Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/48546
Title: CHEMICAL DEFENCES IN WEBBUILDING SPIDERS
Authors: ZHANG SHICHANG
Keywords: Chemical defences, web-building spiders, ant deterrent, evolution, animals, mate binding,
Issue Date: 22-Aug-2013
Source: ZHANG SHICHANG (2013-08-22). CHEMICAL DEFENCES IN WEBBUILDING SPIDERS. ScholarBank@NUS Repository.
Abstract: Chemical defence, a major defensive means used by a wide range of organisms, is rarely reported in spiders. In this study, I investigated chemical defence and its evolution in web-building spiders. I found that golden web spider Nephila antipodiana (Nephilidae) deposits on the silk a pyrrolidine alkaloid (2-pyrrolidinone) that provides protection from ant invasion. This ant deterrent is biosynthesized by spider itself. It has has evolved only once, and lost up to seven times in orb-weaving spiders. I also demonstrated that chemical defence can be even used by males to defend against a conspecific female¿s cannibalism during mating
URI: http://scholarbank.nus.edu.sg/handle/10635/48546
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