Optimal species distinction by discriminant analysis: comparing established methods of character selection with a combination procedure using ant morphometrics as a case study Journal Article


Author(s): Moder, Karl; Schlick-Steiner, Birgit C; Steiner, Florian M; Cremer, Sylvia; Christian, Erhard; Seifert, Bernhard
Article Title: Optimal species distinction by discriminant analysis: comparing established methods of character selection with a combination procedure using ant morphometrics as a case study
Affiliation
Abstract: We compare the performances of established means of character selection for discriminant analysis in species distinction with a combination procedure for finding the optimal character combination (minimum classification error, minimum number of required characters), using morphometric data sets from the ant genera Cardiocondyla, Lasius and Tetramorium. The established methods are empirical character selection as well as forward selection, backward elimination and stepwise selection of discriminant analysis. The combination procedure is clearly superior to the established methods of character selection, and is widely applicable.
Keywords: Formicidae; ants; biodiversity; combination procedure; discriminant analysis; Hymenoptera; most similar species; quantitative characterization; sibling species
Journal Title: Journal of Zoological Systematics and Evolutionary Research
Volume: 45
Issue 1
ISSN: 0947-5745
Publisher: Wiley-Blackwell  
Date Published: 2006-08-29
Start Page: 82
End Page: 87
DOI: 10.1111/j.1439-0469.2006.00372.x
Open access: no