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Seasonal change in the opportunity for sexual selection

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F08%3A00093562" target="_blank" >RIV/68081766:_____/08:00093562 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Seasonal change in the opportunity for sexual selection

  • Original language description

    We investigated seasonal changes in variation in reproductive success, measured as the opportunity for sexual selection, using parentage analysis in 20 experimental populations of the bitterling, a small freshwater fish with a promiscuous, resource-basedmating system. We showed that although the largest males sired most offspring over the entire reproductive season, variation in reproductive success and hence the opportunity for sexual selection was low at the start of the season but increased significantly at its end. This seasonal difference probably arose from the superior competitive endurance of large males and from a higher temporal clustering of reproductively active females at the start of the breeding season than later in the season. The spatial distribution of oviposition sites had a negligible effect on the variation in reproductive success. We discuss the potential implications of our results for the importance and strength of sexual selection in natural populations.

  • Czech name

    Sezónní změny v potenciálu pohlavního výběru

  • Czech description

    V této studii jsme sledovali sezónní změny v reprodukční úspěšnosti (měřené indexem příležitosti k pohlavnímu výběru) u 20 experimentálních populací hořavky duhové. Zjistili jsme, že potenciál k pohlavnímu výběru je silně sezónní a v práci diskutujeme možné implikace pro teorii pohlavního výběru v přírodních populacích.

Classification

  • Type

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

  • CEP classification

    EH - Ecology - communities

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/KJB600930501" target="_blank" >KJB600930501: The impact of mating tactics on individual reproductive success and population parameters in the European bitterling: behavioural and genetic approach</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Molecular Ecology

  • ISSN

    0962-1083

  • e-ISSN

  • Volume of the periodical

    17

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    10

  • Pages from-to

    642-651

  • UT code for WoS article

  • EID of the result in the Scopus database