Community succession patterns of pests and natural enemies in jujube orchard ecosystem
Shi, G.; Liu, S.; Cao, H.; Huang, M.; Xi, Y.; Zhao, L.; Li, D.; Feng, J.
Ying Yong Sheng Tai Xue Bao 16(11): 2130-2134
2005
ISSN/ISBN: 1001-9332 PMID: 16471353 Document Number: 585330
Through investigation and by the methods of optimal partitioning, principal component analysis, and one-or two-dimensional ordination, this paper analyzed the main groups and succession trends of the pest and natural enemy communities at a jujube orchard of Taigu area. The results showed that the communities had more obvious dominant factors and temporal succession pattern. The first three principal components of the communities had a bigger variation, with an obvious follow effects. The community succession was temporally divided into four stages, i. e., in the periods of pre-budding, leaf expanding and blooming, fruiting, and maturing. The dominant species of pests and their natural enemies were demonstrated.