Positions

Publications

Academic Article

Year Title
2018 Nitrogen removal rates in a frigid high-altitude river estimated by measuring dissolved N2 and N2O.Science of the Total Environment.  645:318-328. 2018
2018 Give and Take: A Watershed Acid Rain Mitigation Experiment Increases Baseflow Nitrogen Retention but Increases Stormflow Nitrogen Export.Environmental Science & Technology.  52:13155-13165. 2018
2018 Ideas and perspectives: Strengthening the biogeosciences in environmental research networksBiogeosciences.  15:4815-4832. 2018
2018 Acidification and Climate Linkages to Increased Dissolved Organic Carbon in High-Elevation LakesWater Resources Research.  54:5376-5393. 2018
2018 Early stage litter decomposition across biomesScience of the Total Environment.  628-629:1369-1394. 2018
2018 Continental-scale decrease in net primary productivity in streams due to climate warmingNature Geoscience.  11:415-+. 2018
2018 Genesis, goals and achievements of Long-Term Ecological Research at the global scale: A critical review of ILTER and future directions.Science of the Total Environment.  626:1439-1462. 2018
2018 Permafrost Regime Affects the Nutritional Status and Productivity of Larches in Central SiberiaForests.  9:314-314. 2018
2018 Using In-Situ Optical Sensors to Understand the Biogeochemistry of Dissolved Organic Matter Across a Stream NetworkWater Resources Research.  54:2949-2958. 2018
2018 An Evaluation of Nitrate, fDOM, and Turbidity Sensors in New Hampshire StreamsWater Resources Research.  54:2466-2479. 2018
2018 The metabolic regimes of flowing watersLimnology and Oceanography.  63:S99-S118. 2018
2018 Effects of plant species on stream bacterial communities via leachate from leaf litterHydrobiologia Journal of Aquatic Ecosystem Stress and Recovery.  807:131-144. 2018
2018 Partitioning assimilatory nitrogen uptake in streams: an analysis of stable isotope tracer additions across continentsEcological Monographs.  88:120-138. 2018
2018 The next generation of site-based long-term ecological monitoring: Linking essential biodiversity variables and ecosystem integrity.Science of the Total Environment.  613-614:1376-1384. 2018
2017 Designing a network of critical zone observatories to explore the living skin of the terrestrial EarthEarth Surface Dynamics.  5:841-860. 2017
2017 Connecting tropical river DOM and POM to the landscape with ligninGeochimica et Cosmochimica Acta.  219:143-159. 2017
2017 Deconstructing the Effects of Flow on DOC, Nitrate, and Major Ion Interactions Using a High-Frequency Aquatic Sensor NetworkWater Resources Research.  53:10655-10673. 2017
2017 Drivers of nitrogen transfer in stream food webs across continents.Ecology.  98:3044-3055. 2017
2017 LAGOS-NE: a multi-scaled geospatial and temporal database of lake ecological context and water quality for thousands of US lakes.GigaScience.  6:1-22. 2017
2017 Nitrification increases nitrogen export from a tropical river networkFreshwater Science.  36:698-712. 2017
2017 Concentration-Discharge Relations in the Critical Zone: Implications for Resolving Critical Zone Structure, Function, and EvolutionWater Resources Research.  53:8654-8659. 2017
2017 A case study characterizing animal fecal sources in surface water using a mitochondrial DNA marker.Environmental Monitoring and Assessment.  189:406. 2017
2017 Critical zone structure controls concentration-discharge relationships and solute generation in forested tropical montane watershedsWater Resources Research.  53:6279-6295. 2017
2017 Nitrate decline unlikely to have triggered release of dissolved organic carbon and phosphate to streams.Global Change Biology.  23:2535-2536. 2017
2017 Tropical river suspended sediment and solute dynamics in storms during an extreme droughtWater Resources Research.  53:3695-3712. 2017
2017 A longer vernal window: the role of winter coldness and snowpack in driving spring transitions and lags.Global Change Biology.  23:1610-1625. 2017
2017 SIPCO2: A simple, inexpensive surface water pCO(2) sensorLimnology and Oceanography: Methods.  15:291-301. 2017
2017 Recovery from acidification alters concentrations and fluxes of solutes from Czech catchmentsBiogeochemistry.  132:251-272. 2017
2017 Mass mortality of a dominant invasive species in response to an extreme climate event: Implications for ecosystem functionLimnology and Oceanography.  62:177-188. 2017
2016 Greenhouse gas flux from headwater streams in New Hampshire, USA: Patterns and driversLimnology and Oceanography.  61:S165-S174. 2016
2016 Understanding Dissolved Organic Matter Biogeochemistry Through In Situ Nutrient Manipulations in Stream Ecosystems.Journal of Visualized Experiments2016
2016 Variation of organic matter quantity and quality in streams at Critical Zone Observatory watershedsWater Resources Research.  52:8202-8216. 2016
2016 Dissolved organic carbon uptake in streams: A review and assessment of reach-scale measurementsJOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES.  121:2019-2029. 2016
2016 Nitrate uptake across biomes and the influence of elemental stoichiometry: A new look at LINX IIGlobal Biogeochemical Cycles.  30:1183-1191. 2016
2016 Two roles for ecological surrogacy: Indicator surrogates and management surrogatesEcological Indicators.  63:121-125. 2016
2016 Impact of Long-Range Transported African Dust on Cloud Water Chemistry at a Tropical Montane Cloud Forest in Northeastern Puerto RicoAerosol and Air Quality Research.  16:653-664. 2016
2016 Limited uptake of nutrient input from sewage effluent in a tropical landscapeFreshwater Science.  35:12-24. 2016
2016 Nitrogen additions mobilize soil base cations in two tropical forestsBiogeochemistry.  128:67-88. 2016
2016 Extreme weather years drive episodic changes in lake chemistry: implications for recovery from sulfate deposition and long-term trends in dissolved organic carbonBiogeochemistry.  127:353-365. 2016
2016 Baseflow physical characteristics differ at multiple spatial scales in stream networks across diverse biomesLandscape Ecology.  31:119-136. 2016
2016 DOC:NO3- ratios and NO3- uptake in forested headwater streamsJOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES.  121:205-217. 2016
2015 A new framework for selecting environmental surrogates.Science of the Total Environment.  538:1029-1038. 2015
2015 Nutrient uptake along a fire gradient in boreal streams of Central SiberiaFreshwater Science.  34:1443-1456. 2015
2015 Reducing bias and quantifying uncertainty in watershed flux estimates: the R package loadflexEcosphere.  6:art269-art269. 2015
2015 Direct response of dissolved organic nitrogen to nitrate availability in headwater streamsBiogeochemistry.  126:1-10. 2015
2015 Leaf-litter leachate is distinct in optical properties and bioavailability to stream heterotrophsFreshwater Science.  34:857-866. 2015
2015 Remote sensing of foliar nitrogen in cultivated grasslands of human dominated landscapesRemote Sensing of Environment.  167:88-97. 2015
2015 Long-term trends of changes in pine and oak foliar nitrogen metabolism in response to chronic nitrogen amendments at Harvard Forest, MA.Tree Physiology.  35:894-909. 2015
2015 Urban Evolution: The Role of WaterWater (Switzerland).  7:4063-4087. 2015
2015 Effects of headwater wetlands on dissolved nitrogen and dissolved organic carbon concentrations in a suburban New Hampshire watershedFreshwater Science.  34:456-471. 2015
2015 Consequence of altered nitrogen cycles in the coupled human and ecological system under changing climate: The need for long-term and site-based research.Ambio.  44:178-193. 2015
2015 Interbasin flow of geothermally modified ground water stabilizes stream exports of biologically important solutes against variation in precipitationFreshwater Science.  34:276-286. 2015
2015 NEON and STREON: opportunities and challenges for the aquatic sciencesFreshwater Science.  34:386-391. 2015
2015 Qualitative differences in headwater stream dissolved organic matter and riparian water-extractable soil organic matter under four different vegetation types along an altitudinal gradient in the Wuyi Mountains of ChinaApplied Geochemistry.  52:67-75. 2015
2014 Linking soils and streams: Response of soil solution chemistry to simulated hurricane disturbance mirrors stream chemistry following a severe hurricaneForest Ecology and Management.  332:56-63. 2014
2014 Chronic nitrogen additions suppress decomposition and sequester soil carbon in temperate forestsBiogeochemistry.  121:305-316. 2014
2014 Effects of sewage effluents on water quality in tropical streams.Journal of Environmental Quality.  43:2053-2063. 2014
2014 Ecosystem metabolism and nutrient uptake in an urban, piped headwater streamBiogeochemistry.  121:167-187. 2014
2014 Incorporating urban infrastructure into biogeochemical assessment of urban tropical streams in Puerto RicoBiogeochemistry.  121:271-286. 2014
2014 Tracking evolution of urban biogeochemical cycles: past, present, and futureBiogeochemistry.  121:1-21. 2014
2014 You are not always what we think you eat: selective assimilation across multiple whole-stream isotopic tracer studiesEcology.  95:2757-2767. 2014
2014 Dissolved Organic Matter: Linking Soils and Aquatic SystemsVadose Zone Journal.  13:0-0. 2014
2014 Decadal trends reveal recent acceleration in the rate of recovery from acidification in the northeastern U.S.Environmental Science & Technology.  48:4681-4689. 2014
2014 Climate controls the distribution of a widespread invasive species: implications for future range expansionFreshwater Biology.  59:847-857. 2014
2014 Improving automated phosphorus measurements in freshwater: an analytical approach to eliminating silica interferenceLimnology and Oceanography: Methods.  12:223-231. 2014
2014 Macrosystems ecology: understanding ecological patterns and processes at continental scalesFrontiers in Ecology and the Environment.  12:5-14. 2014
2014 Chemistry of the heavily urbanized Bagmati River system in Kathmandu Valley, Nepal: export of organic matter, nutrients, major ions, silica, and metalsEnvironmental Earth Sciences.  71:911-922. 2014
2014 Novel ecosystems in the Anthropocene: a revision of the novel ecosystem concept for pragmatic applicationsEcology and Society Conservation Ecology.  19. 2014
2014 You are not always what we think you eat: Selective assimilation across multiple whole-stream isotopic tracer studiesEcology.  95:2715-2722. 2014
2013 Interactions between lithology and biology drive the long-term response of stream chemistry to major hurricanes in a tropical landscapeBiogeochemistry.  116:175-186. 2013
2013 Permafrost and fire as regulators of stream chemistry in basins of the Central Siberian PlateauBiogeochemistry.  116:55-68. 2013
2013 Limited effects of suburbanization on the genetic structure of an abundant vernal pool-breeding amphibianConservation Genetics.  14:1083-1097. 2013
2013 Quantifying the production of dissolved organic nitrogen in headwater streams using N-15 tracer additionsLimnology and Oceanography.  58:1271-1285. 2013
2013 Persistent effects of acidification on stream ecosystem structure and functionFreshwater Science.  32:586-596. 2013
2013 When Wet Gets Wetter: Decoupling of Moisture, Redox Biogeochemistry, and Greenhouse Gas Fluxes in a Humid Tropical Forest SoilEcosystems.  16:576-589. 2013
2013 A Comparison of Wet Deposition Collectors at a Coastal Rural SiteWater, Air, and Soil Pollution Water, Air, and Soil Pollution: Focus.  224. 2013
2013 Chemical constituents in clouds and rainwater in the Puerto Rican rainforest: Potential sources and seasonal driversAtmospheric Environment.  68:208-220. 2013
2013 Climate and pH Predict the Potential Range of the Invasive Apple Snail (Pomacea insularum) in the Southeastern United StatesPLoS ONE.  8:e56812-e56812. 2013
2013 Dissolved organic carbon in headwater streams and riparian soil organic carbon along an altitudinal gradient in the Wuyi Mountains, China.PLoS ONE.  8:e78973. 2013
2013 Trends in stream nitrogen concentrations for forested reference catchments across the USAEnvironmental Research Letters.  8:014039-014039. 2013
2012 Effects of suburbanization on foodweb stoichiometry of detritus-based streamsFreshwater Science.  31:1202-1213. 2012
2012 Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil.Anais da Academia Brasileira de Ciencias.  84:919-930. 2012
2012 Surprises and Insights from Long-Term Aquatic Data Sets and Experiments (vol 62, pg 709, 2012)BioScience.  62:854-854. 2012
2012 Surprises and Insights from Long-Term Aquatic Data Sets and ExperimentsBioScience.  62:709-721. 2012
2012 Global abundance and size distribution of streams and riversInland Waters.  2:229-236. 2012
2012 The response of heterotrophic activity and carbon cycling to nitrogen additions and warming in two tropical soils (vol 16, pg 2555, 2010)Global Change Biology.  18:400-400. 2012
2011 Export of dissolved carbon from watersheds of the Central Siberian PlateauDoklady Earth Sciences.  441:1568-1571. 2011
2011 An integrated conceptual framework for long-term social-ecological researchFrontiers in Ecology and the Environment.  9:351-357. 2011
2011 Microbial immobilization and mineralization of dissolved organic nitrogen from forest floorsSoil Biology and Biochemistry.  43:1742-1745. 2011
2011 Long-term patterns and short-term dynamics of stream solutes and suspended sediment in a rapidly weathering tropical watershedWater Resources Research.  47. 2011
2011 Cross-stream comparison of substrate-specific denitrification potentialBiogeochemistry.  104:381-392. 2011
2011 Effects of nitrogen additions on above- and belowground carbon dynamics in two tropical forestsBiogeochemistry.  104:203-225. 2011
2011 Thinking outside the channel: modeling nitrogen cycling in networked river ecosystemsFrontiers in Ecology and the Environment.  9:229-238. 2011
2011 Twelve testable hypotheses on the geobiology of weathering.Geobiology.  9:140-165. 2011
2011 Nitrous oxide emission from denitrification in stream and river networks.Proceedings of the National Academy of Sciences of the United States of America.  108:214-219. 2011
2011 Sources and the flux pattern of dissolved carbon in rivers of the Yenisey basin draining the Central Siberian PlateauEnvironmental Research Letters.  6:045212-045212. 2011
2010 Denitrification and total nitrate uptake in streams of a tropical landscape.Ecological Appplications.  20:2104-2115. 2010
2010 Spectroscopic characterization of hot-water extractable organic matter from soils under four different vegetation types along an elevation gradient in the Wuyi MountainsGeoderma.  159:139-146. 2010
2010 Biotic and abiotic controls on the ecosystem significance of consumer excretion in two contrasting tropical streamsFreshwater Biology.  55:2047-2061. 2010
2010 Inter-regional comparison of land-use effects on stream metabolismFreshwater Biology.  55:1874-1890. 2010
2010 The response of heterotrophic activity and carbon cycling to nitrogen additions and warming in two tropical soilsGlobal Change Biology.  16:2555-2572. 2010
2010 Total carbon analysis may overestimate organic carbon content of fresh waters in the presence of high dissolved inorganic carbonLimnology and Oceanography: Methods.  8:196-201. 2010
2010 Stream geochemistry, chemical weathering and CO2 consumption potential of andesitic terrains, Dominica, Lesser AntillesGeochimica et Cosmochimica Acta.  74:85-103. 2010
2009 Biological Nitrogen Fixation in Two Tropical Forests: Ecosystem-Level Patterns and Effects of Nitrogen FertilizationEcosystems.  12:1299-1315. 2009
2009 Salinization of urbanizing New Hampshire streams and groundwater: effects of road salt and hydrologic variabilityJournal of the North American Benthological Society.  28:929-940. 2009
2009 The biogeochemical influences of NO(3)(-), dissolved O(2), and dissolved organic C on stream NO(3)(-) uptakeJournal of the North American Benthological Society.  28:894-907. 2009
2009 Increased dissolved organic carbon (DOC) in Central European streams is driven by reductions in ionic strength rather than climate change or decreasing acidity.Environmental Science & Technology.  43:4320-4326. 2009
2009 Nitrate removal in stream ecosystems measured by N-15 addition experiments: DenitrificationLimnology and Oceanography.  54:666-680. 2009
2009 Nitrate removal in stream ecosystems measured by N-15 addition experiments: Total uptakeLimnology and Oceanography.  54:653-665. 2009
2009 Predator-prey interactions in river networks: comparing shrimp spatial refugia in two drainage basinsFreshwater Biology.  54:450-465. 2009
2008 Spatial and temporal variations in DOM composition in ecosystems: The importance of long-term monitoring of optical propertiesJournal of Geophysical Research.  113. 2008
2008 Chapter 11 Distribution and role of mat-forming saprobic basidiomycetes in a tropical forestBritish Mycological Society Symposia Series.  28:197-209. 2008
2008 Spectral analysis of coniferous foliage and possible links to soil chemistry: are spectral chlorophyll indices related to forest floor dissolved organic C and N?Science of the Total Environment.  404:424-432. 2008
2008 Twenty years apart: Comparisons of DOM uptake during leaf leachate releases to Hubbard Brook Valley streams in 1979 versus 2000Journal of Geophysical Research.  113. 2008
2008 Seasonal observations of surface waters in two Gulf of Maine estuary-plume systems: Relationships between watershed attributes, optical measurements and surface pCO(2)Estuarine, Coastal and Shelf Science.  77:245-252. 2008
2008 Long-Term Trends in Stream Nitrate Concentrations and Losses Across Watersheds Undergoing Recovery from Acidification in the Czech RepublicEcosystems.  11:410-425. 2008
2008 Stream denitrification across biomes and its response to anthropogenic nitrate loading.Nature Nature: New biology.  452:202-205. 2008
2008 Groundwater-surface water interactions, nutrient fluxes and ecological response in river corridors: Translating science into effective environmental managementHydrological Processes.  22:151-157. 2008
2007 Controls on major solutes within the drainage network of a rapidly weathering tropical watershedWater Resources Research.  43. 2007
2007 Source- and substrate-specific export of dissolved organic matter from permafrost-dominated forested watershed in central SiberiaGlobal Biogeochemical Cycles.  21:n/a-n/a. 2007
2007 Evolution of chemistry along the Bagmati drainage network in Kathmandu valleyWater, Air, and Soil Pollution Water, Air, and Soil Pollution: Focus.  185:165-176. 2007
2007 Spatial and temporal variation of dissolved organic carbon export from gauged and ungauged watersheds of Dee Valley, Scotland: Effect of land cover and C : NWater Resources Research.  43. 2007
2007 Modelling DOC export from watersheds in Scotland using neural networksComputers and Geosciences.  33:423-436. 2007
2007 Disturbance and long-term patterns of rainfall and throughfall nutrient fluxes in a subtropical wet forest in Puerto RicoJournal of Hydrology.  333:472-485. 2007
2007 Plumbing the Global Carbon Cycle: Integrating Inland Waters into the Terrestrial Carbon BudgetEcosystems.  10:172-185. 2007
2006 Do small-scale exclosure/enclosure experiments predict the effects of large-scale extirpation of freshwater migratory fauna?Oecologia.  149:709-717. 2006
2006 The global abundance and size distribution of lakes, ponds, and impoundmentsLimnology and Oceanography.  51:2388-2397. 2006
2006 Does Anthropogenic Nitrogen Enrichment Increase Organic Nitrogen Concentrations in Runoff from Forested and Human-dominated Watersheds?Ecosystems.  9:852-864. 2006
2006 A comparison of methods to determine the biodegradable dissolved organic carbon from different terrestrial sourcesSoil Biology and Biochemistry.  38:1933-1942. 2006
2006 Linking foliar chemistry to forest floor solid and solution phase organic C and N in Picea abies [L.] karst stands in northern BohemiaPlant and Soil.  283:187-201. 2006
2006 Nitrogen and phosphorus budgets for a tropical watershed impacted by agricultural land use: Guayas, EcuadorBiogeochemistry.  79:135-161. 2006
2006 Urban influences on the nitrogen cycle in Puerto RicoBiogeochemistry.  79:109-133. 2006
2006 Indirect upstream effects of dams: consequences of migratory consumer extirpation in Puerto Rico.Ecological Appplications.  16:339-352. 2006
2005 Climatic factors influencing fluxes of dissolved organic carbon from the forest floor in a continuous-permafrost Siberian watershedCanadian Journal of Forest Research.  35:2130-2140. 2005
2005 Long-term decreases in stream nitrate: Successional causes unlikely; Possible links to DOC?Ecosystems.  8:334-337. 2005
2005 Can't see the forest for the stream? - In-stream processing and terrestrial nitrogen exportsBioScience.  55:219-230. 2005
2004 Carbon and nitrogen stoichiometry and nitrogen cycling rates in streams.Oecologia.  140:458-467. 2004
2004 Ecosystem response to 15 years of chronic nitrogen additions at the Harvard Forest LTER, Massachusetts, USA.Forest Ecology and Management.  196:7-28. 2004
2004 Effects of chronic nitrogen amendment on dissolved organic matter and inorganic nitrogen in soil solution.Forest Ecology and Management.  196:29-41. 2004
2004 Role of wetlands and developed land use on dissolved organic nitrogen concentrations and DON/TDN in northeastern U.S. rivers and streamsLimnology and Oceanography.  49:910-918. 2004
2004 Role of wetlands and developed land use on dissolved organic nitrogen concentrations and DON/TDN in northeastern US rivers and streamsLimnology and Oceanography.  49:910-918. 2004
2004 Moisture and substrate availability constrain soil trace gas fluxes in an eastern Amazonian regrowth forestGlobal Biogeochemical Cycles.  18:GB2009 1-10. 2004
2003 Merging aquatic and terrestrial perspectives of nutrient biogeochemistry.Oecologia.  137:485-501. 2003
2003 Factors affecting ammonium uptake in streams - an inter-biome perspectiveFreshwater Biology.  48:1329-1352. 2003
2003 Biogeochemical hot spots and hot moments at the interface of terrestrial and aquatic ecosystemsEcosystems.  6:301-312. 2003
2003 Dissolved organic matter in soils - future directions and unanswered questionsGeoderma.  113:179-186. 2003
2002 Can uptake length in streams be determined by nutrient addition experiments? Results from an interbiome comparison studyJournal of the North American Benthological Society.  21:544-560. 2002
2002 Patterns of streamwater acidity in Lye Brook Wilderness, Vermont, USA.Environmental Management.  30:234-248. 2002
2002 N uptake as a function of concentration in streamsJournal of the North American Benthological Society.  21:206-220. 2002
2002 The origin, composition and rates of organic nitrogen deposition: a missing piece of the nitrogen cycle?Biogeochemistry.  57:99-136. 2002
2002 A cross-system comparison of bacterial and fungal biomass in detritus pools of headwater streamsMicrobial Ecology.  43:55-66. 2002
2002 A cross-system comparison of bacterial and fungal biomass in detritus pools of headwater streams.Microbial Ecology.  43:55-66. 2002
2002 Characterizing nitrogen dynamics, retention and transport in a tropical rainforest stream using an in situ N-15 additionFreshwater Biology.  47:143-160. 2002
2002 Dissolved organic carbon retention in soils: Comparison of solution and soil measurementsSoil Science Society of America Journal.  66:563-568. 2002
2001 Distribution of nitrous oxide and regulators of its production across a tropical rainforest catena in the Luquillo Experimental Forest, Puerto Rico.Biogeochemistry.  56:265-286. 2001
2001 Hurricanes, people, and riparian zones: controls on nutrient losses from forested Caribbean watersheds.Forest Ecology and Management.  154:443-451. 2001
2001 Inter-biome comparison of factors controlling stream metabolismFreshwater Biology.  46:1503-1517. 2001
2001 Soil microbial biomass and activity in tropical riparian forests.Soil Biology and Biochemistry.  33:1339-1348. 2001
2001 Control of nitrogen export from watersheds by headwater streams.Science The Scientific monthly.  292:86-90. 2001
2001 Freshwater shrimp effects on detrital processing and nutrients in a tropical headwater streamEcology.  82:775-783. 2001
2000 Biodegradable dissolved organic carbon in forest soil solution and effects of chronic nitrogen deposition.Soil Biology and Biochemistry.  32:1743-1751. 2000
2000 Analysis of nitrogen dynamics in the Lye Brook Wilderness area, Vermont, USAWater, Air, and Soil Pollution Water, Air, and Soil Pollution: Focus.  122:63-75. 2000
2000 C and N dynamics in the riparian and hyporheic zones of a tropical stream, Luquillo Mountains, Puerto RicoJournal of the North American Benthological Society.  19:199-214. 2000
2000 Dissolved organic nitrogen budgets for upland, forested ecosystems in New England.Biogeochemistry.  49:123-142. 2000
2000 Effects of hurricane disturbance on stream water concentrations and fluxes in eight tropical forest watersheds of the Luquillo Experimental Forest, Puerto Rico.Journal of Tropical Ecology.  16:189-207. 2000
2000 Effects of nutrient availability and other elevational changes on bromeliad populations and their invertebrate communities in a humid tropical forest in Puerto Rico.Journal of Tropical Ecology.  16:167-188. 2000
2000 Soil C : N ratio as a predictor of annual riverine DOC flux at local and global scalesGlobal Biogeochemical Cycles.  14:127-138. 2000
2000 Foliar free polyamine and inorganic ion content in relation to soil and soil solution chemistry in two fertilized forest stands at the Harvard Forest, MassachusettsPlant and Soil.  222:119-137. 2000
2000 Long-term nitrogen additions and nitrogen saturation in two temperate forestsEcosystems.  3:238-253. 2000
2000 The long-term effects of disturbance on organic and inorganic nitrogen export in the White Mountains, New HampshireEcosystems.  3:433-450. 2000
1999 The effect of permafrost on stream biogeochemistry: a case study of two streams in the Alaskan (U.S.A.) taiga.Biogeochemistry.  47:239-267. 1999
1999 Linking species and ecosystems: Different biotic assemblages cause interstream differences in organic matterEcology.  80:1860-1872. 1999
1999 Short-term disappearance of foliar litter in three species before and after a hurricane.Biotropica.  31:382-393. 1999
1999 A nitrogen budget for late-successional hillslope tobonuco forest, Puerto Rico.Biogeochemistry.  46:85-108. 1999
1999 Nitrogen stable isotopic composition of leaves and soil: tropical versus temperate forests.Biogeochemistry.  46:45-65. 1999
1999 Nitrogen yields from undisturbed watersheds in the AmericasBiogeochemistry.  46:149-162. 1999
1999 The globalization of N deposition: ecosystem consequences in tropical environments.Biogeochemistry.  46:67-83. 1999
1998 Nitrogen saturation in temperate forest ecosystems - Hypotheses revisitedBioScience.  48:921-934. 1998
1998 Effects of chronic nitrogen amendments on production of dissolved organic carbon and nitrogen in forest soilsWater, Air, and Soil Pollution Water, Air, and Soil Pollution: Focus.  105:175-182. 1998
1998 Internal nutrient fluxes in a Puerto Rican rain forest.Journal of Tropical Ecology.  14:521-536. 1998
1998 Quantification of biodegradable dissolved organic carbon in soil solution with flow-through bioreactorsSoil Science Society of America Journal.  62:1556-1564. 1998
1997 Seasonal variation of tropical precipitation chemistry: La Selva, Costa RicaAtmospheric Environment.  31:3903-3910. 1997
1997 Organic matter dynamics in Bear Brook, Hubbard Brook Experimental Forest, New Hampshire, USAJournal of the North American Benthological Society.  16:43-46. 1997
1996 Effects of hurricane disturbance on groundwater chemistry and riparian function in a tropical rain forestBiotropica.  28:577-584. 1996
1996 Effects of hurricane disturbance on groundwater chemistry and riparian function in a tropical rain forestBiotropica.  28:577-584. 1996
1996 Vertical transport of dissolved organic C and N under long-term N amendments in pine and hardwood forests.Biogeochemistry.  35:471-505. 1996
1996 Chemical characteristics of leachate from pulp and paper mill residuals used to reclaim a sandy soilWater, Air, and Soil Pollution Water, Air, and Soil Pollution: Focus.  89:167-187. 1996
1996 A high-temperature catalytic oxidation technique for determining total dissolved nitrogenSoil Science Society of America Journal.  60:1050-1055. 1996
1995 LONG-TERM INFLUENCE OF DEFORESTATION ON TREE SPECIES COMPOSITION AND LITTER DYNAMICS OF A TROPICAL RAIN-FOREST IN PUERTO-RICOForest Ecology and Management.  78:147-157. 1995
1995 EXPORT OF NUTRIENTS AND MAJOR IONS FROM CARIBBEAN CATCHMENTSJournal of the North American Benthological Society.  14:12-20. 1995
1994 The importance of nutrient pulses in tropical forests.Trends in Ecology and Ecolution.  9:384-387. 1994
1994 SOLUTE DEPOSITION FROM CLOUD-WATER TO THE CANOPY OF A PUERTO-RICAN MONTANE FORESTAtmospheric Environment.  28:1773-1780. 1994
1994 EXPORT OF CARBON, NITROGEN, AND MAJOR IONS FROM 3 TROPICAL MONTANE WATERSHEDSLimnology and Oceanography.  39:111-125. 1994
1992 FACTORS LIMITING PRIMARY PRODUCTIVITY IN LAKE-ONTARIO TRIBUTARIES RECEIVING SALMON MIGRATIONSCanadian Journal of Fisheries and Aquatic Sciences.  49:2377-2385. 1992
1992 MIREX - PHOTOMIREX RELATIONSHIPS IN LAKE-ONTARIOJournal of Great Lakes Research.  18:405-414. 1992
1992 Riparian nitrogen dynamics in two geomorphologically distinct tropical rain forest watersheds: nitrous oxide fluxes.Biogeochemistry.  18:77-99. 1992
1992 Riparian nitrogen dynamics in two geomorphologically distinct tropical rain forest watersheds: subsurface solute patterns.Biogeochemistry.  18:53-75. 1992
1991 Summary of ecosystem-level effects of Caribbean hurricanesBiotropica.  23:373-378. 1991
1991 Summary of ecosystem-level effects of Caribbean hurricanes.Biotropica.  23:373-378. 1991
1990 INFLUENCE OF SEA SALT AEROSOLS AND LONG-RANGE TRANSPORT ON PRECIPITATION CHEMISTRY AT EL-VERDE, PUERTO-RICOAtmospheric Environment.  24:2813-2821. 1990
1990 Influence of bedrock geochemistry on the heavy metal content of stream water, marine water, marine sediments and organisms in St. John, USVICaribbean Journal of Science.  25:218-227. 1990
1989 UPSTREAM TRANSPORT OF MIREX BY MIGRATING SALMONIDSCanadian Journal of Fisheries and Aquatic Sciences.  46:1484-1488. 1989
1988 ELEMENTAL DYNAMICS IN STREAMSJournal of the North American Benthological Society.  7:410-432. 1988
1988 CLOUDWATER CHEMISTRY FROM 10 SITES IN NORTH-AMERICAEnvironmental Science & Technology.  22:1018-1026. 1988
1988 ORIGIN, COMPOSITION, AND FLUX OF DISSOLVED ORGANIC-CARBON IN THE HUBBARD BROOK VALLEYEcological Monographs.  58:177-195. 1988
1987 SIMPLIFIED VERSION OF THE AMPOULE-PERSULFATE METHOD FOR DETERMINATION OF DISSOLVED ORGANIC-CARBONCanadian Journal of Fisheries and Aquatic Sciences.  44:214-218. 1987
1985 KINETICS AND MECHANISMS OF DISSOLVED ORGANIC-CARBON RETENTION IN A HEADWATER STREAMBiogeochemistry.  1:329-352. 1985
1985 NITROGEN TRANSFORMATIONS IN A SMALL MOUNTAIN STREAMHydrobiologia Journal of Aquatic Ecosystem Stress and Recovery.  124:129-139. 1985
1984 Sources and molecular weight of 'dissolved' organic carbon in an oligotrophic lake ( Mirrow Lake, New Hampshire).Oikos.  42:1-9. 1984
1984 CORRECTIONSoil Science.  138:91-91. 1984
1984 NEW PERSPECTIVES IN ECOTOXICOLOGYEnvironmental Management.  8:375-442. 1984
1984 PODZOLIZATION - SOIL PROCESSES CONTROL DISSOLVED ORGANIC-CARBON CONCENTRATIONS IN STREAM WATERSoil Science.  137:23-32. 1984
1984 SOURCES AND MOLECULAR-WEIGHT OF DISSOLVED ORGANIC-CARBON IN AN OLIGOTROPHIC LAKEOikos.  42:1-9. 1984
1983 PERSPECTIVES IN RUNNING WATER ECOLOGY - LOCK,MA, WILLIAMS,DDEcology.  64:967-968. 1983
1981 ACID-RAIN, DISSOLVED ALUMINUM AND CHEMICAL-WEATHERING AT THE HUBBARD-BROOK EXPERIMENTAL FOREST, NEW-HAMPSHIREGeochimica et Cosmochimica Acta.  45:1421-1437. 1981
1976 AUTUMNAL PROCESSING OF DISSOLVED ORGANIC-MATTER IN A SMALL WOODLAND STREAM ECOSYSTEMEcology.  57:561-569. 1976

Book

Year Title
1986 The Hudson River ecosystem. 1986

Chapter

Year Title
2011 Impacts of Hurricanes on Forest Hydrology and Biogeochemistry.  643-657. 2011
2008 Distribution and Role of Mat-Forming Saprobic Basidiomycetes in a Tropical ForestBritish Mycological Society Symposia Series. 197-209. 2008

Conference Proceeding

Year Title
1991 NUTRIENT AND MAJOR ELEMENT CHEMISTRY OF CARIBBEAN RAIN-FOREST STREAMSINTERNATIONAL ASSOCIATION OF THEORETICAL AND APPLIED LIMNOLOGY, VOL 24, PT 3. 1720-1723. 1991

Principal Investigator On

  • Northeastern States Research Cooperative Theme 2  awarded by US DA, United States Forest Service 2017 - 2022
  • Northeastern States Research Cooperative Theme 2  awarded by US DA, United States Forest Service 2016 - 2021
  • Defining Stream Biomes to Better Understand and Forecast Stream Ecosystem Change  awarded by National Science Foundation (NSF) 2015 - 2020
  • USDA Forest Service-Northeastern States Research Cooperative  awarded by US DA, United States Forest Service 2015 - 2020
  • Hurricane Effects  awarded by Texas A&M University 2019
  • Luquillo CZO  awarded by National Science Foundation (NSF) 2013 - 2019
  • Effects of Dissolved Organic Carbon on Methylmercury Bioavailability in Stream Ecosystems  awarded by US DOI, US Geological Survey 2016 - 2019
  • NH Water Resources Research Center Administrative  awarded by US DOI, US Geological Survey 2016 - 2019
  • Deciphering the Role of Dissolved Organic Nitrogen (DON) in Stream Nutrient Cycling  awarded by National Science Foundation (NSF) 2016 - 2019
  • Determining the Effectiveness of the Clean Air Act and Amendments on the Recovery of Surface Water  awarded by US DOI, US Geological Survey 2018 - 2019
  • LTER 5B: Understanding Ecosystem Change in Northeastern Puerto Rico  awarded by University of Puerto Rico 2016 - 2019
  • USDA Forest Service-Northeastern States Research Cooperative  awarded by US DA, United States Forest Service 2013 - 2018
  • EPA TIME LTM  awarded by US DOI, US Geological Survey 2014 - 2018
  • USDA Forest Service-Northeastern States Research Cooperative  awarded by US DA, United States Forest Service 2012 - 2017
  • Luquillo LTER 5: Understanding Environmental Change in Northeast Puerto Rico  awarded by University of Puerto Rico 2014 - 2016
  • USDA Forest Service- Northeastern States Research Cooperative  awarded by US DA, United States Forest Service 2011 - 2016
  • USGS NH WRRC Intern-Dartmouth  awarded by US DOI, US Geological Survey 2015 - 2016
  • NH Water Resources Research Center Administrative  awarded by US DOI, US Geological Survey 2011 - 2016
  • A New Paradigm for Understanding How Leaf Litter Quality Affects Stream Ecosystems  awarded by National Science Foundation (NSF) 2011 - 2015
  • USDA Forest Service - Northeastern States Research Cooperative  awarded by US DA, United States Forest Service 2010 - 2015
  • Luquillo Critical Zone  awarded by Univ of Pennsylvania 2009 - 2014
  • NSF IPA Ecosystems Program Officer  awarded by National Science Foundation (NSF) 2013 - 2014
  • EPA TIME LTM  awarded by US DOI, US Geological Survey 2011 - 2014
  • Northeastern States Research Cooperative 2009-2014  awarded by US DA, Department of Agriculture 2009 - 2014
  • Luquillo Critical Zone  awarded by Univ of Pennsylvania 2012 - 2013
  • Ecosystems Services Workshop  awarded by Duke University 2012 - 2013
  • USDA Northeastern State Research Cooperative  awarded by US DA, United States Forest Service 2008 - 2013
  • Luquillo LTER 4: Understanding Change in the Ecosystems of Northeastern Puerto Rico  awarded by University of Puerto Rico 2007 - 2012
  • Siberian Carbon Dynamics  awarded by US Civilian Research & Development Foundation 2010 - 2012
  • OPUS - Synthesis of Twenty-five Years of Research on the Biogeochemistry of a Tropical Rain Forest  awarded by National Science Foundation (NSF) 2008 - 2011
  • Determining the Effectiveness of the Clean Air Act and Amendments for the Recovery of Surface Waters in th Northeastern US  awarded by US DOI, US Geological Survey 2006 - 2011
  • 2006 Water Resources Research Center  awarded by US DOI, US Geological Survey 2006 - 2011
  • Nitrogen assessment for the Lamprey River Watershed  awarded by NH Department of Environmental Services 2009 - 2010
  • Precipitationand Stream Chemistry in an Urban Tropical Basin  awarded by US DA, United States Forest Service 2008 - 2009
  • Watershed Assessment of New Boston Air Force Base  awarded by US DOI, US Geological Survey 2007 - 2009
  • Luquillo LTER 4: Understanding Change in the Ecosystems of Northeastern Puerto Rico  awarded by University of Puerto Rico 2006 - 2007
  • Linking DOC & DON Fluxes to Soil Properties at Watershed  awarded by National Science Foundation (NSF) 2001 - 2007
  • Nitrate Uptake & Retention in Streams  awarded by University of Tennessee 2001 - 2007
  • Connecticut River Airshed Watershed Consoritum  awarded by University of Connecticut 2002 - 2007
  • Connecticut River Airshed-Watershed Consortium  awarded by University of Connecticut 2002 - 2007
  • Luquillo Experimental Forest  awarded by University of Puerto Rico 2005 - 2006
  • Calcium Oxalate Pools in Forest Soils  awarded by US DA, Department of Agriculture 2003 - 2006
  • 2001 Water Resources Research Center Program Support  awarded by US DOI, US Geological Survey 2001 - 2006
  • Luquillo Experimental Forest Project  awarded by University of Puerto Rico 2004 - 2005
  • Luquillo experimental Forest Project  awarded by University of Puerto Rico 2003 - 2004
  • Luquillo Experimental Forest Project  awarded by University of Puerto Rico 2002 - 2003
  • Calcium Oxalate-Missing Link to Response to Disturbances  awarded by US DA, United States Forest Service 2002 - 2003
  • Water Quality and Property Value  awarded by University of Vermont 2002 - 2003
  • Long Term Ecological Research in Puerto Rico  awarded by University of Puerto Rico 1998 - 2002
  • 2002 Water Resources Research Center Program Support  awarded by US DOI, US Geological Survey 2001 - 2002
  • Chemical Analysis of Water Samples From Lysimeters  awarded by University of Florida 2001 - 2002
  • Stream Chemistry in the Luquillo Experiment Forest  awarded by US DA, United States Forest Service 1997 - 2002
  • Manflora  awarded by University of Florida 2000 - 2001
  • Detritus Input & Removal Treatments Intersite  awarded by National Science Foundation (NSF) 1999 - 2001
  • Dissolved Organic Nitrogen Intersite Comparison (DONIC)  awarded by University of Colorado 1999 - 2001
  • Use of Biosolids in Reclaiming Gravel Pits  awarded by NH Department of Environmental Services 1999 - 2001
  • Biosolids Monitoring  awarded by NE Biosolids & Residuals Association 1998 - 2000
  • Consequences of Globalized N Deposition  awarded by US DA, Department of Agriculture 1998 - 2000
  • Linking DOC & DON Fluxes to Soil Properties at Watershed  awarded by National Science Foundation (NSF) 1998 - 2000
  • Total/Biologically Available Dissolved Organic Nitrogen  awarded by US DOC, National Oceanic & Atmospheric Administration (NOAA) 1998 - 1999
  • Puerto Rico Long Term Ecological Research  awarded by University of Puerto Rico 1993 - 1999
  • Nitrogen Cycling in the White Mountain Forest  awarded by US DA, United States Forest Service 1996 - 1997
  • Nitrogen Dynamics in the Luquillo Forest  awarded by US DA, United States Forest Service 1996 - 1997
  • Effects of Acidic Deposition on Lye Brook Ecosystems  awarded by US DA, United States Forest Service 1993 - 1997
  • Alaska Dissolved Organic Carbon Analysis  awarded by University of Alaska 1994 - 1996
  • Carbon Controls on Nitrogen Retention by Forest Ecosystems  awarded by US DA, Department of Agriculture 1992 - 1996
  • Graduate Fellowship - Claire McSwiney  awarded by National Aeronautics and Space Administration (NASA) 1992 - 1996
  • Effects of Residuals  awarded by Miscellaneous Business & Industry 1994 - 1995
  • Riparian Processes in Costa Rica  awarded by Nature Conservancy 1994 - 1995
  • Riparian Zone Research Visits  awarded by Whiting (Marion and Jasper) Foundation 1994 - 1995
  • Carbon Dynamics in Aquatic Ecosystems Workshop  awarded by University of Michigan 1993 - 1994
  • DOC Analysis  awarded by University of Puerto Rico 1992 - 1994
  • Fate of Nitrate in Mature, Forested Ecosystem in White Mtns  awarded by US DA, United States Forest Service 1992 - 1994
  • CATASTROPHIC DISTURBANCE IN A TROPICAL RAIN FOREST  awarded by National Science Foundation (NSF) 1989 - 1993
  • Investigator On

  • PREP Monitoring Collaborative  awarded by Miscellaneous Business & Industry 2016 - 2020
  • Defining Stream Biomes to Better Understand and Forecast Stream Ecosystem Change  awarded by National Science Foundation (NSF) 2015 - 2020
  • FY 2018 PREP Workplan (Year 22)  awarded by Environmental Protection Agency (EPA) 2017 - 2019
  • Piscataqua Region Estuaries Partnership - Year 21 Work Plan (2016)  awarded by Environmental Protection Agency (EPA) 2016 - 2019
  • Interactions Among Climate, Land Use and Ecosystem Services  awarded by National Science Foundation (NSF) 2011 - 2018
  • Piscataqua Region Estuaries Partnership - Year 20 Workplan (2015)  awarded by Environmental Protection Agency (EPA) 2015 - 2017
  • PREP Year 19  awarded by Environmental Protection Agency (EPA) 2014 - 2017
  • SCALER Stream Consumers  awarded by National Science Foundation (NSF) 2011 - 2017
  • Piscataqua Region Estuaries Partnership's  awarded by Environmental Protection Agency (EPA) 2012 - 2016
  • Piscataqua Region Estuaries Partnership Year 15 Workplan to Implement the Management Plan for the Region's Estuaries in 2011  awarded by Environmental Protection Agency (EPA) 2010 - 2016
  • Forging the Link: A Collaborative Approach to Applying Science and Technology to Coastal Problem Solving  awarded by US DOC, National Oceanic & Atmospheric Administration (NOAA) 2009 - 2015
  • Piscataqua Region Estuaries Partnership Year 16 Workplan to Implement the Management Plan for the Region's Estuaries in 2012  awarded by Environmental Protection Agency (EPA) 2011 - 2014
  • US-Mexicao Workshop: Catalyzing International Collaborations to Develop a Platform for Ecohydrological Research  awarded by National Science Foundation (NSF) 2011 - 2013
  • Piscataqua Region Estuaries Partnership Year 14 Work Plan to Implement the Management Plan for the Region's Estuaries in 2010  awarded by Environmental Protection Agency (EPA) 2009 - 2012
  • AIRMAP 07  awarded by US DOC, National Oceanic & Atmospheric Administration (NOAA) 2007 - 2011
  • New Hampshire Estuaries Project Year 13 Work Plan to Implement the Management Plan for NH's Estuaries in 2009  awarded by Environmental Protection Agency (EPA) 2008 - 2011
  • New Hampshire Estuaries Project Year 12 Work Plan to Implement the Management Plan for NH's Estuaries in 2008  awarded by Environmental Protection Agency (EPA) 2007 - 2011
  • 2006 Water Resources Research Center  awarded by US DOI, US Geological Survey 2006 - 2011
  • 2006-08 AIRMAP  awarded by US DOC, National Oceanic & Atmospheric Administration (NOAA) 2006 - 2009
  • 2006-08 Atmospheric Invest Regional Model Predict Mgt Suppt  awarded by US DOC, National Oceanic & Atmospheric Administration (NOAA) 2005 - 2008
  • Teaching Activities

  • Issues in Ecosystem Ecology Taught course 2018
  • Watershed Water Quality Mgt Taught course 2018
  • Watershed Water Quality Mgt Taught course 2018
  • Issues in Ecosystem Ecology Taught course 2017
  • Watershed Water Quality Mgt Taught course 2017
  • Watershed Water Quality Mgt Taught course 2017
  • Issues in Ecosystem Ecology Taught course 2015
  • Watershed Water Quality Mgt Taught course 2015
  • Watershed Water Quality Mgt Taught course 2015
  • Watershed Water Quality Mgt Taught course 2014
  • Watershed Water Quality Mgt Taught course 2014
  • Education And Training

  • B.A. Biological&Biomedical Sci.Rel., Amherst College
  • Ph.D. Ecology, Cornell University
  • Full Name

  • William McDowell