Do rare species have any place in multivariate analysis for bioassessment?

By Roger Marchant. Journal of The North American Benthological Society, 2002

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Effects of sampling error on bioassessments of stream ecosystems: application to RIVPACS-type models (2004, background): “The use of rare taxa in bioassessments is a continuing source of debate (Cao et al. 1998, 2001, Cao and Williams 1999, Marchant 1999, 2002).”
Addressing the removal of rare species in multivariate bioassessments: The impact of methodological choices (2012, background): “In particular, the treatment of rare species has received much attention in bioassessment studies (e.g., Faith and Norris, 1989; Norris, 1995; Cao et al., 1998; Marchant, 1999, 2002).”
Disturbance and diversity of wood-inhabiting fungi: effects of canopy gaps and downed woody debris (2014, background): “However, previous studies have found that exclusion of rare species is necessary to properly interpret the effects of disturbance on species diversity, due in part to natural sampling limitations (Marchant 2002; Van Sickle et al. 2007).”