3 record(s) found for principal investigator "Greene, David" (multi-year projects are grouped):
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Black Spruce Fertility at the Arctic Treeline
Principal Investigator: Greene, David F
Licensed Year(s): 2009
Summary: The research objective is to show that the fertility of black spruce (Picea mariana) in the Arctic is limited by the amount of pollen in the surrounding air. After snowmelt, the researchers will choose unburned black spruce “islands” at different distances from the perimeter of the 1999 Lynx Creek fire. Subsequently, as the developing black spruce pollen cones become easy to see, they will remo...


Tree Regeneration on Seismic Lines
Principal Investigator: Greene, David F
Licensed Year(s): 2005 2004
Summary: The purpose of this three-year project is to identify the factors that promote or retard forest regrowth after seismic line cutting. Oil and gas development in the Mackenzie Valley has the potential to heavily impact the region's slow-growing forests....


Dispersal of white spruce seeds and pollen/understory scarification in a mast year
Principal Investigator: Greene, David F
Licensed Year(s): 2002
Summary: The long distance dispersal of tree pollen and seeds is of considerable interest as we ask how fast plants can migrate in response to rapid climate change. Examination of seed dispersal will actually be based on looking at germinants (rather than seeds)...


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