期刊
PARASITOLOGY
卷 137, 期 2, 页码 303-309出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0031182009991326
关键词
Heterorhabditis megidis; Steinernema carpocapsae; behaviour; foraging; habitat; body waving
类别
资金
- Forestry Commission
- College of Life Science and Medicine of the University of Aberdeen
Entomopathogenic nematodes (EPN) are soil-transmitted parasites and their foraging strategies ire believed to range from 'ambush' to 'cruise' foragers. However, research on their behaviour has not considered the natural habitat of these nematodes. We hypothesized that EPN behaviour Would be influenced by soil habitat quality and tested this hypothesis using 2 EPN species Steinernema carpocapsae (an 'ambusher') and Heterorhabditis megidis (a 'cruiser') in 2 contrasting habitats, sand and peat. As predicted from previous studies, in sand most S. carpocapsae remained at the point of application and showed no taxis towards hosts, but in peat S. carpocapsae dispersed much more and showed a highly significant taxis towards hosts. M. megidis dispersed well in both media, but only Showed taxis to-wards hosts in sand. In Outdoor mesocosms in which both species were applied, S. carpocapsae outcompeted H. megidis in terms of host finding in peat, whereas the opposite was true in sand. Our data suggest that these 2 EPN may be habitat specialists and highlight the difficulties Of studying soil-transmitted parasites in non-soil media.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据