Scholarly & Creative Works
selected scholarly works & creative activities
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Article
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2022High-Frequency Concurrent Measurements in Watershed and Impaired Estuary Reveal Coupled DOC and Decoupled Nitrate Dynamics. ESTUARIES AND COASTS. 45:445-461.Full Text via DOI: 10.1007/s12237-021-00965-8 Web of Science: 000659793100001
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2022Influence of watershed suburbanization on leaf litter decomposition and microbial activity. HYDROBIOLOGIA. 849:245-260.Full Text via DOI: 10.1007/s10750-021-04724-5 Web of Science: 000712488900001
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2022Shifting stoichiometry: Long-term trends in stream-dissolved organic matter reveal altered C:N ratios due to history of atmospheric acid deposition. GLOBAL CHANGE BIOLOGY. 28:98-114.Full Text via DOI: 10.1111/gcb.15965 Web of Science: 000714812500001
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2021Climate Variability Drives Watersheds Along a Transporter-Transformer Continuum. GEOPHYSICAL RESEARCH LETTERS. 48.Full Text via DOI: 10.1029/2021GL094050 Web of Science: 000716768700032
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2021Northeastern mountain ponds as sentinels of change: Current and emerging research and monitoring in the context of shifting chemistry and climate interactions. ATMOSPHERIC ENVIRONMENT. 264.Full Text via DOI: 10.1016/j.atmosenv.2021.118694
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2021Divergent Controls on Stream Greenhouse Gas Concentrations Across a Land-Use Gradient. ECOSYSTEMS. 24:1299-1316.Full Text via DOI: 10.1007/s10021-020-00584-7 Web of Science: 000595375400002
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2021High-frequency multi-solute calibration using an in situ UV-visible sensor. HYDROLOGICAL PROCESSES. 35.Full Text via DOI: 10.1002/hyp.14357 Web of Science: 000700789300009
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2021Gradients of Anthropogenic Nutrient Enrichment Alter N Composition and DOM Stoichiometry in Freshwater Ecosystems. GLOBAL BIOGEOCHEMICAL CYCLES. 35.Full Text via DOI: 10.1029/2021GB006953 Web of Science: 000690773700001
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2021Distinctive Patterns and Controls of Nitrous Oxide Concentrations and Fluxes from Urban Inland Waters. ENVIRONMENTAL SCIENCE & TECHNOLOGY. 55:8422-8431.Full Text via DOI: 10.1021/acs.est.1c00647 Web of Science: 000663939900065
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2021Landslides, hurricanes, and sediment sourcing impact basin-scale erosion estimates in Luquillo, Puerto Rico. EARTH AND PLANETARY SCIENCE LETTERS. 562.Full Text via DOI: 10.1016/j.epsl.2021.116821 Web of Science: 000636736200006
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2021Global carbon dioxide efflux from rivers enhanced by high nocturnal emissions. NATURE GEOSCIENCE. 14:289-+.Full Text via DOI: 10.1038/s41561-021-00722-3 Web of Science: 000640456800002
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2021Luquillo experimental forest: Catchment science in the montane tropics. HYDROLOGICAL PROCESSES. 35.Full Text via DOI: 10.1002/hyp.14146 Web of Science: 000645220700004
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2021The Lamprey River Hydrological Observatory: Suburbanization and changing seasonality. HYDROLOGICAL PROCESSES. 35.Full Text via DOI: 10.1002/hyp.14131 Web of Science: 000645220700045
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2021Hydrological Mapping in the Luquillo Experimental Forest: New Local Datum Improves Watershed Ecological KnowledgeFull Text via DOI: 10.3390/hydrology8010054 Web of Science: 000633110200001
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2021Nitrate uptake enhanced by availability of dissolved organic matter in tropical montane streams. FRESHWATER SCIENCE. 40:65-76.Full Text via DOI: 10.1086/713070 Web of Science: 000617302600001
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2021Predicting high-frequency variation in stream solute concentrations with water quality sensors and machine learning. HYDROLOGICAL PROCESSES. 35.Full Text via DOI: 10.1002/hyp.14000 Web of Science: 000598772800001
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2021Quantifying the frequency of synchronous carbon and nitrogen export to the river network. BIOGEOCHEMISTRY. 152:1-12.Full Text via DOI: 10.1007/s10533-020-00741-z Web of Science: 000604484200005
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2021Watershed studies at the Hubbard Brook Experimental Forest: Building on a long legacy of research with new approaches and sources of data. HYDROLOGICAL PROCESSES. 35.Full Text via DOI: 10.1002/hyp.14016 Web of Science: 000612550300006
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2020Resolving a paradox-high mercury deposition, but low bioaccumulation in northeastern Puerto Rico. ECOTOXICOLOGY. 29:1207-1220.Full Text via DOI: 10.1007/s10646-019-02108-z Web of Science: 000492172100001
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2020Dissolved Organic Carbon and Nitrate Concentration-Discharge Behavior Across Scales: Land Use, Excursions, and Misclassification. WATER RESOURCES RESEARCH. 56.Full Text via DOI: 10.1029/2019WR027028 Web of Science: 000582701700073
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2020Wildfires lead to decreased carbon and increased nitrogen concentrations in upland arctic streams. SCIENTIFIC REPORTS. 10.Full Text via DOI: 10.1038/s41598-020-65520-0 Web of Science: 000540472300042
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2019African dust deposition in Puerto Rico: Analysis of a 20-year rainfall chemistry record and comparison with models. ATMOSPHERIC ENVIRONMENT. 216.Full Text via DOI: 10.1016/j.atmosenv.2019.116907 Web of Science: 000525864200005
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2019Hysteretic Response of Solutes and Turbidity at the Event Scale Across Forested Tropical Montane WatershedsFull Text via DOI: 10.3389/feart.2019.00126 Web of Science: 000470004500001
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2019Fire severity, time since fire, and site- eve characteristics influence streamwater chemistry at baseflow conditions in catchments of the Sierra Nevada, California, USA. FIRE ECOLOGY. 15.Full Text via DOI: 10.1186/s42408-018-0022-8 Web of Science: 000461334000001
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2019Homogenization of dissolved organic matter within a river network occurs in the smallest headwaters. BIOGEOCHEMISTRY. 143:85-104.Full Text via DOI: 10.1007/s10533-019-00551-y Web of Science: 000460883500006
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2019Nutrient export and elemental stoichiometry in an urban tropical river. ECOLOGICAL APPLICATIONS. 29.Full Text via DOI: 10.1002/eap.1839 Web of Science: 000460170200004
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2019Trace metals in Northern New England streams: Evaluating the role of road salt across broad spatial scales with synoptic snapshots. PLOS ONE. 14.Full Text via DOI: 10.1371/journal.pone.0212011 Web of Science: 000458761300068
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2019Effects of Grazing Pattern on Ecosystem Respiration and Methane Flux in a Sown Pasture in Inner Mongolia, ChinaFull Text via DOI: 10.3390/atmos10010005 Web of Science: 000459133000005
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2018Nitrogen removal rates in a frigid high-altitude river estimated by measuring dissolved N2 and N2O. SCIENCE OF THE TOTAL ENVIRONMENT. 645:318-328.Full Text via DOI: 10.1016/j.scitotenv.2018.07.090 Web of Science: 000445164200030
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2018Give and Take: A Watershed Acid Rain Mitigation Experiment Increases Baseflow Nitrogen Retention but Increases Stormflow Nitrogen Export. ENVIRONMENTAL SCIENCE & TECHNOLOGY. 52:13155-13165.Full Text via DOI: 10.1021/acs.est.8b03553 Web of Science: 000451245700023
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2018Multiyear Trends in Solute Concentrations and Fluxes From a Suburban Watershed: Evaluating Effects of 100-Year Flood Events. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES. 123:3072-3087.Full Text via DOI: 10.1029/2018JG004657 Web of Science: 000447644800027
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2018Ideas and perspectives: Strengthening the biogeosciences in environmental research networks. BIOGEOSCIENCES. 15:4815-4832.Full Text via DOI: 10.5194/bg-15-4815-2018 Web of Science: 000441625600002
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2018Acidification and Climate Linkages to Increased Dissolved Organic Carbon in High-Elevation Lakes. WATER RESOURCES RESEARCH. 54:5376-5393.Full Text via DOI: 10.1029/2017WR020963 Web of Science: 000445451800012
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2018Genesis, 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.Full Text via DOI: 10.1016/j.scitotenv.2017.12.001 Web of Science: 000428194000141
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2018Permafrost Regime Affects the Nutritional Status and Productivity of Larches in Central Siberia. FORESTS. 9.Full Text via DOI: 10.3390/f9060314 Web of Science: 000436277900031
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2018Using In-Situ Optical Sensors to Understand the Biogeochemistry of Dissolved Organic Matter Across a Stream Network. WATER RESOURCES RESEARCH. 54:2949-2958.Full Text via DOI: 10.1002/2017WR022168 Web of Science: 000434186400025
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2018An Evaluation of Nitrate, fDOM, and Turbidity Sensors in New Hampshire Streams. WATER RESOURCES RESEARCH. 54:2466-2479.Full Text via DOI: 10.1002/2017WR020678 Web of Science: 000430364900057
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2018Effects of plant species on stream bacterial communities via leachate from leaf litter. HYDROBIOLOGIA. 807:131-144.Full Text via DOI: 10.1007/s10750-017-3386-x Web of Science: 000417867600009
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2018The next generation of site-based long-term ecological monitoring: Linking essential biodiversity variables and ecosystem integrity. SCIENCE OF THE TOTAL ENVIRONMENT. 613:1376-1384.Full Text via DOI: 10.1016/j.scitotenv.2017.08.111 Web of Science: 000414160500138
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2017Designing a network of critical zone observatories to explore the living skin of the terrestrial EarthFull Text via DOI: 10.5194/esurf-5-841-2017 Web of Science: 000419316700001
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2017Connecting tropical river DOM and POM to the landscape with lignin. GEOCHIMICA ET COSMOCHIMICA ACTA. 219:143-159.Full Text via DOI: 10.1016/j.gca.2017.09.028 Web of Science: 000413000200009
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2017Deconstructing the Effects of Flow on DOC, Nitrate, and Major Ion Interactions Using a High-Frequency Aquatic Sensor Network. WATER RESOURCES RESEARCH. 53:10655-10673.Full Text via DOI: 10.1002/2017WR020739 Web of Science: 000423299000037
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2017Nitrification increases nitrogen export from a tropical river network. FRESHWATER SCIENCE. 36:698-712.Full Text via DOI: 10.1086/694906 Web of Science: 000416259800002
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2017Concentration-Discharge Relations in the Critical Zone: Implications for Resolving Critical Zone Structure, Function, and Evolution. WATER RESOURCES RESEARCH. 53:8654-8659.Full Text via DOI: 10.1002/2017WR021111 Web of Science: 000418736700001
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2017LAGOS-NE: a multi-scaled geospatial and temporal database of lake ecological context and water quality for thousands of US lakes. GIGASCIENCE. 6.Full Text via DOI: 10.1093/gigascience/gix101 Web of Science: 000419639300001
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2017A case study characterizing animal fecal sources in surface water using a mitochondrial DNA marker. ENVIRONMENTAL MONITORING AND ASSESSMENT. 189.Full Text via DOI: 10.1007/s10661-017-6107-z Web of Science: 000410241300010
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2017Critical zone structure controls concentration-discharge relationships and solute generation in forested tropical montane watersheds. WATER RESOURCES RESEARCH. 53:6279-6295.Full Text via DOI: 10.1002/2016WR020016 Web of Science: 000407895000059
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2017Tropical river suspended sediment and solute dynamics in storms during an extreme drought. WATER RESOURCES RESEARCH. 53:3695-3712.Full Text via DOI: 10.1002/2016WR019737 Web of Science: 000403712100014
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2017A longer vernal window: the role of winter coldness and snowpack in driving spring transitions and lags. GLOBAL CHANGE BIOLOGY. 23:1610-1625.Full Text via DOI: 10.1111/gcb.13517 Web of Science: 000396836800021
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2017SIPCO2: A simple, inexpensive surface water pCO2 sensor. LIMNOLOGY AND OCEANOGRAPHY-METHODS. 15:291-301.Full Text via DOI: 10.1002/lom3.10157 Web of Science: 000397732400005
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2017Recovery from acidification alters concentrations and fluxes of solutes from Czech catchments. BIOGEOCHEMISTRY. 132:251-272.Full Text via DOI: 10.1007/s10533-017-0298-9 Web of Science: 000396123500002
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2017Mass mortality of a dominant invasive species in response to an extreme climate event: Implications for ecosystem function. LIMNOLOGY AND OCEANOGRAPHY. 62:177-188.Full Text via DOI: 10.1002/lno.10384 Web of Science: 000393804600012
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2016Greenhouse gas flux from headwater streams in New Hampshire, USA: Patterns and drivers. LIMNOLOGY AND OCEANOGRAPHY. 61:S165-S174.Full Text via DOI: 10.1002/lno.10337 Web of Science: 000388560900013
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2016Understanding Dissolved Organic Matter Biogeochemistry Through In Situ Nutrient Manipulations in Stream Ecosystems. JOVE-JOURNAL OF VISUALIZED EXPERIMENTS.Full Text via DOI: 10.3791/54704 Web of Science: 000397844900071
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2016Variation of organic matter quantity and quality in streams at Critical Zone Observatory watersheds. WATER RESOURCES RESEARCH. 52:8202-8216.Full Text via DOI: 10.1002/2016WR018970 Web of Science: 000388493400038
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2016Nitrate uptake across biomes and the influence of elemental stoichiometry: A new look at LINX II. GLOBAL BIOGEOCHEMICAL CYCLES. 30:1183-1191.Full Text via DOI: 10.1002/2016GB005468 Web of Science: 000388457500004
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2016Two roles for ecological surrogacy: Indicator surrogates and management surrogates. ECOLOGICAL INDICATORS. 63:121-125.Full Text via DOI: 10.1016/j.ecolind.2015.11.049 Web of Science: 000370906000013
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2016Impact of Long-Range Transported African Dust on Cloud Water Chemistry at a Tropical Montane Cloud Forest in Northeastern Puerto Rico. AEROSOL AND AIR QUALITY RESEARCH. 16:653-664.Full Text via DOI: 10.4209/aaqr.2015.05.0320 Web of Science: 000371498900016
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2016Limited uptake of nutrient input from sewage effluent in a tropical landscape. FRESHWATER SCIENCE. 35:12-24.Full Text via DOI: 10.1086/684992 Web of Science: 000370993800002
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2016Nitrogen additions mobilize soil base cations in two tropical forests. BIOGEOCHEMISTRY. 128:67-88.Full Text via DOI: 10.1007/s10533-016-0195-7 Web of Science: 000374557300005
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2016Extreme weather years drive episodic changes in lake chemistry: implications for recovery from sulfate deposition and long-term trends in dissolved organic carbon. BIOGEOCHEMISTRY. 127:353-365.Full Text via DOI: 10.1007/s10533-016-0185-9 Web of Science: 000371606000013
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2016DOC:NO3- ratios and NO3- uptake in forested headwater streams. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES. 121:205-217.Full Text via DOI: 10.1002/2015JG003146 Web of Science: 000370173100013
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2015A new framework for selecting environmental surrogates. SCIENCE OF THE TOTAL ENVIRONMENT. 538:1029-1038.Full Text via DOI: 10.1016/j.scitotenv.2015.08.056 Web of Science: 000363348900099
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2015Nutrient uptake along a fire gradient in boreal streams of Central Siberia. FRESHWATER SCIENCE. 34:1443-1456.Full Text via DOI: 10.1086/683481 Web of Science: 000364815000020
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2015Direct response of dissolved organic nitrogen to nitrate availability in headwater streams. BIOGEOCHEMISTRY. 126:1-10.Full Text via DOI: 10.1007/s10533-015-0153-9 Web of Science: 000365868400001
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2015Remote sensing of foliar nitrogen in cultivated grasslands of human dominated landscapes. REMOTE SENSING OF ENVIRONMENT. 167:88-97.Full Text via DOI: 10.1016/j.rse.2015.06.009 Web of Science: 000360510800009
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2015Leaf-litter leachate is distinct in optical properties and bioavailability to stream heterotrophs. FRESHWATER SCIENCE. 34:857-866.Full Text via DOI: 10.1086/682000 Web of Science: 000359667700004
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2015Long-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.Full Text via DOI: 10.1093/treephys/tpv044 Web of Science: 000360590100009
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2015Effects of headwater wetlands on dissolved nitrogen and dissolved organic carbon concentrations in a suburban New Hampshire watershed. FRESHWATER SCIENCE. 34:456-471.Full Text via DOI: 10.1086/680985 Web of Science: 000354387700006
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2015Interbasin flow of geothermally modified ground water stabilizes stream exports of biologically important solutes against variation in precipitation. FRESHWATER SCIENCE. 34:276-286.Full Text via DOI: 10.1086/679739 Web of Science: 000349995000021
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2015NEON and STREON: opportunities and challenges for the aquatic sciences. FRESHWATER SCIENCE. 34:386-391.Full Text via DOI: 10.1086/679489 Web of Science: 000349995000030
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2015Qualitative 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 China. APPLIED GEOCHEMISTRY. 52:67-75.Full Text via DOI: 10.1016/j.apgeochem.2014.11.014 Web of Science: 000346850700007
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2014Linking soils and streams: Response of soil solution chemistry to simulated hurricane disturbance mirrors stream chemistry following a severe hurricane. FOREST ECOLOGY AND MANAGEMENT. 332:56-63.Full Text via DOI: 10.1016/j.foreco.2014.06.001 Web of Science: 000347595700006
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2014Chronic nitrogen additions suppress decomposition and sequester soil carbon in temperate forests. BIOGEOCHEMISTRY. 121:305-316.Full Text via DOI: 10.1007/s10533-014-0004-0 Web of Science: 000343135800002
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2014Ecosystem metabolism and nutrient uptake in an urban, piped headwater stream. BIOGEOCHEMISTRY. 121:167-187.Full Text via DOI: 10.1007/s10533-013-9900-y Web of Science: 000341908600009
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2014Incorporating urban infrastructure into biogeochemical assessment of urban tropical streams in Puerto Rico. BIOGEOCHEMISTRY. 121:271-286.Full Text via DOI: 10.1007/s10533-013-9914-5 Web of Science: 000341908600014
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2014Tracking evolution of urban biogeochemical cycles: past, present, and future. BIOGEOCHEMISTRY. 121:1-21.Full Text via DOI: 10.1007/s10533-014-0014-y Web of Science: 000341908600001
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2014Dissolved Organic Matter: Linking Soils and Aquatic Systems. VADOSE ZONE JOURNAL. 13.Full Text via DOI: 10.2136/vzj2014.05.0051 Web of Science: 000343161800010
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2014Decadal Trends Reveal Recent Acceleration in the Rate of Recovery from Acidification in the Northeastern US. ENVIRONMENTAL SCIENCE & TECHNOLOGY. 48:4681-4689.Full Text via DOI: 10.1021/es404772n Web of Science: 000335720100006
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2014Improving automated phosphorus measurements in freshwater: an analytical approach to eliminating silica interference. LIMNOLOGY AND OCEANOGRAPHY-METHODS. 12:223-231.Full Text via DOI: 10.4319/lom.2014.12.223 Web of Science: 000336246500007
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2014Chemistry of the heavily urbanized Bagmati River system in Kathmandu Valley, Nepal: export of organic matter, nutrients, major ions, silica, and metals. ENVIRONMENTAL EARTH SCIENCES. 71:911-922.Full Text via DOI: 10.1007/s12665-013-2494-9 Web of Science: 000329996200038
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2014Novel ecosystems in the Anthropocene: a revision of the novel ecosystem concept for pragmatic applications. ECOLOGY AND SOCIETY. 19.Full Text via DOI: 10.5751/ES-06192-190212 Web of Science: 000338711600007
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2013Interactions between lithology and biology drive the long-term response of stream chemistry to major hurricanes in a tropical landscape. BIOGEOCHEMISTRY. 116:175-186.Full Text via DOI: 10.1007/s10533-013-9916-3 Web of Science: 000328197800013
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2013Permafrost and fire as regulators of stream chemistry in basins of the Central Siberian Plateau. BIOGEOCHEMISTRY. 116:55-68.Full Text via DOI: 10.1007/s10533-013-9922-5 Web of Science: 000328197800005
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2013Dissolved Organic Carbon in Headwater Streams and Riparian Soil Organic Carbon along an Altitudinal Gradient in the Wuyi Mountains, China. PLOS ONE. 8.Full Text via DOI: 10.1371/journal.pone.0078973 Web of Science: 000327252100070
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2013Limited effects of suburbanization on the genetic structure of an abundant vernal pool-breeding amphibian. CONSERVATION GENETICS. 14:1083-1097.Full Text via DOI: 10.1007/s10592-013-0497-4 Web of Science: 000325127100015
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2013Quantifying the production of dissolved organic nitrogen in headwater streams using 15N tracer additions. LIMNOLOGY AND OCEANOGRAPHY. 58:1271-1285.Full Text via DOI: 10.4319/lo.2013.58.4.1271 Web of Science: 000322514600011
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2013Persistent effects of acidification on stream ecosystem structure and function. FRESHWATER SCIENCE. 32:586-596.Full Text via DOI: 10.1899/12-130.1 Web of Science: 000318774500018
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2013When Wet Gets Wetter: Decoupling of Moisture, Redox Biogeochemistry, and Greenhouse Gas Fluxes in a Humid Tropical Forest Soil. ECOSYSTEMS. 16:576-589.Full Text via DOI: 10.1007/s10021-012-9631-2 Web of Science: 000318998500004
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2013A Comparison of Wet Deposition Collectors at a Coastal Rural Site. WATER AIR AND SOIL POLLUTION. 224.Full Text via DOI: 10.1007/s11270-013-1558-5 Web of Science: 000319161400030
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2013Chemical constituents in clouds and rainwater in the Puerto Rican rainforest: Potential sources and seasonal drivers. ATMOSPHERIC ENVIRONMENT. 68:208-220.Full Text via DOI: 10.1016/j.atmosenv.2012.11.017 Web of Science: 000315241100024
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2013Trends in stream nitrogen concentrations for forested reference catchments across the USA. ENVIRONMENTAL RESEARCH LETTERS. 8.Full Text via DOI: 10.1088/1748-9326/8/1/014039 Web of Science: 000316998300047
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2012Effects of suburbanization on foodweb stoichiometry of detritus-based streams. FRESHWATER SCIENCE. 31:1202-1213.Full Text via DOI: 10.1899/12-004.1 Web of Science: 000311266300016
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2012Influence of land use changes on water chemistry in streams in the State of Sao Paulo, southeast BrazilFull Text via DOI: 10.1590/S0001-37652012000400007 Web of Science: 000311808100007
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2012Global abundance and size distribution of streams and rivers. INLAND WATERS. 2:229-236.Full Text via DOI: 10.5268/IW-2.4.502 Web of Science: 000310881900007
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2011Export of dissolved carbon from watersheds of the Central Siberian PlateauFull Text via DOI: 10.1134/S1028334X11110195 Web of Science: 000298394100023
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2011An integrated conceptual framework for long-term social-ecological research. FRONTIERS IN ECOLOGY AND THE ENVIRONMENT. 9:351-357.Full Text via DOI: 10.1890/100068 Web of Science: 000293532500022
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2011Microbial immobilization and mineralization of dissolved organic nitrogen from forest floors. SOIL BIOLOGY & BIOCHEMISTRY. 43:1742-1745.Full Text via DOI: 10.1016/j.soilbio.2011.04.021 Web of Science: 000292995300016
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2010Total carbon analysis may overestimate organic carbon content of fresh waters in the presence of high dissolved inorganic carbon. LIMNOLOGY AND OCEANOGRAPHY-METHODS. 8:196-201.Full Text via DOI: 10.4319/lom.2010.8.196 Web of Science: 000280406800004
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2010Stream geochemistry, chemical weathering and CO2 consumption potential of andesitic terrains, Dominica, Lesser Antilles. GEOCHIMICA ET COSMOCHIMICA ACTA. 74:85-103.Full Text via DOI: 10.1016/j.gca.2009.10.009 Web of Science: 000273109700007
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2009Biological Nitrogen Fixation in Two Tropical Forests: Ecosystem-Level Patterns and Effects of Nitrogen Fertilization. ECOSYSTEMS. 12:1299-1315.Full Text via DOI: 10.1007/s10021-009-9290-0 Web of Science: 000272782900005
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2009The biogeochemical influences of NO(3)(-), dissolved O(2), and dissolved organic C on stream NO(3)(-) uptake. JOURNAL OF THE NORTH AMERICAN BENTHOLOGICAL SOCIETY. 28:894-907.Full Text via DOI: 10.1899/08-183.1 Web of Science: 000273886000012
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2009Nitrate removal in stream ecosystems measured by 15N addition experiments: Denitrification. LIMNOLOGY AND OCEANOGRAPHY. 54:666-680.Full Text via DOI: 10.4319/lo.2009.54.3.0666 Web of Science: 000268325000002
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2008Seasonal 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.Full Text via DOI: 10.1016/j.ecss.2007.09.033 Web of Science: 000254816400007
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2008Long-term trends in stream nitrate concentrations and losses across watersheds undergoing recovery from acidification in the Czech Republic. ECOSYSTEMS. 11:410-425.Full Text via DOI: 10.1007/s10021-008-9130-7 Web of Science: 000255537400005
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2008Stream denitrification across biomes and its response to anthropogenic nitrate loading. NATURE. 452:202-U46.Full Text via DOI: 10.1038/nature06686 Web of Science: 000253925600037
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2008Groundwater-surface water interactions, nutrient fluxes and ecological response in river corridors: Translating science into effective environmental management. HYDROLOGICAL PROCESSES. 22:151-157.Full Text via DOI: 10.1002/hyp.6902 Web of Science: 000252544800013
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2007Source- and substrate-specific export of dissolved organic matter from permafrost-dominated forested watershed in central Siberia. GLOBAL BIOGEOCHEMICAL CYCLES. 21.Full Text via DOI: 10.1029/2007GB002938 Web of Science: 000250218600003
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2007Evolution of chemistry along the Bagmati drainage network in Kathmandu valley. WATER AIR AND SOIL POLLUTION. 185:165-176.Full Text via DOI: 10.1007/s11270-007-9439-4 Web of Science: 000249635700015
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2007Spatial and temporal variation of dissolved organic carbon export from gauged and ungauged watersheds of Dee Valley, Scotland:: Effect of land cover and C:N. WATER RESOURCES RESEARCH. 43.Full Text via DOI: 10.1029/2006WR004999 Web of Science: 000246953500002
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2007Modelling DOC export from watersheds in Scotland using neural networks. COMPUTERS & GEOSCIENCES. 33:423-436.Full Text via DOI: 10.1016/j.cageo.2006.08.002 Web of Science: 000244632600011
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2007Disturbance and long-term patterns of rainfall and throughfall nutrient fluxes in a subtropical wet forest in Puerto Rico. JOURNAL OF HYDROLOGY. 333:472-485.Full Text via DOI: 10.1016/j.jhydrol.2006.09.019 Web of Science: 000244160900023
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2006Do small-scale exclosure/enclosure experiments predict the effects of large-scale extirpation of freshwater migratory fauna?. OECOLOGIA. 149:709-717.Full Text via DOI: 10.1007/s00442-006-0472-6 Web of Science: 000240799700015
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2006The global abundance and size distribution of lakes, ponds, and impoundments. LIMNOLOGY AND OCEANOGRAPHY. 51:2388-2397.Full Text via DOI: 10.4319/lo.2006.51.5.2388 Web of Science: 000240673800041
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2006Linking foliar chemistry to forest floor solid and solution phase organic C and N in Picea abies [L.] karst stands in northern Bohemia. PLANT AND SOIL. 283:187-201.Full Text via DOI: 10.1007/s11104-006-0010-7 Web of Science: 000239042200017
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2006Indirect upstream effects of dams: Consequences of migratory consumer extirpation in Puerto Rico. ECOLOGICAL APPLICATIONS. 16:339-352.Full Text via DOI: 10.1890/05-0243 Web of Science: 000236510100030
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2004Role of wetlands and developed land use on dissolved organic nitrogen concentrations and DON/TDN in northeastern US rivers and streams. LIMNOLOGY AND OCEANOGRAPHY. 49:910-918.Full Text via DOI: 10.4319/lo.2004.49.4.0910 Web of Science: 000224979700003
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2004Moisture and substrate availability constrain soil trace gas fluxes in an eastern Amazonian regrowth forest -: art. no. GB2009. GLOBAL BIOGEOCHEMICAL CYCLES. 18.Full Text via DOI: 10.1029/2003GB002210 Web of Science: 000221611000002
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2002Can uptake length in streams be determined by nutrient addition experiments?: Results from an interbiome comparison study. JOURNAL OF THE NORTH AMERICAN BENTHOLOGICAL SOCIETY. 21:544-560.Full Text via DOI: 10.2307/1468429 Web of Science: 000179505500003
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2002A cross-system comparison of bacterial and fungal biomass in detritus pools of headwater streams. MICROBIAL ECOLOGY. 43:55-66.Full Text via DOI: 10.1007/s00248-001-1020-x Web of Science: 000174896300006
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2001Inter-biome comparison of factors controlling stream metabolism. FRESHWATER BIOLOGY. 46:1503-1517.Full Text via DOI: 10.1046/j.1365-2427.2001.00773.x Web of Science: 000172341400007
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2001Control of nitrogen export from watersheds by headwater streams. SCIENCE. 292:86-90.Full Text via DOI: 10.1126/science.1056874 Web of Science: 000167995200042
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2001Freshwater shrimp effects on detrital processing and nutrients in a tropical headwater stream. ECOLOGY. 82:775-783.Full Text via DOI: 10.1890/0012-9658(2001)082[0775:FSEODP]2.0.CO;2 Web of Science: 000167138200014
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2001Distribution of nitrous oxide and regulators of its production across a tropical rainforest catena in the Luquillo Experimental Forest, Puerto Rico. BIOGEOCHEMISTRY. 56:265-286.Full Text via DOI: 10.1023/A:1013191010244 Web of Science: 000172591200002
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2000Biodegradable dissolved organic carbon in forest soil solution and effects of chronic nitrogen deposition. SOIL BIOLOGY & BIOCHEMISTRY. 32:1743-1751.Full Text via DOI: 10.1016/S0038-0717(00)00092-4 Web of Science: 000089490700027
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2000Dissolved organic nitrogen budgets for upland, forested ecosystems in New England. BIOGEOCHEMISTRY. 49:123-142.Full Text via DOI: 10.1023/A:1006383731753 Web of Science: 000085422600002
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2000Effects 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.Full Text via DOI: 10.1017/S0266467400001358 Web of Science: 000086689600002
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2000Effects 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.Full Text via DOI: 10.1017/S0266467400001346 Web of Science: 000086689600001
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1999The effect of permafrost on stream biogeochemistry: A case study of two streams in the Alaskan (USA) taiga. BIOGEOCHEMISTRY. 47:239-267.Full Text via DOI: 10.1007/BF00992909 Web of Science: 000082549300001
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1999Linking species and ecosystems: Different biotic assemblages cause interstream differences in organic matter. ECOLOGY. 80:1860-1872.Full Text via DOI: 10.2307/176664 Web of Science: 000082408300007
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1999A nitrogen budget for late-successional hillslope tabonuco forest, Puerto Rico. BIOGEOCHEMISTRY. 46:85-108.Full Text via DOI: 10.1023/A:1006104229691 Web of Science: 000080776300006
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1999Nitrogen yields from undisturbed watersheds in the Americas. BIOGEOCHEMISTRY. 46:149-162.Full Text via DOI: 10.1007/BF01007577 Web of Science: 000080776300008
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1999The globalization of N deposition: ecosystem consequences in tropical environments. BIOGEOCHEMISTRY. 46:67-83.Full Text via DOI: 10.1007/BF01007574 Web of Science: 000080776300005
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1998Internal nutrient fluxes in a Puerto Rican rain forest. JOURNAL OF TROPICAL ECOLOGY. 14:521-536.Full Text via DOI: 10.1017/S0266467498000376 Web of Science: 000075868100008
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1997Seasonal variation of tropical precipitation chemistry: La Selva, Costa Rica. ATMOSPHERIC ENVIRONMENT. 31:3903-3910.Full Text via DOI: 10.1016/S1352-2310(97)00246-X Web of Science: A1997XZ76000005
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1997Organic matter dynamics in Bear Brook, Hubbard Brook Experimental Forest, New Hampshire, USA. JOURNAL OF THE NORTH AMERICAN BENTHOLOGICAL SOCIETY. 16:43-46.Full Text via DOI: 10.2307/1468230 Web of Science: A1997WM59300010
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1996Effects of hurricane disturbance on groundwater chemistry and riparian function in a tropical rain forest. BIOTROPICA. 28:577-584.Full Text via DOI: 10.2307/2389098 Web of Science: A1996WG73500014
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1996Vertical transport of dissolved organic C and N under long-term N amendments in pine and hardwood forests. BIOGEOCHEMISTRY. 35:471-505.Full Text via DOI: 10.1007/BF02183037 Web of Science: A1996VX67100005
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1995EXPORT OF NUTRIENTS AND MAJOR IONS FROM CARIBBEAN CATCHMENTS. JOURNAL OF THE NORTH AMERICAN BENTHOLOGICAL SOCIETY. 14:12-20.Full Text via DOI: 10.2307/1467721 Web of Science: A1995QQ80800004
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1992FACTORS LIMITING PRIMARY PRODUCTIVITY IN LAKE-ONTARIO TRIBUTARIES RECEIVING SALMON MIGRATIONS. CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES. 49:2377-2385.Full Text via DOI: 10.1139/f92-262 Web of Science: A1992KF38800020
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1992MIREX - PHOTOMIREX RELATIONSHIPS IN LAKE-ONTARIO. JOURNAL OF GREAT LAKES RESEARCH. 18:405-414.Full Text via DOI: 10.1016/S0380-1330(92)71307-0 Web of Science: A1992JW93600006
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1992RIPARIAN NITROGEN DYNAMICS IN 2-GEOMORPHOLOGICALLY DISTINCT TROPICAL RAIN-FOREST WATERSHEDS - NITROUS-OXIDE FLUXES. BIOGEOCHEMISTRY. 18:77-99.Full Text via DOI: 10.1007/BF00002704 Web of Science: A1992KT58000002
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1992RIPARIAN NITROGEN DYNAMICS IN 2-GEOMORPHOLOGICALLY DISTINCT TROPICAL RAIN-FOREST WATERSHEDS - SUBSURFACE SOLUTE PATTERNS. BIOGEOCHEMISTRY. 18:53-75.Full Text via DOI: 10.1007/BF00002703 Web of Science: A1992KT58000001
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1991SUMMARY OF ECOSYSTEM-LEVEL EFFECTS OF CARIBBEAN HURRICANES. BIOTROPICA. 23:373-378.Full Text via DOI: 10.2307/2388254 Web of Science: A1991HB62200009
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1990Influence of bedrock geochemistry on the heavy metal content of stream water, marine water, marine sediments and organisms in St. John, USVI. CARIBBEAN JOURNAL OF SCIENCE. 25:218-227.
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1988CLOUDWATER CHEMISTRY FROM 10 SITES IN NORTH-AMERICA. ENVIRONMENTAL SCIENCE & TECHNOLOGY. 22:1018-1026.Full Text via DOI: 10.1021/es00174a004 Web of Science: A1988P962200009
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1985NITROGEN TRANSFORMATIONS IN A SMALL MOUNTAIN STREAM. HYDROBIOLOGIA. 124:129-139.Full Text via DOI: 10.1007/BF00006795 Web of Science: A1985AKJ4400005
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1984PODZOLIZATION - SOIL PROCESSES CONTROL DISSOLVED ORGANIC-CARBON CONCENTRATIONS IN STREAM WATER. SOIL SCIENCE. 137:23-32.Full Text via DOI: 10.1097/00010694-198401000-00004 Web of Science: A1984SA41500004
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1984SOURCES AND MOLECULAR-WEIGHT OF DISSOLVED ORGANIC-CARBON IN AN OLIGOTROPHIC LAKE. OIKOS. 42:1-9.Full Text via DOI: 10.2307/3544603 Web of Science: A1984SC51400001
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1981ACID-RAIN, DISSOLVED ALUMINUM AND CHEMICAL-WEATHERING AT THE HUBBARD-BROOK EXPERIMENTAL FOREST, NEW-HAMPSHIRE. GEOCHIMICA ET COSMOCHIMICA ACTA. 45:1421-1437.Full Text via DOI: 10.1016/0016-7037(81)90276-3 Web of Science: A1981MJ31700003
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1976AUTUMNAL PROCESSING OF DISSOLVED ORGANIC-MATTER IN A SMALL WOODLAND STREAM ECOSYSTEM. ECOLOGY. 57:561-569.Full Text via DOI: 10.2307/1936440 Web of Science: A1976CB01500013
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Effects of Sewage Effluents on Water Quality in Tropical Streams. JOURNAL OF ENVIRONMENTAL QUALITY. 43:2053-2063.Full Text via DOI: 10.2134/jeq2014.03.0139 Web of Science: 000345096000024
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Sources and the flux pattern of dissolved carbon in rivers of the Yenisey basin draining the Central Siberian Plateau. ENVIRONMENTAL RESEARCH LETTERS. 6.Full Text via DOI: 10.1088/1748-9326/6/4/045212 Web of Science: 000298674700050
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The long-term effects of disturbance on organic and inorganic nitrogen export in the White Mountains, New Hampshire. ECOSYSTEMS. 3:433-450.Full Text via DOI: 10.1007/s100210000039 Web of Science: 000165189000003
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Book
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Book Chapter
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2009Ecology and Role of Headwater Streams. 357-365.Full Text via DOI: 10.1016/B978-012370626-3.00054-5
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Conference
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2019Calcium and magnesium biogeochemistry in spruce catchments underlain by felsic, mafic, and ultramafic rocksFull Text via DOI: 10.1051/e3sconf/20199806007 Web of Science: 000503479200106
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2008Spectral 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. 424-432.Full Text via DOI: 10.1016/j.scitotenv.2007.11.006 Web of Science: 000260701900023
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2006Nitrogen and phosphorus budgets for a tropical watershed impacted by agricultural land use: Guayas, Ecuador. BIOGEOCHEMISTRY. 135-161.Full Text via DOI: 10.1007/s10533-006-9009-7 Web of Science: 000240033100008
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2006Urban influences on the nitrogen cycle in Puerto Rico. BIOGEOCHEMISTRY. 109-133.Full Text via DOI: 10.1007/s10533-006-9005-y Web of Science: 000240033100007
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2003Dissolved organic matter in soils - future directions and unanswered questions. GEODERMA. 179-186.Full Text via DOI: 10.1016/S0016-7061(02)00360-9 Web of Science: 000181662900002
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2000Analysis of nitrogen dynamics in the Lye Brook Wilderness area, Vermont, USA. WATER AIR AND SOIL POLLUTION. 63-75.Full Text via DOI: 10.1023/A:1005258814565 Web of Science: 000088634800006
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Letter
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2017Nitrate decline unlikely to have triggered release of dissolved organic carbon and phosphate to streams. GLOBAL CHANGE BIOLOGY. 2535-2536.Full Text via DOI: 10.1111/gcb.13659 Web of Science: 000402514900002
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Note
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1987SIMPLIFIED VERSION OF THE AMPOULE-PERSULFATE METHOD FOR DETERMINATION OF DISSOLVED ORGANIC-CARBON. CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES. 214-218.Full Text via DOI: 10.1139/f87-029 Web of Science: A1987G059200028
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Other Scholarly Work
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2012The response of heterotrophic activity and carbon cycling to nitrogen additions and warming in two tropical soils (vol 16, pg 2555, 2010). GLOBAL CHANGE BIOLOGY. 400-400.Full Text via DOI: 10.1111/j.1365-2486.2011.02581.x Web of Science: 000298598900033
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2005Long-term decreases in stream nitrate: Successional causes unlikely; Possible links to DOC?. ECOSYSTEMS. 334-337.Full Text via DOI: 10.1007/s10021-003-0162-8 Web of Science: 000229935500008
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Review
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2019LINX I and II: Lessons Learned and Emerging QuestionsFull Text via DOI: 10.3389/fenvs.2019.00181 Web of Science: 000535833300001
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2018The metabolic regimes of flowing waters. LIMNOLOGY AND OCEANOGRAPHY. S99-S118.Full Text via DOI: 10.1002/lno.10726 Web of Science: 000427077300008
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2016Dissolved organic carbon uptake in streams: A review and assessment of reach-scale measurements. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES. 2019-2029.Full Text via DOI: 10.1002/2015JG003204 Web of Science: 000385712400012
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2015Urban Evolution: The Role of Water. 4063-4087.Full Text via DOI: 10.3390/w7084063 Web of Science: 000360628400004
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2015Consequence of altered nitrogen cycles in the coupled human and ecological system under changing climate: The need for long-term and site-based research. AMBIO. 178-193.Full Text via DOI: 10.1007/s13280-014-0545-4 Web of Science: 000351293600003
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2009Predator-prey interactions in river networks: comparing shrimp spatial refugia in two drainage basins. FRESHWATER BIOLOGY. 450-465.Full Text via DOI: 10.1111/j.1365-2427.2008.02121.x Web of Science: 000263245000002
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2007Plumbing the global carbon cycle: Integrating inland waters into the terrestrial carbon budget. ECOSYSTEMS. 171-184.Full Text via DOI: 10.1007/s10021-006-9013-8 Web of Science: 000246766000015
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2006Does anthropogenic nitrogen enrichment increase organic nitrogen concentrations in runoff from forested and human-dominated watersheds?. ECOSYSTEMS. 852-864.Full Text via DOI: 10.1007/s10021-006-0076-3 Web of Science: 000240832800014
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2003Factors affecting ammonium uptake in streams -: an inter-biome perspective. FRESHWATER BIOLOGY. 1329-1352.Full Text via DOI: 10.1046/j.1365-2427.2003.01094.x Web of Science: 000184203500004
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2000Soil C:N ratio as a predictor of annual riverine DOC flux at local and global scales. GLOBAL BIOGEOCHEMICAL CYCLES. 127-138.Full Text via DOI: 10.1029/1999GB900083 Web of Science: 000085808900011
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1998Nitrogen saturation in temperate forest ecosystems - Hypotheses revisited. BIOSCIENCE. 921-934.Full Text via DOI: 10.2307/1313296 Web of Science: 000076533500009
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1994THE IMPORTANCE OF NUTRIENT PULSES IN TROPICAL FORESTS. TRENDS IN ECOLOGY & EVOLUTION. 384-387.Full Text via DOI: 10.1016/0169-5347(94)90060-4 Web of Science: A1994PE12200014
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1984NEW PERSPECTIVES IN ECOTOXICOLOGY. ENVIRONMENTAL MANAGEMENT. 375-442.Full Text via DOI: 10.1007/BF01871807 Web of Science: A1984TU22700001
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Research
principal investigator on
co-principal investigator on
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Grant
- Coastal Subsurface Monitoring awarded by National Oceanic and Atmospheric Admin 2023 - 2028
