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Research

Selected听Recent Publications

(* denotes student author)

  • Olivia Ventresca, Ashley Acevedo, Kristina Nicholas, Jonathan Craig, Sophia Carpenter, Christia Fisher, Madeleine Danzberger, Cassidy Williams, Barbara Balestra and Stephen MacAvoy. 2024. Concentration and distribution of specific siloxanes (D5 and D6) and PAHs in the Anacostia and Potomac Rivers, USA. Water16 16, 2059.
  • Michael A. Petriello, Lauren Redmore, Aby L. S猫ne,听Dhananjaya Katju, Lilian Barraclough, Sara Boyd, Carly Madge, Anastasia Papadopoulos, Reddi S. Yalamala,听,听Conservation Biology,听March 2024.
  • Davey E, Meiller J, Kontana K, Fox D, Landaverde N, MacAvoy SE, Balestra B. (2023). Microplastics and polycyclic aromatic hydrocarbons: abundance, distribution, and chemical analyses in the Nash Run, an urban tributary to the Anacostia River (Washington, DC). Water, Air and Soil Pollution 234: 493.
  • Malik, S, Cohen A, MacAvoy听SE, Connaughton VP. (2023). The importance of assessing water quality in tributaries: A case study in an urban waterway using zebrafish (Danio rerio). Water 15: 2372.
  • Kolowski, J. M., C. Wolfer, M. McDaniels, A. Williams, and J.B.C. Harris. 2023. , USA. Journal of Raptor Research 57:1鈥19.
  • Williams, Claire G. (invited book chapter), 2023.
  • Williams, Claire G. and Fatin Samara. Changing particle content of the modern desert storm: a climate x health problem. Environmental Monitoring & Assessment. In press: 10.1007/S10661-028-11287-6.听2023.
  • Hicks CC,听Gephart J.A., Koehn J.Z., Nakayama S, Payne H.J., Allison E.H., Belhbib D., Cao L., Cohen P.J., Fanzo J., Fluet-Chouinard E. et al. Rights and representation support justice across aquatic food systems. Nature Food. 2022 Oct 18:1-1.
  • Doglioni, G.,听Aquila, V., Das, S., Colarco, P. R., and Zardi, D.: Dynamical perturbation of the stratosphere by a pyrocumulonimbus injection of carbonaceous aerosols, Atmos. Chem. Phys., 22, 11049鈥11064,听, 2022.
  • Burch, E.*,听Culver, D. C.,听Alonzo, M., & Malloy, E. J. (2022). Landscape features and forest maturity promote the occurrence of macroinvertebrates specialized for seepage springs in urban forests in Washington, DC.听Aquatic Conservation: Marine and Freshwater Ecosystems.
  • R. Binte Sharif, P. Houser,听V. Aquila, V. Maggioni, Investigating Rainfall Patterns in the Hubei Province, China and Northern Italy During the COVID-19 lockdowns. Front. Clim.听听(2022).
  • Balestra, B., Rose, T., Fehrenbacher, J., Knobelspiesse, K., Huber, B, Godding, T., Paytan, A. (2021). In situ Mg/Ca measurements on foraminifera: comparison between Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Wavelength-Dispersive X-Ray Spectroscopy by electron probe microanalyzer (EPMA). Geochemistry, Geophysics, Geosystems, 22, e2020GC009449.听.
  • Williams Claire G. and Michael S. Greenwood. 2022. . Grana 61(5): 349-354.
  • Gephart, JA, PJG Henriksson, RWR Parker, A Shepon, KD Gorospe, K Bergman, G Eshel, CD Golden, BS Halpern, S Hornborg, M Jonell, M Metian, K Mifflin, R Newton, P Tyedmers, W Zhang, F Ziegler and M Troell (2021) Environmental performance of blue foods. Nature, 597(7876), pp.360-365. [Featured on cover]

Colin P. Casey*, Matthew R. Hartings, Melissa A. Knapp*, Elizabeth J. Malloy, and听Karen L. Knee. 2022. Characterizing the association between oil and gas development and water quality at a regional scale.听Freshwater Science听41(2): 236-252. MacAvoy Stephen E, Lunine Alex*. 2022. Anthropogenic influences on an urban river: differences in cations and nutrients along an urban/suburban transect. Water 14:1330 doi.org/10.3390/w14091330

Halpern BS, Frazier M, Verstaen J, Rayner PE, Clawson G, Blanchard JL, Cottrell RS, Froehlich HE, Gephart JA, Jacobsen NS, Kuempel CD. Et al. The environmental footprint of global food production. Nature Sustainability. 2022 Oct 24:1-3.

Williams Claire and Philippe Barn茅oud. 2021. Atmospheric trajectory for high-altitude pollen transport and deposition. Aerobiologia 37(2): 333-350. doi: 10.1007/s10453-021-09697-5.
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Williams, Claire and David J. Smith. 2021. Atmospheric biology: a unifying theme for the U.S. scientific community. Ecological Applications 31(3): e02275.
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Williams Claire and Anastasia Makhnykina. 2020. Pollen鈥檚 contribution to Siberia鈥檚 forests. Reforesta 听9: 107-119. doi: 10.21750/REFOR.9.09.83.
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Williams C.G. 2020. Atmospheric layering during peak pine pollen season. Grana 59 (2/3): 1-10. doi: 10.1080/00173134.2020.1737728.

Knapp, M.A., N. Geeraert, K. Kim, and K.L. Knee. 2020. Submarine Groundwater Discharge (SGD) to Coastal Waters of Saipan (Commonwealth of the Northern Mariana Islands, USA): Implications for Nitrogen Sources, Transport and Ecological Effects.听Water听12(11): 3029.

Kroetz, K, GM Luquec, JA Gephart, SL. Jardine, P Lee, K Chicojay Moore, C Cole, A Steinkruger, and CJ Donlan (2020) Consequences of seafood mislabeling for marine populations and fisheries management. Proceedings of the National Academy of Sciences,听.

Davis, KF, S Downs and JA Gephart (2020) Environmental variability and food supply chains: Building resilience into global and local food systems Nature Food, pp. 1-12.White, ER, HE Froehlich, JA Gephart, RS Cottrell, TA Branch, R Agrawal Bejarano and JK Baum (2020) Early effects of COVID鈥19 on US fisheries and seafood consumption. Fish and Fisheries.

Shepon, A, JA Gephart, PJG Henriksson, R Jones, K Murshed-e-Jahan, G Eshel and CD Golden (2020) Reorientation of aquaculture production systems can reduce environmental impacts and improve nutrition security in Bangladesh. Nature Food, 1(10), pp.640-647. Alonzo, M., Dial, R. J., Schulz, B. K., Andersen, H. E., Lewis-Clark, E., Cook, B. D., & Morton, D. C. (2020).

Mapping tall shrub biomass in Alaska at landscape scale using structure-from-motion photogrammetry and lidar.听Remote Sensing of Environment,听245, 111841. Bistline, John ET, Maxwell Brown,听Sauleh A. Siddiqui, and Kathleen Vaillancourt. "Electric sector impacts of renewable policy coordination: A multi-model study of the North American energy system."听Energy Policy听145 (2020): 111707.听

Dumnicka, E., T. Pipan, and D.C. Culver. 2020. Habitats and diversity of subterranean macroscopic freshwater invertebrates: main gaps and future trends.听Water听11:2170. Doi:10.3390/w12082170.

Eisenstadt, Todd and MacAvoy, Stephen.听in production. Climate Change, Science, and the Politics of Shared Sacrifice. Oxford University Press. Final draft submitted 7/10/2020. expected publication date: 1/2021

Fong, D.W.听2019.听Gammarus minus听as a model system for the study of evolution.听听In: pp. 451-458, D.C. Culver and W.B. White (eds.),听Encyclopedia of Caves, 3rd听Edition.听听Elsevier Academic Press, Burlington, Massachusetts.听听

Geeraert N, NM Duprey, S McIlroy, PD Thompson, BR Goldstein, C LaRoche,听K Kim, LJ Raymundo & DM Baker. 2020. The anthropogenic nitrogen footprint of a tropical lagoon: spatial variability in听Padina听未15N.听Pacific Science听74:19-29

Gephart, JA, CD Golden, F Asche, B Belton, C Brugere, HE Froehlich, JP Fry, BS Halpern, CC Hicks, RC Jones, DH Klinger, DC Little, DJ McCauley, SH Thilsted, M Troell and EH Allison (2020) Scenarios for global aquaculture and its role in human nutrition. Reviews in Fisheries Science & Aquaculture, pp.1-17.

Keany, J., M. Christman, M. Milton,听K.L. Knee,听H. Gilbert, and D. Culver. (2019) Distribution and structure of shallow subterranean aquatic arthropod communities in the parklands of Washington, D.C.听Ecohydrology听12(1): e2044.听

Knee, K.L.听and听A. Masker. (2019) Association between unconventional oil and gas (UOG) development and water quality in small streams overlying the Marcellus Shale.听Freshwater Science听38(1) 113-130.听

Kwon MJ, D Baker, C Tudge, K Kim, SE MacAvoy. (2018). Museum collections yield information on nitrogen sources for coastal Gulf of Mexico, North Carolina and Caribbean invertebrates 1850 to 2004.听Journal of Shellfish Research 37(5):1-7.

Pipan, T., M.C. Christman, and D.C. Culver. 2020. Abiotic community constraints in extreme environments: epikarst copepods as a model system.听Diversity听12:269. Doi:10.3390/d120/12071269.

Read, QD, S Brown, AD Cu茅llar, SM Finn, JA Gephart, LT Marston, E Meyer, KA Weitz and MK Muth (2020) Assessing the environmental impacts of halving food loss and waste along the food supply chain. Science of The Total Environment, 712, p.136255.

Siddiqui, Sauleh, Kathleen Vaillancourt, Olivier Bahn, Nadejda Victor, Christopher Nichols,听Charalampos Avraam, and Maxwell Brown. "Integrated North American energy markets under different futures of cross-border energy infrastructure."听Energy Policy听144 (2020): 111658.听

Wilken RL, A Imanalieva, SE MacAvoy, VP Connaughton. (2020). Anatomical and behavioral assessment of larval zebrafish (Danio rerio) reared in Anacostia River water samples. Archives of Environmental Contamination and Toxicology. https://doi.org/10.1007/s00244-020-00707-0

Faculty Labs

  • , Valentina Aquila
  • , Steve Macavoy
  • , Karen Knee

Selected Grants

Barbara Balestra:听$36,591听from Columbia University for 鈥淚ODP Expedition 401 (Mediterranean Atlantic Gateway Exchange).鈥

听

Mike听Alonzo:
Oceana for the project 鈥淎RTIS analysis of DWF and FMFO.鈥

Valentina Aquila received a grant from Michigan Technological University for $66,476 for the project 鈥淭racking volcanic volatiles from magma reservoir to the atmosphere."

Valentina Aquila received a $12,000 grant from National Academies for 鈥淭he Impact of Airport Activity on Local Air Quality.鈥

David Culver received a $29,917 grant from the National Park Service for the project 鈥淭he Amphipod Fauna of Seepage Springs in National Capital Parks East.鈥

Valentina Aquila received an $85,388 grant from NASA for the project 鈥淓stimating the impacts of volcanic aerosol and pyroCb smoke on model forecasts and data assimilation using the GEOS Analysis Increments.鈥

Steve MacAvoy received a $17,000 grant from the Cave Conservancy of the Virginias for 鈥淎ssessing seep amphipod and isopod resilience to environmental warming by metabolic plasticity proxy.鈥

Karen Knee and collaborators at the Smithsonian Environmental Research Center and Washington State University鈥揤ancouver were recently awarded a 3-year, $700,000 grant from the National Science Foundation (NSF) to study emissions of methane, a potent greenhouse gas, from trees.

Mike Alonzo is funded by the National Science Foundation to study how heat and urbanization affect tree physiology.

Barbara Balestra was awarded an 麻豆视频作品Deputy Provost & Dean of Faculty鈥檚 Pilot Grant for the proposal 鈥淓ffects of biofilm biodiversity and biomass on microplastics in the Potomac River鈥澨(Spring 2022), which she is working on with MS student Joe Barnes and BS student Natalie Landaverde.

Jessica Gephart was awarded a $785,000 NSF grant to develop听a global seafood trade network database for sustainable food systems, human health, and nutrition security.

Kiho Kim is co-PI on a $300,000 NSF grant to develop enhanced teaching and learning through problem-based pedagogy. Karen Knee and Barbara Balestra are also participating in this research, which partially focuses on our Habits of Mind class, ENVS 150 (the Nature of Earth).听

Kiho Kim is co-PI on a $800,000 NSF grant entitled 鈥淣oyce Scholar Retention in Racially and Culturally Non-dominant Communities: Partnerships and Persistence.鈥澨

Steve MacAvoy was awarded a $15,000 USGS/WRRI grant to explore how concrete influences the chemistry of suburban streams.听听

Sauleh Siddiqui听and听Kiho Kim听are part of the team of researchers recently awarded a five-year, $15 million grant from the National Science Foundation (NSF). Titled "Multiscale Resilient, Equitable, and Circular Innovations with Partnership and Education Synergies (RECIPES) for Sustainable Food Systems,鈥 the project will study food waste and work toward sustainability and equity in food systems under the leadership of 麻豆视频作品principle investigator,听Siddiqui.

Michael Alonzo (Environmental Science) received a grant for $37,914 from the National Aeronautics and Space Administration (NASA) for his work in improving models of forest ecosystem structure and function through fusion of 3D data derived from stereo imagery and lidar.

Sauleh Siddiqui and Kiho Kim helped lead a $15 million grant awarded to 麻豆视频作品for Multiscale RECIPES (Resilient, Equitable, and Circular Innovations with Partnership and Education Synergies) for Sustainable Food Systems.

Barbara Balestra was awarded an 麻豆视频作品Deputy Provost & Dean of Faculty鈥檚 Pilot Grant for the proposal 鈥淓ffects of biofilm biodiversity and biomass on microplastics in the Potomac River鈥澨(Spring 2022), which she is working on with MS student Joe Barnes and BS student Natalie Landaverde.

Jessica Gephart was awarded a $785,000 NSF grant to develop听a global seafood trade network database for sustainable food systems, human health, and nutrition security.

Kiho Kim is co-PI on a $300,000 NSF grant to develop enhanced teaching and learning through problem-based pedagogy. Karen Knee and Barbara Balestra are also participating in this research, which partially focuses on our Habits of Mind class, ENVS 150 (the Nature of Earth).听

Kiho Kim is co-PI on a $800,000 NSF grant entitled 鈥淣oyce Scholar Retention in Racially and Culturally Non-dominant Communities: Partnerships and Persistence鈥澨

Karen Knee and collaborators at the Smithsonian Environmental Research Center and Washington State University鈥揤ancouver were recently awarded a 3-year, $700,000 grant from the National Science Foundation to study emissions of methane, a potent greenhouse gas, from trees.

Barbara Balestra received a grant for $12,000 from the National Aeronautics and Space Administration (NASA) for her project "Predicting Changes in Ocean Habitability on Earth and Other Ocean Worlds."

Michael Alonzo received a grant for $37,914 from the National Aeronautics and Space Administration (NASA) for his work in improving models of forest ecosystem structure and function through fusion of 3D data derived from stereo imagery and lidar.

Sauleh Siddiqui received a $108,130 grant from National Science Foundation (NSF) March 2021

Aquila, Valentina.听Tracking Volcanic Volatiles From Magma Reservoir to the Atmosphere: Identifying Precursors and Optimizing Models and Satellite Observations for Future Major Eruptions. Michigan Technological University 鈥 $296,026 (3 years)

Alonzo, Michael. (PI) Understanding tree species and site controls on urban transpiration using high resolution spatial analyses. NSF 鈥 $416,000 (3 years, 2020 鈥 2023)

Alonzo, Michael (CO-PI) NASA-USFS Partnership to Advance Operational Forest Carbon Monitoring in Interior Alaska. NASA Carbon Monitoring System 鈥 麻豆视频作品portion: $136,000 (3 years, 2020 鈥 2022).

Aquila, Valentina. (CO-PI): Tracking volcanic gases from magma reservoir to the atmosphere: identifying precursors, and optimizing models and satellite observations for future major eruptions. 2 September 2020 to 11 September 2023. NASA.
Total award:听$1,270,000,听award for AU:听$310K.听

Brakel W, Adjunct Professor of Environmental Science, was elected Chair of the Interstate Commission on the Potomac River Basin (ICPRB; potomacriver.org), effective 09/01/2020.听听He has served on the Commission, representing the District of Columbia, since 2014.

Connaughton, Victoria. (PI). Using zebrafish to assess water health of Paint Branch Stream, an upstream tributary within the Anacostia Watershed鈥, DC Water Resources Research Institute, 2020-2021. USGS/WRRI. $10,000

Culver, David. (PI). A Survey of the Fauna of Seepage Springs in National Capital Parks-East (NACE). 2018-2022. National Park Service. $137,951.听

Gephardt, Jessica (CO-PI) Title: CNH-L: Interactive Dynamics of Reef Fisheries and Human Health (2018-2022). NSF. Award total: 听$1,359,998, award for AU:听$219,214.听

Siddiqui, Sauleh.听$108,130 grant from National Science Foundation.

Knee, Karen and Kim, Kiho. (PIs). Investigating the role of groundwater in pollutant transport to Nu`uuli Pala Lagoon, American Samoa. NOAA. $161,559.00

MacAvoy, Stephen. (PI). Toxicity of organic contaminants in urban and suburban areas of the Anacostia and Potomac Rivers. 2020. USGS/WRRI $10,000

MacAvoy, Stephen. (CO-PI). Next-generation effects-based monitoring of contaminants in the Anacostia and Potomac Rivers. 2020. USGS/WRRI $10,000

Meiller, Jesse and Brody, Michael (CO-PIs). "Central Asia University Partnerships Program" from the American Councils for International Education (State Dept.). January 2020 to June 2021. $22,500.

Siddiqui, Sauleh (PI). Time-Sensitive Human Forest and Model Forecasts for COVID-19 Vaccine and Treatment Trials (Aug 2020 - Aug 2021). NSF
Amount: $200,000

Siddiqui, Sauleh (PI). Human Forests versus Random Forest Models in Prediction (Sep 2019 - Feb 2022). NSF
Amount: $480,000

Siddiqui, Sauleh (PI). EAGER: SSDIM: Generating Synthetic Data on Interdependent Food, Energy, and Transportation Networks via Stochastic, Bi-level Optimization (Aug 2017-Aug 2021). NSF
Amount: $399,874