Feeding mediated web-building plasticity in a cobweb spider
作者机构：State Key Laboratory of Biocatalysis and Enzyme Engineering&Centre for Behavioral Ecology and EvolutionSchool of Life SciencesHubei UniversityWuhan430062China National Engineering Laboratory for Modern SilkCollege of Textile and Clothing EngineeringSoochow UniversitySuzhou 215123China Hubei Key Laboratory of Quality Control of Characteristic Fruits and VegetablesCollege of Life Science and TechnologyHubei Engineering UniversityXiaogan 432000China Hubei Key Laboratory of Regional Development and Environmental ResponseFaculty of Resources and Environmental ScienceHubei UniversityWuhan 430062China
出 版 物：《Current Zoology》 (动物学报（英文版）)
年 卷 期：2023年第69卷第6期
页 面：756-765页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 071002[理学-动物学]
基 金：supported by grants from the National Natural Sciences Foundation of China(NSFC-31970406/31801979/31772420/31573236/32270495) a grant from National Science&Technology Fundamental.Resources Investigation Program of China(Grant No.2019FY101800) CAS Key Laboratory of Tropical Forest Ecology,Xishuangbanna Tropical of Botanical Garden,Chinese Academy of Sciences(19CAS-TFE-3) a grant from the State Key Laboratory of Integrated Management of Pest Insects and Rodents,Institute of Zoology,Chinese Academy of Sciences(Grant No.IPM2208)
主 题：behavioral plasticity Campanicola campanulata cobweb spider defense foraging
摘 要：Behavioral plasticity has been proposed as a means by which animals alter their phenotypes in response to changing *** may display behavioral plasticity as a consequence of environmental *** detritus-based,bell-shaped cobweb spider Campanicola campanulata is an ideal model to study behavioral plasticity,because its web architecture is easy to be quantified,and the functions of different parts of the web are *** the plasticity of cobweb architecture has been reported in a few species,retreats as impor-tant defensive structures have rarely been considered before because retreats in most cobwebs are relatively small compared with the web *** studied the web-building behaviors of *** under different feeding *** set up 3 spider treatments with different feeding conditions:marginally well fed,moderately well fed,and extremely well fed,and observed the differences in the web architecture among *** addition,we measured the mechanical properties of anchor silk,and also calculated the foraging and defense investment of the *** results showed that marginally well-fed spiders build cobwebs with significantly longer length of anchor silk,lower retreat to the ground,more number and longer gumfooted lines,and larger capture area,while extremely well-fed spiders build cobwebs with significantly bigger retreat volume and higher height of retreat to the *** addition,marginally well-fed spiders invest significantly less during cobweb ***,there was no significant difference between the breaking force and elongation at break in anchor silk among different *** results demonstrated that marginally well-fed spiders invest more in foraging,and extremely well-fed spiders invest more in defense,and the spider made a balance between foraging and predator avoidance in response to changes in physiological *** study strengthens the current understanding of web construction in cobweb spider
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