The effects of prey lipid on female mating and reproduction of a wolf spider  

作　　者：Qingguo FENG Lelei WEN Jiayi MA Long YU Changchun LI Xiaoguo JIAO 

机构地区：[1]State Key Laboratory of Biocatalysis and Enzyme Engineering,Center for Behavioral Ecology and Evolution,School of Life Sciences,Hubei University,Wuhan 430062,China [2]Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables,College of Life Science and Technology,Hubei Engineering University,Xiaogan 432000,China

出　　处：《Current Zoology》2022年第6期726-733,共8页动物学报（英文版）

基　　金：This study was supported by grants from the National Natural Science Foundation of China(NSFC)(30800121).

摘　　要：As predators,the macronutrients spiders extract from their prey play important roles in their mating and reproduction.Previous studies of macronutrients on spider mating and reproduction focus on protein,the potential impact of prey lipid content on spider mating and reproduction remains largely unexplored.Here,we tested the influence of prey varying in lipid content on female mating,sexual cannibalism,reproduction,and offspring fitness in the wolf spider Pardosa pseudoannulata.We acquired 2 groups of fruit fly Drosophila melanogaster that differed significantly in lipid but not protein content by supplementing cultural media with a high or low dose of sucrose on which the fruit flies were reared(HL:high lipid and LL:low lipid).Subadult(i.e.,1 molt before adult)female spiders that fed HL flies matured with significantly higher lipid content than those fed LL flies.We found that the mated females fed with HL flies significantly shortened pre-oviposition time and resulted in a significantly higher fecundity.However,there was no significant difference in female spiders varying in lipid content on other behaviors and traits,including the latency to courtship,courtship duration,mating,copulation duration,sexual cannibalism,offspring body size,and survival.Hence,our results suggest that the lipid content of prey may be a limiting factor for female reproduction,but not for other behavioral traits in the wolf spiders P.pseudoannulata.

关 键 词：LIPID MATING MACRONUTRIENTS Pardosa pseudoannulata REPRODUCTION survival 

分 类 号：Q95[生物学—动物学]