SimardMorinKrause2011

Référence

Simard, S., Morin, H. and Krause, C. (2011) Long-term spruce budworm outbreak dynamics reconstructed from subfossil trees. Journal of Quaternary Science, 26(7):734-738. (Scopus )

Résumé

We reconstructed the long-term spruce budworm (SBW) (Choristoneura fumiferana Clem.) outbreak dynamics in the boreal forest of Quebec (Canada) using a dendrochronological approach with subfossil trees. Although the majority of the excavated wood belonging to the genus Picea could potentially reveal the past activity of spruce budworms in the tree rings, very few were cross-dated due to a lack of marker rings. All cross-dated trees were found within a particular zone of the peat bogs and the floating chronology was radiocarbon dated to ca. 5.1 cal ka BP. The results presented in this study suggest that the dynamics of SBW outbreaks in the studied area fluctuated during the last millennia and that severe outbreaks as observed during the 20th century seldom occurred in that part of the boreal forest since the end of the last glaciation. These results are in agreement with observations from other parts of eastern North America. © 2011 John Wiley & Sons, Ltd.

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@ARTICLE { SimardMorinKrause2011,
    AUTHOR = { Simard, S. and Morin, H. and Krause, C. },
    TITLE = { Long-term spruce budworm outbreak dynamics reconstructed from subfossil trees },
    JOURNAL = { Journal of Quaternary Science },
    YEAR = { 2011 },
    VOLUME = { 26 },
    PAGES = { 734-738 },
    NUMBER = { 7 },
    ABSTRACT = { We reconstructed the long-term spruce budworm (SBW) (Choristoneura fumiferana Clem.) outbreak dynamics in the boreal forest of Quebec (Canada) using a dendrochronological approach with subfossil trees. Although the majority of the excavated wood belonging to the genus Picea could potentially reveal the past activity of spruce budworms in the tree rings, very few were cross-dated due to a lack of marker rings. All cross-dated trees were found within a particular zone of the peat bogs and the floating chronology was radiocarbon dated to ca. 5.1 cal ka BP. The results presented in this study suggest that the dynamics of SBW outbreaks in the studied area fluctuated during the last millennia and that severe outbreaks as observed during the 20th century seldom occurred in that part of the boreal forest since the end of the last glaciation. These results are in agreement with observations from other parts of eastern North America. © 2011 John Wiley & Sons, Ltd. },
    COMMENT = { Export Date: 12 October 2011 Source: Scopus doi: 10.1002/jqs.1492 },
    ISSN = { 02678179 (ISSN) },
    KEYWORDS = { Choristoneura fumiferana, Holocene, Insect outbreak, Subfossil wood, Tree rings },
    OWNER = { Luc },
    TIMESTAMP = { 2011.10.12 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-80053208905&partnerID=40&md5=dd139bb12b470cdee68e95baa66e83cf },
}

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