您好，欢迎访问河北省农林科学院 机构知识库！
河北省农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Functional response and prey stage preference of Neoseiulus barkeri on Trasonemus confusus

文献类型： 外文期刊

作者： Li, Litao 1 ; Jiao, Rui 1 ; Yu, Lichen 1 ; He, Xiong Zhao 2 ; He, Limin 1 ; Xu, Changxin 1 ; Zhang, Linlin 1 ; Liu, Jinli 1 ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Changli Inst Pomol, Changli 066600, Peoples R China

2.Massey Univ, Sch Agr & Environm, Private Bag 11222, Palmerston North, New Zealand

关键词： phytoseiid; functional response; stage preference; prey population

期刊名称：SYSTEMATIC AND APPLIED ACAROLOGY （ 影响因子：1.421； 五年影响因子：1.254 ）

ISSN： 1362-1971

年卷期： 2018 年 23 卷 11 期

页码：

收录情况： SCI

摘要： The fungivorous Tarsonemus confusus Ewing is a tarsonemid mite causing a so call 'black-dot' symptom on the bagged apple fruit in North China, and the phytoseiid mite Neoseiulus barkeri Hughes is a cosmopolitan generalist predator of many agricultural and horticultural pests. In the present study, we evaluated the biological control potential of N. barkeri on T. confusus, by determining its functional response type to prey density of and prey stage preference on both active and quiescent life stages of T. confusus (i.e., eggs, larvae, quiescent larvae and female adults). We found that N. barkeri exhibited all three types of functional response. When fed on eggs and quiescent larvae of T. confusus, N. barkeri had a Type II functional response (i.e., inverse density-dependent predation rate); however, a Type I functional response (i.e., density-independent predation rate) was detected when N. barkeri preyed on T. confusus larvae and a Type III functional response (i.e., sigmoid density-dependent predation rate) when preyed on T. confusus adults. We further showed that the 'constant prey' functional response models fit our data better than the 'depleted prey' models, as the predator left and reencountered the previously fed prey which reduced its searching efficiency. When all active and quiescent life stages of T. confusus were available, N. barkeri significantly preferred larvae over other prey stages for feeding. Our results imply that due to its quick response to the increasing prey larval and adult densities, N. barkeri could consume a great number of active prey and is thus capable to decline the current fruit damage caused by prey feeding and to potentially prevent the prey population build-up later in the season. Furthermore, predators with Type II response may be efficient at low prey densities, thus augmentative release of N. barkeri early in the season may also suppress the egg and quiescent larva populations of T. confusus. Knowledge from this study provides insights into our understandings in the biological control ecology of N. barkeri.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：河北省农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台