Risk Assessment for the Establishment of Vespa mandarinia (Hymenoptera: Vespidae) in the Pacific Northwest, United States

dc.contributor.authorNorderud, Erik D.
dc.contributor.authorPowell, Scott L.
dc.contributor.authorPeterson, Robert K. D.
dc.date.accessioned2022-09-15T21:35:58Z
dc.date.available2022-09-15T21:35:58Z
dc.date.issued2021-07
dc.description.abstractThe recent introduction of the Asian giant hornet, Vespa mandarinia Smith, in the United States in late 2019 has raised concerns about its establishment in the Pacific Northwest and its potential deleterious effects on honey bees, Apis spp., and their pollination services in the region. Therefore, we conducted a risk assessment of the establishment of V. mandarinia in Washington, Oregon, Montana, and Idaho on a county-by-county basis. Our highly conservative tier-1 qualitative and semiquantitative risk assessment relied on the biological requirements and ecological relationships of V. mandarinia in the environments of the Pacific Northwest. Our risk characterization was based on climate and habitat suitability estimates for V. mandarinia queens to overwinter and colonize nests, density and distribution of apiaries, and locations of major human-mediated introduction pathways that may increase establishment of the hornet in the counties. Our results suggest that 32 counties in the region could be at low risk, 120 at medium risk, and 23 at high risk of establishment. Many of the western counties in the region were estimated to be at the highest risk of establishment mainly because of their suitable climate for queens to overwinter, dense forest biomass for nest colonization, and proximity to major port and freight hubs in the region. By design, our tier-1 risk assessment most likely overestimates the risk of establishment, but considering its negative effects, these counties should be prioritized in ongoing monitoring and eradication efforts of V. mandarinia.en_US
dc.identifier.citationNorderud, E. D., Powell, S. L., & Peterson, R. K. (2021). Risk Assessment for the Establishment of Vespa mandarinia (Hymenoptera: Vespidae) in the Pacific Northwest, United States. Journal of Insect Science, 21(4), 10.en_US
dc.identifier.issn1536-2442
dc.identifier.urihttps://scholarworks.montana.edu/handle/1/17159
dc.language.isoen_USen_US
dc.publisherOxford University Pressen_US
dc.rightscc-byen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.subjecthoneybeeen_US
dc.subjectapis melliferaen_US
dc.subjectasian giant horneten_US
dc.subjectrisk analysisen_US
dc.subjectinvasive speciesen_US
dc.titleRisk Assessment for the Establishment of Vespa mandarinia (Hymenoptera: Vespidae) in the Pacific Northwest, United Statesen_US
dc.typeArticleen_US
mus.citation.extentfirstpage1en_US
mus.citation.extentlastpage14en_US
mus.citation.issue4en_US
mus.citation.journaltitleJournal of Insect Scienceen_US
mus.citation.volume21en_US
mus.data.thumbpage5en_US
mus.identifier.doi10.1093/jisesa/ieab052en_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentLand Resources & Environmental Sciences.en_US
mus.relation.universityMontana State University - Bozemanen_US

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