Identification and discrimination ofElectrogenaspecies by numerical methods (Ephemeroptera: Heptageniidae)
作者:
C. BELFIORE,
期刊:
Systematic Entomology
(WILEY Available online 1996)
卷期:
Volume 21,
issue 1
页码: 1-13
ISSN:0307-6970
年代: 1996
DOI:10.1111/j.1365-3113.1996.tb00595.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
Abstract.Nine species ofElectrogenafrom thirty‐one populations were investigated on the basis of five meristic and five ratio characters of the larvae. The attribution of populations to species was checked by a cluster analysis based on the generalized distances between pairs. Groups representing species were then subjected to a multiple discriminant analysis; discriminant functions and loadings were calculated. The correct attribution of individuals to species by the discriminant functions ranged from 97% to 100%. The analysis of discriminant loadings shows which characters contribute more to the discrimination of species. Although many species could be identified with some confidence by a sequential monothetic key based on meristic and qualitative characters, the discriminant analysis improves the effectiveness of identification of all specie
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