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Sperm length variation as a predictor of extrapair paternity in passerine birds
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SYSNO ASEP 0349461 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Sperm length variation as a predictor of extrapair paternity in passerine birds Author(s) Lifjeld, J. T. (NO)
Laskemoen, T. (NO)
Kleven, O. (NO)
Albrecht, Tomáš (UBO-W) RID, SAI, ORCID
Robertson, R. J. (CA)Number of authors 5 Source Title PLoS ONE. - : Public Library of Science - ISSN 1932-6203
Roč. 5, č. 10 (2010), e13456Number of pages 8 s. Language eng - English Country US - United States Keywords postcopulatory sexual selection ; pair paternity ; intraspecific variation ; molecular phylogeny ; mating systems ; zebra finch Subject RIV EG - Zoology R&D Projects LC06073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z60930519 - UBO-W (2005-2011) UT WOS 000283045300026 EID SCOPUS 78149427293 DOI 10.1371/journal.pone.0013456 Annotation We collected sperm samples from 55 passerine species in Canada and Europe for which extrapair paternity rates were already available from either the same (n = 24) or a different (n = 31) study population. We measured the total length of individual spermatozoa and found that both the coefficient of between-male variation (CVbm) and within-male variation (CVwm) in sperm length were strong predictors of the rate of extrapair paternity, explaining as much as 65% and 58%, respectively, of the variation in extrapair paternity among species. However, only the CVbm predictor was independent of phylogeny, which implies that it can readily be converted into a currency of extrapair paternity without the need for phylogenetic correction. Workplace Institute of Vertebrate Biology Contact Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Year of Publishing 2011
Number of the records: 1