Timothy Work obtained a B.Sc. (Hope College
1993), a master in Entomology, Ecology and Evolution (Michigan State University 1996)
and a Ph.D. (2000) in Entomology from Oregon State University. He completed his postdoctoral
training at University of Alberta. He worked as a research scientist at the Centre de
recherches écologiques (Université de Montréal) before joining the
Université du Québec à Montréal as a professor in the department of
biological sciences in 1985. Since 1998 he is also professor at Université
du Quebec in Abitibi-Témiscamingue in the Applied sciences department. His
work has to do with both fundamental and applied research. Most of his
work in fundamental research is on ecosystem dynamics, more specifically
the boreal forest. The more applied research includes the use of
ecological knowledge for silviculture and forest management. Dr. Bergeron
held a Canadian Research Chair in Forest Ecology and Management. He is a
member of the
Interuniversity Research Group in Forest Ecology (GREFi), an associated professor
at University of Northern Brithish Columbia (UNBC) and is director of the NSERC/UQAT/UQAM Industrial Chair in Sustainable Forest
Studies on ecosystem dynamics
By way of field and lab work, the aim is to better understand the
ecological factors responsible for the distribution and dynamics of
forest stands. One approach is to study the relationship between abiotic
components of the environment (climate, geomorphology, soils) and the
distribution of different species or plant communities. Others include
historical reconstitution and characterization of natural and anthropic
disturbance regimes (fire, windthrow, insect outbreak) affecting forest
ecosystem. The determination of demographic structures of species allows
a fuller understanding of the relationship between disturbance regimes
and the regeneration and succession mechanisms of forest stands.
Dendrochronology (dating method that uses annual growth rings of
trees) is the mostly used lab technique. It allows age determination of
stems and dating of punctual events such as fires or fluctuations of
water levels when looking at scars. It is also used to evaluate the
effect of climate (dendroclimatology) and other parameters on radial
growth of trees.
Some examples of studies carried out or currently in progress: Jack
pine and red pine stand dynamics following fire, historical
reconstitution of fire regimes in Abitibi, the influence of water levels
fluctuations on black ash stand dynamics, reconstitution by
dendroclimatology of over 800 years for white cedar. Growth and dynamics
of tree species at their northern limit of distribution.
Applications to silviculture and forest management
The objective is to establish the relationship between the ecological
information we have on natural forest ecosystems and the different
interventions for timber harvest. The preferred approach is to find out
how stand and landscape silvicultural operations can emulate natural
disturbances. Studies mostly concern the effect of forest management on
ecosystem biodiversity and resilience. This work is done in
collaboration with government agencies and the industry, in particular
the activities of the NSERC/UQAT/UQAM Industrial Chair in Sustainable
Forest Management and the
Research Forest of Duparquet Lake (FERLD).
Some examples of studies carried out or currently in progress:
Characterization of the biodiversity in old growth forests; Comparison
of the effects of fire and harvest on resilience and plant diversity of
forest ecosystems; Impact of intensive forestry on biodiversity.
M.Sc. and Ph.D. positions available
I am currently looking for M.Sc. students to work on a project which will
look at insect biodiversity and the importance of coarse woody debris in managed
and unmanaged forest in northern Québec Please navigate to
Jobs section for further information.
Email : work.timothy[at]uqam.ca
Publications : (see complete list)
- David Gervais, David Greene, Timothy Work, 2012. Causes of variation in wood-boring beetle damage in fire-killed black spruce (Picea mariana) forests in the central boreal forest of Quebec Ecoscience 19(4):398-403
- A.M. Liebhold, Timothy Work, D.G. McCullough, J.F. Cavey, 2006. Airline Baggage as a Pathway for Alien Insect Species Invading the United States. American Entomologist 53(1):48-54.
- D.G. McCullough, Timothy Work, J.F. Cavey, A.M. Liebhold, D. Marshall, 2006. Interceptions of nonindigenous plant pests at US ports of entry and border crossings over a 17-year period. Biological Invasions 8(4):611-630.
- J. Klimaszewski, G. Pelletier, C. Germain, Timothy Work, C. Hebert, 2006. Review of Oxypoda species in Canada and Alaska (Coleoptera, Staphylinidae, Aleocharinae): Systematics, bionomics, and distribution. Canadian Entomologist 138(6):737-852.
- J. Klimaszewski, D.W. Langer, Timothy Work, G. Pelletier, H.E.J. Hammond, C. Germain, 2005. The effects of patch harvesting and site preparation on ground beetles (Coleoptera, Carabidae) in yellow birch dominated forests of southeastern Quebec. Can. J. For. Res. 35(11):2616-2628.
- Timothy Work, D.G. McCullough, J.F. Cavey, R. Komsa, 2005. Arrival rate of nonindigenous insect species into the United States through foreign trade. Biological Invasions 7(2):323-332.