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13-17 May 2013
Tucson, Arizona
US/Arizona timezone
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Fire history in marginal jack pine populations at their southern limit of distribution, Riding Mountain National Park, central Canada.

Presented by Prof. Jacques TARDIF on 15 May 2013 from 18:00 to 21:00
Type: Poster Presentation
Board #: 20

Content

In central Canada, information on fire history remains largely anecdotic and long-term reconstructions are rare. In a context where both anthropogenic and climate influences on fire regime have changed (fire suppression remaining the dominant management paradigm) the Canadian National Parks have for mandate to maintain ecological integrity. We present a fire reconstruction derived from jack pine trees growing in Riding Mountain National Park (RMNP). Fire scars and other indicators were used to document fire dynamics. During the mid-19th to early 20th century (period coinciding with European colonization) the fire interval was significantly shorter than during the recent fire-free period of 1930 to 2010 (period coinciding with creation of RMNP, reduced aboriginal presence and increased fire suppression). In absence of fire, jack pine will slowly become excluded from the study area and prescribed burning may be advocated to allow it to remain a significant component of this landscape.

Place

Location: DoubleTree
Room: Salon E

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