Sperm competition influences sperm size in mammals
1991; Royal Society; Volume: 243; Issue: 1308 Linguagem: Inglês
10.1098/rspb.1991.0029
ISSN1471-2954
AutoresMontserrat Gomendio, Eduardo R. S. Roldán,
Tópico(s)Evolutionary Psychology and Human Behavior
ResumoRestricted accessMoreSectionsView PDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmail Cite this article Gomendio Montserrat and Roldan Eduardo R. S. 1991Sperm competition influences sperm size in mammalsProc. R. Soc. Lond. B.243181–185http://doi.org/10.1098/rspb.1991.0029SectionRestricted accessArticleSperm competition influences sperm size in mammals Montserrat Gomendio Google Scholar Find this author on PubMed Search for more papers by this author and Eduardo R. S. Roldan Google Scholar Find this author on PubMed Search for more papers by this author Montserrat Gomendio Google Scholar Find this author on PubMed and Eduardo R. S. Roldan Google Scholar Find this author on PubMed Published:22 March 1991https://doi.org/10.1098/rspb.1991.0029AbstractAmong mammals sperm competition leads to selection for increased sperm numbers but it is not known whether it also leads to changes in sperm size. Two contrasting theoretical predictions have been made. The first hypothesis relies on the assumption that there is a trade-off between sperm numbers and sperm size and predicts that, in species confronting sperm competition, there will be a concomitant decrease in sperm size as sperm numbers increase. In contrast, the second hypothesis suggests that longer sperm may outcompete rival sperm; if longer sperm may swim faster, they will reach the ova sooner and will be selected when sperm competition prevails. We tested these hypotheses in both primates and rodents. We report that males from species in which females mate promiscuously have longer sperm than species in which females mate with one male. In addition, we also found that sperm length is positively correlated with maximum sperm velocity. Our findings thus support the view that longer sperm may be adaptive in the context of sperm competition.FootnotesThis text was harvested from a scanned image of the original document using optical character recognition (OCR) software. As such, it may contain errors. Please contact the Royal Society if you find an error you would like to see corrected. Mathematical notations produced through Infty OCR. Next Article VIEW FULL TEXT DOWNLOAD PDF FiguresRelatedReferencesDetailsCited by Fishman E, Turner K, Jaiswal A, Khanal S, Ott B, Dusza P and Avidor-Reiss T (2021) The Typical and Atypical Centrioles and Their Potential Roles in the Sperm and Embryo XIIIth International Symposium on Spermatology, 10.1007/978-3-030-66292-9_17, (85-120), . Melnyck K and Camilleri J (2021) Sperm Competition Risk and Partner Abuse Encyclopedia of Evolutionary Psychological Science, 10.1007/978-3-319-19650-3_2051, (7861-7862), . 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