首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Prey preference of the wolf spider,Pardosa pseudoannulata (Boesenberg et Strand)
Authors:K L Heong  Saad Bleih and Elsa G Rubia
Institution:(1) Entomology Division, International Rice Research Institute, Los Ba?os, Philippines;(2) Present address: Rice Research and Training Center, Sakha, Kafr El-Sheikh, Egypt
Abstract:Summary Functional responses of the wolf spider,Pardosa pseudoannulata (Boesenberg et Strand) attacking the rice brown planthopper,Nilaparvata lugens (St?l.), and the mirid predatorCyrtorhinus lividipennis Reuter were both those of Holling Type II. The attack rate was higher and handling time lower forC. lividipennis. However, when caged with the two prey, the wolf spider showed a significant preference forN. lugens at a lower prey proportion. Proportions of prey attacked were significantly different from the expected ratios of prey available as well as from the predicted preferences derived from the functional response parameters. As proportions ofN. lugens attacked changed from greater to less than expected as the proportions ofN. lugens available increased, a “reverse switch” behaviour seems to be evident.
Keywords:preference            Pardosa pseudoannulata            switching            Nilaparvata lugens                      Cyrtorhinus lividipennis
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号