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Your Position :Home->Past Journals Catalog->2011年48 No.4

Numerical analysis on morphometrics of nine geographical populationsof Tibetan migratory locust: Locusta migratoria tibetensis Chen phase solitarious
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Key Words: solitaria, Locusta migratoria tibetensis, numerical characteristics, geographical variation
Abstract:        The morphometrics of nine geographical populations of the solitary Tibetan migratory locust: Locusta migratoria tibetensis Chen were analyzed using Hierarchical Cluster Analysis (HCA) and Principal Component Analysis (PCA). Variables examined were tegmen length (E), posterior femur length (F), maximum width of head (C), tegmen length and posterior femur length ratio (E/F), posterior femur length and maximum head width ratio (F/C). There was a significant difference between the results obtained from HCA and PCA making it difficult to explain morphological variation in the above 5 parameters. Variation in the 5 morphometric parameters did not correspond to variation in either geography or environmental conditions. The results imply that the solitary Tibetan migratory locust does not display consistent geographic variation in the morphometric variables measured.
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