Browsing by Subject "novel host"

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    Data from: Development of an aggressive bark beetle on novel hosts: Implications for outbreaks in an invaded range
    (2017-11-11) Rosenberger, Derek W; Venette, Robert C; Aukema, Brian H; dwrosenberger@olivet.edu; Rosenberger, Derek W
    Mountain pine beetle (Dendroctonus ponderosae Hopkins) is an aggressive bark beetle native to western North America currently expanding its range east. Should it reach northeastern North American pine forests, it is unclear how novel pine hosts might affect traits related to reproduction and development. These data are the result of studies meant to determine how four novel pine hosts might impact mountain pine beetle reproduction and development, relative to two historical hosts.
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    Eastern larch beetle reproductive success in western and subalpine larch
    (2024-10-31) Picklo, Rose; Eidson, Erika; Steed, Brytten; Aukema, Brian; bhaukema@umn.edu; Aukema, Brian; University of Minnesota Forest Entomology Lab
    Eastern larch beetle Dendroctonus simplex LeConte has been outbreaking for the past two decades in the Great Lakes region of North America, impacting approximately 400,000 hectares of eastern larch Larix laricina (tamarack) forest in Minnesota, United States, alone. Range expansions of some Dendroctonus species driven by climate change have occurred across North America as rising temperatures increase climatically suitable habitats across latitudes and elevations. The range of eastern larch beetle is currently sympatric to that of its host, eastern larch, but the insect could, in theory, eventually access ranges of other species of Larix native to North America. We compared host suitability of two potential novel hosts, western larch (Larix occidentalis Nutt.) and subalpine larch (Larix lyalli Parl.) against the beetleā€™s native host, eastern larch, using a reproductive success experiment conducted in cut bolts of all three species. We measured fertility, maternal gallery length, and offspring size and lipid content as metrics of reproductive success. We share data here upon publication of this work in the journal Frontiers in Forests and Global Change.