David R. Gillespie
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View article: Dispersal and distribution of a generalist predator in habitats with multiple food resources
Dispersal and distribution of a generalist predator in habitats with multiple food resources Open
The ability to locate suitable food resources affects fitness in animals. Therefore, movements are necessary to optimize foraging in habitats where food is distributed in patches of different qualities. The aim of this work was to investig…
View article: The parasitoid complex of diamondback moth, <i>Plutella xylostella</i> (Linnaeus) (Lepidoptera: Plutellidae), in Canada: impact and status
The parasitoid complex of diamondback moth, <i>Plutella xylostella</i> (Linnaeus) (Lepidoptera: Plutellidae), in Canada: impact and status Open
Diamondback moth, Plutella xylostella (Linnaeus) (Lepidoptera: Plutellidae), a globally important pest of Brassicaceae crops, migrates into all provinces of Canada annually. Life tables were used to determine the mortality levels contribut…
View article: A list of plant-feeding Lepidoptera introduced into British Columbia
A list of plant-feeding Lepidoptera introduced into British Columbia Open
Each of 48 species of plant-feeding Lepidoptera known to be foreign to North America and to occur in British Columbia is briefly summarized with its history and importance. Those feeding on stored products are not indicated.
View article: Bioclimatic analyses of Trichomalus perfectus and Mesopolobus morys (Hymenoptera: Pteromalidae) distributions, two potential biological control agents of the cabbage seedpod weevil in North America
Bioclimatic analyses of Trichomalus perfectus and Mesopolobus morys (Hymenoptera: Pteromalidae) distributions, two potential biological control agents of the cabbage seedpod weevil in North America Open
Climatic requirements of natural enemies have important implications for predicting the outcome of classical biological control programs. A five year study (2011–2015) investigated the ectoparasitoid community of the oilseed rape pest Ceut…
View article: An exotic parasitoid provides an invasional lifeline for native parasitoids
An exotic parasitoid provides an invasional lifeline for native parasitoids Open
The introduction of an exotic species may alter food webs within the ecosystem and significantly affect the biodiversity of indigenous species at different trophic levels. It has been postulated that recent introduction of the brown marmor…