期刊
BIOSCIENCE
卷 65, 期 10, 页码 985-1002出版社
OXFORD UNIV PRESS
DOI: 10.1093/biosci/biv122
关键词
insect pests; mycotoxins; postharvest networks; stored grain; wheat transportation
类别
资金
- US Department of Agriculture (USDA) APHIS grant [11-8453-1483-CA]
- USDA NC RIPM grant [2010-34103-20964]
- CGIAR Research Program on Climate Change, Agriculture, and Food Security (CCAFS)
- US National Science Foundation (NSF) as part of the joint NSF-National Institutes of Health (NIH) Ecology of Infectious Disease program [EF-0525712]
- US National Science Foundation (NSF) as part of the joint US NSF [DEB-0516046]
- Kansas Agricultural Experiment Station [15-452-J]
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.
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