散居型西藏飞蝗九个地理种群形态特征的数量分析
Numerical analysis on morphometrics of nine geographical populationsof Tibetan migratory locust: Locusta migratoria tibetensis Chen phase solitarious
牙森·沙力1**，高松1**，白松2，农向群1，涂雄兵1，张泽华1***
点击：2073次 下载：0次
DOI：
作者单位：1中国农业科学院植物保护研究所北京100193；农业部生物防治重点开放实验室北京100081；农业部锡林浩特草原有害生物防治重点野外科学观测试验站内蒙古锡林浩特026000；2西藏自治区畜牧兽医总站拉萨850000
中文关键词：散居型， 西藏飞蝗， 数量性状， 地理变异
英文关键词： solitaria, Locusta migratoria tibetensis, numerical characteristics, geographical variation
中文摘要： 为阐明西藏飞蝗Locusta migratoria tibetensis Chen散居型地理种群数量性状的地理变异，将散居型西藏飞蝗9个地理种群雌、雄个体的前翅长度（E）、后足股节长度（F）、头宽（C）、前翅长度与后足股节长度比值（E/F）、后足股节长度与头宽比值（F/C）5项形态特征参数进行系统聚类分析和主成分分析。结果表明，系统聚类分析和主成分分析结果有显著差异。应用这些参数对地理种群形态特征的地理变异进行分析时难以提供明确的结果，无法解释其形态特征变异与自然地理条件之间的关系，说明西藏飞蝗不同地理种群的散居型尚未形成自然类型。
英文摘要： 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.