Job Title: Professor of Biology
Employer: York University
Place of Birth: Vancouver, BC, Canada
High School attended: West Vancouver High
Further Education: University of British Columbia (B.Sc. - Zoology, M.Sc. - Zoology, Ph.D. - Animal Resource Ecology).
Geographic focus of research: British Columbia
Brief synopsis of current research:
We study aquatic food web structure and function. Currently we are investigating competitive interactions between juvenile sockeye salmon and other pelagic planktivores (both vertebrates and invertebrates). Our work is based in several large BC sockeye nursery lakes. Some of these lakes receive fertilizer additions. The fertilizer is intended to stimulate algal growth and thus enhance zooplankton biomasses. Because zooplankton are consumed by juvenile sockeye, the working hypothesis is that fertilizer additions should increase growth and survival in juvenile sockeye. The objective of our research program is to test that idea. Our method is to track the movement of energy as it moves from algae to various zooplankton species and then on to various planktivores including juvenile sockeye. We generate these energy flow estimates through the collection of detailed field data which are used to parameterize production and consumption models. Our expectation is that the resulting food web models will allow us to determine the proportion of the original energy input that actually reaches sockeye, as well as the proportions that are lost during trophic transfers, and the proportions that go to other planktivores that compete with sockeye.
Biology, York University, 4700 Keele St, Toronto M3J 1P3
PEREZ-FUENTETAJA, A., P.J. DILLON, N.D. YAN & D.J. McQUEEN. 1999. Significance of dissolved organic carbon in the prediction of thermocline depth in small Canadian Shield Lakes. Aquatic Ecology. 33:127-133.
McQUEEN, D.J., C.W. RAMCHARAN, E. DEMERS, N.D. YAN, L.M. COMFORTI & A. PEREZ-FUENTETAJA. 1999. Chaoborus behavioural resopnses to changes in fish density. Arch. Hydrobiol. 145:165-179.
RUSAK, J.A., N.D. YAN, K. SOMERS and D.J. McQUEEN. 1998. The temporal coherence of zooplankton population abundances in neighboring north-temperate lakes. Am. Nat. 153: 46-58.
McQUEEN, D.J. 1998. Freshwater food web biomanipulation - a powerful tool for water quality improvement, but maintenance is required. Lakes and Reservoirs Research and Management. 3:83-94.
An 12 paper set of publications dealing with the results of the Dorset Food Web Piscivore Biomanipulation Project will appear during 2000 in Arch. Hydrobiol. Beih. Ergebn. Limnol.