Publications of LINX I

Updated 29 July 2004

Mulholland, P.J., J.L. Tank, D.M. Sanzone, W. Wollheim, B.J. Peterson, J.R. Webster, and J.L. Meyer.  2000.  Food resources of stream macroinvertebrates determined by natural-abundance stable C and N isotopes and a ¹⁵N addition.  Journal of the North American Benthological Society 19:145-157.

Webster, J.R.  2000.  Intersite research among stream ecologists at LTER sites.  The Network Newsletter 13(1): 8-9.

Mulholland, P.J., J.L. Tank, D.M. Sanzone, W. Wollheim, B.J. Peterson, J.R. Webster, and J.L. Meyer.  2000.  Nitrogen cycling in a deciduous forest stream determined from a tracer ¹⁵N addition experiment in Walker Branch, Tennessee.  Ecological Monographs 70:471-493.

Tank, J.L., J.L. Meyer, D.M. Sanzone, P.J. Mulholland, J.R. Webster, B.J. Peterson, and N.E. Leonard.  2000.  Analysis of nitrogen cycling in a forest stream during autumn using a ¹⁵N tracer addition.  Limnology and Oceanography 45:1013-1029.

Dodds, W.K., M.A. Evans-White, N. Gerlanc, L. Gray, D. A. Gudder, M.J. Kemp, A.L. López, D. Stagliano, E. Strauss, J.L. Tank, M.R. Whiles, and W. Wollheim.  2000. Quantification of the nitrogen cycle in a prairie stream. Ecosystems 3:574-589.

Wollheim, W.M., B.J. Peterson, L.A. Deegan, J.E. Hobbie, B. Hooker, W.B. Bowden, K.J. Edwardson, D.B. Arscott, A.E. Hershey, and J. Finlay. 2001. Influence of stream size on ammonium and suspended particulate nitrogen processing. Limnology and Oceanography 46:1-13.

Peterson, B.J., W. Wollheim, P.J. Mulholland, J.R. Webster, J.L. Meyer, J.L. Tank, Marti, E., W.B. Bowden, H.M. Valett, A.E. Hershey, W.H. McDowell, W.K. Dodds, S.K. Hamilton, S.V. Gregory, and D.D. Morrall.  2001.  Control of nitrogen export from watersheds by headwater streams.  Science 292:86-90.

Raikow, D.F. and S.K. Hamilton.  2001.  Bivalve diets in a midwestern US stream: A stable isotope enrichment study. Limnology and Oceanography 46:514-522.

Mulholland, P.J., J.L. Tank, D.M. Sanzone, J.R. Webster, W. Wollheim, B.J. Peterson, and J.L. Meyer.  2001.  Ammonium and nitrate uptake lengths in a small forested stream determined by ¹⁵N tracer and short-term nutrient enrichment experiments. Verh. Internat. Verein. Limnol. 27:1320-1325.

Hamilton, S.K., J.L. Tank, D.F. Raikow, W.M. Wollheim, B.J. Peterson, and J.R. Webster.  2001.  Nitrogen uptake and transformation in a midwestern US stream: A stable isotope enrichment study.  Biogeochemistry 54:297-340.

Mulholland, P.J., C.S. Fellows, J.L. Tank, N.B. Grimm, J.R. Webster, S.K. Hamilton, E. Marti, L. Ashkenas, W.B. Bowden, W.K. Dodds, W.H. McDowell, M.J. Paul, and B.J. Peterson.  2001.  Inter-biome comparison of factors controlling stream metabolism.  Freshwater Biology 46:1503-1517.

Martin, L.A. , P.J. Mulholland, J.R. Webster, and H.M. Valett.  2001.  Denitrification potential in sediments of headwater streams in the southern Appalachian Mountains, USA. Journal of the North American Benthological Society 20:505-519.

Tank, J.L., P.J Mulholland, J.L. Meyer, W.B. Bowden, J.R Webster, and B.J Peterson.  2001.  Contrasting food web linkages for the grazing pathway in three temperate forested streams using ¹⁵N as a tracer. Verh. Internat. Verein. Limnol. 27:2832-2835.

Sanzone, D.M., J.L. Tank, P.J. Mulholland, J.L. Meyer, and S.E.G. Findlay.  2001.  Microbial incorporation of nitrogen in stream detritus. Hydrobiologia 464: 27-35.

Evans-White, M., W. K. Dodds, L. Gray and K. M. Fritz. 2001. A  comparison of the trophic ecology of crayfish (Orconectes nais (Faxon)  and Orconectes neglectus (Faxon)) and central stonerollers (Compostoma  anomalum (Rafinesque)): omnivory in a tallgrass prairie stream. Hydrobiologia 462:131-144.

Merriam, J.L. W.H. McDowell, J.L. Tank. W.M. Wollheim, C.C. Crenshaw, and S.L. Johnson.  2002.  Nitrogen dynamics, retention and transport in a tropical stream.  Freshwater Biology 47:143-160.

Crenshaw, C., H.M. Valett, J.L. Tank.  2002.  Effects of coarse particulate organic matter on fungal biomass and invertebrate density in the subsurface of a headwater stream. Journal of the North American Benthological Society 21:28-42.

Dodds, W.K., A.J. López, W.B. Bowden, S. Gregory, N.B. Grimm, S.K. Hamilton, A.E. Hershey, E. Martí, W.H. McDowell, J.L. Meyer, D. Morrrall, P.J. Mulholland, B.J. Peterson, J.T. Tank, H.M. Valett, J.R. Webster, and W. Wollheim.  2002.  N uptake as a function of concentration in streams.  Journal of the North American Benthological Society 21:206-220.

Mulholland, P.J., J.L. Tank, J.R. Webster, W.B. Bowden, W.K. Doods, S.V. Gregory, N.B. Grimm, S.K. Hamilton, S.L. Johnson, E. Martí, W.H. McDowell, J.L. Merriam, J.L. Meyer, B.J. Peterson, H.M. Valett, and W.M. Wolheim.  2002.  Can uptake length in streams be determined by nutrient addition experiments?  Results from an inter-biome comparison study.  Journal of the North American Benthological Society 21:544-560,

Findlay, S., J. Tank, S. Dye, H.M. Valett, P. Mulholland, W.H. McDowell, S.L. Johnson, S.K. Hamilton, J. Edmonds, W.K. Dodds, W.B. Bowden.  2002.  A cross-system comparison of bacterial and fungal biomass in detritus pools of headwater streams.  Microbial Ecology 43:55-66.

Sanzone, D.M., J.L. Meyer, E. Martí, E.P. Gardiner, J.L. Tank, and N.B. Grimm.  2003.  Carbon and nitrogen transfer from a desert stream to riparian predators.  Oecologia 134:238-250.

Webster, J.R., P.J. Mulholland, J.L. Tank, B.J. Peterson, W.R. Dodds, H.M. Valett, W.B.  Bowden, C.N. Dahm, S. Findlay, S.V. Gregory, N.B. Grimm, S.K. Hamilton, S.L. Johnson, E. Marti, W.H. McDowell, J.L. Merriam, D.D. Morrall, J.L. Meyer, S.A. Thomas, and W.M. Wollheim.  2003.  Factors affecting ammonium uptake in streams – an inter-biome perspective.  Freshwater Biology 48:1329-1352.

Rezanka, K.M., and A.E. Hershey.  2003.  Examining primary producer - consumer interactions in a Lake Superior tributary using 15N-tracer, grazer-reduction, and nutrient-bioassay experiments.  Journal of the North American Benthological Society 22:371-387.

Tank, J., and W.K. Dodds.  2003.  Nutrient limitation of epilithic and epixylic biofilms in ten North American Streams.  Freshwater Biology 48:1031-1049.

Dodds, W.K., E. Martí, J.L. Tank, J. Pontius, S.K. Hamilton, N.B. Grimm, W.B. Bowden, W.H. McDowell, B.J. Peterson, H.M. Valett, J.R. Webster, and S.V. Gregory.  2004.  Carbon and nitrogen stoichiometry and nitrogen cycling rates in streams.  Oecologia 140:458-467.

Ashkenas, L.R., S.L. Johnson, S.V. Gregory, J.L. Tank, and W.M. Wollheim. 2004. A stable isotope tracer study of nitrogen uptake and transformation in an old-growth forest stream. Ecology 85:1725-1739.

Hamilton, S.K., J.L.Tank, D.F. Raikow, E. Siler, N.J. Dorn, and N. Leonard. 2004. The role of in-stream vs. allochthonous N in stream food webs: Modeling the results of an isotope addition experiment. Journal of the North American Benthological Society 23:429-448.

Schade, J.D., J.R. Welter, E. Marti, and N.B. Grimm. 2004. Hydrological exchange and N retention in an arid-land riparian ecosystem.  Journal of the North American Benthological Society 24:19-28.

Theses and Dissertations:

Rezanka, K.M.  1999.  Examining primary producer - consumer interactions in a Lake Superior   tributary. M.S. Thesis, University of Minnesota-Duluth, Duluth, Minnesota.

Martin, L. 2000.  Denitrification in sediments of headwater streams in the southern Appalachian Mountains, USA.  M.S. Thesis, Virginia Polytechnic Institute and State University, Blacksburg, Virginia.

Kysley, G.L. 2000. Investigating fine particulate organic matter dynamics in a nutrient limited arctic stream.  M.S. Thesis, University of Minnesota-Duluth, Duluth, Minnesota.

Evans-White , M.E.  2000.  A comparison of the functional role of crayfish and the central stoneroller in a tallgrass prairie stream.  M.S. Thesis.  Kansas State University, Manhattan, Kansas.

Kemp, M.J. 2001. Factors controlling spatial and temporal patterns of nitrogen cycling in prairie streams.  PH. D. Dissertation, Kansas State University, Manhattan, Kansas.

Merriam, J.L.  2001.  Characterizing nitrogen dynamics, retention and transport in a tropical rainforest stream using an in situ 15N addition.  MS thesis, University of New Hampshire, Durham, New Hampshire.

Sanzone, D.M.  2001.  Linking communities across ecosystem boundaries: the influence of aquatic subsidies on terrestrial predators, Doctoral Thesis, University of Georgia, Athens, GA, 263 pp.

Presentations at meetings:

Webster, J.R., P.J. Mulholland, J.L. Meyer, and B.J. Peterson.  Nitrogen uptake, retention, and cycling in stream ecosystems:  an intersite N-15 experiment. Chapman Conference on Nitrogen Cycling in Forested Catchments. Sunriver, Oregon. 16-20 September 1996.

Wollheim, W.M., B.J. Peterson, J.L. Tank, J.L. Meyer, P.J. Mulholland, and J.R. Webster.  The impact of recycling on estimates of travel distance in ¹⁵N experiments.  North American Benthological Society meeting, San Marcos, Texas, 26-30 May 1997.  Bulletin of the North American Benthological Society 14:119.

Sanzone, D.M., J.L. Tank, P.J. Mulholland, J.L. Meyer, J.R. Webster, and B.J. Peterson.  Use of chloroform fumigation method to extract microbial nitrogen in stream ecosystems.  North American Benthological Society meeting, San Marcos, Texas, 26-30 May 1997.  Bulletin of the North American Benthological Society 14:196.

Tank, J.L.,  P.J. Mulholland, J.L. Meyer, J.R. Webster,  B.J. Peterson, and D.M.  Sanzone.  Nitrogen uptake, retention, and cycling in stream ecosystems:  results from the first site in the Lotic Intersite Nitrogen Study (LINX).  North American Benthological Society meeting, San Marcos, Texas, 26-30 May 1997.  Bulletin of the North American Benthological Society 14:201.

Tank, J.L.,  P.J. Mulholland, J.L. Meyer, J.R. Webster,  B.J. Peterson, and D.M. Sanzone.  Nitrogen uptake, retention, and cycling in a southern Appalachian stream:  LINX Site 1.  Ecological Society of America meeting, Albuquerque, New Mexico, 11-14 August 1997.  Bulletin of the Ecological Society of America78:194.

Mulholland, P.J., J.L. Tank, D.M. Sanzone, M.E. Carter, B.J. Peterson, W. Wollheim, J.R. Webster, and J.L. Meyer.  A N-15 tracer study of nitrogen uptake and cycling in Walker Branch, Tennessee. North American Benthological Society meeting, Charlottetown, Prince Edward Island, 2-5 June 1998.  Bulletin of the North American Benthological Society 15:125-126.

Bowden, W.B., J. Merriam, J. Tank, R. Hall, K. MacNeale, E. Bernhardt, P. Mulholland, J. Webster, B. Sichol, and A. Stiles. The Hubbard Brook LINX Project:  Nitrogen transformations in a northern hardwood forest stream. North American Benthological Society meeting, Charlottetown, Prince Edward Island, 2-5 June 1998.  Bulletin of the North American Benthological Society 15:126.

Webster, J.R. J.L. Tank, P.J. Mulholland, N.B. Grimm, E. Marti, B. Bowden, and M. Vallett.  Terrestrial biomes and stream hydrology. North American Benthological Society meeting, Charlottetown, Prince Edward Island, 2-5 June 1998.  Bulletin of the North American Benthological Society 15:127.

Sanzone, D.M., J.L. Tank, P.J. Mulholland, and J.L. Meyer.  Microbial uptake of isotopically labeled nitrogen in three forested streams:  a test of the chloroform- fumigation extraction method.  North American Benthological Society meeting, Charlottetown, Prince Edward Island, 2-5 June 1998.

Peterson, B. J.,  W. M. Wollheim, B. Bowden, N. Grimm, J. Meyer, P. Mulholland, J. Tank, and J. Webster. Transformation and export of ammonium nitrogen during ¹⁵NH₄ tracer  additions to streams. North American Benthological Society meeting, Charlottetown, Prince Edward Island, 2-5 June 1998.  Bulletin of the North American Benthological Society 15:127.

Wollheim, W. M., B. J. Peterson, B. Bowden, N. Grimm, J. Meyer, P. Mulholland, J. Tank, and J. Webster.  Estimating ammonium S_w using ¹⁵N-biota and water column ¹⁵NH₄ during tracer additions to streams. North American Benthological Society meeting, Charlottetown, Prince Edward Island, 2-5 June 1998.  Bulletin of the North American Benthological Society 15:127-128.

Tank, J.L., P.J Mulholland, J.L. Meyer, J.R Webster, B.J Peterson, and D. Sanzone.  Nitrogen uptake, retention, and recycling in a southern Appalachian stream:  LINX Site 1. North American Benthological Society meeting, Charlottetown, Prince Edward Island, 2-5 June 1998.  Bulletin of the North American Benthological Society 15:128.

Martí, E., N.B. Grimm, and J.L. Tank. 1998. Desert LINX: nitrogen cycling in an aridland stream ecosystem.  North American Benthological Society meeting, Charlottetown, Prince Edward Island, 2-5 June 1998.

Grimm, N.B., E. Martí, and J.L. Tank. 1998. Nitrogen cycling in a dryland stream ecosystem as determined by an ¹⁵N tracer experiment (LINX). XXVII Congress Internat. Assoc. of Theoretical and Applied Limnology, Dublin, Ireland, 9-14 August 1998.

Tank, J.L., P.J Mulholland, J.L. Meyer, W.B. Bowden, J.R Webster, B.J Peterson, and D. Sanzone.  Nitrogen cycling in grazing vs. detrital pathways in 3 temperate, forested streams. XXVII Congress Internat. Assoc. of Theoretical and Applied Limnology, Dublin, Ireland, 9-14 August 1998.

Mulholland, P.J., J.L. Tank, D.M. Sanzone, B.J. Peterson, W. Wollheim, J.R. Webster, and J.L. Meyer.  Ammonium uptake length in a small forested stream determined by ¹⁵N tracer and ammonium enrichment experiments. XXVII Congress Internat. Assoc. of Theoretical and Applied Limnology, Dublin, Ireland, 9-14 August 1998.

Tank, J.L., P.J. Mulholland, W.B. Bowden, W. McDowell, J. Merriam, B.J Peterson, J.L. Meyer, J.R. Webster, and D. Sanzone.  Assessing storm effects on nitrogen cycling in streams using ¹⁵N as a tracer.  American Society of Limnology and Oceanography meeting, Santa Fe, New Mexico, 1-5 February 1999.

Mulholland, P.J., J.L.Tank, D.M.  Sanzone, W.M. Wollheim,  B.J Peterson, J.L. Meyer, and J.R. Webster.  Nitrogen cycling in a stream ecosystem determined by a tracer level nitrogen-15 addition experiment.  American Society of Limnology and Oceanography meeting, Santa Fe, New Mexico, 1-5 February 1999.

Dodds, W. K, J. Tank, K. Lohman, and V. Smith.  Relative importance of N and P limitation of stream periphyton. American Society of Limnology and Oceanography meeting, Santa Fe, New Mexico, 1-5 February 1999.

Evans-White, M.A. and W.K. Dodds.  Crayfish production and growth in a tallgrass prairie stream. Great Plains Limnology Conference, Columbia, Missouri, 1999.

Kemp, M. J., E.A. Strauss, and W.K. Dodds.  Patterns of dissolved oxygen concentration and nitrification rates among different substrates in the shallow subsurface of a prairie stream.  American Society of Microbiology, Groundwater Conference, Vail, Colorado, 1999.

López, A, J. and W. K. Dodds.  Nutrient uptake in a prairie stream. North American Benthological Society, meeting, Duluth, Minnesota, 24-28 May 1999.

Welter, J.R., J.D. Schade, and N.B. Grimm. 1999. An ¹⁵N analysis of nitrogen exchange in a desert riparian-stream ecosystem.  North American Benthological Society meeting, Duluth, Minnesota, 24-28 May 1999.

Crenshaw, C.L., H.M. Valett, and J.L. Tank.  Fungal colonization of buried wood, hydrologic exchange and interstitial invertebrates communities of a headwater stream.  North American Benthological Society meeting, Duluth, Minnesota, 24-28 May 1999.  Bulletin of the North American Benthological Society 16:123.

Evans-White, M.A., W.K. Dodds, M.J. Kemp, L.A. Gray, A. Lopez, J.L. Tank, and M.R. Whiles.  Patterns of nitrogen cycling in a prairie stream food web.  North American Benthological Society meeting, Duluth, Minnesota, 24-28 May 1999.  Bulletin of the North American Benthological Society 16:189.

Ashkenas, L.R., S.L. Johnson, S.V. Gregory, J.L. Tank, and P.J. Mulholland.  Nitrogen cycling in an ancient forest stream:  The LINX (Lotic Intersite Nitrogen Experiment) study in Mack Creek, Oregon.  North American Benthological Society meeting, Duluth, Minnesota, 24-28 May 1999.  Bulletin of the North American Benthological Society 16:190.

Mulholland, P.J., J.L.Tank, D.M. Sanzone, W.M. Wollheim,  B.J Peterson, J.R. Webster, and J.L. Meyer.  Food web relationships in a forested stream determined by natural abundance and experimental tracer ¹⁵N measurements.  North American Benthological Society meeting, Duluth, Minnesota, 24-28 May 1999.  Bulletin of the North American Benthological Society 16:143.

Peterson, B.J., W.M. Wollheim, P.J. Mulholland, J.R. Webster, J.L. Tank, J.L. Meyer, N.B. Grimm, E. Marti, W.B. Bowden, J. Merriam, H.M. Vallet, A.E. Hershey, K. Rezanka, W.H. McDowell, W.K. Dodds, S.K. Hamilton, S.L. Johnson, L. Ashkenas, and D. D'Angelo.  An intersite comparison of nitrification in streams.  North American Benthological Society meeting, Duluth, Minnesota, 24-28 May 1999.  Bulletin of the North American Benthological Society 16:146-147.

Wollheim, W.M., B.J. Peterson, P.J. Mulholland, J.R. Webster, J.L. Tank, J.L. Meyer, N.B. Grimm, E. Marti, W.B. Bowden, J. Merriam, H.M. Vallet, A.E. Hershey, K. Rezanka, W.H. McDowell, W.K. Dodds, S.K. Hamilton, S.L. Johnson, L. Ashkenas, and D. D'Angelo.  An intersite comparison of nitrogen regeneration in streams.  North American Benthological Society meeting, Duluth, Minnesota, 24-28 May 1999.  Bulletin of the North American Benthological Society 16:147.

Tank, J.L., W.K. Dodds, J.R. Webster, J.L. Schaefer, and P.J. Mulholland.  Response of epilithic and epixylic biofilms to nitrogen and phosphorus additions in 10 streams.  North American Benthological Society meeting, Duluth, Minnesota, 24-28 May 1999.  Bulletin of the North American Benthological Society 16:188.

Raikow, D.F. Nitrogen cycling in newly conditioned stream organic matter.  North American Benthological Society meeting, Duluth, Minnesota, 24-28 May 1999.  Bulletin of the North American Benthological Society 16: 223.

Merriam, J.L., W.H. McDowell, J.L. Tank, C.L. Crenshaw, B.J. Peterson, and J.R. Webster.  Tropical LINX: Nitrogen transformations in a montane tropical rain forest stream.  North American Benthological Society meeting, Duluth, Minnesota, 24-28 May 1999.  Bulletin of the North American Benthological Society 16:189.

Sanzone, D.M. and J.L Tank.  Linking stream and riparian foodweb studies through the use of a ¹⁵N tracer experiment.  Workshop on short and long-term fluctuations  in animal populations at Lake Myvatn:  A model for climatic and human impacts on the ecosystem.  Skútustadir , Iceland, July 1999.

Schade, J.D., J.R. Welter, and N.B. Grimm. 1999.Aquatic-terrestrial linkages: nitrogen transport and retention in a desert riparian ecosystem. Annual Meeting, Ecological Society of America, Spokane, Washington, August 1999.

Sanzone, D.M., J.L. Tank, J.L. Meyer, E. Marti, and N.B. Grimm.  Trophic transfer from stream to riparian foodwebs.  Ecological Society of America meeting, Spokane, Washington, August 1999.

Raikow, D.F. Contribution of Unionids to nitrogen cycling in a stream ecosystem. Freshwater Mollusk Conservation Society Symposium, Tennessee, 1999.

Findlay, S., J. Tank, S. Dye, W.B. Bowden, W. Dodds, J. Edmonds, S.K. Hamilton, S. Johnson,  W.H. McDowell, P. Mulholland, and H.M. Valett.   Bacterial and fungal biomass in headwater stream detritus-based microhabitats.  American Society of Limnology and Oceanography.  2000.

Peterson, B.J., W.M. Wollheim, P.J. Mulholland, J.R. Webster, J.L. Tank, J.L. Meyer, N.B. Grimm, E. Marti, W.B. Bowden, J. Merriam, H.M. Valett, A.E. Hershey, W.H. McDowell, W.K. Dodds, S.K. Hamilton, S.L. Johnson, L. Ashkenas, D. D'Angelo.  Control of DIN export from small watersheds by headwater stream nitrogen processes.  North American Benthological Society meeting, Keystone, Colorado, May 2000.

Wollheim, W.M., B.J. Peterson, P.J. Mulholland, J.R. Webster, J.L. Tank, J.L. Meyer, N.B. Grimm, E. Marti, W.B. Bowden, J. Merriam, H.M. Vallet, A.E. Hershey, W.H. McDowell, W.K. Dodds, S.K. Hamilton, S.L. Johnson, L. Ashkenas, D. D'Angelo.  Estimates of nitrogen loading to streams using in-stream processing rates.  North American Benthological Society meeting, Keystone, Colorado, May 2000.

D’Angelo, D.J., S.C. Christman, B.J. Peterson, P.J. Mulholland, C.S. Fellows, J.L. Tank, S.K. Hamilton, E. Marti, L. Ashkenas, W.B. Bowden, W.R. Dodds, W.B. McDowell, J.L. Meyer, J.R. Webster.  A comparison of nitrogen processing in the P&G experimental stream facility with natural streams in the LINX study using stable isotopes.  North American Benthological Society meeting, Keystone, Colorado, May 2000.

Mulholland, P.J., C.S. Fellows, J.L. Tank, S.K. Hamilton, E. Marti, L. Ashkenas, W.B. Bowden, W.K. Dodds, W.H. McDowell, J.L. Meyer, B.J. Peterson, and J.R. Webster.  Controls on stream metabolism determined by an interbioime comparison study.  North American Benthological Society meeting, Keystone, Colorado, May 2000.

Dent, C.L., J.W. Edmonds, N.B. Grimm, J.C. Henry, E. Marti, and J.R. Welter. Surface-subsurface hydrology of an arid land stream: effects on nutrient dynamics.  North American Benthological Society meeting, Keystone, Colorado, May 2000.

Sanzone, D.M., J.L. Tank, H. Óskarsson and J.L. Meyer.  Linking communities across ecosystem boundaries: the influence of stream subsidies on terrestrial foodwebs in the arctic.  North American Benthological Society meeting, Keystone, Colorado, May 2000.

Hamilton , S.K., J.L. Tank, D.F. Raikow, and W.M. Wollheim. Ammonium uptake by heterotrophic microbes, nitrifiers, and algae in a midwestern U.S. stream. North American Benthological Society meeting, Keystone, Colorado, May 2000.

Raikow, D.F. and S.K. Hamilton. An examination of stream bivalves and their food resources using stable isotopes. North American Benthological Society meeting, Keystone, Colorado, May 2000.

Martin, L.A., P.J. Mulholland, J.R. Webster, and H.M. Valett.  Denitrification in sediments from headwater streams in the southern Appalachian Mountains, USA.  North American Benthological Society meeting, Keystone, Colorado, May 2000.

Dodds, W.K., M.A. Evans-White, N.M. Gerlanc, L. Gray, D.A. Gudder, M.J. Kemp, A.L. López, D. Stagliano, E.A. Strauss, J.L. Tank, M.R. Whiles, W.M. Wollheim.  Quantification of the nitrogen cycle in a prairie stream: Konza LINX. North American Benthological Society meeting, Keystone, Colorado, May 2000.

Kemp, M.J. and W.K. Dodds. Comparisons of nitrification and denitrification in pristine prairie and agricuturally influenced streams. North American Benthological Society meeting, Keystone, Colorado, May 2000.

Findlay, S, J. Tank, S. Dye, W.B. Bowden, W. Dodds, J. Edmonds, S.K. Hamilton, S. Johnson, W.H. McDowell, P. Mulholland, P., H.M. Valett, H.M. Bacterial and fungal biomass in headwater stream detritus-based microhabitats.  American Society for Limnology and Oceanography, Copenhagen, Denmark, 5-9 Jun 2000.

Leonard, N.E.  The conservations implications of diet in the tailed from (Ascaphus truei Stejneger).  American Society of Ichthyologists and Herpetologists meeting, La Paz, Mexico, 20 Jun 2000.

Sanzone, D.M., J.L. Meyer, and J.L. Tank.  Nitrogen transfer from stream to riparian foodwebs:  results from eight 15N tracer experiments.  Ecological Society of America meeting, Snowbird, Utah , August 2000.

Johnson, S.L., L.R. Ashkenas, and S.V. Gregory.  Terrestrial-aquatic linkages in a Pacific Northwest old growth forest:  Results from an aquatic N-15 tracer study.  Ecological Society of America meeting, Snowbird, Utah, August 2000.

Schade, J.D., J.R. Welter, and N.B. Grimm. Movement of organic matter and nutrients from stream to riparian zone: a reversal of fortune.  Ecological Society of America meeting, Snowbird, Utah, August 2000.

Mulholland, P.J., W.B. Bowden, W.K. Dodds, C.S. Fellows, S.K. Hamilton, S.L. Johnson, E. Marti, W.H. McDowell, B.J. Peterson, J.L. Tank, H.M. Valett, J.R. Webster, and W.M. Wolheim.  Comparison of tracer and enrichment methods for determining nutrient uptake lengths in streams.  North American Benthological Society meeting, LaCrosse, Wisconsin, June 2001. Bulletin of the North American Benthological Society 18:234.

Dodds, W.K., A.J. Lopez, W.B. Bowden, S. Gregory, N.B. Grimm, S.K. Hamilton, A.E. Hershey,  W.H. McDowell, J.L Meyer, D.D. Morrall, P.J. Mulholland, B.J. Peterson, J.L. Tank, H.M. Valett, J.R. Webster, and W.M. Wolheim.  Nutrient uptake as a function of concentration in streams.  North American Benthological Society meeting, LaCrosse, Wisconsin, June 2001. Bulletin of the North American Benthological Society 18:235.

Sanzone, D.M., J.L. Merriam, W.H. McDowell, J.L. Meyer, J.L Tank, and S.L. Johnson.  Stream subsidies to tropical montane forest communities:  evidence from natural-abundance stable isotopes and a ¹⁵N enrichment experiment.  North American Benthological Society meeting, LaCrosse, Wisconsin, June 2001. Bulletin of the North American Benthological Society 18:153.

Peterson, B.J., L.A. Deegan, J.E. Hughes, R.M. Holmes, and W.M. Wollheim.  A comparison of information gained from natural abundance isotope distributions versus tracer isotope additions. North American Benthological Society meeting, LaCrosse, Wisconsin, June 2001. Bulletin of the North American Benthological Society 18:153.

Hamilton, S.K., J.L. Tank, D.F. Raikow, E.R. Siler, N. Dorn, J. Halliday, and N. Leonard.  Food webs in a Midwestern U.S. stream;  insights from a ¹⁵N tracer experiment.  North American Benthological Society meeting, LaCrosse, Wisconsin, June 2001. Bulletin of the North American Benthological Society 18:184.

Tank, J.L., and D.M. Sanzone.  Nitrogen cycling patterns and food web relationships in an arctic stream.  North American Benthological Society meeting, LaCrosse, Wisconsin, June 2001. Bulletin of the North American Benthological Society 18:235.

Sanzone, D.M., J.L. Meyer, J.L. Tank, E.P. Gardiner, B.J. Peterson, P.J. Mulholland, S.V. Gregory, N.B. Grimm, W.H. McDowell, W.B. Bowden, and W.K. Dodds.  Stable isotopes provide evidence that stream subsidies influence the spatial distribution of terrestrial predators in eight biomes.  North American Benthological Society meeting.  Pittsburgh, Pennsylvania, May 2002.

Peterson, B.J., P.J. Mulholland, J.R. Webster, and J.L. Meyer.  LINX:  a collaborative study of nitrogen cycling in streams.  American Society of Limnology and Oceanography meeting, Victoria , British Columbia, 10-14 June 2002.

Other Presentations:

Bowden, W.B.  The Lotic Intersite Nitrogen Experiment (LINX): nitrogen cycling in a northern hardwood forest stream (USA).  Department of Zoology.  University of Otago, Dunedin.  21 August 1998.

Mulholland, P.J.  Nitrogen cycling in stream ecosystems determined by tracer-level 15N additions: Results from Walker Branch and from the Lotic Intersite Nitrogen Experiment (LINX).  Biogeochemistry Seminar Series, Department of Ecology and Systematics, Cornell University, Ithaca, NY, September 1999.

Dodds, W.K.  Nitrogen cycling at Konza Prairie.  Institute of Ecosystem Studies, Millbrook, NY. October 1999.

Webster, J.R.  Biomes of North America from the perspective a nitrogen atom in a stream.  Flathead Lake Biological Station, July 2001.

Webster, J.R.  Biomes of North America from the perspective a nitrogen atom caught in a nutrient spiral.  Department of Limnology, EAWAG/ETH, Duebendorf, Switzerland.  October 2001.

Webster, J.R.  Biomes of North America from the perspective a nitrogen atom caught in a stream spiral.  Institute of Ecology, University of Georgia, Athens, Georgia.  January 2002.

Webster, J.R.  Biomes of North America from the perspective a nitrogen atom caught in a stream spiral.  Department of Biology, Virginia Tech, Blacksburg, Virginia.  February 2002.

McDowell, W.H.  2003.  In-stream processing of N: implications for regional N losses.  American Geophysical Union fall meeting, San Francisco, December 2003.