Počet záznamů: 1
Male coloration signals direct benefits in the European bitterling (Rhodeus amarus)
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SYSNO ASEP 0394419 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Male coloration signals direct benefits in the European bitterling (Rhodeus amarus) Tvůrce(i) Smith, Carl (UBO-W) RID, ORCID, SAI
Phillips, A. (GB)
Polačik, Matej (UBO-W) RID, SAI, ORCID
Reichard, Martin (UBO-W) RID, ORCID, SAI, SAICelkový počet autorů 4 Zdroj.dok. Environmental Biology of Fishes. - : Springer - ISSN 0378-1909
Roč. 97, č. 4 (2014), s. 335-341Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Oviposition ; Mate choice ; Mating system ; Nuptial coloration ; Sexual selection ; Spermatozoa Vědní obor RIV EG - Zoologie CEP GA206/09/1163 GA ČR - Grantová agentura ČR Institucionální podpora UBO-W - RVO:68081766 UT WOS 000332150200001 EID SCOPUS 84880184674 DOI 10.1007/s10641-013-0155-1 Anotace Female mating preferences are frequently associated with exaggerated male sexual traits. In the European bitterling, Rhodeus amarus, a fish with a resource-based mating system, male coloration is not associated with indirect genetic benefits of female mate choice, and does not reliably signal spawning site quality. We tested a link between the extent of male carotenoid-based coloration and testis size and number of spermatozoa stripped from the testes. Male body size predicted spermatozoa number, but less reliably than the extent of male coloration. Male color was a highly significant predictor of spermatozoa number, with approximately 26% of variance in the number of spermatozoa stripped from males predicted from male color after controlling for male body size. Body size, but not coloration, predicted teste size. Female bitterling often risk sperm limitation, especially during pair spawnings, and male nuptial coloration may be under direct selection through female mate choice as a signal of male fertilization efficiency. Pracoviště Ústav biologie obratlovců Kontakt Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Rok sběru 2014
Počet záznamů: 1