Main content

Modelling swede midge (Contarinia nasturtii Kieffer) population dynamics in its invasive range

Show simple item record

dc.contributor.advisor Hallett, Rebecca Liu, Jenny 2019-05-08T19:55:55Z 2019-04 2019-04-04 2019-05-08
dc.description.abstract Effective pest management of the invasive swede midge (Contarinia nasturtii Kieffer) is hindered by the lack of development and mortality information in its invasive range. This thesis had 2 main objectives: 1) generate temperature-dependent development and mortality data for Ontario populations of C. nasturtii; and, 2) revise an existing C. nasturtii life cycle model (MidgEmerge) with this information. Temperature-dependent development and mortality rates were determined for all C. nasturtii life stages. This information, and robust adult count field data, were used to re-parameterize MidgEmerge and develop MidgEmergeII. Egg and larval development times were found to differ between Ontario and UK populations. The re-developed MidgEmergeII model accurately predicted C. nasturtii population dynamics in various southern Ontario locations. Results indicate that there are 3 C. nasturtii emergence phenotypes and 2-3 generations in Ontario, in contrast to the previous model. These findings have implications for C. nasturtii management in its invasive range. en_US
dc.description.sponsorship Canola Council of Canada, Canola Agronomic Research Program en_US
dc.language.iso en en_US
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.uri *
dc.subject population dynamics en_US
dc.subject Diptera en_US
dc.subject insect en_US
dc.subject agriculture en_US
dc.subject canola en_US
dc.subject gall midge en_US
dc.subject life cycle modelling en_US
dc.subject swede midge en_US
dc.title Modelling swede midge (Contarinia nasturtii Kieffer) population dynamics in its invasive range en_US
dc.type Thesis en_US Environmental Sciences en_US Master of Science en_US School of Environmental Sciences en_US
dc.description.embargo 2020-04-04
dc.rights.license All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.

Files in this item

Files Size Format View Description
Liu_Jenny_201905_Msc.pdfuntranslated 1.059Mb PDF View/Open Master's thesis dissertation

This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivatives 4.0 International Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International