We introduce a new statistical method to select which morphological characters are most useful to identify monogenean species. The method estimates the average size overlap of candidate diagnostic structures among a set of species to individuate those that mostly differ between the species. To demonstrate our approach, we report a comprehensive analysis conducted on two of the most species-rich monogenean genera: Dactylogyrus Diesing, 1850 and Gyrodactylus von Nordmann, 1832. We demonstrate that, in contrast to common taxonomic practice, very few but highly diagnostic measurements are necessary to correctly identify a specimen. In particular, we found that most of Dactylogyrus and Gyrodactylus species can be classified on the basis of the width of the supplementary connecting bar and of the length of the hook sickle, respectively.

Strona, G., Montano, S., Seveso, D., Galli, P., Fattorini, S. (2014). Identification of Monogenea made easier: a new statistical procedure for an automatic selection of diagnostic linear measurements in closely related species. JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH, 52(2), 95-99 [10.1111/jzs.12050].

Identification of Monogenea made easier: a new statistical procedure for an automatic selection of diagnostic linear measurements in closely related species

MONTANO, SIMONE
Secondo
;
SEVESO, DAVIDE
Penultimo
;
GALLI, PAOLO
Primo
;
2014

Abstract

We introduce a new statistical method to select which morphological characters are most useful to identify monogenean species. The method estimates the average size overlap of candidate diagnostic structures among a set of species to individuate those that mostly differ between the species. To demonstrate our approach, we report a comprehensive analysis conducted on two of the most species-rich monogenean genera: Dactylogyrus Diesing, 1850 and Gyrodactylus von Nordmann, 1832. We demonstrate that, in contrast to common taxonomic practice, very few but highly diagnostic measurements are necessary to correctly identify a specimen. In particular, we found that most of Dactylogyrus and Gyrodactylus species can be classified on the basis of the width of the supplementary connecting bar and of the length of the hook sickle, respectively.
Articolo in rivista - Articolo scientifico
Evolutionary radiation – morphometry – regression tree – sclerites
English
95
99
5
Strona, G., Montano, S., Seveso, D., Galli, P., Fattorini, S. (2014). Identification of Monogenea made easier: a new statistical procedure for an automatic selection of diagnostic linear measurements in closely related species. JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH, 52(2), 95-99 [10.1111/jzs.12050].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/61233
Citazioni
  • Scopus 5
  • ???jsp.display-item.citation.isi??? 4
Social impact