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Ecological Networks in Stored Grain: Key Postharvest Nodes for Emerging Pests, Pathogens, and Mycotoxins

Hernandez Nopsa, John F. and Daglish, Gregory J. and Hagstrum, David W. and Leslie, John F. and Phillips, Thomas W. and Scoglio, Caterina and Thomas-Sharma, Sara and Walter, Gimme H. and Garrett, Karen A. (2015) Ecological Networks in Stored Grain: Key Postharvest Nodes for Emerging Pests, Pathogens, and Mycotoxins. BioScience, 65 (10). pp. 985-1002.

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Article Link(s): http://dx.doi.org/10.1093/biosci/biv122

Publisher URL: http://bioscience.oxfordjournals.org/content/65/10/985.abstract

Abstract

Wheat is at peak quality soon after harvest. Subsequently, diverse biota use wheat as a resource in storage, including insects and mycotoxin-producing fungi. Transportation networks for stored grain are crucial to food security and provide a model system for an analysis of the population structure, evolution, and dispersal of biota in networks. We evaluated the structure of rail networks for grain transport in the United States and Eastern Australia to identify the shortest paths for the anthropogenic dispersal of pests and mycotoxins, as well as the major sources, sinks, and bridges for movement. We found important differences in the risk profile in these two countries and identified priority control points for sampling, detection, and management. An understanding of these key locations and roles within the network is a new type of basic research result in postharvest science and will provide insights for the integrated pest management of high-risk subpopulations, such as pesticide-resistant insect pests.

Item Type:Article
Business groups:Crop and Food Science
Subjects:Plant culture > Field crops > Wheat
Plant pests and diseases > Plant pathology
Deposited On:28 Jan 2016 04:27
Last Modified:28 Jan 2016 04:27

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