L.C. CWYNAR, BSc, MSc, PhD (Toronto). Paleoecology.
Teaching Responsibilities:
Biol 2113 (Principles of Ecology)
Biol 3541 (Plant Ecology)
Biol 4352 (Historical Community and Environmental Change)
Research Interests:
My general interests lie in the development of vegetation since
the last Ice Age in relation to climate change. How has climate
changed? How quickly have plant species and communities been able
to respond to changes in climate? In particular, how have arctic
boreal plant communities developed in relation to climate forcing?
In my lab we use the techniques of pollen, stomate, plant macrofossil,
and midge fly analyses to address these questions. Current projects
focus on 1) treeline movements in NE European Russia and Siberia,
and 2) the late glacial period (the transition between full glacial
and interglacial climates between 14,000 and 10,000 years ago)
of Maritime Canada during which climate and vegetation changed
remarkably quickly.
Special Responsibilities/Interests/Expertise:
Director of Graduate
Studies
Representative to APICS Biology sub group.
Recent Publications:
Bjorck, S., M. J. C. Walker, L. C. Cwynar, S. Johnsen, K.-L.
Knudsen, J. J. Lowe, B. Wohlfarth and INTIMATE Members. 1998.
An event stratigraphy for the Last Termination in the North Atlantic
Region based on the Greenland ice-core record: a proposal by the
INTIMATE group. J. Quaternary Science 13: 283-92.
Spear, R.W. and L.C. Cwynar. 1997. Late Quaternary vegetation
history of White Pass, northern British Columbia, Canada. Arctic
and Alpine Research 29: 45-52.
Levesque, A.J., L.C. Cwynar and I.R. Walker. 1997. Exceptionally
steep north-south gradients in lake temperatures during the last
deglaciation. Nature 385: 423-426.
Clayden, S. L., L.C. Cwynar, G.M. MacDonald, and A.A. Velchko.
1997. Holocene pollen and stomates from a forest-tundra site on
the Taimyr Peninsula, Siberia. Arctic and Alpine Research 29:
327-333.
Walker, I.R., A.J. Levesque, L.C. Cwynar and A. Lotter. 1997.
An expanded surface-water paleotemperature inference model for
use with fossil midges from eastern Canada. J. Paleolimnology
18: 165-178.
Mayle, F.E. and L.C. Cwynar. Impact of the Younger Dryas cooling
event upon lowland vegetation of Maritime Canada. Ecological Monographs
65:129-154.
Cwynar, L.C. and Spear, R.W. Paleovegetation and Paleoclimatic
changes in the Yukon at 6KA. Geographie Physique et Quaternaire
49:29-35.
Cwynar, L.C. and Levesque, A.J. Chronomid evidence for lateglacial
climatic events in Maine. Quaternary Research 43:405-413.
e-mail to: cwynar@unb.ca
Maintained by: casey@unb.ca
Last Update: 7 January 2005
This document: http://www.unb.ca/departs/science/biology/Cwynar.html