摘要
本文首次报道马六甲肉食螨Ｃｈｅｙｌｅｔｕｓｍａｌａｃｃｅｎｓｉｓ对贮存物中重要害螨，害嗜鳞螨的捕食效应研究。马六甲肉食螨的雌螨、雄螨、前若螨、后若螨对害嗜鳞螨的成螨的功能反应均属ＨｏｌｌｉｎｇⅡ型。温度对马六甲肉食螨捕食影响较大，在１２－２９℃范围内随着温度上升其捕食量增加，其直线回归方程为Ｙ＝－１．０９６４＋０．５０８４×（ｒ＝０．９７６５）。在猎物密度不变情况下，马六甲肉食螨捕食猎物的数量是随着自身密度的增加而下降，其方程为Ａ＝１６．５４６Ｐ￣（－０．５４２５）（ｒ＝－０．９６９９）．用寻找效率ａ与处理时间Ｔｈ之比ａ／Ｔｈ来衡量天敌对害虫控制能力，其值越大则控制猎物能力就越强。因此本试验表明：马六甲肉食螨控制害嗜鳞螨的能力是雌螨＞雄螨＞前若螨＞后若螨。
This paper deals with the effect of a major predator. Cheyletus malaccensis. onthe storage mite. Lepidoglgphus destuctor. Results showed that all the protonymph. tritonymph. female and male adults of C. malaccensis. preying on. destructor fit Holling′sfunctional response type Ⅱ.Temperature is a major factor affecting the predator. Theamounts of prey increase as temperature raising from 12 to 29℃ Its equation of linearregressionis:Y=-1.0964+0.5084×(r=0.9765)The relationship between searching efficiency(A)and the number of female predator(P)can be determined by the following model:A=16.54p￣(-0.5725)(r=-0.9699)The predatory effects of C. malaccensis on L. destructor in different stages are:femaleadult>male adult>protonymph>tritonymph.
出处
《华东昆虫学报》
1996年第1期65-68,共4页
Entomological Journal of East China
基金
福建省自然基金
