厦门地区不同生境的恙螨种群组成与密度

报道厦门耕作区和旅游景区不同生境的恙螨种群组成与密度．旅游景区的恙螨种类比耕作区丰富，计２科６属７种，地里纤恙螨为优势种，占８９．１３％，其次是中华无前恙螨，占８．２８％，其余５种占２．５９％．耕作区１科４属５种．优势种为中华无前恙螨，占９３．７１％，羊城背展恙螨次之，占５．８１％，其余３种占０．４８％．６种生境的恙螨密度依次是水稻种植地，杂草灌木地，蔬菜种植地，山坡树林地，旱作种植地和建筑物周围．

Population Composition and Density of Chigger Mite under Different Habitat in Xiamen Area

The population composition and density of the chigger mite under different habitat in Xiamen crops area and scenic spots are reported. The chigger mite species of scenic spot are much more than that of crops area, up to 2 families 6 genera 7 species,among which Leptotrombidium deliense is the predominant species with the biggest share of 89. 13%,and Walchia chinensis comes the second,making up of 8.28% and the rest 5 species counting 2. 59%. There are 1 family 4 genera 5 species in crops area,in which the predominant species is Walchia chinensis, which accounts for 93.71%,Gahrliepia yangchenensis comes the second for 5. 81 % and the rest 3 species for 0. 48%. The chigger mite density of the 6 habitat takes turns of paddy field,weed shrubbery, vegetable field, hillside woods, nonirrigated farmland and building surroundings.