
  doi={10.1111/bij.12205},
  title={One cost of being gold : selective predation and implications for the maintenance of the Midas cichlid colour polymorphism (Perciformes: Cichlidae)},
  number={2},
  volume={111},
  issn={0024-4066},
  journal={Biological Journal of the Linnean Society},
  pages={350--358},
  author={Kusche, Henrik and Meyer, Axel}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/27899">
    <dc:contributor>Meyer, Axel</dc:contributor>
    <dcterms:title>One cost of being gold : selective predation and implications for the maintenance of the Midas cichlid colour polymorphism (Perciformes: Cichlidae)</dcterms:title>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dc:rights>terms-of-use</dc:rights>
    <dcterms:abstract xml:lang="eng">In the colour-polymorphic Midas cichlid fish species complex (Amphilophus citrinellus spp.), gold morphs occur at much lower frequencies (&lt; 10%) than dark individuals. This might be surprising because gold coloration is dominant and coded for by a single Mendelian locus. Furthermore, gold individuals are considered to be competitively advantaged over dark ones because they grow faster and win aggressive encounters more often compared to dark individuals of equal size. However, one might expect a cost of being gold in terms of natural selection as a result of predation. We tested whether the Jaguar cichlid (Parachromis managuensis), a major fish predator of Midas cichlids, preys differentially on colour variants of goldfish (Carassius auratus auratus), which were used as a proxy for Midas cichlids because of their similarity in colour. Size-matched pairs of prey fish (gold and dark) were offered to the predator and the time until the fish were attacked was recorded. The gold morph was attacked first more often (approximately 70%) but not faster than the dark morph. This suggests that the predator perceives the gold individual first, and/or that the predator exhibits a preference or higher motivation to attack the gold prey fish. The increased risk of predation of gold prey fish suggests for the Midas cichlid system that being gold may carry significant costs in terms of natural selection as a result of its major piscivorous predator.</dcterms:abstract>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/27899"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-06-20T09:35:53Z</dcterms:available>
    <dcterms:issued>2014</dcterms:issued>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/27899/1/Kusche_278991.pdf"/>
    <dc:creator>Meyer, Axel</dc:creator>
    <dc:creator>Kusche, Henrik</dc:creator>
    <dcterms:bibliographicCitation>Biological Journal of the Linnean Society ; 111 (2014), 2. - S. 350-358</dcterms:bibliographicCitation>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/27899/1/Kusche_278991.pdf"/>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dc:contributor>Kusche, Henrik</dc:contributor>
    <dc:language>eng</dc:language>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-06-20T09:35:53Z</dc:date>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Ja
Begutachtet
Diese Publikation teilen