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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2014 Vol.33 No.1

The Response of Pardosa pseudoannulata’s Chemoreceptor in Locating the Prey
Author of the article:WANG Bo1,2, HUANG Ting1, HAN Meng2, WANG Xinlei2, CHANG Yuting2, HUANG Xinyi2, LI Yanyu2, YAN Hengmei1*
Author's Workplace:(1. School of Life Sciences, Hunan Normal University, Changsha 410081, China; 2. Beijing Normal University, Zhuhai Campus, Zhuhai, Guangdong Province 519087, China)
Key Words:wolf spider (Lycosa); chemoreceptor; tissue fluid; Drosophila melanogaster
Abstract:To evaluate the function of the wolf spider (Lycosa) olfactory during predation, the sensitivity of wolf spider against odorous and odorless sources of Drosophila melanogaster were compared laboratorially. At close distances, the selection index of the wolf spider for the odorous tissue fluid was significantly higher than that of odorless source. The residence time also showed a similar changing trend. However, with the increasing of distance, the sensitivity of wolf spider against odorous source would be decreased. Significantly decreased selection index was observed when the distance was longer than 11 cm. Therefore, the sensitivity of wolf spider to the odor would be elevated along with the decreasing of the distance to the odorous source, whereas the sensitivity would be decreased as the distance increased. Moreover, the distance against odorous source showed clear correlation with the selection index. The result showed that the wolf spider had a high sensitivity to the odor of body fluid of D. melanogaster than the odor of tissue fluid.
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