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    Author(s): Steve McKelvey; Frank Koch; Bill Smith
    Date: 2008
    Source: In: Frankel, Susan J.; Kliejunas, John T.; Palmieri, Katharine M., tech. coords. 2008. Proceedings of the sudden oak death third science symposium. Gen. Tech. Rep. PSW-GTR-214. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. pp. 249-256
    Publication Series: General Technical Report (GTR)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (1.3 MB)

    Description

    There is widespread concern among scientists and land managers that Phytophthora ramorum may be accidentally introduced into oak-dominated eastern U.S. forests through the transfer of the pathogen from infected nursery plants to susceptible understory forest species (for example, Rhododendron spp.) at the forest-urban interface. Inspection programs can be made more efficient by identifying locations throughout the U.S. that are most likely to receive infected nursery stock. e develop a spatial network model framework utilizing potential interstate nursery stock movements on a bipartite network, adopting a Bayesian approach to model probabilities of transmission of P. ramorum from entry to destination nodes within the network. As the goal of this paper is to present a general model framework, no specific risk analysis is presented. In the face of future discoveries of P. ramorum infections in the eastern U.S., instances of models from this framework can be used to help identify sites with a high risk of infection based on observed infection patterns.

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    Citation

    McKelvey, Steve; Koch, Frank; Smith, Bill. 2008. Predicting movement of nursery hosts using a linear network model. In: Frankel, Susan J.; Kliejunas, John T.; Palmieri, Katharine M., tech. coords. 2008. Proceedings of the sudden oak death third science symposium. Gen. Tech. Rep. PSW-GTR-214. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. pp. 249-256

    Keywords

    Bayesian analysis, Phytophthora ramorum, nursery shipments, transportation network

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