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Temporal and spatial variations in the parasitoid complex of the horse chestnut leafminer during its invasion of Europe
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SYSNO ASEP 0355627 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Temporal and spatial variations in the parasitoid complex of the horse chestnut leafminer during its invasion of Europe Author(s) Grabenweger, G. (AT)
Kehrli, P. (CH)
Zweimüller, I. (AT)
Augustin, S. (FR)
Avtzis, N. (GR)
Bacher, S. (CH)
Freise, J. (DE)
Girardoz, S. (CH)
Guichard, S. (FR)
Heitland, W. (DE)
Lethmayer, Ch. (AT)
Stolz, M. (AT)
Tomov, R. (BG)
Volter, Lubomír (BC-A)
Kenis, M. (CH)Number of authors 15 Source Title Biological Invasions. - : Springer - ISSN 1387-3547
Roč. 12, č. 8 (2010), s. 2797-2813Number of pages 17 s. Language eng - English Country NL - Netherlands Keywords parasitoid recruitment ; adaptation ; host residence time Subject RIV EH - Ecology, Behaviour CEZ AV0Z50070508 - ENTU-I, BC-A (2005-2011) UT WOS 000279682800035 DOI 10.1007/s10530-009-9685-z Annotation The enemy release hypothesis posits that the initial success of invasive species depends on the scarcity and poor adaptation of native natural enemies such as predators and parasitoids. As for parasitoids, invading hosts are first attacked at low rates by a species-poor complex of mainly generalist species. Over the years parasitoid richness may increase either because the invading host continuously encounters new parasitoid species during its spread (geographic spread-hypothesis) or because local parasitoids need different periods of time to adapt to the novel host (adjustment-hypothesis). Both scenarios should result in a continuous increase of parasitoid richness over time. Our results show that the overall parasitism rate increases as a function of host residence time as well as geographic and climatic factors, altogether reflecting the historic spread of C. ohridella. However, parasitism rates of C. ohridella are still very low. Moreover the parasitoid complex lacks specialists. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2011
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