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    Dendrochronological potential of Quercus garryana, Saltspring Island, British Columbia

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    Author
    Jordan, D.
    Vander Gugten, K.
    Issue Date
    2012-01
    Keywords
    dendrochronology
    Quercus garryana
    Garry oak
    potential
    coastal British Columbia
    
    Metadata
    Show full item record
    Citation
    Jordan, D., Vander Gugten, K., 2012. Dendrochronological potential of Quercus garryana, Saltspring Island, British Columbia. Tree-Ring Research68(1):51-58.
    Publisher
    Tree-Ring Society
    Journal
    Tree-Ring Research
    URI
    http://hdl.handle.net/10150/630472
    DOI
    10.3959/2011-5.1
    Additional Links
    http://www.treeringsociety.org
    Abstract
    Garry oak (Quercus garryana Dougl.) is the cornerstone tree species of one of the most biologically diverse yet threatened ecosystems in Canada. The Canadian Garry oak ecosystem is located only in southern coastal British Columbia and is home to numerous endangered species. This study tests the dendrochronological potential of Garry oak trees near their northern range limit by successfully crossdating a sample from the Crow's Nest Ecological Research Area (CNERA) on Saltspring Island, British Columbia. Forty-five samples were collected from 39 trees to determine accurate age estimates and develop a crossdated tree-ring chronology that spans 180 years (A.D. 1825–2005). Wood anatomy and periodic growth suppression made crossdating challenging. However, distinct marker rings were readily identified on nearly all cores showing a synchronous response among trees to a common radial growth signal. The majority of trees sampled were established during 1860–1880 and 1947–1967. Correlation analyses show that radial growth of Garry oak at CNERA is influenced by both temperature and moisture availability. Our study demonstrates that extraction of high-quality dendrochronological data from Garry oak trees near their northern range limit is possible, so this species should be recognized as having good dendrochronological potential.
    Language
    en
    ISSN
    2162-4585
    1536-1098
    ae974a485f413a2113503eed53cd6c53
    10.3959/2011-5.1
    Scopus Count
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    Tree-Ring Research, Volume 68, Issue 1 (Jan 2012)

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