Show simple item record

dc.contributor.authorAnderson, Annette
dc.contributor.authorMcCormack, Stephen
dc.contributor.authorHelden, Alvin
dc.contributor.authorSheridan, Helen
dc.contributor.authorKinsella, Anne
dc.contributor.authorPurvis, Gordon
dc.date.accessioned2018-09-20T15:59:48Z
dc.date.available2018-09-20T15:59:48Z
dc.date.issued2010-12-23
dc.identifier.citationAnderson, Annette; McCormack, Stephen; Helden, Alvin; Sheridan, Helen; Kinsella, Anne; Purvis, Gordon (2010). The potential of parasitoid hymenoptera as bioindicators of arthropod diversity in agricultural grasslands. Journal of Applied Ecology 48 (2), 382-390
dc.identifier.issn0021-8901
dc.identifier.urihttp://hdl.handle.net/10379/10248
dc.description.abstractP>1. As measuring biodiversity in its entirety is impractical, there is a need for bioindicators. This study tested the hypothesis that parasitoid Hymenoptera are potential bioindicators that provide a useful means to assess the wider biodiversity of arthropod populations in agro-ecosystems. There are a range of theoretical arguments to support such a claim, including the high trophic position of these taxa within the arthropod communities in which they occur, and the unique nature of their biological relationships with the majority of terrestrial arthropod groups. 2. A survey of 48 commercial farms was conducted and Generalized Linear Models used to investigate relationships between six taxa-parasitoid Hymenoptera, Coleoptera, Hemiptera, Diptera, Araneae and plants (species richness and sward height)-in agricultural grasslands. As well as relationships between these groups, the relationship of each individual group to the overall biodiversity of all other arthropod groups was explored. 3. Both abundance (r2 = 0 center dot 58) and taxon richness (r2 = 0 center dot 54) of parasitoid Hymenoptera had stronger relationships with overall arthropod taxon richness than any other arthropod group investigated. Parasitoid abundance also had a positive relationship with species richness of Coleoptera (r2 = 0 center dot 23) and Hemiptera (r2 = 0 center dot 47). 4. An historical data set demonstrated how the relationship between parasitoid abundance and overall arthropod taxon richness changes over the growing season. July, when the relationship was strongest, is potentially the most useful time to sample. 5. For use in routine monitoring, it is important that an effort be made to understand the seasonal influence on the relationship in the context being studied. Equal sampling effort must be made for all sites being compared and sites should be sampled as close together in the season as is possible. 6. Synthesis and applications. We show that, within agricultural grasslands, both the abundance and taxon richness of parasitoid Hymenoptera are more closely related with overall arthropod diversity than any other arthropod group investigated. The use of parasitoid abundance provides a simple and practicable monitoring tool for tracking change in wider arthropod diversity in agro-ecosystems.
dc.publisherWiley-Blackwell
dc.relation.ispartofJournal of Applied Ecology
dc.subjectagro-ecosystem
dc.subjectbiodiversity
dc.subjectindicator
dc.subjectinvertebrate
dc.subjectparasitoid abundance
dc.subjectparasitoid hymenoptera
dc.subjecttaxon richness
dc.subjectweight-rank method
dc.subjectfield margins
dc.subjectbiodiversity indicators
dc.subjectinvertebrate diversity
dc.subjectsurrogate taxa
dc.subjectconservation
dc.subjectmanagement
dc.subjectinsect
dc.subjectforest
dc.subjectplant
dc.titleThe potential of parasitoid hymenoptera as bioindicators of arthropod diversity in agricultural grasslands
dc.typeArticle
dc.identifier.doi10.1111/j.1365-2664.2010.01937.x
dc.local.publishedsourcehttp://onlinelibrary.wiley.com/doi/10.1111/j.1365-2664.2010.01937.x/pdf
nui.item.downloads0


Files in this item

This item appears in the following Collection(s)

Show simple item record