Parental investment and the control of sexual selection: predicting the direction of sexual competition
1996; Royal Society; Volume: 263; Issue: 1368 Linguagem: Inglês
10.1098/rspb.1996.0048
ISSN1471-2954
AutoresGeorge A. Parker, Leigh W. Simmons,
Tópico(s)Plant and animal studies
ResumoRestricted accessMoreSectionsView PDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmail Cite this article Parker George and Simmons L. W. 1996Parental investment and the control of sexual selection: predicting the direction of sexual competitionProc. R. Soc. Lond. B.263315–321http://doi.org/10.1098/rspb.1996.0048SectionRestricted accessArticleParental investment and the control of sexual selection: predicting the direction of sexual competition George Parker Google Scholar Find this author on PubMed Search for more papers by this author and L. W. Simmons Google Scholar Find this author on PubMed Search for more papers by this author George Parker Google Scholar Find this author on PubMed and L. W. Simmons Google Scholar Find this author on PubMed Published:22 March 1996https://doi.org/10.1098/rspb.1996.0048AbstractWe outline a technique for deducing the general direction of sexual competition which does not involve direct measurement of operational sex ratio. In doing so, we identify three key parameters that are responsible for the control of sexual selection; the relative 'times out' from reproductive activity for each sex, the adult sex ratio, and the extent of collateral investment. Reproductive events can be complex, involving collateral investments from several individuals, either simultaneously or sequentially. For example, two males may invest in the clutch of a single female. The direction of sexual competition depends on all three components. If the adult sex ratio is unity, it is easy to see that techniques involving comparison of potential rates of reproduction give the same prediction of the direction of sexual competition as times out, basically because potential reproductive rate involves the use of times out. Increased collateral investment by one sex increases the probability of sexual competition among the opposite sex. We stress that it is important to use the population mean values for relative times out and not the maximum possible value for an individual because it is the availability of mates within the population that will determine whether an individual will compete.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. 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This Issue22 March 1996Volume 263Issue 1368 Article InformationDOI:https://doi.org/10.1098/rspb.1996.0048Published by:Royal SocietyPrint ISSN:0962-8452Online ISSN:1471-2954History: Manuscript received28/11/1995Manuscript accepted15/12/1995Published online01/01/1997Published in print22/03/1996 License:Scanned images copyright © 2017, Royal Society Citations and impact Large datasets are available through Proceedings B's partnership with Dryad
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