Effects of sampling time, species richness and observer on the exhaustiveness of plant censuses

By F. Archaux, Frédéric Gosselin, L. Bergès, R. Chevalier. 2006

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Imperfect detection is the rule rather than the exception in plant distribution studies (2013, background): “For instance, in several vegetation surveys, 20–30% species were overlooked (Nilsson & Nilsson 1985; Scott & Hallam 2002; Archaux et al. 2006).”
Using DNA to assess errors in tropical tree identifications: How often are ecologists wrong and when does it matter? (2010, background): “This can be accomplished by having a taxonomic expert review all of the ecologists’ identifications (cf. Oliver and Beattie 1993, Derraik et al. 2002, Scott and Hallam 2002, Barratt et al. 2003) or through repeated surveys with different observers (Condit 1998, Archaux et al. 2006).”
Plant names in vegetation databases – a neglected source of bias (2010, background): “Many studies have demonstrated that even experienced surveyors can typically overlook or misidentify a fraction of the plants present (e.g. Tüxen 1972; Scott & Hallam 2003; Archaux et al. 2006; Vittoz & Guisan 2007).”