publications
journal articles

workshop reports

reports

theses

conference presentations


journal articles

Year:
2005 | 2004 | 2003 | 2002 | 2001 |2000 | 1999 | 1998 | list all


2005

Dillon, P. J. and L. A Molot. 2005. Long-term trends in catchment export and lake retention of dissolved organic carbon, dissolved organic nitrogen, total iron and total phosphorus: the Dorset, Ontario study, 1978-1998. J. Geophys. Res. - Biogeosci. (in press).

Eimers, M. C., A. Paterson, P. J. Dillon, S. L. Schiff, B. Cumming and R. I. Hall. 2005. Sediment core records of S accumulation and S isotopic composition in central Ontario lakes. J. Paleolimn. (in press).

Molot, L. A., J. Hudson, P. J. Dillon and S. Miller. 2005. Effect of pH on photo-oxidation of dissolved organic carbon by hydroxyl radicals in stream water. Aquat. Sci. (in press).

Paterson, A. M., P. J. Dillon, N. J. Hutchinson, M. N. Futter, B. J. Clark, R. B. Mills, R. A. Reid and W. A. Scheider. 2005. A review of the components, coefficients, and technical assumptions of Ontario’s Lakeshore Capacity Model. Lake Reserv. Manage. (in press).

Watmough, S. A., J. Aherne, C. Alewell, P. Arp, S. Bailey, T. Clair, P. J. Dillon, L. Duchesne, C. Eimers, I. Fernandez, N. Foster, T. Larssen, E. Miller, M. Mitchell and S. Page. 2005. Sulphate, nitrogen and base cation budgets at 21 forested catchments in Canada, the United States and Europe. Environ. Monit. Assess. (in press).

Watmough, S. A., P. J. Dillon and E. K. Epova. 2005. Metal partitioning and uptake in central Ontario forests. Environ. Pollut. 134: 493-502.

Watmough, S. A., J. Aherne and P. J. Dillon. 2005. Effect of declining base cation concentration on freshwater critical load calculations. Environ. Sci. Technol. 39: 3255-3260.

Winter, J. G. and P. J. Dillon. 2005. Effects of golf course construction and operation on water chemistry of headwater streams on the Precambrian Shield. Environ. Pollut. 133: 243-253.

Winter, J. G. and P. J. Dillon. 2005. Export of nutrients from golf courses on the Precambrian Shield. Environ. Pollut. (in press).

Wu, F. C., R. B. Mills, R. D. Evans and P. J. Dillon. 2005 Photodegradation characteristics of dissolved organic matter in acidic waters. Can. J. Fish. Aquat. Sci. 62: 1019-1027.

Xie, Q., S. Lu, R. D. Evans, P. J. Dillon and H. Hintelmann. 2005. High precision Hg isotope measurement by MC-ICP-MS coupled with a gold trap technique: precision, accuracy and applications in environmental samples. J. Anal. Atom. Spectrom. 20: 515-522.

top of page


2004

Aherne, J., T. Larssen, P. J. Dillon and B. J. Cosby. 2004. Effects of climate events on elemental fluxes from forested catchments in Ontario, Canada: modelling drought-induced redox processes. Water Air Soil Pollut. Focus. 4: 37-48.

Aherne, J., M. Posch, P. J. Dillon and A. Henriksen. 2004. Critical loads of acidity for surface waters in south-central Ontario, Canada: regional application of the First-order Acidity Balance (FAB) model. Water Air Soil Pollut. Focus. 4: 25-36.

Buttle, J. M., P. J. Dillon and G. R. Eerkes. 2004. Hydrologic coupling of slopes, riparian zones and streams: an example from the Canadian Shield. J. Hydrol. 287: 161-177.

Cyr, H., P. J. Dillon and J. E. Parker. 2004. The temporal scaling of environmental variability in rivers and lakes. pp. 201-214 in Handbook of Scaling Methods in Aquatic Ecology: Measurement, Analysis, Simulation. L. Seuront and P.G. Strutton [eds], CRC Press, Boca Raton.

Eimers, M. C., P. J. Dillon and S. A. Watmough. 2004. Long-term (18-year) changes in sulphate concentrations in two Ontario headwater lakes and their inflows in response to decreasing deposition and climate variations. Hydrol. Proc. 18: 2617-2630.

Eimers, M. C., P. J. Dillon and S. L. Schiff. 2004. Sulphate flux from an upland forested catchment in south-central Ontario, Canada. Water Air Soil Pollut. 152: 3-22.

Eimers, M. C., P. J. Dillon and S. L. Schiff. 2004. An S-isotope approach to determine the relative contribution of redox processes to net SO4 export from upland and wetland-dominated catchments. Geochim. Cosmochim. Acta. 68: 3665-3674.

Laudon, H., P. J. Dillon, M. C. Eimers, R. G. Semkin and D. S. Jeffries. 2004. Climate induced episodic acidification of streams in central Ontario. Envir. Sci. Technol. 38: 6009-6015.

Molot, L. A., W. Keller, P. R. Leavitt, R. D. Robarts, M. J. Waiser, M. T. Arts, T. A. Clair, R. Pienitz, N. D. Yan, D. K. McNicol, Y. Prairie, P. J. Dillon, M. Macrae, R. Bello, R. N. Nordin, P. J. Curtis, J. P. Smol and M. S. V. Douglas. 2004. Risk analysis of dissolved organic carbon-mediated UVB exposure in Canadian inland waters. Can. J. Fish. Aquat. Sci. 61: 2511-2521.

Watmough, S. A. and P. J. Dillon. 2004. Major element fluxes from a coniferous catchment in central Ontario, 1983-1999. Biogeochem. 67: 369-398.

Watmough, S. A., M. C. Eimers, J. Aherne and P. J. Dillon. 2004. Climate effects on nitrate export from forested catchments in south central Ontario. Envir. Sci. Technol. 38: 2383-2388.

Watmough, S. A., T. C. Hutchinson and P. J. Dillon. 2004. Lead dynamics in the forest floor and mineral soils in south- central Ontario. Biogeochem. 71: 43-68.

Wu, F. C., R. D. Evans, P. J. Dillon and S. Schiff. 2004. Molecular size distribution characteristics of the metal-DOM complexes in stream waters by high-performance size-exclusion chromatography (HPSEC) and high-resolution inductively coupled plasma mass spectrometry (ICP-MS). J. Anal. At. Spectrom. 19: 979-983.

Wu, F., R.B. Mills, R. D. Evans and P.J. Dillon. 2004. Kinetics of metal-fulvic acid complexation using stopped-flow technique and three-dimensional excitation emission fluorescence spectrophotometer. Anal. Chem. 76: 110-113.

Wu, F., Y. Cai, R. D. Evans and P. J. Dillon. 2004. Complexation between Hg(II) and dissolved organic matter in stream waters: an application of fluorescence spectroscopy. Biogeochem. 71: 339-351.

Yan, N. D., R. Girard, J. Heneberry, B. Keller, J. Gunn, P. J. Dillon and K. M. Somers. 2004. Recovery of copepod, but not cladoceran, zooplankton from severe and chronic effects of multiple stressors. Ecol. Letters. 7: 452-460.

top of page


2003

Aherne, J., P.J. Dillon and B.J. Cosby. 2003. Acidification and recovery of aquatic ecosystems in south-central Ontario, Canada: regional application of the MAGIC model. Hydrol. Earth Sys. Sci. 7: 561-573.

Arnott, S. E., P. J. Dillon, K. Somers and B. Keller. 2003. Inter- and intra-annual chemical variability during the ice-free season in lakes with different flushing rates and acid deposition histories. Envir. Mon. Assess. 88: 21-37.

Arnott, S. E., B. Keller, P. J. Dillon, N. Yan, M. Paterson and D. Findlay. 2003. Using temporal coherence to determine the response to climate change in Boreal Shield lakes. Envir. Mon. Assess. 88: 365-388.

Clark, B. J., P. J. Dillon and L. A. Molot. 2003. Lake trout (Salvelinus namaycush) habitat volumes and boundaries in Canadian Shield lakes. pp. 111-117 in Boreal Shield Watersheds: Lake Trout Ecosystems in a Changing Environment. J.M. Gunn, R.J. Steedman and R.A. Ryder [eds.].

Creed, I. F., S. E. Sanford, F. D. Beall, L. A. Molot and P. J. Dillon. 2003. Cryptic wetlands: integrating hidden wetlands in regression models of the export of dissolved organic carbon from forested landscapes. Hydrol. Proc. 17: 3629-3648.

Dillon, P. J., B. J. Clark, L. A. Molot and H. E. Evans. 2003. Predicting optimal habitat for lake trout (Salvelinus namaycush Walbaum) in Canadian Shield lakes. Can. J. Fish. Aquat. Sci. 60: 959-970.

Dillon, P. J., B. J. Clark and H. E. Evans. 2003. The effects of phosphorus and other nutrients on lake trout production and habitat. pp. 119-131 in Boreal Shield Watersheds: Lake Trout Ecosystems in a Changing Environment. J.M. Gunn, R.J. Steedman and R.A. Ryder [eds.].

Dillon, P. J., K. M. Somers, J. Findeis and M. C. Eimers. 2003. Coherent responses of lakes in Ontario, Canada to reductions in sulphur deposition: the effects of climate on sulphate concentrations. Hydrol. Earth Sys. Sci. 7: 583-595.

Dillon, P.J., B.L. Skjelkvåle, K.M. Somers and K. Tørseth. 2003. Coherent response of sulphate concentration in Norwegian lakes: relationships with sulphur deposition and climate indices. Hydrol. Earth Sys. Sci. 7: 596-608.

Eimers, M. C., P. J. Dillon, S. L. Schiff and D. S. Jeffries. 2003. The effects of drying and re-wetting and increased temperature on sulphate release from upland and wetland material. Soil Biol. Biochem. 35: 1663-1673.

Faulkenham, S. E., R. I. Hall, P. J. Dillon and T. Karst-Riddoch. 2003. Effects of drought-induced acidification on diatom communities in acid-sensitive Ontario lakes. Limnol. Oceanogr. 48: 1662-1673.

Hudson, J. J., P. J. Dillon and K. M. Somers. 2003. Long-term patterns in dissolved organic carbon in boreal lakes: the role of incident radiation, precipitation, air temperature, southern oscillation and acid deposition. Hydrol. Earth Sys. Sci. 7: 390-398.

Jeffries, D. S., T. A. Clair, S. Couture, P. J. Dillon, J. Dupont, D. K. McNicol, M. A. Turner and R. Weeber. 2003. Assessing the recovery of lakes in southeastern Canada from the effects of acidic deposition. Ambio. 32: 176-182.

Jeffries, D. S., T. G. Brydges, P. J. Dillon and W. Keller. 2003. Monitoring the results of Canada/U.S.A. acid rain control programs: some lake responses. Envir. Monit. Assess. 88: 3-19.

Kaste, Ø. and P. J. Dillon. 2003. Inorganic nitrogen retention in acid-sensitive lakes in southern Norway and southern Ontario, Canada - a comparison of mass balance data with an empirical N retention model. Hydrol. Proc. 17: 2393-2407.

Molot, L. A. and P. J. Dillon. 2003. Variation in iron, aluminum and dissolved organic carbon mass transfer coefficients in lakes. Wat. Res. 37: 1759-1768.

Molot, L. A., S. A. Miller, P. J. Dillon and C. G. Trick. 2003. A simple method for assaying extracellular hydroxyl radical activity and its application to natural and synthetic waters. Can. J. Fish. Aquat. Sci.. 60: 203-213.

Quinlan, R., A.M. Paterson, R.I. Hall, P.J. Dillon, A.N. Wilkinson, B.F. Cumming, M.S.V. Douglas and J.P. Smol. 2003. A landscape approach to examining spatial patterns of limnological variables and long-term environmental change in a southern Canadian lake district. Freshwat. Biol. 48: 1676-1697.

Watmough, S. A., J. Aherne and P. J. Dillon. 2003. Potential impact of forest harvesting on lake chemistry in south-central Ontario at current levels of acid deposition. Can. J. Fish. Aquat. Sci. 60: 1095-1103.

Watmough, S. A. and P. J. Dillon. 2003. Do critical load models adequately protect forests? A case study in south-central Ontario. Can. J. For. Res. 33: 1544-1556.

Watmough, S. A. and P. J. Dillon. 2003. Mycorrhizal Ca weathering in base-poor forests. Nature 423: 823-824.

Watmough, S. A. and P. J. Dillon. 2003. Base cation and nitrogen budgets for a mixed hardwood catchment in south-central Ontario. Ecosystems 6: 675-693.

Watmough, S. A. and P. J. Dillon. 2003. Base cation and nitrogen budgets for seven forested catchments in south-central Ontario, 1983-1999. For. Ecol. Manage. 177: 155-177.

Watmough, S. A. and P. J. Dillon. 2003. Calcium losses from a forested catchment in south-central Ontario, Canada. Environ. Sci. Technol. 37: 3085-3089.

Winter, J.G., P.J. Dillon and K.M. Somers. 2003. Impacts of golf course construction and operation on headwater streams: bioassessment using benthic algae. Can. J. Bot. 81: 848-858.

Wu, F., R.D. Evans and P.J. Dillon. 2003. Separation and characterization of NOM by high-performance liquid chromatography and on-line three dimensional excitation emission matrix fluorescence detection. Environ. Sci. Technol. 37: 3687-3693.

top of page


2002

Clark, B. J., P. J. Dillon, L. A. Molot and H. E. Evans. 2002. Application of a hypolimnetic oxygen profile model to lakes in Ontario. Lake Reserv. Manage. 18: 32-43.

Eimers, M. C. and P. J. Dillon. 2002. Climate effects on sulphate flux from forested catchments in south-central Ontario. Biogeochem. 61: 337-355.

Henriksen, A., P. J. Dillon and J. Aherne. 2002. Critical loads of acidity for surface waters in south-central Ontario, Canada: regional application of the Steady-State Water Chemistry (SSWC) model. Can. J. Fish. Aquat. Sci. 59: 1287–1295.

Reavie, E. D., J. P. Smol and P. J. Dillon. 2002. Inferring long-term nutrient changes in southeastern Ontario lakes: comparison of a theoretical and diatom-based paleolimnological model. Hydrobiol. 481: 61-74.

Schiff, S. L., K. J. Devito, R. J. Elgood, P. M. McCrindle, J. Spoelstra and P. J. Dillon. 2002. Two adjacent catchments: dramatically different NO3 export. Wat. Resourc. Res. 38: 28-1-13.

Watmough, S. A. and P. J. Dillon. 2002. The impact of acid deposition and forest harvesting on lakes and their catchments in south-central Ontario: a critical loads approach. Hydrol. Earth Sys. Sci. 6: 833-848.

Winter, J. G., P. J. Dillon, M. Futter, K. H. Nicholls, W. A. Scheider and L. Scott. 2002. Total phosphorus and total nitrogen budgets for Lake Simcoe, Ontario (1990-1998). J.Gt. Lakes Res. 28: 301-314.

Winter, J. G., K. M. Somers, P. J. Dillon, C. Paterson and R. A. Reid. 2002. Impacts of golf courses on macroinvertebrate community structure in Precambrian Shield streams. J. Env. Qual. 31: 2015-2025.

Wu, F. C., R. D. Evans and P. J. Dillon. 2002. Fractionation and characterization of fulvic acid by immobilized metal ion affinity chromatography. Anal. Chim. Acta. 452: 85-93.

Wu, F. C., R. D. Evans and P. J. Dillon. 2002. High-performance liquid chromatographic fractionation and characterization of fulvic acid. Anal. Chim. Acta. 464: 47-55.

top of page


2001

Dillon, P. J. and H. E. Evans. 2001. Comparison of iron accumulation in lakes using sediment core and mass balance calculations. Sci. Tot. Environ. 266: 211-219.

Dillon, P. J. and H. E. Evans. 2001. Long-term changes in the chemistry of a soft-water lake under changing acidic deposition rates and climate fluctuations. Verh. Internat. Verein. Limnol. 27: 2615-2619.

Dillon, P.J., D.J. McQueen, C.W. Ramcharan, N.D. Yan and J.J. Hudson. 2001. Changes in nutrient and ion chemistry. Part 10 of the Dorset food web piscivore manipulation project. Archiv. Hydrobiol. Spec. Issues Advanc. Limnol. 56: 227-255.

Evans, R. D., H. Hintelmann and P. J. Dillon. 2001. Measurement of high precision isotope ratios for mercury from coals using transient signals. J. Anal. At. Spectrom. 16: 1064-1069.

Gennings, C., L. A. Molot and P. J. Dillon. 2001. Enhanced photochemical loss of organic carbon in acidic waters. Biogeochem. 52: 339-354.

Hintelmann, H., P. J. Dillon, R. D. Evans, J. W. M. Rudd and D. Bodaly. 2001. Comments on “Variations in isotope composition of mercury in freshwater sediments sequence and food web” by Jackson. Can. J. Fish Aquat. Sci. 58: 2309-2311.

Keller, W., P. J. Dillon, J. Heneberry, M. Malette and J. Gunn. 2001. Sulphate in Sudbury, Ontario, Canada lakes: recent trends and status. Wat. Air Soil Pollut. 130: 793-798.

McQueen, D.J., C.W. Ramcharan, N.D. Yan, E. Demers, A. Perez-Fuentetaja and P.J. Dillon. 2001. The Dorset food web piscivore manipulation project: Objectives, methods, the physical-chemical setting. Archiv. Hydrobiol. Spec. Issues Advanc. Limnol. 56: 1-21.

Watmough, S. A. and P. J. Dillon. 2001. Base cation losses from a coniferous catchment in central Ontario, Canada. Wat. Air Soil Pollut. Focus 1: 507-524.

top of page


2000

Benson, F. J., J. D. Lenters, J. J. Magnuson, M. Stubbs, T. K. Kratz, P. Dillon, R. E. Hecky, and R. Lathrop. 2000. Regional coherence of climatic and lake thermal variables of four lake districts in the Upper Great Lakes Region of North America. Freshwat. Biol. 43: 517-527.

Perez-Fuentetaja, A., D.J. McQueen, N.D. Yan and P.J. Dillon. 2000. Zooplankton biomass rarely improves predictions of chlorophyll concentration in Canadian Shield lakes that vary in pH. Aquatic Ecol. 34: 127-136.

Webster, K.E., P.A. Soranno, S.B. Baines, C.J. Bowser, T.K. Kratz, P.J. Dillon, P. Campbell, E.J. Fee and R.E. Hecky. 2000. Structuring features of lake districts: hydrologic controls on lake chemical responses to drought. Freshwater Biol. 43:499-515.

top of page


1999

Devito, K. J., A. R. Hill and P. J. Dillon. 1999. Episodic sulphate export from wetlands in acidified headwater catchments: Prediction at the landscape scale. Biogeochem. 44: 187-204.

Perez-Fuentetaja, A., P. J. Dillon, N. D. Yan and D. J. McQueen. 1999. Significance of dissolved organic carbon in the prediction of thermocline depth in small Canadian Shield lakes. Aquat. Ecol. 33: 127-133.

Stoddard, J. L., D. S. Jeffries, A. Lukeville, T. A. Clair, P. J. Dillon, C. T. Driscoll, M. Forsius, M. Johannessen, J. S. Kahl, J. H. Kellogg, A. Kemp, J. Mannio, D. Monteith, P. S. Murdoch, S. Patrick, A. Rebsdorf, B. L. Skjelkvale, M. P. Stainton, T. Traaen, H. van Dam, K. E. Webster, J. Wieting and A. Wilander. 1999. Regional trends in aquatic recovery acidification in North America and Europe, 1980 - 95. Nature. 401: 575-578.

top of page


1998

Schiff, S., R. Aravena, R. Elgood, P. Dillon and S. Trumbore. 1998. Precambrian shield wetlands: hydrologic control of the sources and export of DOM. Climate Change. 40: 167-188.

top of page