Effects of reed population pattern on spatial distribution of Locusta migratoria manilensisin Nandagang wetland
Author of the article:JI Rong1,2**, XIE Bao-Yu2, LI Dian-Mo2,YUAN Hui1, YANG Hong-Sheng1
Author's Workplace：1.College of Life Sciences and Chemistry,Xinjiang Normal University，Urumqi 830054，China; 2.State Key Laboratory Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100080，China
Key Words：spatial patterns;geostatistics;Locusta migratoria manilensis;Phragmites australis;Nandagang wetland
Abstract：
The spatial distribution pattern of reed and Locusta migratoria manilensis(Meyen) were studied. The results showed that the both distribution patterns were best described using spherical models,which had spatial autocorrelation at distances about 502 m and 814 m, respectively. Locusts mainly located in northeast and southeast areas with worse reed conditions (30～70 individuals&8226;m-2), but were rarely found in west and south areas with better reed conditions (>120,70～120 individuals&8226;m-2 respectively) and in north areas with the worst reed conditions (<30 individuals&8226;m-2), which showed significant correlation between locust disrtibution and reed densities.