Spatiotemporal clustering and association of ephestia kuehniella (lepidoptera: Pyralidae) and two of its parasitoids in bulk-stored wheat

dc.contributor.author	Athanassiou, CG	en
dc.contributor.author	Saitanis, CJ	en
dc.date.accessioned	2014-06-06T06:47:14Z
dc.date.available	2014-06-06T06:47:14Z
dc.date.issued	2006	en
dc.identifier.issn	00220493	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/3472
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-34248670694&partnerID=40&md5=d86bbf4f756066fa006484c700df4850	en
dc.subject	Competition	en
dc.subject	Ephestia kuehniella	en
dc.subject	Harbobracon hebetor	en
dc.subject	SADIE	en
dc.subject	Venturia canescens	en
dc.subject.other	air and air related phenomena	en
dc.subject.other	animal	en
dc.subject.other	article	en
dc.subject.other	demography	en
dc.subject.other	food preservation	en
dc.subject.other	Hymenoptera	en
dc.subject.other	larva	en
dc.subject.other	Lepidoptera	en
dc.subject.other	plant seed	en
dc.subject.other	time	en
dc.subject.other	wheat	en
dc.subject.other	Animals	en
dc.subject.other	Confined Spaces	en
dc.subject.other	Demography	en
dc.subject.other	Food Preservation	en
dc.subject.other	Hymenoptera	en
dc.subject.other	Larva	en
dc.subject.other	Lepidoptera	en
dc.subject.other	Seeds	en
dc.subject.other	Time Factors	en
dc.subject.other	Triticum	en
dc.subject.other	Anagasta kuehniella	en
dc.subject.other	Braconidae	en
dc.subject.other	Hexapoda	en
dc.subject.other	Hymenoptera	en
dc.subject.other	Ichneumonidae	en
dc.subject.other	Kuehniella	en
dc.subject.other	Lepidoptera	en
dc.subject.other	Pyralidae	en
dc.subject.other	Triticum	en
dc.subject.other	Triticum aestivum	en
dc.subject.other	Venturia (ichneumonid wasp)	en
dc.subject.other	Venturia canescens	en
dc.title	Spatiotemporal clustering and association of ephestia kuehniella (lepidoptera: Pyralidae) and two of its parasitoids in bulk-stored wheat	en
heal.type	journalArticle	en
heal.publicationDate	2006	en
heal.abstract	To assess the spatiotemporal distribution of insects in a flat storage containing wheat (Triticum spp.), probe traps were suspended in the wheat bulk and inspected for captured insects at 15-d intervals, from June 2001 to August 2002. The grain bulk was 1 m in height, and traps were placed at the upper and the lower 0.5 m of the bulk. During the entire trapping period, 17 insect taxa were recorded. The most abundant species were Ephcstia kuehniella Zeller (Lepidoptera: Pyralidae) and its larval parasitoids Harbobracon hebetor (Say) (Hymenoptera: Braconidae) and Venturia cancscens (Gravenhorst) (Hymenoptera: Ichneumonidae). Most individuals were found in the upper bulk part. The highest E. kuchniella trap catches were found between August and November 2001 and during June and July 2002. Of the two parasitoids, H. hebetor was more abundant than V. canescens, with the exception of winter and early spring, when both species occurred at low numbers, especially H. hebetor. Spatial analysis by distance indices (SADIE) spatiotemporal analysis showed significant clustering of species, especially during summer and autumn. Early in the season and during spring 2002, at low host numbers, V. canescens occupied the locations where E. kuchniella mainly aggregated, but with the increase of E. kuehniella population, H. hebetor occupied these host groups and replaced V. canescens. Although the two parasitoids competed for the same host species, both species coexisted in the storage facility during the entire trapping period. © 2006 Entomological Society of America.	en
heal.journalName	Journal of Economic Entomology	en
dc.identifier.issue	6	en
dc.identifier.volume	99	en
dc.identifier.spage	2191	en
dc.identifier.epage	2201	en