Please use this identifier to cite or link to this item:
Appears in Collections:Computing Science and Mathematics Journal Articles
Peer Review Status: Refereed
Title: Invasive slug pests and their parasites - temperature responses and potential implications of climate change
Author(s): Wilson, Michael J
Digweed, Alison J
Brown, Jennifer
Ivanonva, Elena S
Hapca, Simona H
Contact Email:
Keywords: crop pests
climate change
invasive species
Issue Date: Aug-2015
Citation: Wilson MJ, Digweed AJ, Brown J, Ivanonva ES & Hapca SH (2015) Invasive slug pests and their parasites - temperature responses and potential implications of climate change. Biology and Fertility of Soils, 51 (6), pp. 739-748.
Abstract: It is generally accepted that climate change is likely to disrupt host-parasite relationships, but little consideration has been given to how this may affect agricultural pests. Here, we study the potential influence of climate change on the pest slug Deroceras reticulatum and its nematode parasite Phasmarhabditis hermaphrodita. The European slug D. reticulatum is a major pest of agriculture and has become invasive in many countries throughout the world, including the Americas, Asia and Australasia. P. hermaphrodita strongly inhibits feeding and causes mortality in host slugs. The parasite is widely distributed in the slugs’ native range but is very rare in some countries where the slug is invasive, for example the USA. The influence of temperature on D. reticulatum has been studied previously but the temperature response of P. hermaphrodita is unknown. The current study showed that while host and parasite have similar optimum growth temperatures, the parasite is much less tolerant of temperatures above optimum than the host. As a result, when parasites were present, slug feeding increased significantly above the slug’s optimum of 14 up to 24 °C as the inhibitory effect of the parasites lessened. Conversely, in the absence of parasites, slug feeding significantly decreased over the same temperature range. This finding suggests that given adequate moisture, rising temperatures may increase slug problems in D. reticulatum’s European home range, but possibly reduce problems in invasive territories such as the USA. The relationship between high temperatures and poor parasite performance is supported by studying prevalence of Phasmarhabditis spp. in the UK where a significant negative relationship exists between the mean summer high temperature and parasite prevalence.
DOI Link: 10.1007/s00374-015-1022-3
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.

Files in This Item:
File Description SizeFormat 
Wilson et al-BFS-2015.pdfFulltext - Published Version875.68 kBAdobe PDFUnder Permanent Embargo    Request a copy

Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependent on the depositor still being contactable at their original email address.

This item is protected by original copyright

Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

If you believe that any material held in STORRE infringes copyright, please contact providing details and we will remove the Work from public display in STORRE and investigate your claim.