摘要
采用视觉屏蔽法和Y型嗅觉仪法研究了拟环纹豹蛛Pardosa pseudoannu lata.雌性成虫对水稻害虫白背飞虱Sogatella furcifera嗅觉反应。在视觉屏蔽的条件下,拟环纹豹蛛对被刺死猎物的捕食成功率为78.95%,高于没有视觉屏蔽蜘蛛的捕食成功率(68.18%),但2者间差异不显著;而在Y型嗅觉仪中,34.38%拟环纹豹蛛雌性成虫能正确选择猎物的方向,显著高于错误的选择(6.25%)。因此,拟环纹豹蛛能依靠嗅觉正确判断猎物的方向而进行捕食活动。
The olfactory responses of Pardosa pseudoannulata female adults to Sogatella furcifera were investigated primarily with two methods, （a）eyes blacked with black ink and （b）Y-shaped olfactometer in the present paper. Undei the condition of no vision, the successful rate （78. 95%）of P. pseudoannulata females preying on dead whitebacked planthoppers was higher than that （68.18%）of control with normal vision, but there was not significant difference between them. In the Y-shaped olfactometer, the rate （34.38%）of P. pseudoannulata females choosing prey direction was significantly higher than that of choosing without preys （6. 25%）. It could be therefore concluded that P. pseudoannulata females could respond to the odor of their preys.
出处
《蛛形学报》
2005年第2期122-125,共4页
Acta Arachnologica Sinica
关键词
拟环纹豹蛛
白背飞虱
嗅觉
捕食作用
Pardosa pseudoannulata
Sogatella furci fera
Olfactory
Predation
