Attraction between social crab spiders: silk pheromones in Diaea socialis
Attraction between social crab spiders: silk pheromones in Diaea socialis
复制标题
DOI：
10.1093/beheco/4.2.99
复制
发表时间：
1993-07
影响因子：
2.4
通讯作者：
T. Evans;B. Y. Main
中科院分区：
文献类型：
--
作者：
T. Evans;B. Y. Main
圈套网被用作社交蜘蛛群体内个体之间交流的媒介，因此被认为是蜘蛛目社会性进化所必需的。社交蜘蛛Diaeasocialis（Thomisidae）是一个例外，因为它不会结网。实验表明，丝会吸引所有蜘蛛，而丝上沉积的化学物质会吸引成年雌性蜘蛛，这表明该物种的群体生活是由信息素介导的。信息素对蜘蛛的吸引不同：雌性蜘蛛不会被幼年的丝吸引，并且会排斥怀孕的雌性。该信息素看似稳定但易挥发，溶于乙醚，溶解后仍保持其活力。发现 7-8 种不同化合物的分子离子质量在 220-281 个原子单位范围内；信息素可以是其中的一种或几种的组合。
The snare web is used as a medium for communication between individuals within colonies of social spiders and has therefore been suggested as necessary for the evolution of sociality in the Araneae. The social spiderDiaea socialis(Thomisidae) is an exception because it does not build a snare web. Experiments demonstrate that silk attracts all spiders and that a chemical deposited onto the silk attracts adult female spiders, suggesting that the group living of this species is mediated by a pheromone. The pheromone attracts spiders differentially: females are not attracted to juvenile silk, and it repels gravid females. The pheromone appears to be stable but volatile, is ether-soluble, and retains its viability after dissolution. Molecular-ionic masses for 7-8 different compounds were found in the range 220–281 atomic units; the pheromone may be one or a combination of several of these.