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    Author(s): Min Lu; Daniel Miller; Jiang-Hua Sun
    Date: 2007
    Source: PLoS ONE
    Publication Series: Scientific Journal (JRNL)
    PDF: View PDF  (137.47 KB)


    Aside from the ecological impacts, invasive species fascinate ecologists because of the unique opportunities that invasives offer in the study of community ecology. Some hypotheses have been proposed to illustrate the mechanisms that allow exotics to become invasive. However, positive interactions between exotic and native insects are rarely utilized to explain invasiveness of pests. Methodology/Principal Findings. Here, we present information on a recently formed association between a native and an exotic bark beetle on their shared host, Pinus tabuliformis, in China. In field examinations, we found that 35–40% of P. tabuliformis attacked by an exotic bark beetle, Dendroctonus valens, were also attacked by a native pine bark beetle, Hylastes parallelus. In the laboratory, we found that the antennal and walking responses of H. parallelus to host- and beetle-produced compounds were similar to those of the exotic D. valens in China.

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    Lu M, Miller DR, Sun J-H (2007) Cross-Attraction between an Exotic and a Native Pine Bark Beetle: A Novel Invasion Mechanism?. PLoS ONE 2(12): e1302. doi:10.1371/journal.pone.0001302

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