{"refrec":{"BRefID":254730,"RR":"<b>Xue, D.-X.; Zhang, T.; Liu, J.-X.</b> (2016). Influences of population density on polyandry and patterns of sperm usage in the marine gastropod <i>Rapana venosa</i>. <i>NPG Scientific Reports 6(23461)</i>: 10 pp. <a href=\"http://dx.doi.org/10.1038/srep23461\" target=\"_blank\">http://dx.doi.org/10.1038/srep23461</a>","BEntID":246735,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 6(23461)</i>: 10 pp. <a href=\"http://dx.doi.org/10.1038/srep23461\" target=\"_blank\">http://dx.doi.org/10.1038/srep23461</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Xue, D.-X.; Zhang, T.; Liu, J.-X.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Xue, D.-X. <i>et al.</i>","Englishabstract":"Polyandry is a common mating strategy in animals, with potential for sexual selection to continue post-copulation through sperm competition and/or cryptic female choice. Few studies have investigated the influences of population density on polyandry and sperm usage, and paternity distribution in successive broods of marine invertebrates. The marine gastropod <i>Rapana venosa</i> is ideal for investigating how population density influences the frequency of polyandry and elucidating patterns of sperm usage. Two different population density (12?ind/m<sup>3</sup> and 36?ind/m<sup>3</sup>) treatments with two replications were set to observe reproductive behaviors. Five microsatellite markers were used to identify the frequency of multiple paternity and determine paternal contributions to progeny arrays in 120 egg masses. All of the mean mating frequency, mean number of sires and mean egg-laying frequency were higher at high population density treatment relative to low population density treatment, indicating population density is an important factor affecting polyandry. The last sperm donors achieved high proportions of paternity in 74.77% of egg masses, which supported the “last male sperm precedence” hypothesis. In addition, high variance in reproductive success among <i>R. venosa</i> males were detected, which might have an important influence on effective population size.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Influences of population density on polyandry and patterns of sperm usage in the marine gastropod <i>Rapana venosa</i>","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-15 01:32:49.331450","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2016,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2016-04-05","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000372447200002","VABBcode":null,"OpenAcc":1,"DOI":"10.1038/srep23461"},"refs":null,"anarec":{"AnaID":254730,"PubliDate":2016,"Pagination":"10 pp","XtraPublOfAnaID":null,"ISBN":null,"Volume":"6","Issue":"23461","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":208093,"SerRR":"Scientific Reports (Nature Publishing Group). 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