Tomić Vladimir, Mąkol Joanna, Stamenković Srdjan, Büchs Wolfgang, Prescher Sabine, Sivčev Ivan, Graora Draga, Sivčev Lazar, Gotlin-Čuljak Tatjana, Dudić Boris
Institute of Zoology, Faculty of Biology, University of Belgrade, Studentski Trg 3, Belgrade, Serbia,
Exp Appl Acarol. 2015 Aug;66(4):575-87. doi: 10.1007/s10493-015-9909-0. Epub 2015 Apr 28.
An experiment on three differently-managed agricultural fields in Ahlum, Germany, which aimed at establishing the impact of different management systems on the biodiversity of predators and decomposers, yielded a significant number of spiders parasitized by larvae of Trombidium brevimanum (Actinotrichida, Parasitengona, Trombidiidae). Spider data from the whole sampling period (September 2010-July 2012), indicated that ectoparasitic larvae were recorded only on spiders in pitfall traps in the period of June-July 2011. In this period, only eight species of Linyphiidae--out of 42 species assigned to nine spider families recorded from the study area--were parasitized by mites; considerable levels of parasitism were recorded on Erigone atra, E. dentipalpis, and Oedothorax apicatus. The highest prevalence of parasitism was recorded on the organic field for E. atra (29%), while on the integrated and conventional fields significantly fewer parasitized spiders were observed. The preferred attachment sites on the spider host were regions with softer cuticle, especially regions on the carapace and on the abdomen, adjacent to the pedicel.
在德国阿尔卢姆的三块管理方式不同的农田进行了一项实验，旨在确定不同管理系统对捕食者和分解者生物多样性的影响。实验发现大量蜘蛛被短跗绒螨（动羽螨目，寄生螨亚目，绒螨科）的幼虫寄生。整个采样期（2010年9月至2012年7月）的蜘蛛数据表明，仅在2011年6月至7月期间在陷阱诱捕器中的蜘蛛身上记录到了体外寄生幼虫。在此期间，在研究区域记录的隶属于9个蜘蛛科的42种蜘蛛中，只有8种皿蛛科蜘蛛被螨虫寄生；在阿托埃氏蛛、齿螯埃氏蛛和尖腹微蛛上记录到了相当程度的寄生情况。阿托埃氏蛛在有机农田中的寄生率最高（29%），而在综合农田和传统农田中观察到的被寄生蜘蛛明显较少。蜘蛛宿主上的首选附着部位是角质层较软的区域，特别是靠近柄节的头胸部和腹部区域。
