Počet záznamů: 1
Seasonal change in the opportunity for sexual selection
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SYSNO ASEP 0093562 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Seasonal change in the opportunity for sexual selection Překlad názvu Sezónní změny v potenciálu pohlavního výběru Tvůrce(i) Reichard, Martin (UBO-W) RID, ORCID, SAI, SAI
Smith, C. (GB)
Bryja, Josef (UBO-W) RID, SAI, ORCIDZdroj.dok. Molecular Ecology. - : Wiley - ISSN 0962-1083
Roč. 17, č. 2 (2008), s. 642-651Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova bitterling ; body size ; sexual selection ; mating success ; reproductive skew Vědní obor RIV EH - Ekologie - společenstva CEP KJB600930501 GA AV ČR - Akademie věd CEZ AV0Z60930519 - UBO-W (2005-2011) UT WOS 000252398300013 EID SCOPUS 38149062589 DOI 10.1111/j.1365-294X.2007.03602.x Anotace 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-based mating 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. Pracoviště Ústav biologie obratlovců Kontakt Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Rok sběru 2008
Počet záznamů: 1