Influence of Landscape Patterns on Population Density of Monochamus alternatus (Coleoptera: Cerambycidae)

【Objective】This study aims to clarify the relationship between landscape patterns and population density and adulthood occurrence period of Monochamus alternatus,which may lay the theoretical foundation for formulating the technical measures to control the population of M.alternatus with landscape patterns. 【Method 】With the method of landscape ecology,the population number of M.alternatus in Pinus massoniana stands in 4 townships of Shunchang County,Fujian Province was monitored by the trapping method.The occurrence period of M.alternatus adulthood was divided into three periods and time dynamic model was established.ARCGIS,ENVI and FRAGSTATS software were used to extract and divide the landscape information and calculate the landscape index.The correlations between the landscape index at the Class-level and the landscape-level and the population density and adulthood occurrence period of M.alternatus were analyzed. 【Result】A total of 139 321 M.alternatus were captured in the four study areas.The peak period