{"refrec":{"BRefID":109487,"RR":"<b>Melo, A.S.; Bini, L.M.; Thomaz, S.M.</b> (2007). Assessment of methods to estimate aquatic macrophyte species richness in extrapolated sample sizes. <i>Aquat. Bot. 86(4)</i>: 377-384. <a href=\"https://dx.doi.org/10.1016/j.aquabot.2007.01.005\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquabot.2007.01.005</a>","BEntID":104184,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Aquat. Bot. 86(4)</i>: 377-384. <a href=\"https://dx.doi.org/10.1016/j.aquabot.2007.01.005\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquabot.2007.01.005</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Melo, A.S.; Bini, L.M.; Thomaz, S.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Melo, A.S.; Bini, L.M.; Thomaz, S.M.","Englishabstract":"We evaluated six methods to estimate species richness in extrapolated sample size using presence–absence data for aquatic macrophyte assemblages. Methods suitable for assemblages involving terrestrial and non-clonal (unitary) organisms may not be valid for aquatic macrophytes. The extrapolation of a species accumulation curve using a logarithmic function or using a linear model on the log of accumulated sampling units consistently overestimated species richness. The newly proposed Total-Species method gave similar results. The Negative Binomial and Logarithmic Series methods and the recently proposed Binomial Mixture Model were unbiased and accurate. 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