【作者】 刘诗奇； 潘涌智；

【Author】 LIU Shi-qi,PAN Yong-zhi (Faculty of Conservation Biology,Southwest Forestry University,Kunming Yunnan 650224,China)

【机构】 西南林学院保护生物学学院；

【摘要】 采用多个聚集度指标法和回归分析法对红圆蹄盾蚧雌成虫的空间分布格局进行了测定,结果表明:其空间分布型为聚集分布;在回归分析检验中.以L_a-m模型的拟合效果最优。用Blakith提出的"聚集均数"法对聚集原因分析表明:红圆蹄盾蚧雌成虫的聚集现象是由环境因素引起的。更多还原

【Abstract】 The spatial distribution pattern of Aonidiella aurantii Maskell larvae was studied by means of multiple aggregation indices,and regression analysis methods.The results showed that the spatial distribution pattern of the larvae belonged to the aggregation distribution.It was proven by the regression analyses that the L_a-m regression model had the best simulation effect.In addition,the aggregation average method by Blackith was applied to analyze the aggregation reasons of Aonidiella aurantii Maskell.The spatial distribution pattern of the larva was positively related to its environmental factors.更多还原