腐食酪螨种群消长与生态因子关联分析  

Gray Sequence Analysis of Ecological Factors in Relation to Tyrophagus putrescentiae

作　　者：陶莉[1] 李朝品[1] 

机构地区：[1]安徽理工大学医学院病原生物学教研室,淮南232001

出　　处：《中国寄生虫学与寄生虫病杂志》2007年第5期394-396,共3页Chinese Journal of Parasitology and Parasitic Diseases

基　　金：安徽省教育厅自然科学基金重点资助项目(No.2006KJ101A)~~

摘　　要：目的探讨仓储害螨优势种腐食酪螨种群消长及其与生态因子的关系。方法在安徽淮南地区粮仓,自2005年3～11月每月5、15、25日定点采集样本,测定并记录仓温及相对湿度,鉴定腐食酪螨及其天敌并计数。采用灰色关联度分析法对数据进行分析。结果腐食酪螨种群数量高峰期在6月下旬和9月中旬,捕食螨对该螨有较为明显的跟随效应。3种生态因子与腐食酪螨幼螨量消长的关联度依次为仓温>天敌数量>相对湿度;与若成螨量消长的关联度依次为相对湿度>天敌数量>仓温;与整个种群数量关联度依次为相对湿度>仓温>天敌数量。结论相对湿度、仓温、天敌数量为影响腐食酪螨种群消长的重要生态因子。Objective To make gray sequence analysis of the ecological factors to the population fluctuation of Tyrophagus putrescentiae. Methods Samples of T.putrescentiae and its natural enemy were collected, examined and counted in every ten days, relative humidity and temperature were recorded simultaneously. Data were analyzed by gray sequence analysis. Results The population of T.putrescentiae in the wheat warehouse reached peaks in late June and mid-September respectively, and that of the predatory mites showed a following efficiency. The gray sequence of the ecological factors to the larvae of T.putrescentiae was temperature〉natural enemy〉relative humidity; to the nymphs and adults, it was relative humidity〉natural enemy〉temperature; and to the population, it was relative humidity〉temperature〉natural enemy. Conclusion Relative humidity, temperature and natural enemy were important ecological factors affecting the population dynamic of T.putrescentiae, and the prevalence curve of T.putrescentiae shows a bimodal pattern.

关 键 词：腐食酪螨 灰色关联度 种群动力学 

分 类 号：R384.429[医药卫生—医学寄生虫学]