Multivariate Analyses of Elytral Spot Patterns in the Phytophagous Ladybird Beetle Epilachna vigintioctopunctata (Coleoptera, Coccinellidae) in the Province of Sumatera Barat, Indonesia
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概要
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We analyzed geographic trends of elytral spot variations in the phytophagous ladybird beetle Epilachna vigintioctopunctata in the Province of Sumatera Barat, Indonesia. An UPGMA analysis revealed two distinct clusters of populations, one of which was further subdivided into two minor clusters. A principal component analysis also indicated the presence of the two major clusters. However, a closer analysis of the data suggested that the two clusters represented a complicated intraspecific variation rather than two distinct taxa. The dichotomy of the populations seemed to be caused by the pausity of samples at particular altitudes, which makes a continuous series of variation as if they are composed of two distinct subsets. The first two principal components accounted for approximately 90% of the variance. The first component mainly expressed the number of elytral spots, and the scores increased with an increase of altitude. The second component expressed the frequencies of particular types of spot confluences.
- 社団法人日本動物学会の論文
- 1994-12-15
著者
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Katakura H
Hokkaido Univ. Hokkaido Jpn
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Saitoh S
Hokkaido Univ. Sapporo Jpn
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ABBAS Idrus
Department of Biology, Faculty of Science, Andalas University
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Abbas I
Department Of Biology Faculty Of Science Andalas University
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Katakura Haruo
Division Of Sciences Graduate School Of Science Hokkaido University
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Katakura Haruo
Division Of Biological Sciences Graduate School Of Science Hokkaido University
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Nakamura K
Center For Experimental Medicine Institute Of Medical Science University Of Tokyo
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Nakamura Koji
Division Of Social And Environmental Medicine Department Of Community Preventive Medicine Niigata Un
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Abbas Idrus
Department Of Biology Faculty Of Science Andalas University
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Saitoh Satoru
Division Of Biological Sciences Graduate School Of Science Hokkaido University
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Nakajima Kazue
Department Of Public Health Osaka University Medical School
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NAKAMURA Koji
Ecological Laboratory, Faculty of Science, Kanazawa University
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Katakura Haruo
Division Of Biological Science Graduate School Of Science Hokkaido University
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Nakamura Koji
Ecological Laboratory Faculty Of Science Kanazawa University
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