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《Jiangsu Journal of Agricultural Sciences》 2015-03
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Effect of n-pentadecane on wolf spider's olfactory orientation

WANG Bo;HUANG Ruo-yi;TAN Zhao-jun;HUANG Ting;YAN Heng-mei;Zhuhai Campus,Beijing Normal University;College of Life Science,Hunan Normal University;  
To explore the effect of a volatile compound n-pentadecane of wolf spiders' prey,fruit flies,on wolf spiders' 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' selection 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 correlations with n-pentadecan odor source( P 0. 01). Selection index and residence time were positively correlated with temperature 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.
【Fund】: 国家自然科学基金项目(31172107);; 湖南省研究生科研创新项目(CX2014B198)
【CateGory Index】: S476.2
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