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Do temperature, relative humidity and interspecific competition alter the population size and the damage potential of stored-product insect pests? A hierarchical multilevel modeling approach
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Papanikolaou, Nikos E., Kavallieratos, Nickolas G., Boukouvala, Maria C. and Malesios, Chrisovalantis (2018) Do temperature, relative humidity and interspecific competition alter the population size and the damage potential of stored-product insect pests? A hierarchical multilevel modeling approach. Journal of Thermal Biology, 78 . pp. 415-422. doi:10.1016/j.jtherbio.2018.10.022 ISSN 03064565.
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Official URL: http://dx.doi.org/10.1016/j.jtherbio.2018.10.022
Abstract
The premises of stored agricultural products and food consists of a complex ecosystem in which several pests can seriously affect the quality and quantity of the products. In this study we utilize a 4-level hierarchical linear multilevel model in order to assess the effect of temperature, relative humidity (RH) and interspecific competition on the population size and damage potential of the larger grain borer, Prostephanus truncatus (Horn) (Coleoptera: Bostrychidae) and the lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae). As RH was increased, we observed higher percentage of live insects, while increased levels of temperature significantly decreased the percentage of live insects. The combination of R. dominica and P. truncatus lead to reduction of the percentages of live insects in comparison to single species treatments. However, P. truncatus is more damaging than R. dominica in maize, based on the proportion of damaged kernels which were infested by each insect species. We expect our results to have bearing in the management of these species.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Arts > School for Cross-faculty Studies > Institute for Global Sustainable Development | ||||||||
Journal or Publication Title: | Journal of Thermal Biology | ||||||||
Publisher: | Elsevier | ||||||||
ISSN: | 03064565 | ||||||||
Official Date: | December 2018 | ||||||||
Dates: |
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Volume: | 78 | ||||||||
Page Range: | pp. 415-422 | ||||||||
DOI: | 10.1016/j.jtherbio.2018.10.022 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
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