Jamie E. Hopkinson
University of Queensland
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Publication
Featured researches published by Jamie E. Hopkinson.
Journal of Pest Science | 2008
M. R. Wade; Jamie E. Hopkinson; Myron P. Zalucki
Many arthropod predators and parasitoids exhibit either stage-specific or lifetime omnivory, in that they include extra-floral nectar, floral nectar, honeydew or pollen in their immature and/or adult diet. Access to these plant-derived foods can enhance pest suppression by increasing both the individual fitness and local density of natural enemies. Commercial products such as Amino-Feed®, Envirofeast®, and Pred-Feed® can be applied to crops to act as artificial-plant-derived foods. In laboratory and glasshouse experiments we examined the influence of carbohydrate and protein rich Amino-Feed UV® or Amino-Feed, respectively, on the fitness of a predatory nabid bug Nabis kinbergii Reuter (Hemiptera: Nabidae) and bollworm pupal parasitoid Ichneumon promissorius (Erichson) (Hymenoptera: Ichneumonidae). Under the chosen conditions, the provision of either wet or dry residues of Amino-Feed UV had no discernable effect on immediate or longer-term survival and immature development times of N. kinbergii. In contrast, the provision of honey, Amino-Feed plus extrafloral nectar, and extrafloral nectar alone had a marked effect on the longevity of I. promissorius, indicating that they were limited by at least carbohydrates as an energy source, but probably not protein. Compared with a water only diet, the provision of Amino-Feed plus extrafloral nectar increased the longevity of males and females of I. promissorius by 3.0- and 2.4-fold, respectively. Not only did female parasitoids live longer when provided food, but the total number of eggs laid and timing of deposition was affected by diet under the chosen conditions. Notably, females in the water and honey treatments deposited greater numbers of eggs earlier in the trial, but this trend was unable to be sustained over their lifetime. Egg numbers in these treatments subsequently fell below the levels achieved by females in the Amino-Feed plus extrafloral nectar and cotton extrafloral nectar only treatments. Furthermore, there were times when the inclusion of the Amino-Feed was beneficial compared with cotton extrafloral nectar only. Artificial food supplements and plant-derived foods are worthy of further investigation because they have potential to improve the ecosystem service of biological pest control in targeted agroecosystems by providing natural enemies with an alternative source of nutrition, particularly during periods of prey/host scarcity.
Australian Journal of Entomology | 2005
David Murray; Richard Lloyd; Jamie E. Hopkinson
Agriculture, Ecosystems & Environment | 2015
Sarina Macfadyen; Jamie E. Hopkinson; Hazel Parry; M.J. Neave; F.J.J.A. Bianchi; Myron P. Zalucki; Nancy A. Schellhorn
Basic and Applied Ecology | 2015
Hazel Parry; Sarina Macfadyen; Jamie E. Hopkinson; F.J.J.A. Bianchi; Myron P. Zalucki; Anne Bourne; Nancy A. Schellhorn
Biological Control | 2013
Jamie E. Hopkinson; Myron P. Zalucki; David Murray
Australian Journal of Entomology | 2013
Jamie E. Hopkinson; Myron P. Zalucki; David Murray
Australian Journal of Entomology | 2008
Richard Lloyd; David Murray; Jamie E. Hopkinson
Biological Control | 2016
Jamie E. Hopkinson; Stephanie M. Kramer; Myron P. Zalucki
Archive | 2014
Richard Lloyd; Jamie E. Hopkinson; Paul Grundy; Stephanie M. Kramer
Archive | 2015
Jamie E. Hopkinson; Steph Kramer; Richard Lloyd; Paul Grundy
Collaboration
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Commonwealth Scientific and Industrial Research Organisation
View shared research outputsCommonwealth Scientific and Industrial Research Organisation
View shared research outputsCommonwealth Scientific and Industrial Research Organisation
View shared research outputsCommonwealth Scientific and Industrial Research Organisation
View shared research outputsCommonwealth Scientific and Industrial Research Organisation
View shared research outputsCommonwealth Scientific and Industrial Research Organisation
View shared research outputsCommonwealth Scientific and Industrial Research Organisation
View shared research outputs