BoulangerArseneault2004

Référence

Boulanger, Y., Arseneault, D. (2004) Spruce budworm outbreaks in eastern Quebec over the last 450 years. Canadian Journal of Forest Research, 34(5):1035-1043. (Scopus )

Résumé

In this study we used dendrochronology to reconstruct the history of eastern spruce budworm (Choristoneura fumiferana (Clem.)) outbreaks over the last 450 years in the Bas-Saint-Laurent region of southeastern Quebec. In total, 260 tree cores were sampled from 204 beams in seven historic buildings and 12 trees in a virgin forest stand. Eight previously documented outbreaks (1975-1992, 1947-1958, 1914-1923, 1868-1882, 1832-1845, 1805-1812, 1752-1776, 1710-1724) and three presumed previous outbreaks (1678-1690, 1642-1648, 1577-1600) were identified based on periods of growth reduction. Of these 11 confirmed or presumed outbreaks, six were documented for the first time in eastern Quebec. Such data suggest that outbreak frequency has remained quite stable, with a mean interval of about 40 years between the midpoint of successive outbreaks since the mid-16th century. In addition, together with previous studies, our results indicate a strong spatial synchrony of spruce budworm outbreaks across central and eastern Quebec during the last 300 years. Consequently, our study does not support the hypothesis that spruce budworm outbreak frequency and synchrony increased during the 20th century.

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@ARTICLE { BoulangerArseneault2004,
    AUTHOR = { Boulanger, Y. and Arseneault, D. },
    TITLE = { Spruce budworm outbreaks in eastern Quebec over the last 450 years },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2004 },
    VOLUME = { 34 },
    PAGES = { 1035-1043 },
    NUMBER = { 5 },
    NOTE = { cited By 58 },
    ABSTRACT = { In this study we used dendrochronology to reconstruct the history of eastern spruce budworm (Choristoneura fumiferana (Clem.)) outbreaks over the last 450 years in the Bas-Saint-Laurent region of southeastern Quebec. In total, 260 tree cores were sampled from 204 beams in seven historic buildings and 12 trees in a virgin forest stand. Eight previously documented outbreaks (1975-1992, 1947-1958, 1914-1923, 1868-1882, 1832-1845, 1805-1812, 1752-1776, 1710-1724) and three presumed previous outbreaks (1678-1690, 1642-1648, 1577-1600) were identified based on periods of growth reduction. Of these 11 confirmed or presumed outbreaks, six were documented for the first time in eastern Quebec. Such data suggest that outbreak frequency has remained quite stable, with a mean interval of about 40 years between the midpoint of successive outbreaks since the mid-16th century. In addition, together with previous studies, our results indicate a strong spatial synchrony of spruce budworm outbreaks across central and eastern Quebec during the last 300 years. Consequently, our study does not support the hypothesis that spruce budworm outbreak frequency and synchrony increased during the 20th century. },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1139/x03-269 },
    KEYWORDS = { Biodiversity; Ecology; Ecosystems; Environmental engineering; Research, Dendrochronology; Growth reduction; Outbreak frequency, Forestry, dendrochronology; historical ecology; pest outbreak; population dynamics, Bas-Saint-Laurent; Canada; North America; Quebec [Canada], Choristoneura fumiferana; Christia; Hexapoda; Insecta; Lepidoptera; Picea; Tortricidae },
    SOURCE = { Scopus },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-3042842764&partnerID=40&md5=c8eb48adbeadf0860b2dc9f4a9c83fcd },
}

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