CAJ | 학술논문

为了探明狼蛛猎物果蝇体表挥发性化合物正十五烷对狼蛛觅食过程中嗅觉定位的影响，采用Y型嗅觉仪法进行单因子变量试验，研究狼蛛对不同浓度(10％、20％、40％和80％)、距离(5 cm、10 cm、15 cm和20 cm)、温度(17℃、23℃和28℃)条件下对正十五烷的嗅觉反应。结果显示：浓度为20％时狼蛛对正十五烷气味源端的选择指数最高和在该端的停留时间最长，显著高于其他浓度时的选择指数和停留时间( P<0.05)；随着距离的延长，狼蛛在正十五烷气味源端的选择指数和停留时间与距离呈显著负相关关系( P<0.01)；随着温度的上升，狼蛛在正十五烷气味源端的选择指数和停留时间与温度呈显著正相关关系( P<0.01)。可见，狼蛛对正十五烷气味有一定的嗅觉反应，可感受猎物的挥发性信息素协助定位猎物。
위료탐명랑주작물과승체표휘발성화합물정십오완대랑주멱식과정중후각정위적영향，채용Y형후각의법진행단인자변량시험，연구랑주대불동농도(10％、20％、40％화80％)、거리(5 cm、10 cm、15 cm화20 cm)、온도(17℃、23℃화28℃)조건하대정십오완적후각반응。결과현시：농도위20％시랑주대정십오완기미원단적선택지수최고화재해단적정류시간최장，현저고우기타농도시적선택지수화정류시간( P<0.05)；수착거리적연장，랑주재정십오완기미원단적선택지수화정류시간여거리정현저부상관관계( P<0.01)；수착온도적상승，랑주재정십오완기미원단적선택지수화정류시간여온도정현저정상관관계( P<0.01)。가견，랑주대정십오완기미유일정적후각반응，가감수작물적휘발성신식소협조정위작물。
To explore the effect of a volatile compound n-pentadecane of wolf spiders’ prey, fruit flies, on wolf spi-ders’ olfactory orientation during foraging, a series of single factor experiments were conducted by Y-shaped olfactometer method. The wolf spiders’ responses to n-pentadecan in different concentrations (10%, 20%, 40% and 80%), distances (5 cm, 10 cm, 15 cm and 20 cm), temperatures (17 ℃, 23 ℃ and 28 ℃) were studied, then the wolf spiders’ selec-tion index and residence time were counted. The wolf spiders showed the highest selection index and the longest residence time to 20% n-pentadecan. With the extension of distance, the selection index and residence time showed negative correla-tions with n-pentadecan odor source (P<0. 01). Selection index and residence time were positively correlated with tempera-ture as it rose (P<0. 01). In conclusion, wolf spiders are responsive to the smell of n-pentadecane, which help to feel the prey’ s volatile compound so as to locate preys.