Cuticular compounds inhibit cannibalism of early-instar spiderlings by pulli-carrying Pardosa pseudoannulata females
作者机构：Key Laboratory of Integrated Management of Crop Diseases and Pests(Ministry of Education)College of Plant ProtectionNanjing Agricultural UniversityNanjingChina
出 版 物：《Insect Science》 (昆虫科学（英文版）)
年 卷 期：2022年第29卷第5期
页 面：1461-1469页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 09[农学]
基 金：supported by the National Natural Science Foundation(32172482) Fundamental Research Funds for the Central Universities(KJQN201809) the National Natural Science Foundation(31772185,31972296)
主 题：behavior cannibalism cuticular compound Lycosidae maternal care Pardosa pseudoannulata
摘 要：Cannibalism is common in *** spider(Lycosidae)females,which exhibit extensive maternal care,have been reported to cannibalize less when they are carrying egg sacs and *** a laboratory experiment,we demonstrated that cannibalism of early-instar spiderlings(EIS)by a wolf spider(Pardosa pseudoannulata)mother was almost completely inhibited when she was carrying *** with virgin and mated-females,mother spiders tolerated more and predated fewer spiderlings,including gregarious pulli and newly dispersed spiderlings(NDS).Cannibalism of EIS by females during their reproductive period exhibited a V-shaped pattern,with a gradual decrease from the egg sac-carrying to pulli-carrying(PC)stage,and a recovery from the PC stage to post-reproductive(PR)***,there was 0 cannibalism at the PC *** females exhibited no interest in pulli,while PR females were attracted to and predated pulli and NDS as they did their natural prey,Nilaparvata ***,PC females captured and released NDS in a foraging assay,although attraction was observed from olfactometer *** mothers possessed a cuticular volatile profile that was closer to that of pulli and NDS than to that of PR ***,NDS cuticular extract provoked an electrophysiological response in legs of PC ***,cuticular compound-mediated chemical communication may be involved in inhibiting cannibalism of EIS by spider mothers,and especially in eliminating cannibalism by PC *** studies will aim to characterize the specific cuticular compounds and chemoreception mechanism in females,which will facilitate our understanding of intraspecific recognition and cannibalism in spiders.
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