Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 505327
Title Density-mediated indirect interactions alter host foraging behaviour of parasitoids without altering foraging efficiency
Author(s) Rijk, Marjolein de; Zhang, Xi; Loo, Juultje A.H. van der; Engel, Bas; Dicke, Marcel; Poelman, Erik H.
Source Ecological Entomology (2016). - ISSN 0307-6946
DOI http://dx.doi.org/10.1111/een.12325
Department(s) Laboratory of Entomology
PE&RC
EPS
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Density-mediated indirect interactions (DMIIs) - Field experiment - Foraging efficiency - Multi-herbivory - Non-host - 016-3970
Abstract

1. Foraging decisions of parasitoids are influenced by host density via density-mediated indirect interactions. However, in the parasitoid's environment, non-suitable herbivores are also present. These non-hosts also occur in different densities, which can affect a parasitoid's foraging behaviour. 2. The influence of non-host densities can be expressed during the first phase of the foraging process, when parasitoids use plant volatiles to locate plants infested by their host. They may also play a role during the second phase, when parasitoids use infochemicals from the host and plant to locate, recognise and accept the host. 3. By using laboratory and field setups, it was studied whether the density of non-host herbivores influences these two phases of the foraging behaviour of the parasitoid Cotesia glomerata as well as the parasitoid's efficiency to find its host, Pieris brassicae caterpillars. 4. The findings show that a high non-host density, regardless of the species used, negatively affected parasitoid preference for host-infested plants, but that the behaviour on the plant and the total host-finding efficiency of the parasitoids were not influenced by non-host density. 5. These results are discussed in the context of density-mediated indirect interactions.

Comments
There are no comments yet. You can post the first one!
Post a comment
 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.