Search Results - "McDowell, W.H"

Genesis, goals and achievements of Long-Term Ecological Research at the global scale: A critical review of ILTER and future directions by Mirtl, M., T. Borer, E., Djukic, I., Forsius, M., Haubold, H., Hugo, W., Jourdan, J., Lindenmayer, D., McDowell, W.H., Muraoka, H., Orenstein, D.E., Pauw, J.C., Peterseil, J., Shibata, H., Wohner, C., Yu, X., Haase, P.

“…•ILTER supports collaborative ecosystem, critical zone and socio-ecological research.•ILTER balances requirements of a research community and external user…”
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A comparison of methods to determine the biodegradable dissolved organic carbon from different terrestrial sources by McDowell, W.H., Zsolnay, A., Aitkenhead-Peterson, J.A., Gregorich, E.G., Jones, D.L., Jödemann, D., Kalbitz, K., Marschner, B., Schwesig, D.

“…The importance of dissolved organic matter (DOM) in many soil processes is determined in large part by its availability to microbial uptake and decomposition,…”
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Disturbance and long-term patterns of rainfall and throughfall nutrient fluxes in a subtropical wet forest in Puerto Rico by Heartsill-Scalley, T., Scatena, F.N., Estrada, C., McDowell, W.H., Lugo, A.E.

“…Nutrient fluxes in rainfall and throughfall were measured weekly in a mature subtropical wet forest in NE Puerto Rico over a 15-year period that included the…”
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A Cross-System Comparison of Bacterial and Fungal Biomass in Detritus Pools of Headwater Streams by Findlay, S., J. Tank, S. Dye, Valett, H. M., Mulholland, P. J., McDowell, W. H., Johnson, S. L., Hamilton, S. K., J. Edmonds, Dodds, W. K., Bowden, W. B.

“…The absolute amount of microbial biomass and relative contribution of fungi and bacteria are expected to vary among types of organic matter (OM) within a…”
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Origin, composition, and flux of dissolved organic carbon in the Hubbard Brook Valley by McDowell, William H., Likens, Gene E.

“…The concentration, composition, and flux of dissolved organic carbon (DOC) were measured in the Hubbard Brook Valley, New Hampshire. Data on precipitation,…”
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Northeastern mountain ponds as sentinels of change: Current and emerging research and monitoring in the context of shifting chemistry and climate interactions by Nelson, S.J., Hovel, R.A., Daly, J., Gavin, A., Dykema, S., McDowell, W.H.

“…Mountain ponds in the northeastern US have undergone acidification and subsequent recovery due to changes in atmospheric deposition, and also reflect physical…”
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Mass mortality of a dominant invasive species in response to an extreme climate event: Implications for ecosystem function by McDowell, W.G., McDowell, W.H., Byers, J.E.

“…Impacts of invasive species on ecosystems are often context dependent, making empirical assessments difficult when climatic baselines are shifting and extreme…”
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African dust deposition in Puerto Rico: Analysis of a 20-year rainfall chemistry record and comparison with models by McClintock, M.A., McDowell, W.H., González, G., Schulz, Michael, Pett-Ridge, J.C.

“…Dust deposition represents an important flux of rock-derived nutrients such as phosphorus to ecosystems on highly weathered soils. Direct measurements of…”
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Wildfires lead to decreased carbon and increased nitrogen concentrations in upland arctic streams by Rodríguez-Cardona, B. M., Coble, A. A., Wymore, A. S., Kolosov, R., Podgorski, D. C., Zito, P., Spencer, R. G. M., Prokushkin, A. S., McDowell, W. H.

“…The Central Siberian Plateau is undergoing rapid climate change that has resulted in increased frequency of forest fires and subsequent alteration of watershed…”
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Effects of nitrogen additions on above- and belowground carbon dynamics in two tropical forests by Cusack, Daniela F., Silver, Whendee L., Torn, Margaret S., McDowell, William H.

“…Anthropogenic nitrogen (N) deposition is increasing rapidly in tropical regions, adding N to ecosystems that often have high background N availability…”
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Ecosystem response to 15 years of chronic nitrogen additions at the Harvard Forest LTER, Massachusetts, USA by Magill, Alison H, Aber, John D, Currie, William S, Nadelhoffer, Knute J, Martin, Mary E, McDowell, William H, Melillo, Jerry M, Steudler, Paul

“…Humans have altered the global and regional cycles of nitrogen more than any other element. Alteration of N cycling patterns and processes in forests is one…”
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Twelve testable hypotheses on the geobiology of weathering by BRANTLEY, S.L, MEGONIGAL, J.P, SCATENA, F.N, BALOGH-BRUNSTAD, Z, BARNES, R.T, BRUNS, M.A, VAN CAPPELLEN, P, DONTSOVA, K, HARTNETT, H.E, HARTSHORN, A.S, HEIMSATH, A, HERNDON, E, JIN, L, KELLER, C.K, LEAKE, J.R, MCDOWELL, W.H, MEINZER, F.C, MOZDZER, T.J, PETSCH, S, PETT-RIDGE, J, PREGITZER, K.S, RAYMOND, P.A, RIEBE, C.S, SHUMAKER, K, SUTTON-GRIER, A, WALTER, R, YOO, K

“…Critical Zone (CZ) research investigates the chemical, physical, and biological processes that modulate the Earth's surface. Here, we advance 12 hypotheses…”
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Trends in stream nitrogen concentrations for forested reference catchments across the USA by Argerich, A, Johnson, S L, Sebestyen, S D, Rhoades, C C, Greathouse, E, Knoepp, J D, Adams, M B, Likens, G E, Campbell, J L, McDowell, W H, Scatena, F N, Ice, G G

“…To examine whether stream nitrogen concentrations in forested reference catchments have changed over time and if patterns were consistent across the USA, we…”
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Nitrogen and phosphorus budgets for a tropical watershed impacted by agricultural land use: Guayas, Ecuador by Borbor-Cordova, M.J, Boyer, E.W, McDowell, W.H, Hall, C.A

“…Large-scale changes in land use are occurring in many tropical regions, with significant impacts on nitrogen and phosphorus biogeochemistry. In this study we…”
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Can't See the Forest for the Stream? In-stream Processing and Terrestrial Nitrogen Exports by BERNHARDT, EMILY S, LIKENS, GENE E, HALL, ROBERT O, BUSO, DON C, FISHER, STUART G, BURTON, THOMAS M, MEYER, JUDY L, MCDOWELL, WILLIAM H, MAYER, MARILYN S, BOWDEN, W. BRECK, FINDLAY, STUART E. G, MACNEALE, KATE H, STELZER, ROBERT S, LOWE, WINSOR H

“…There has been a long-term decline in nitrate (NO3−) concentration and export from several long-term monitoring watersheds in New England that cannot be…”
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Controls on major solutes within the drainage network of a rapidly weathering tropical watershed by Bhatt, M.P, McDowell, W.H

“…Surface water chemistry in the main stem and source points of the Rio Icacos basin (Luquillo Experimental Forest, Puerto Rico) was studied to investigate the…”
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globalization of N deposition: ecosystem consequences in tropical environments by Matson, P.A, McDowell, W.H, Townsend, A.R, Vitousek, P.M

“…Human activities have more than doubled the inputs of nitrogen (N) into terrestrial systems globally. The sources and distribution of anthropogenic N,…”
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Effects of chronic nitrogen amendment on dissolved organic matter and inorganic nitrogen in soil solution by McDowell, William H, Magill, Alison H, Aitkenhead-Peterson, Jacqueline A, Aber, John D, Merriam, Jeffrey L, Kaushal, Sujay S

“…Increased atmospheric deposition of N to forests is an issue of global concern, with largely undocumented long-term effects on soil solution chemistry. In…”
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Source- and substrate-specific export of dissolved organic matter from permafrost-dominated forested watershed in central Siberia by Prokushkin, A.S, Gleixner, G, McDowell, W.H, Ruehlow, S, Schulze, E.D

“…Terrestrial and aquatic dissolved organic matter (DOM) was characterized to trace the likely processes of DOM formation and stream export in a…”
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Biodegradable dissolved organic carbon in forest soil solution and effects of chronic nitrogen deposition by Yano, Y, McDowell, W.H, Aber, J.D

“…Using a flow-through bioreactor, biodegradable dissolved organic carbon (BDOC) in forest floor solution was determined for a red pine ( Pinus resinosa)…”
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