Liang Yinquan, Gao Baojia, Zhen Zhixian, Wang Jiangzhu, Liu Zhiqun, Niu Jianzhong
Hebei Agricultural University, Baoding 071001, China.
Ying Yong Sheng Tai Xue Bao. 2006 Mar;17(3):472-6.
Employing community character indices and canonical correlation analysis, this paper studied the insect communi structure and its relationship with the occurrence degree of Ceroplastes japonicus in jujube orchards. The results showed that based on the community discrepancy coefficient of 0.20, the insect community in various sampling fields could be categorized into two groups, i. e. , plain and hill. The occurrence of C. japonicus in plain region was heavier, with lower insect community diversity, smaller species number, and higher dominance of phytophagous insects, while that in hill region was lighter, with higher insect community diversity, more abundant species, and higher dominance of natural enemy insects. Canonical correlation analysis indicated that at the significant level of 0.05, the first and second pairs of canonical correlation coefficients of C. japonicus occurrence characters and insect community characters were 0. 9904 and 0.8538, respectively, suggesting that the occurrence of C.japonicus was significantly correlated with the characters of insect community. Community diversity (with the coefficient of 3. 4893), species number (with the coefficient of 5.8060), and dominance (with the coefficient of 6.9353) had most important effects on the occurrence of C. japonicus.
本文运用群落特征指数和典范相关分析方法，研究了枣园昆虫群落结构及其与日本龟蜡蚧发生程度的关系。结果表明，以0.20的群落差异系数为依据，各采样地的昆虫群落可分为平原和山地两组。日本龟蜡蚧在平原地区发生较重，昆虫群落多样性较低，物种数较少，植食性昆虫优势度较高；而在山地地区发生较轻，昆虫群落多样性较高，物种较为丰富，天敌昆虫优势度较高。典范相关分析表明，在0.05显著水平下，日本龟蜡蚧发生特征与昆虫群落特征的第一、二对典范相关系数分别为0.9904和0.8538，说明日本龟蜡蚧的发生与昆虫群落特征显著相关。群落多样性（系数为3.4893）、物种数（系数为5.8060）和优势度（系数为6.9353）对日本龟蜡蚧的发生影响最为重要。
