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Is the colour dimorphism in Dactylorhiza sambucina maintained by differential seed viability instead of frequency-dependent selection?

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F06%3A00047588" target="_blank" >RIV/67179843:_____/06:00047588 - isvavai.cz</a>

  • Alternative codes found

    RIV/60076658:12310/06:00006623 RIV/60076658:12310/06:00007429

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Is the colour dimorphism in Dactylorhiza sambucina maintained by differential seed viability instead of frequency-dependent selection?

  • Original language description

    The European rewardless, bee-pollinated orchid Dactylorhiza sambucina commonly produces yellow-flowered and purple-flowered individuals in frequencies that range from balanced (per population) to very unbalanced, with parts of the species? range entirelymonochromatic. We studied male and female reproductive success of the two morphs in 22 populations in the Czech Republic, relating it to morph frequency, population size and density, and presence and abundance of yellow and purple co-flowering nectar-providing species visited by the same bee species. Cumulative abundances of yellow nectar-producing co-flowering species (of which, on average, Primula veris made up 56%) had a negative effect on male reproductive success of the yellow morph, and spectralanalyses showed that to bumblebees the colours of P. veris and yellow D. sambucina are different, permitting ready visual discrimination.

  • Czech name

    Je barevný polymorphismus Dactylorhiza sambucina udržován spíše rozdíly v životaschopnosti semen než selekcí závislou na frekvenci?

  • Czech description

    Evropský druh orchideje, Dactylorhiza sambucina, který nenabízí žádnou odměnu svým blanokřídlým opylovačům, se běžně vyskytuje ve žlutokvěté či červenokvěté formě. Zastoupení obou forem v evropských populacích kolísá od vyrovnaného poměru přes populace,kde dominuje jedna forma, až po zcela jednobarevné populace. Ve 22 populacích České republiky jsme studovali vztahy mezi reprodukční úspěšností obou forem a jejich zastoupením na lokalitě, velikostí a hustotou populací, přítomností a abundancí žlutokvětých a červenokvětých druhů rostlin s nektarem.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    EF - Botany

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/KJB6141302" target="_blank" >KJB6141302: Adaptive significance of nectar reward in orchids</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2006

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Folia Geobotanica et Phytotaxonomica

  • ISSN

    0015-5551

  • e-ISSN

  • Volume of the periodical

    41

  • Issue of the periodical within the volume

    -

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    16

  • Pages from-to

    61-76

  • UT code for WoS article

  • EID of the result in the Scopus database