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Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Your Position :Home->Past Journals Catalog->2014年51 No.4

Effect of different sensory stimuli on the predatory and approach behavior of the funnel-web spider Allagelena difficilis (Fox)(Araneae: Agelenidae)
Author of the article:JING Qi ZHOU Qiong** OU Dan-Xia TAN Can
Author's Workplace:College of Life Science, Hunan Normal University, Changsha 410081, China
Key Words:Allagelena difficilis, sensation, prey-capture, approach behavior
Abstract:     [Objectives]  Spiders senses play an important role in the process of prey detection and capture. By studying the effects of Allagelena difficilis (Fox) senses on their prey-capture and approach behavior,, we can gain a better understanding the primary factors underlying funnel-web spider predation. [Methods]  Y-tube olfactometer test, visual shielding test and web-removal test were conducted under laboratory conditions. [Results]  The visual and olfactory senses of A. difficilis had little influence on its approach to prey and predation behavior, but the spider’s web had a significant effect on these behaviors: there was no significant difference in the number of A.difficilis that chose the fork containing preys in the Y-tube olfactometer and those that did not (P>0.05), and prey consumption of A.difficilis whose eyes were shielded with black ink was also not significantly different to those whose eyes were not shielded (P>0.05). However, the prey consumption of spiders whose webs had been removed was significantly lower (P<0.01) than those which had not had their webs removed. After the removed webs had been repaired, the prey consumption of the both spider groups was similar. [Conclusion]  A. difficilis depends primarily on mechanical senses transmitted via its web to detect and capture prey rather than on visual and olfactory senses. Vibratory / acoustic and tactile cues may be important factors affecting the prey-capture behavior of A. difficilis.
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