生态学杂志2013，Vol.32Issue(1)：135-141,7.
呼和浩特地区马铃薯田蚜虫的种群动态
Population dynamics of aphids in potato fields in Hohhot, Inner Mongolia
摘要
Abstract
A field survey was conducted on the population dynamics of aphids in potato fields in Hohhot, aimed to provide indispensable foundation for the monitoring and control of the aphids in potato fields.The main aphids in the potato fields in Hohhot were green peach aphid ( Myzus per-sicae) and cotton aphid (Aphis gossypii), and their spatial patterns were of aggregated. The bas-ic components of the aggregated distribution were colonies, and the aggregation intensity de-creased with the increase of the population density. By using the optimal segmentation method, the population dynamics could be divided into four periods: (1) colonization period: in early-middle June, with the increasing of air temperature and the growth of potato seedlings, alate aphids began to immigrate into potato fields, and the aphids only distributed on seldom plants, with lower quantity but higher aggregation intensity. (2) slow-increase period: from late June to middle July, with the reproduction of aphids, the aphid density had a slow increase, and the aphids diffused gradually with a higher aggregation intensity. (3) quick increase period: from late July to middle August, due to the rapid reproduction of aphids, the aphid density increased sharply, and the aphids distributed over the whole field with a decrease of aggregation intensity, and (4) eclipse period: after late August, with the decreasing of air temperature and the aging and withering of potato plants, many alate aphids emigrated from potato fields, the aphid density declined quickly, and the aphids only distributed on seldom remained living plants with the ag-gregation intensity somewhat increased again.关键词
马铃薯/蚜虫/空间格局/种群动态Key words
potato/aphid/spatial pattern/population dynamics分类
生物科学引用本文复制引用
卜庆国,庞保平,张若芳,孙清华..呼和浩特地区马铃薯田蚜虫的种群动态[J].生态学杂志,2013,32(1):135-141,7.基金项目
国家马铃薯产业技术体系建设专项(GNYJS-2)资助. （GNYJS-2）
