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W. (Bill) Keller

W. (Bill) Keller

Director, Climate Change and Multiple Stressor Aquatic Research

Living with Lakes Centre, Laurentian University

935 Ramsey Lake Road

Sudbury, ON

P3E 2C6

bkeller@laurentian.ca

t. 705-671-3858

f. 705-671-3857


Research Interests

Documenting and understanding chemical and biological recovery processes in damaged aquatic systems, and investigating the combined effects of multiple stressors (eg. acidification, climate change, UV-B irradiance).

 

Publications (last 6 years)

Greenaway, C.M., AM. Paterson, W. Keller, and J.P. Smol. 201_. Scaled-chrysophyte assemblage responses to water quality improvements in lakes recovering from marked acidification and metal-contamination near Wawa, Ontario, Canada. (in press, J. Limnol.)

Greenaway, C.M., A.M. Paterson, W. Keller, and J.P. Smol. 201_. Dramatic diatom community responses in lakes recovering from acidification and metal- contamination near Wawa, Ontario, Canada: a paleolimnological perspective. (in press, Can. J. Fish. Aquat. Sci.).

Khan, F.R., W. Keller, N.D. Yan, P.G. Welsh, C.M. Wood, and J,C. McGeer. 2011. Application of biotic ligand and toxic unit modeling approaches to predict improvement in species richness in smelter damaged lakes near Sudbury. Environ. Sci Technol. dx.doi.org/10.1021/es203135p.

MacPhee, S., S. Arnott, and W. Keller. 2011. Thermal structure influences macroinvertebrate predation on crustacean zooplankton: implications of climate warming for shallow lakes. J. Plank. Res. 33: 1586-1595.

Valois, A.E., W. Keller, and C.W. Ramcharan. 2011. Recovery in a multiple stressor environment: using the reference condition approach to examine zooplankton community change along opposing stress gradients. J. Plank. Res. 33: 1417-1429.

Tropea, A.E., A.M. Paterson, W. Keller, and J.P. Smol. 2010. Diatoms as indicators of long-term nutrient enrichment in metal contaminated lakes from Sudbury, Ontario. Lake and Reserv.  Mgmt. 27: 48-60.

Valois, A., W. Keller, and C. Ramcharan. 2010. Abiotic and biotic processes in recovering lakes: the role of metal toxicity and fish predation as barriers to zooplankton recovery. Freshwat. Biol. 55: 2585-2597.

Tropea, A.E., A.M. Paterson, W. Keller, and J.P. Smol. 2010. Sudbury sediments revisited: evaluating limnological recovery in a multiple stressor environment. Water Air Soil Pollut. 210: 317-333. DOI 10.1007/s11270-009-0255x.

Shurin, J.B., M. Winder, R. Adrian, W. Keller, B. Matthews, A.M. Paterson, M. Paterson, B. Pinel- Alloul, J.A. Rusak, and N.D. Yan. 2010. Environmental stability and lake zooplankton diversity – contrasting effects of chemical and thermal variability. Ecology Letters 13: 453- 463.

Helmus, M.R., W. Keller, M.J. Paterson, N.D. Yan, C.H. Cannon, and J.A. Rusak. 2010. Communities contain closely related communities during ecosystem disturbance. Ecology Letters 13: 162-174.

Adrian, R., C.M. O’Reilly, H. Zagarese, S.B. Baines, D.O. Hessen, W. Keller, D.M. Livingstone, R. Sommaruga, D. Straile, E. Van Donk, G.A. Weyhenmeyer, and M. Winder. 2009. Lakes as sentinels of climate change. Limnol. Oceanogr. 54(6, part 2): 2283-2297.

Keller, W. 2009. Limnology in northeastern Ontario: from acidification to multiple stressors. Can. J. Fish. Aquat. Sci. 66: 1189-1198.

Jeziorski, A., N.D. Yan, A.M. Paterson, A.M. DeSellas, M.A. Turner, D.S. Jeffries, W. Keller, R.C. Weeber, D.K. McNicol, M.E. Palmer, K. McIver, K. Arseneau, B.K. Ginn, B.F. Cumming, and J.P. Smol. 2008. The widespread threat of calcium decline in freshwaters. Science 322: 1374-1377.

Keller, W., A. Paterson, K. Somers, P. Dillon, J. Heneberry, and A. Ford. 2008. Relationships between dissolved organic carbon concentrations, weather, and acidification in small Boreal Shield lakes. Can. J. Fish. Aquat. Sci. 65: 786-795.

Yan, N.D., K.M. Somers, R.E. Girard, A.M. Paterson, B. Keller, C.W. Ramcharan, J.A. Rusak, R. Ingram, G.E. Morgan, and J.M. Gunn. 2008. Long-term trends in zooplankton of Dorset, Ontario lakes: the probable interactive effects of changes in pH, TP, DOC and predators. Can. J. Fish. Aquat. Sci. 65: 862-877.

Winter, J.G., W. Keller, A.M. Paterson and N.D. Yan. 2008. Three decades of recovery of the phytoplankton community in Clearwater Lake (Sudbury, Canada) from acid and metal contamination. Verh. Internat. Verein. Limnol. 30: Part 2, 247-252.

Tanentzap, A.J., N.D. Yan, W. Keller, R. Girard, J. Heneberry, J.M. Gunn, D.P. Hamilton, and P.A. Taylor. 2007. Cooling lakes while the world warms: effects of forest re-growth and increased dissolved organic matter on the thermal regime of a temperate urban lake. Limnol. Oceanogr. 53: 404-410.

Keller, W. 2007. Implications of climate warming for Boreal Shield lakes: a review and synthesis. Environ. Reviews 15: 99-112. doi:10.1139/A07-002.

Keller, W., N.D. Yan, J.M. Gunn, and J. Heneberry. 2007. Recovery of acidified lakes: lessons from Sudbury, Ontario, Canada. Water Air Soil Pollut. Focus 7: 317-322. DOI 10.1007/s11267-006-9061-2.

Graham, M.D., R.D. Vinebrooke, W. Keller, J. Heneberry, K.H. Nicholls, and D.L. Findlay. 2007. Comparative responses of phytoplankton during chemical recovery in atmospherically and experimentally acidified lakes J. Phycol. 43: 908-923.

Monteith, D.T., J.L. Stoddard, C.D. Evans, H.A. de Wit, M. Forsius, T. Hogasen, A. Wilander, B.L. Skjelkvale, D.S. Jeffries, J. Vuorenmaa, B. Keller, J. Kopacek, and J. Vesely. 2007. Dissolved organic carbon trends resulting from changes in atmospheric deposition chemistry. Nature 450: 537-541.

Clair, T.A., J. Aherne, I.F. Dennis, M. Gilliss, S. Couture, D. McNicol, R. Weeber, P.J. Dillon, W. Keller, D.S. Jeffries, S. Page, K. Timoffee, and B.J. Cosby. 2007. Past and future changes to acidified eastern Canadian lakes: a geochemical modeling approach. Applied Geochemistry 22: 1189-1195. DOI10.1016/j.apgeochem.2007.03.010.

Keller, W., J. Heneberry, J. Leduc, J. Gunn, and N. Yan. 2006. Variations in epilimnion thickness in small Boreal Shield lakes: relationships with weather, transparency and acidification. Environ. Monit. Assess. 115: 419-431)