CONFERENCE ABSTRACTS

Student Lead Authors

Bradley, E., S.M. Natali, N. Golden, E. Bristol. The Long and Short Term Effects of Fire on Phytoplankton and Lake Chemistry of Yup’ik Territory in the Yukon-Kuskokwim Delta. American Geophysical Union, Fall Meeting, Chicago, IL [download pdf]

Davis, D.M., E.M. Bristol, N.A. Golden, S.M. Natali. Carbon Dioxide and Methane Fluxes in the Yukon-Kuskokwim Delta Permafrost. American Geophysical Union, Fall Meeting, Chicago, IL [download pdf]

Frey, M., N.A. Golden, E. Bradley, E.M. Bristol, S.M. Natali. Wildfires and Lake Characteristics May Influence Zooplankton Communities in the Yukon-Kuskokwim Delta, Alaska. American Geophysical Union, Fall Meeting, Chicago, IL [download pdf]

Gomez, S., E.M. Bristol, S.M. Natali, N.A. Golden, R.G. Spencer. The Impacts of Thermokarst and Burn History on the Composition of Dissolved Organic Matter in the Yukon Kuskokwim Delta. American Geophysical Union, Fall Meeting, Chicago, IL [download pdf]

Henkenius, N., N.A. Golden, S.M. Natali. Impact of Tundra Fires on Bird Species Diversity in Lakes of the Yukon–Kuskokwim Delta. American Geophysical Union, Fall Meeting, Chicago, IL [download pdf]

Hernandez, A., S.M. Natali, H.H. Moritz, N.A. Golden, J.G. Ernakovich. Evaluating Post-Fire Changes in Soil Microbial Communities Involved in Nitrogen Cycling in the Arctic Tundra. American Geophysical Union, Fall Meeting, Chicago, IL [download pdf]

Timling, A., G. Fiske, E.M. Bristol, N.A. Golden, C. Solomon, S.M. Natali. Can the Coloration of Lakes in Satellite Imagery be Used to Predict its Biological, Chemical, and/or Physical Properties? American Geophysical Union, Fall Meeting, Chicago, IL [download pdf]

Torres-Martinez, E., E.M. Bristol, N.A. Golden, S.M. Natali. Following the Tundra’s Water: Factors that may influence water movement from plateaus to fens in Yup’ik territory of the Yukon-Kuskokwim Delta, Alaska. American Geophysical Union, Fall Meeting, Chicago, IL [download pdf]

Windholz, T., J. Hung, E. Bradley, N.A. Golden, S.M. Natali. Implications of Thermokarst Landforms on Carbon Cycling in the Yukon Kuskokwim Delta, Alaska. American Geophysical Union, Fall Meeting, Chicago, IL [download pdf]

JOURNAL ARTICLES

Student Lead Authors

Baillargeon, N., G. Pold, S.M. Natali and S.A. Sistla. 2022. Lowland tundra plant stoichiometry is somewhat resilient decades following fire despite substantial and sustained shifts in community structure. Arctic, Antarctic, and Alpine Research, 54:1, 525-536. DOI:10.1080/15230430.2022.2121246

Dabrowski, J.S., M.A. Charette, P.J. Mann, S.M. Ludwig, S.M. Natali, R.M. Holmes, J.D. Schade, M. Powell, and P.B. Henderson. 2020. Using radon to quantify groundwater discharge and methane fluxes to a shallow, tundra lake on the Yukon-Kuskokwim Delta, Alaska. Biogeochemistry 148, 69–89. DOI:10.1007/s10533-020-00647-w

PI Co-Authors

Zolkos, S., E. MacDonald, J.K.Y. Hung, J.D. Schade, S. Ludwig, P.J. Mann, R. Treharne, and S. Natali. 2022. Physiographic controls and wildfire effects on aquatic biogeochemistry in tundra of the Yukon-Kuskokwim Delta, Alaska. Journal of Geophysical Research: Biogeosciences, 127:8, e2022JG006891. DOI:10.1029/2022JG006891

JOURNAL ARTICLE

Student Lead Authors

Dabrowski, J.S., M.A. Charette, P.J. Mann, S.M. Ludwig, S.M. Natali, R.M. Holmes, J.D. Schade, M. Powell, and P.B. Henderson. 2020. Using radon to quantify groundwater discharge and methane fluxes to a shallow, tundra lake on the Yukon-Kuskokwim Delta, Alaska. Biogeochemistry 148, 69–89. DOI:10.1007/s10533-020-00647-w

CONFERENCE ABSTRACTS

Student Lead Authors

Bradley, E., S.M. Natali, J.D. Schade, L. Packer, P.J. Mann, B. Rodriguez-Cardona, L. Deegan,H. Golden, S. Ludwig. The effects of fire on phytoplankton of the Yukon-Kuskokwim Delta, Alaska. American Geophysical Union, Fall Meeting, San Francisco, CA [download pdf]

Baillargeon, N., R. MacArthur, S. Sistla, S.M. Natali, J.D. Schade, S. Ludwig. Vegetation Composition and Nutrients in a Shifting Tundra Fire Regime. American Geophysical Union, Fall Meeting, San Francisco, CA [download pdf]

MacArthur R., N. Baillargeon, S. Sistla, S.M. Natali, J.D. Schade, S. Ludwig, P.J. Mann. The effects of fire in the Yukon-Kuskokwim Delta, AK on vegetation composition, nutrient cycling, and carbon dioxide exchange. American Geophysical Union, Fall Meeting, San Francisco, CA [download pdf]

Duran, G., J.D. Schade, S.M. Natali, S. Ludwig, P.J. Mann, S. Sistla, B. Rodriguez-Cardona, A. Sanders. Effects of Tundra Wildfire on Infiltration Rates and Nitrogen Species in Pore Water. American Geophysical Union, Fall Meeting, San Francisco, CA [download pdf]

Williams, A., S.M. Natali, S. Sistla, P.J. Mann, J.D. Schade. Fire Increases Plant-Mediated Methane Flux in Yukon-Kuskokwim Delta Wetlands. American Geophysical Union, Fall Meeting, San Francisco, CA [download pdf]

Packer, L., B. Rodriguez-Cardona, H. Golden, P.J. Mann, S.M. Natali, S. Sistla, J.D. Schade, L. Deegan, S. Ludwig,Aquatic macroinvertebrate response to fire and substrate type in lakes of the Yukon-Kuskokwim Delta, Alaska. American Geophysical Union, Fall Meeting, San Francisco, CA [download pdf]

Sanders, A., H. Henson, G. Duran, P.J. Mann, S.M. Natali, J.D. Schade, S. Sistla, S. Ludwig, B. Rodriguez-Cardona, R. MacArthurDet. Effects of Thermokarst Events on the Availability and Emissions of CH4, CO2 and N2O in the YK Delta, Alaska. American Geophysical Union, Fall Meeting, San Francisco, CA [download pdf]

Lyles, E., S.M. Natali, S. Ludwig, S.Sistla, J.D. Schade, R. MacArthur, N. Baillargeon. Changes in Berry and Leaf Production Following a Tundra Wildfire. American Geophysical Union, Fall Meeting, San Francisco, CA [download pdf]

Henson, H.C., P.J. Mann, A. Sanders, S.M. Natali, J.D. Schade, S. Ludwig, S. Sistla. Influence of Land Slumping from Permafrost Thaw on Lake Methane Emissions in the Yukon-Kuskokwim Delta. American Geophysical Union, Fall Meeting, San Francisco, CA [download pdf]

Moubarak, M., S.M. Natali, B.M. Rogers, S. Sistla, S. Cooperdock, A.K. Selbmann, S. Ludwig, D.S. Ward. Carbon loss and radiative forcings of gaseous emissions from tundra wildfires during the Yukon-Kuskokwim River Delta 2015 fire season. American Geophysical Union, Fall Meeting, San Francisco, CA [download pdf]

Ludwig, S., R. Commane, G. Fiske, R.M. Holmes, P.J. Mann, S.M. Natali, J.D. Schade, E. Bradley, G. Duran, H. Henson, L. Packer, M. Powell, A. Sanders, A. Williams. Scaling greenhouse gas emissions from freshwaters and identifying methane hotspots in the Yukon-Kuskokwim Delta. American Geophysical Union, Fall Meeting, San Francisco, CA

JOURNAL ARTICLES

Student Lead Authors

Sae-Lim, J., Russell, J. M., Vachula, R. S., Holmes, R. M., Mann, P. J., Schade, J. D., & Natali, S. M. (2019). Temperature-controlled tundra fire severity and frequency during the last millennium in the Yukon-Kuskokwim Delta, Alaska. The Holocene, 29(7), 1223–1233. DOI:10.1177/0959683619838036

CONFERENCE ABSTRACTS

Student Lead Authors

Arvizu, M., S. Natali, J. D. Schade, S. Ludwig. The Impact of Fire, Landscape Position, and Nitrogen Availability on Carbon Dioxide and Methane Emissions in the Yukon-Kuskokwim Delta, Alaska. American Geophysical Union, Fall Meeting, Washington, D.C. [download pdf]

Baillargeon, N., R. MacArthur, S. Natali, J. D. Schade, S. Sistla. 2018. The impacts of fire on plant stoichiometry and nitrogen cycling in the Yukon-Kuskokwim Delta, AK. American Geophysical Union, fall meeting, Washington, D.C. [download pdf]

Dabrowski, J., M. A. Charette, P. J. Mann, S. M. Ludwig, P. B. Henderson, R. M. Holmes. 2018. Quantifying groundwater as a source of nutrients, trace metals, and greenhouse gases to lakes and ponds on the Alaskan tundra. Association for the Sciences of Limnology and Oceanography, summer meeting, Victoria B.C., Canada.

Jimmie, J. A., K. Turner, P. J. Mann, J. D. Schade, S. Natali, G. Fiske. 2018. Investigating physical changes in tundra lakes and ponds in Alaska’s Yukon Kuskokwim Delta using remote sensing and stable isotopes. American Geophysical Union, fall meeting, Washington D.C. [download pdf]

Lehman, A., J. A. Reyes, K. Turner, M. Powell, J. D. Schade, P. J. Mann, S. Natali, S. Sistla, S. Ludwig. Diel Cycling of Methane in Arctic Ponds. American Geophysical Union, Fall Washington, D.C.

Peter, D. L., P. J. Mann, J. D. Schade, S. Natali. 2018. Microbial community composition and functional potential of soil and water microorganisms in the Yukon Kuskokwim Delta, Alaska. American Geophysical Union, fall meeting, Washington D.C. [download pdf]

Powell, M. R. Commane, S. Ludwig, P. J. Mann, J. D. Schade, S. Natali, S. C. Wofsy, G. Fiske. Integration of Ground-based and Airborne Measurements Shows Substantial Methane Emissions from Freshwater Ecosystems in the Yukon-Kuskokwim Delta, Alaska. 2018. American Geophysical Union, Fall Meeting, Washington, D.C. [download pdf]

Turner, K., J. A. Jimmie, A. McElvein, M. Arvizu, S. Natali, G. Fiske, H. U. Biester, P. J. Mann. 2018. Mercury in freshwaters of the Yukon-Kuskokwim Delta, Alaska. 2018. American Geophysical Union, fall meeting, Washington D.C. [download pdf]

Zheng, A., S. Natali, J. D. Schade, S. Sistla, S. Ludwig, P. J. Mann. The impact of fire on energy balance in tundra soils in the Yukon-Kuskokwim Delta, AK: Implications for Permafrost Thaw under Climate Change. 2018. American Geophysical Union, Fall Meeting, Washington, D.C. [download pdf]

MacArthur, R., N. Baillargeon, S. Sistla, S. Natali, J. D. Schade, P. J. Mann, S. Ludwig. 2018. The Recovery of Above Ground Biomass after Fire Occurrence in the Yukon-Kuskokwim Delta, Alaska. American Geophysical Union, Fall Meeting, 10-14 December, Washington, D.C. [download pdf]

McElvein, A., S. Ludwig, G. Fiske, S. Natali, P. J. Mann, S. Melton, J. Sanderman. Mapping Belowground Carbon Pools and Potential Vulnerability in the Yukon-Kuskokwim Delta, Alaska. 2018. American Geophysical Union, Fall Meeting, Washington, D.C. [download pdf]

Student Co-Authors

Ludwig, S., P. J. Mann, S. Natali, J. D. Schade, M. Powell, D. L. Peter, A. Lehman, M. Arvizu, J. A. Jimmie, E. M. Bristol, J. S. Dabrowski, J. A. Reyes. 2018. Arctic Tundra Fire Promotes Increased Greenhouse Gas Emissions from Freshwaters and Changes Methane Hotspot Locations across the Landscape in the Yukon-Kuskokwim Delta. American Geophysical Union, Fall Meeting, Washington, D.C.

PI Authors

Garrett, A. T., F. Carter-Johnson. 2018. Theoretical underpinnings of Arctic science career decisions: the Polaris Project self-efficacy framework. American Geophysical Union, fall meeting, Washington D.C.

Schade, J. D., P. J. Mann, S. Natali, S. Ludwig. Impacts of Fire on Nitrogen Cycling in Aquatic Ecosystems in the Yukon-Kuskokwim Delta, AK. 2018. American Geophysical Union, Fall Meeting, Washington, D.C.

Wood, J.H., S.M. Natali. “Climate Buddies” – Supporting Student Engagement in Authentic Environmental Research While Building Connections Between Middle School Classrooms and Post-Secondary Research Teams Through Science Fair Projects. 2018. American Geophysical Union, Fall Meeting, 10-14 December, Washington, D.C. [download pdf]

JOURNAL ARTICLES

Student Co-Authors

Alexander, H. D., S. M. Natali, M. M. Loranty, S. M. Ludwig, V. V. Spektor, S. Davydov, N. Zimov, I. Trujillo, and M. C. Mack. 2018. Impacts of increased soil burn severity on larch forest regeneration on permafrost soils of for northeastern Siberia. Forest Ecology and Management 417:144–153. DOI:10.1016/j.foreco.2018.03.008

CONFERENCE ABSTRACTS

Student Lead Authors

Bristol E. M., J. S. Dabrowski, J. A. Jimmie, D. L. Peter, R. M. Holmes, P. J. Mann, S. Natali, J. D. Schade. 2017. Role of Fire and Landscape Position on Dissolved Organic Carbon Composition and Reactivity in the Yukon-Kuskokwim Delta, Alaska. American Geophysical Union, fall meeting, New Orleans, Louisiana. [download pdf]

Jardine, L., S. Natali, J. D. Schade, R. M. Holmes, P. J. Mann, H. Pena. 2017. The impact of fire on nitrogen availability in the Yukon Kuskokwim Delta, Alaska. American Geophysical Union, fall meeting, New Orleans, Louisiana. [download pdf]

Jimmie, J. A., P. J. Mann, J. D. Schade, S. Natali, G. Fiske, R. M. Holmes. 2017. Effect of Tundra Fires on Stream Chemistry in Alaska’s Yukon-Kuskokwim Delta. American Geophysical Union, fall meeting, New Orleans, Louisiana. [download pdf]

Kerr, L., H. Steltzer, S. Natali, J. D. Schade, P. J. Mann, R. M. Holmes, S. Melton. 2017. Impacts of Vegetation on CO₂ exchange, permafrost thaw depth, and NDVI in Alaskan tundra. American Geophysical Union, fall meeting, New Orleans, Louisiana. [download pdf]

Navarro-Perez, E., S. Natali, J. D. Schade, R. M. Holmes, P. J. Mann. 2017. The effects of fire on greenhouse gas fluxes from mosses and lichen patches in the Yukon Kuskokwim Delta, AK. American Geophysical Union, fall meeting, New Orleans, Louisiana. [download pdf]

Pena, H., H. D. Alexander, S. Natali, M. M. Loranty, R. M. Holmes, M. C. Mack, J. D. Schade, P. J. Mann, S. P. Davydov, B. Frey, N. Zimov, L. E. Jardine. 2017. Effects of Fire on Understory Vegetation Communities in Siberian Boreal Forests and Alaskan Tundra. American Geophysical Union, fall meeting, New Orleans, Louisiana. [download pdf]

Peter, D. L., E. M. Bristol, P. J. Mann, J. D. Schade, S. Natali, R. M. Holmes. 2017. Fire Effects on Greenhouse Gas Emissions from Wetlands in the Yukon-Kuskokwim Delta, Alaska. American Geophysical Union, fall meeting, New Orleans, Louisiana. [download pdf]

Rodriguez-Cardona, B., J. D. Schade, R. M. Holmes, S. Natali, P. J. Mann, A. Wymore, A. A. Coble, A. S. Prokishkin, P. Zito, D. C. Podgorski, R. G. Spencer, W. H. McDowell. 2017. The role of DOM in nitrogen processing in streams across arctic regions affected by fire. American Geophysical Union, fall meeting, New Orleans, Louisiana. [download pdf]

Sae-lim, J., P. J. Mann, J. M. Russel, S. Natali, R. S. Vachula, J. D. Schade, R. M. Holmes. 2017. Reconstruction of fire history of the Yukon-Kuskokwim Delta, Alaska. American Geophysical Union, fall meeting, New Orleans, Louisiana. [download pdf]

Tobio, A., M. M. Loranty, H. Kropp, H. Pena, H. D. Alexander, S. Natali, A. L. Kholodov, S. Spawn, S. Farmer. 2017. Driving Factors of Understory Evapotranspiration within a Siberian Larch Forest. American Geophysical Union, fall meeting, New Orleans, Louisiana. 

Student Co-Authors

Alexander, H. D., M. M. Loranty, S. Natali, H. Pena, S. Ludwig, V. Spektor, S. P. Davydov, N. Zimov, M. C. Mack. 2017. Linking tree demography to climate change feedbacks: fire, larch forests, and carbon pools of the Siberian Arctic. American Geophysical Union, fall meeting, New Orleans, Louisiana.

Mann, P. J., E. M. Bristol, J. S. Dabrowski, J. A. Jimmie, S. Melton, E. Navarro-Perez, D. L. Peter, N. Sea-lim, R. M. Holmes, S. Natali, J. D. Schade. 2017. Fire increases carbon fluxes from inland waters of the Yukon-Kuskokwim delta, Alaska. American Geophysical Union, fall meeting, New Orleans, Louisiana.

Natali, S., G. Fiske, J. D. Schade, P. J. Mann, R. M. Holmes, S. Ludwig, S. Melton, N. Sae-lim, L. E. Jardine, E. Navarro-Perez. 2017. Mapping Soil Carbon in the Yukon Kuskokwim River Delta Alaska. American Geophysical Union, fall meeting, New Orleans, Louisiana.

Schade, J. D., L. E. Jardine, E. M. Bristol, E. Navarro-Perez, S. Melton, J. A. Jimmie, S. Natali, P. J. Mann, R. M. Holmes. 2017. Impacts of fire on nitrogen cycling in aquatic and terrestrial ecosystems in the Yukon-Kuskokwim River Delta, AK. American Geophysical Union, fall meeting, New Orleans, Louisiana.

PI Authors

Schade, J. D., R. M. Holmes, S. Natali, P. J. Mann, A. G. Bunn, K. E. Frey. 2017. The Polaris Project: Undergraduate Research Catalyzing Advances in Arctic Science. American Geophysical Union, fall meeting, New Orleans, Louisiana. [download pdf]

JOURNAL ARTICLES

Student Lead Authors

Webb, E. E., K. Heard, S. M. Natali, A. G. Bunn, H. D. Alexander, L. T. Berner, A. Kholodov, M. M. Loranty, J. D. Schade, V. Spektor, and N. Zimov. 2017. Variability in above- and belowground carbon stocks in a Siberian larch watershed. Biogeosciences 14:4279–4294. DOI:10.5194/bg-14-4279-2017

Student Co-Authors

Kropp, H., M. Loranty, H. D. Alexander, L. T. Berner, S. M. Natali, and S. A. Spawn. 2017. Environmental constraints on transpiration and stomatal conductance in a Siberian Arctic boreal forest. JGR Biogeosciences 122:487–497. DOI:10.1002/2016JG003709

PI Authors

Stubbins, A., P. J. Mann, L. Powers, T. B. Bittar, T. Dittmar, C. P. McIntyre, T. I. Eglinton, N. Zimov, and R. G. M. Spencer. 2017. Low photolability of yedoma permafrost dissolved organic carbon. JGR Biogeosciences 122:200–211. DOI:10.1002/2016JG003688

JOURNAL ARTICLES

Student Lead Authors

Curasi, S. R., M. M. Loranty, and S. M. Natali. 2016. Water track distribution and effects on carbon dioxide flux in an eastern Siberian upland tundra landscape. Environmental Research Letters 11:045002. DOI:10.1088/1748-9326/11/4/045002

Student Co-Authors

Loranty, M. M., W. Lieberman-Cribbin, L. T. Berner, S. M. Natali, S. J. Goetz, H. D. Alexander, and A. L. Kholodov. 2016. Spatial variation in vegetation productivity trends, fire disturbance, and soil carbon across arctic-boreal permafrost ecosystems. Environmental Research Letters. 11:095008. DOI:10.1088/1748-9326/11/9/095008

Schade, J. D., E. C. Seybold, T. Drake, S. Spawn, W. V. Sobczak, K. E. Frey, R. M. Holmes, and N. Zimov. 2016. Variation in summer nitrogen and phosphorus uptake among Siberian headwater streams. Polar Research 35:24571. DOI:10.3402/polar.v35.24571

PI Authors

Frey, K. E., W. V. Sobczak, P. J. Mann, and R. M. Holmes. 2016. Optical properties and bioavailability of dissolved organic matter along a flow-path continuum from soil pore waters to the Kolyma River mainstem, East Siberia. Biogeosciences 13:2279–2290. DOI:10.5194/bg-13-2279-2016

JOURNAL ARTICLES

Student Lead Authors

Berner, L. T., H. D. Alexander, M. M. Loranty, P. Ganzlin, M. C. Mack, S. P. Davydov, and S. J. Goetz. 2015. Biomass allometry for alder, dwarf birch, and willow in boreal forest and tundra ecosystems of far northeastern Siberia and north-central Alaska. Forest Ecology and Management 337:110–118. DOI:10.1016/j.foreco.2014.10.027

Broderick, D. E., K. E. Frey, J. Rogan, H. D. Alexander, and N. S. Zimov. 2015. Estimating upper soil horizon carbon stocks in a permafrost watershed of Northeast Siberia by integrating field measurements with Landsat-5 TM and WorldView-2 satellite data. GIScience & Remote Sensing 52:131–157. DOI:10.1080/15481603.2015.1010434

Spawn, S., S. Dunn, G. Fiske, S. Natali, J. Schade, and N. Zimov. 2015. Summer methane ebullition from a headwater catchment in Northeastern Siberia. Inland Waters 5:224–230. DOI:10.5268/IW-5.3.845

PI Authors

Mann, P. J., T. I. Eglinton, C. P. McIntyre, N. Zimov, A. Davydova, J. E. Vonk, R. M. Holmes, and R. G. M. Spencer. 2015. Utilization of ancient permafrost carbon in headwaters of Arctic fluvial networks. Nature Communications 6. DOI:10.1038/ncomms8856

Spencer, R. G. M., P. J. Mann, T. Dittmar, T. I. Eglinton, C. McIntyre, R. M. Holmes, N. Zimov, and A. Stubbins. 2015. Detecting the signature of permafrost thaw in Arctic rivers. Geophysical Research Letters 42:2830–2835. DOI:10.1002/2015GL063498

Vonk, J. E., S. E. Tank, P. J. Mann, R. G. M. Spencer, C. C. Treat, R. G. Striegl, B. W. Abbott, and K. P. Wickland. 2015. Biodegradability of dissolved organic carbon in permafrost soils and aquatic systems: a meta-analysis. Biogeosciences 12:6915–6930. DOI:10.5194/bg-12-6915-2015

CONFERENCE ABSTRACTS

Student Lead Authors

Behnke, M. I., J. D. Schade, G. J. Fiske, K. A. Whittinghill, N. Zimov. 2014. Patterns of DOC concentration and composition in tundra watersheds in the Kolyma river basin. [download pdf]

Connolly, C. T., S. A. Spawn, S. Ludwig, J. D. Schade, S. Natali. 2014. The Effects of permafrost thaw on organic matter quality and availability along a hill slope in Northeastern Siberia. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Curasi, S. R., L. R. Weber, M. M. Loranty. 2014. Effects of landscape position on carbon cycling in Siberian Arctic tundra. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Golden, N. A., S. Natali, N. Zimov. 2014. Consequences of arctic ground squirrels on soil carbon loss from Siberian tundra. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Han, P. D., S. Natali, J. D. Schade, N. Zimov, S. Zimov. 2014. Effects of conversion from boreal forest to arctic steppe on soil communities and ecosystem carbon pools. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Kuhn, M. A., J. Eason, S. Dunn. S. A. Spawn. J. D. Schade. 2014. Topographic variation and methane production in Siberian Arctic tundra. [download pdf]

Oshurkova, V., A. L. Kholodov, V. Spektor, V. Sherbakova, E. Rivkina. 2014. The effect of sedimentation conditions of frozen deposits at the Kolyma lowland on the distribution of methane and microorganisms activity. American Geophysical Union, fall meeting, San Francisco, California.

Ramos, E., H. D. Alexander, S. Natali. 2014. Effects of disturbances on vegetation composition and permafrost thaw on boreal forests and tundra ecosystems in the Siberian Arctic. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Spawn, S. A., S. Dunn, G. J. Fiske, J. D. Schade, N. Zimov. 2014. Ebullition of CO₂ and CH₄ from an upland stream network in Northeastern Siberia. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Theberge, J., J. D. Schade, G. J. Fiske, M. M. Loranty, N. Zimov. 2014. Changes in dissolved carbon and nitrogen along a hill slope flow path in Siberian Arctic tundra. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Weber, L. R., H. Pena, S. R. Curasi, E. Ramos, M. M. Loranty, H. D. Alexander, S. Natali. 2014. Above and below ground carbon stocks in Northeast Siberia tundra ecosystems: a comparison between disturbed and undisturbed areas. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Student Co-Authors

Loranty, M. M., L. T. Berner, H. D. Alexander, S. P. Davydov. 2014. Variability in canopy transpiration with atmospheric drivers and permafrost thaw depth in an Arctic Siberian Larch forest. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Schade, J. D., S. Natali, S. A. Spawn, S. Sistla, E. A. G. Schuur. 2014. Impacts of warming and drying on microbial activity in subarctic tundra soils: inferences from patterns in extracellular enzyme activity. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Spektor, V., J. Vonk, A. L. Kholodov, S. A. Spawn, V. B. Spektor, V. V. Andreeva, S. Natali. 2014. Isotopic content of ground ice in the lower Kolyma river valley (Eastern Siberia). American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Wood, J. H., S. Natali, J. D. Schade, G. J. Fiske, C. Linder, E. Ramos, L. R. Weber, M. A. Kuhn. 2014. Polaris undergraduates connecting with K-12 students through story telling-learning about climate change using web-mapping based investigations. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

PI Authors

Alexander, H.D., M. C. Mack, S. Natali, M. M. Loranty, S. Davydov, N. Zimov. 2014. Changing boreal fire regimes: impacts on permafrost soils and forest succession in Siberian larch forests. American Geophysical Union, fall meeting, San Francisco, California.

Davydov, S., A. Davydov, R. Makarevich, M. M. Loranty, G. Boeskorov. 2014. High-latitude steppe vegetation and the mineral nutrition of Pleistocene herbivores. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Natali, S., H. D. Alexander, S. Davydov, M. M. Loranty, M. C. Mack, N. Zimov. 2014. Effects of fire on ecosystem carbon exchange in Siberian larch forest. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Wood, J. H., S. Natali. 2014. Exploring patterns of soil organic matter decomposition with students and the public through the global decomposition project (GDP). American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

JOURNAL ARTICLES

Student Co-Authors

Mann, P. J., W. V. Sobczak, M. LaRue, E. Bulygina, A. Davydova, J. E. Vonk, J. Schade, S. Davydov, N. Zimov, R. M. Holmes, R. G. M. Spencer. 2014. Evidence for key enzymatic controls on metabolism of arctic river organic matter. Global Change Biology. DOI:10.1111/gcb.12416

Perminova, I. V., I. V. Dubinenkov, A. S. Kononikhin, A. I. Konstantinov, A. Y. Zherebker, M. A. Andzhushev, E. Bulygina, R. M. Holmes, Y. I. Kostyukevich, I. A. Popov, E. N. Nikolaev. 2014. Molecular mapping of sorbent selectivities with respect to isolation of Arctic dissolved organic matter as measured by Fourier transform mass spectrometry. Environmental Science & Technology. DOI:10.1021/es5015423

PI Authors

Petrese, F. J., E. Vonk, R. M. Holmes, L. Giosan, N. Zimov, T. I. Eglinton. 2014. Branched glycerol dialkyl glycerol tetraethers in Arctic lake sediments: Sources and implications for paleothermometry at high latitudes. JGR Biogeosciences. DOI:10.1002/2014JG002639

THESES

Berman, Samuel. Thermokart lake dissolved organic carbon storage near Cherskiy, Northeast Siberia. Senior Thesis, Clark University, May 2014.

Heard Kathryn. Systematic analysis of terrestrial carbon stocks in a small catchment of the Kolyma watershed. M.S. in Environmental Science, Western Washington University, May 2014.

CONFERENCE ABSTRACTS

Student Lead Authors

Berman, S. L., K. E. Frey. 2013. Thermokarst Lake Analysis and Comparison in Cherskiy, Northeast Siberia. Association of American Geographers Annual Meeting, Los Angeles, California. ** R.S. Tarr Student Illustrated Paper Award, AAG Cryosphere Specialty Group.

Berman, S. L., K. E. Frey, C. G. Griffin, N. Zimov. 2013. Thermokarst Lake Carbon Storage and Transport near Cherskiy, Northeast Siberia. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Berner, L. T., P. Beck, A. G. Bunn, S. J. Goetz. 2013. Impacts of climate change on plant productivity in the Cajander larch woodlands of northeastern Eurasia. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Connolly, C. T., K. L. Sather, S. Ludwig, J. D. Schade, W.V. Sobczak, P. J. Mann. 2013. Organic matter biolability and enzyme activities within stream benthic sediments in northeastern Siberia. American Geophysical Union, fall meeting, San Francisco, California.

Han, P. D., J. D. Schade, P. J. Mann, S. Natali, N. Zimov. 2013. Linking Composition of Extractable Carbon from Active Layer Soils with Thaw Depth. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Lebedev, V., M. M. Loranty, A. L. Kholodov, V. Spektor. 2013. Applicability of resistivity surveys for examination of heterogeneity in continuous permafrost. American Geophysical Union, fall meeting, San Francisco, California.

Ludwig, S., H. D. Alexander, P. J. Mann, S. Natali, J. D. Schade. 2013. Fire Effects on Microbial Dynamics and C, N, and P Cycling in Larch Forests of the Siberian Arctic. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Mayer, D., K. Frey. 2013 Spatial variability of dissolved organic matter in lakes and streams of the lower Kolyma River drainage basin, East Siberia, using high spatial resolution satellite image data. New England-St. Lawrence Valley Geographical Society, Annual Meeting.

Sather, K. L., C. T. Connolly, P. J. Mann, J. D. Schade. 2013. Stream sediment flux responses to varied permafrost carbon composition in the Siberian Arctic. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Squires, E., H. Rodenheizer, S. M. Natali, P. J. Mann. 2013. Feedbacks Between Microenvironment and Plant Functional Type and Implications for CO₂ Flux in Arctic Ecosystems. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

van Winden, E., C. J. Sapart, T. Roeckmann, J. E. Vonk, C. van der Veen, J. D. Schade, L. Lynch, N. Zimov. 2013. Constraining methane formation/removal pathways with stable isotopes in different aquatic environments throughout the summer season in the Kolyma Region, North-East Siberia. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Student Co-Authors

Loranty, M. M., L. T. Berner. 2013. Vegetation controls on carbon, water, and energy dynamics with implications for permafrost thaw. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Natali, S. M., L. T. Berner, A. G. Bunn, S. Davidov, P. Han, K. Heard, A. L. Kholodov, M. M. Loranty, P. J. Mann, J. D. Schade, S. Shin, S. A. Spawn, V. V. Spektor, E. E. Webb, N. Zimov, S. Zimov. 2013. Permafrost carbon pools in a larch-dominated watershed in northeast Siberia. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Spektor, V., A. L. Kholodov, S. A. Spawn, J. D. Schade, S. Natali, S. Davydov, E. Bulygina, G. Khokhlova. 2013. Permafrost Organic Matter Study in the Lower Kolyma Lowland (Eastern Siberia) Based on Drilling Record. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Spektor, V.V., A. L. Kholodov, E. B. Bulygina, S. A. Spawn, S. Davydov, I. V. Klimova. 2013. Yedoma of the Lower Kolyma: New Insight on Palaeoenvironment // International Conference “Earth Cryology: XXI century”, Puschino 29 Sept-3Oct. 2013. P. 53-54.

PI Authors

Alexander, H. D., S. Davydov, N. Zimov, M. C. Mack. 2013. High severity experimental burns in Siberian larch forests increase permafrost thaw and larch tree regeneration. American Geophysical Union, fall meeting, San Francisco, California.

Kholodov A., D. Gilichinsky, A. Abramov, A. Lupachev, S. Davydov, V. Romanovsky, S. Natali. 2013. Thermal state of permafrost in the Northern Yakutia: modern dynamics and spatial variability. European Geoscience Union general assembly, Vienna, Austria. [download pdf]

Mann, P. J., J. E. Vonk, C. McIntyre, L. Wacker, T. I. Eglington, R. M. Holmes, R. G. M. Spencer. 2013. Susceptibility of ancient organic carbon to rapid turnover in arctic streams and rivers. Association of the Sciences of Limnology and Oceanography (ASLO) meeting, New Orleans, Louisiana. [download pdf]

Peucker-Ehrenbrink, B., R. M. Holmes, T. I. Eglinton, R. G. M. Spencer, V. Galy, Z. A. Wang, M. Coolen, P. J. Mann, B. Voss, J. E. Vonk. 2013. Building the global rivers observatory. Association of the Sciences of Limnology and Oceanography (ASLO) meeting, New Orleans, Louisiana. [download pdf]

Spencer, R. G. M., 2013. The utility of CDOM for improving land to ocean terrigenous dissolved organic carbon fluxes. Association of the Sciences of Limnology and Oceanography (ASLO) meeting, New Orleans, Louisiana. [download pdf]

Vonk, J., S. E. Tank, R. G. M. Spencer, P. Mann, R. G. Striegl, C. C. Treat, K. P. Wickland. 2013. Circum-arctic biodegradability of fluvial dissolved organic carbon: A meta-analysis. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Vonk, J. E., R. G. M. Spencer, P. J. Mann, F. Peterse, X. Feng, R. M. Holmes, T. I. Eglinton. 2013. Molecular insights into seasonal patterns of particulate organic matter release in three major arctic rivers. Association of the Sciences of Limnology and Oceanography (ASLO) meeting, New Orleans, Louisiana. [download pdf]

JOURNAL ARTICLES

Student Lead Authors

Berner, L., P Beck, A.G. Bunn, S.J. Goetz. 2013. Plant response to climate change along the forest‐tundra ecotone in northeastern Siberia. Global Change Biology. DOI:10.1111/gcb.12304

Denfeld, B. A., K. E. Frey, W. V. Sobczak, P. J. Mann, R. M. Holmes. 2013. Summer CO₂ evasion from streams and rivers in the Kolyma River basin, north-east Siberia. Polar Research 32, 19704. DOI:10.3402/polar.v32i0.19704

Student Co-Authors

Bunn, A.G., Hughes, M.K., Kirdyanov, A.V., Losleben, M., Shishov, V.V., Berner L.T., Oltchev, A., E.A. Vaganov. 2013. Comparing forest measurements from tree rings and a space-based index of vegetation activity in Siberia. Environmental Research Letters. DOI:10.1088/1748-9326/8/3/035034

Vonk, J. E., P. J. Mann, K. L. Dowdy, A. Davydova, S. Davydov, N. Zimov, R. G. M. Spencer, E. B. Bulygina, T. I. Eglinton, R. M. Holmes. 2013. Dissolved organic carbon loss from Yedoma permafrost amplified by ice wedge thaw. Environmental Research Letters 8. DOI:10.1088/1748-9326/8/3/035023

PI Authors

Holmes, R. M., M. T. Coe, G.J. Fiske, T. Gurtovaya, J. W. McClelland, A. I. Shiklomanov, R. G. M. Spencer, S. E. Tank, A. V. Zhulidov. 2013. Climate change impacts on the hydrology and biogeochemistry of Arctic Rivers, in Global Impacts of Climate Change on Inland Waters, edited by C. R. Goldman, M. Kumagai, and R. D. Robarts, Wiley. DOI:10.1002/9781118470596

Vonk, J. E., P. J. Mann, S. Davydov, A. Davydova, R. G. M. Spencer, J. Schade, W. V. Sobczak, N. Zimov, S. Zimov, E. Bulygina, T. I. Eglinton, R. M. Holmes. 2013. High biolability of ancient permafrost carbon upon thaw. Geophysical Research Letters 40. DOI:10.1002/grl.50348

Xu, L. Myneni, R.B., Chapin III, F.S., Callaghan, T.V., Pinzon, J.E., Tucker, C.J., Zhu Z., Bi, J., Ciais, P., Tømmervik, H., Euskirchen, E.S., Forbes, B.C., Piao, S.L., Anderson, B.T. Ganguly, Nemani, S., Goetz, S.J., Beck, P., Bunn, A.G., Cao, C., and J.C. Stroeve. 2013. Temperature and vegetation seasonality diminishment over northern lands. Nature Climate Change. DOI:10.1038/nclimate1836

THESES

Broderick, Dylan. Below ground carbon storage in the Kolyma River basin, East Siberia, estimated through in situ and satellite observations. M.A. in Geography, Clark University, May 2013.

CONFERENCE ABSTRACTS

Student Lead Authors

Borgen, M., R. G. M. Spencer, P. J. Mann, J. E. Vonk, E. Bulygina, R. M. Holmes. 2012. Composition and biolability of dissolved organic matter leached from the dominant endmembers of the Siberian Arctic. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Dowdy, K. I., J. E. Vonk, P. J. Mann, N. Zimov, E. Bulygina, A. Davydova, R. G. M. Spencer, R. M. Holmes. 2012. Ancient Yedoma carbon loss: primed by ice wedge thaw? American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Drake, T. W., R. G. M. Spencer, K. P. Wickland, R. G. Striegl, D. M. McKnight, R. M. Holmes. 2013. Biodegradability and turnover of permafrost-derived organic carbon. Association of the Sciences of Limnology and Oceanography (ASLO) meeting, New Orleans, Louisiana.

Griffin, C. G., J. W. McClelland, K. E. Frey, R. M. Holmes. 2012. Quantifying and correcting the impacts of freezing samples on dissolved organic matter absorbance. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Ludwig, S., H. D. Alexander, E. Bulygina, P. J. Mann, S. Natali. 2012. Fire Effects on Microbial Enzyme Activities in Larch Forests of the Siberian Arctic. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Taber, E., M. M. Loranty, S. Natali. 2012. Understory vegetation controls on terrestrial carbon flux in an Arctic boreal forest underlain by continuous permafrost. American Geophysical Union, fall meeting, San Francisco, California.

Student Co-Authors

Kholodov A., S. Natali, V. Spektor, S. Davydov, S. Zimov, V. Andreeva. 2012. Influence of ecosystem conditions on permafrost temperature dynamics of the lower Kolyma region. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Spektor, V., A. L. Kholodov, E. Bulygina, V. Andreeva, D. Broderick, S. A. Spawn, S. Natali, A. Davydova. 2012. Preliminary results of the permafrost carbon study in the lower Kolyma lowland (Eastern Siberia) based on drilling record. American Geophysical Union, fall meeting, San Francisco, California.

Ganzlin, P. H. D. Alexander, B. Petronio, S. Natali, S. P. Davydov. 2012. Implications of fire-mediated changes in larch forest structure on leaf litter inputs, organic layer accumulation, and permafrost dynamics. American Geophysical Union, fall meeting, San Francisco, California.

Alexander, H. D., S. P. Davydov, N. Zimov, M. M. Loranty, B. Petronio, P. Ganzlin, L. Berner, M. C. Mack. 2012. High severity experimental burns in Siberian larch forests lead to rapid permafrost thaw. American Geophysical Union, fall meeting, San Francisco, California.

PI Authors

Davydova, A., Vonk, J. E., Mann, P. J., Davydov, S., Spencer, R. G. M., Bulygina, E., Eglinton, T. I., Holmes, R. M. 2012. The “Arctic autumn freshet”: assessing fluxes of fluvial organic matter exported during the period of maximum permafrost thaw. American Geophysical Union, fall meeting, San Francisco, California. [download pdf]

Sobczak, W. V. and R. M. Holmes. 2012. Undergraduate education and research opportunities in the Siberian Arctic: The Polaris Project. Ecological Society of America Annual Meeting. Portland, Oregon.

JOURNAL ARTICLES

Student Lead Authors

Berner, L. T., P. S. A. Beck, M. M. Loranty, H. D. Alexander, M. C. Mack, S. J. Goetz. 2012. Cajander larch( Larix cajanderi) biomass distribution, fire regime and post fire recovery in northeastern Siberia. Biogeosciences 9:3943-3950. DOI:10.5194/bg-9-3943-3950

PI Authors

Bond-Lamberty, B., A. G. Bunn, A.M. Thomson. 2012. Forest browning and large-scale lag effects drive recent trends in high-latitude soil respiration. PLoS ONE. DOI:10.1371/journal.pone.0050441

Holmes, R. M., J. W. McClelland, B. J. Peterson, S. E. Tank, E. Bulygina, T. I. Eglinton, V. V. Gordeev, T. Y. Gurtovaya, P. A. Raymond, D. J. Repeta, R. Staples, R. G. Striegl, A. V. Zhulidov, S. A. Zimov. 2012. Seasonal and annual fluxes of nutrients and organic matter from large rivers to the Arctic Ocean and surrounding seas. Estuaries and Coasts 35:369-382. DOI:10.1007/s12237-011-9386-6

Mann, P. J., A. Davidova, N. Zimov, R. G. M. Spencer, S. Davidov, E. Bulygina, S. Zimov, R. M. Holmes. 2012. Controls on the composition and lability of dissolved organic matter in Siberia’s Kolyma River basin. Journal of Geophysical Research 117, G01028. DOI:10.1029/2011JG001798

THESES

Broderick, D. Using Landsat-5 TM and field data for land cover classification and terrestrial carbon stock estimation along the Kolyma River near Cherskiy, Russia. Senior Thesis, Clark University, May 2012. [download pdf]

CONFERENCE ABSTRACTS

 Student Lead Authors

Andzhushev, M., I. Dubinenkov, A. Konstantinov, K. Hatfield, E. Bulygina, R. M. Holmes, I. V. Permionova. 2011. Isolation of diverse structural compartments of natural organic matter from the Kolyma River watershed in East Siberia. American Geophysical Union, fall meeting, San Francisco, California.

Denfeld, B., K. Frey, W. Sobczak, R. M. Holmes. 2011. Outgassing of CO₂ from streams and rivers in the Kolyma River basin, northeast Siberia. Association of American Geographers, Seattle, Washington.

Dubinenkov, I. V., I. V. Perminova, A. S. Kononikhin, N. Hertkorn, E. Bulygina, R. M. Holmes. 2011. Aliphatic side chains of proteins as potential geomarkers of NOM liberated from melting permafrost and discharged to the Arctic Ocean by the Kolyma River runoff. American Geophysical Union, fall meeting, San Francisco, California.

Dunn, S., A. G. Bunn, J. D. Schade. 2011. Response of soil microbial respiration to varying temperature and moisture in three soils from the Siberian Arctic. American Geophysical Union, fall meeting, San Francisco, California.

Griffin, C. G., J. W. McClelland, R. M. Holmes, K. E. Frey, J. E. Vonk. 2011. Variations in CDOM concentration and quality during the spring freshet on the Mackenzie River. American Geophysical Union, fall meeting, San Francisco, California.

Ludwig, S., A. G. Bunn, J. D. Schade. 2011. Soil carbon distribution along a hill slope in the Siberian Arctic. American Geophysical

Henriksen, E. H., J. E. Vonk, J. D. Schade, K. Bulygina, W. Sobczak, S. A. Zimov, R. M. Holmes. 2011. A comparison of lakes in the Kolyma River region that receive inputs of Holocene and Pleistocene origin. American Geophysical Union, fall meeting, San Francisco, California.

Mayer, D. P. and K. E. Frey. 2011. Measuring seasonal variations of East Siberian thermakarst lake areas using PALSAR data. American Geophysical Union, fall meeting, San Francisco, California.

Rhoades, E., L. Lynch, J.C. Ortega, J. Schade, R. M. Holmes, P. Mann, J. Vonk. 2011. Microbial activitiy and biogeochemical cycling in first-order Russian Arctic streams. American Geophysical Union, fall meeting, San Francisco, California.

Tachihara, B., C. Linder, and R. M. Holmes. 2011. Carbon, climate, and cameras: showcasing arctic research through multimedia storytelling. American Geophysical Union, fall meeting, San Francisco, California.

Student Co-Authors

Spektor, V., J. Heslop, S. Davydov, S. Chandra, I. Klimova, N. Bakulina, E. B. Bulygina. 2011. On the genesis of Lower Kolyma Yedoma based on multidisciplinary approach. American Geophysical Union, fall meeting, San Francisco, California.

PI Authors

Davydov, S., J. E. Vonk, P. J. Mann, A. Davydova, W. V. Sobczak, J. Schade, E. Bulygina, S. Zimov, R. M. Holmes. 2011. Reactivity of Pleistocene aged organic matter in the Siberian Arctic. American Geophysical Union, fall meeting, San Francisco, California.

Davydova, A., P. J. Mann, J. E. Vonk, S. Davydov, E. B. Bulygina, R. G. Spencer, S. A. Zimov, R. M. Holmes. 2011. The age, source, and composition of arctic riverine organic matter exported during the fall onset of freezing. American Geophysical Union, fall meeting, San Francisco, California.

Holmes, R. M, E. Bulygina, J. E. Vonk, S. Davydov, A. Davidova, P. Mann, R. Spencer, N. Zimov, S. Zimov. 2011. Mobilization and processing of ancient organic matter from thawing permafrost in the Siberian Arctic. American Geophysical Union, fall meeting, San Francisco, California.

Linder, C., R. M. Holmes. 2011. Say What? The role of audio in multimedia video. American Geophysical Union, fall meeting, San Francisco, California.

Mann, P. J., W. Sobczak, J. E. Vonk, A. Davydova, J. Schade, E. Bulygina, S. Davydov, N. Zimov, R. M. Holmes. 2011. Enzymatic regulation of organic matter metabolism in Siberia’s Kolyma River watershed. American Geophysical Union, fall meeting, San Francisco, California.

Tank, S. E., P. A. Raymond, B. J. Peterson, R. M. Holmes, J. W. McClelland, R. G. Striegl. 2011. Dissolved inorganic carbon in the world’s circumpolar watersheds. American Society of Limnology and Oceanograpy Aquatic Sciences Meeting, San Juan, Puerto Rico.

JOURNAL ARTICLES

Student Lead Authors

Berner, L., P. Beck, A. G. Bunn, A. H. Lloyd, S.J. Goetz. 2011. High-latitude tree growth and satellite vegetation indices: Correlations and trends in Russia and Canada (1982-2008). JGR Biogeosciences. DOI:10.1029/2010JG001475

Griffin, C. G., K. E. Frey, J. Rogan, R. M. Holmes. 2011. Spatial and interannual variability of dissolved organic matter in the Kolyma River, East Siberia, observed using satellite imagery. Journal of Geophysical Research 116, G03018. DOI:10.1029/2010JG001634

Student Co-Authors

Lloyd A. H., A. G. Bunn, L. Berner. 2011. A latitudinal gradient in tree growth response to climate warming in the Siberian taiga. Global Change Biology. DOI:10.1111/j.1365-2486.2010.02360.x

THESES

Lewis, Kate. Microbial respiration and DOC composition in leachates from modern, Holocene and Pleistocene soils from the Kolyma River basin in Eastern Siberia. Huxley College Senior Thesis, Western Washington University, March 2011. [download pdf]

Wilbert, Max. Siberian Summer. Huxley College Senior Thesis, Western Washington University, February 2011. [download pdf]

CONFERENCE ABSTRACTS

Student Lead Authors

Berner, L., A. Bunn, A. Lloyd, P. Beck. 2010. Remote monitoring of high-latitude conifer growth using the satellite-derived normalized difference vegetation index. State of the Arctic Conference, Miami, Florida.

Denfeld, B. A., K. E. Frey, E. K. Bulygina, T. Drake, R. M. Holmes, J. D. Schade, W. V. Sobczak, N. Zimov. 2010. Carbon processing in the Kolyma River watershed and the role it plays in CO₂ outgassing. American Geophysical Union, fall meeting, San Francisco, California.

Denfeld, B., K. Frey, E. Bulygina, S. Chandra, S. Davydov, R. Holmes, J. Schade, W. Sobzcak, V. Spektor, K. Walter, S. Zimov. 2010. State of the Arctic Conference, Miami, Florida.

Drake, T., E. Seybold, E. Bulygina, A. Bunn, S. Chandra, S. Davydov, K. Frey, R. Holmes, J. Schade, W. Sobczak, V. Spektor, K. Walter-Anthony, Z. Zimov. 2010. State of the Arctic Conference, Miami, Florida.

Drake, T., N. Zimov, B. A. Denfeld, E. C. Seybold, J. D. Schade, E. B. Bulygina, R. M. Holmes, W. V. Sobczak. 2010. High mid-summer CO₂ concentrations and evasion from headwater streams of the Kolyma River basin, Siberia. American Geophysical Union, fall meeting, San Francisco, California.

Dubinenkov, I. V., I. V. Perminova, E. B. Bulygina, R. M. Holmes, S. Davydov, P. J. Mann, J. Vonk, S. A. Zimov. 2010. Isolation of dissolved organic matter from permafrost soil and freshwater environments of the Kolyma River basin, East Siberia, for high resolution structural analysis. American Geophysical Union, fall meeting, San Francisco, California.

Dunn, S., N. Zimov, J. D. Schade, E. B. Bulygina, R. M. Holmes, S. Chandra, V. Spektor, S. A. Zimov, W. V. Sobczak, A. Davydova. 2010. Spatial variation in soil nutrient concentrations and microbial activity in the Kolyma River basin in Eastern Siberia. American Geophysical Union, fall meeting, San Francisco, California.

Griffin, C., K. Frey, E. Bulygina, A. Bunn, S. Chandra, S. Davydov, R. Holmes, J. Schade, W. Sobczak, V. Spektor, K. Walter-Anthony, S. Zimov. 2010. State of the Arctic Conference, Miami, Florida.

Griffin, C., K. Frey, J. Rogan. 2010. Modeling dissolved organic matter in northeastern Siberia using satellite imagery. American Association of Geographers meeting, Washington, D.C.

Griffin, C. G., K. E. Frey, J. Rogan, R. M. Holmes. 2010. Late summer variability of dissolved organic matter in the Kolyma River observed using satellite imagery. American Geophysical Union, fall meeting, San Francisco, California.

Henson, K. M. Janicek, S. Chandra, A. Bunn, E. Bulygina, S. Davydov, K. Frey, R. Holmes, J. Schade, W. Sobczak, V. Spektor, K. Walter-Anthony, and S. Zimov. 2010. State of the Arctic Conference, Miami, Florida.

Heslop, J., S. Chandra, W. V. Sobczak, V. Spektor, A. Davydova, R. M. Holmes, E. B. Bulygina, J. D. Schade, K. E. Frey, A. G. Bunn, K. Walter-Anthony, S. A. Zimov, N. Zimov. 2010. Quantifying carbon bioavailability in northeast Siberian soils. American Geophysical Union, fall meeting, San Francisco, California.

Hough, M., E. Bulygina, A. Bunn, S. Chandra, S. Davydov, K. Frey, R. M. Holmes, J. Schade, W. Sobczak, V. Spektor, K. Walter, S. Zimov. 2010. State of the Arctic Conference, Miami, Florida.

Lewis, K., J. D. Schade, W. V. Sobczak, R. M. Holmes, N. Zimov, E. B. Bulygina, S. Chandra, A. G. Bunn, L. Russell-Roy, E. C. Seybold. 2010. Microbial respiration and DOC composition in leachates from Holocene and Pleistocene soils from the Kolyma River basin in Eastern Siberia. American Geophysical Union, fall meeting, San Francisco, California.

Robbins, M. L., A. Crowley, W. V. Sobczak, R. M. Holmes. 2010. Determining the impact of temporal and spatial conditions on dissolved organic decomposition in the Kolyma River watershed. American Geophysical Union, fall meeting, San Francisco, California.

Russell-Roy, L., P. J. Mann, E. B. Bulygina, J. D. Schade, W. V. Sobczak, N. Zimov, R. M. Holmes. 2010. Bio- and Photodegradation of DOM from lakes, streams, and rivers within the Kolyma River watershed, Northeast Siberia. American Geophysical Union, fall meeting, San Francisco, California.

Seybold, E., T. Drake, J. Schade, E. Bulygina, A. Bunn, S. Chandra, S. Davydov, K. Frey, R. Holmes, W. Sobczak, V. Spektor, K. Walter-Anthony, S. Zimov. 2010. State of the Arctic Conference, Miami, Florida.

Seybold, E. C., J. D. Schade, T. W. Drake, E. B. Bulygina, S. Chandra, R. M. Holmes, W. V. Sobczak, N. Zimov. 2010. Landscape variations in N and P uptake in streams in the Kolyma River basin. American Geophysical Union, fall meeting, San Francisco, California.

Zapatka, B., K. E. Frey. 2010. Using Landsat and radar satellite data to assess burn severity of two fires in East Siberia using a differenced normalized burn ratio approach. State of the Arctic Conference, Miami, Florida.

Student Co-Authors

Chandra, S., J. Heslop, W. V. Sobczak, J. D. Schade, V. Spektor, R. M. Holmes, A. G. Bunn, E. B. Bulygina, K. M. Walter-Anthony, K. E. Frey, N. Zimov, S. A. Zimov. 2010. Nutrient limitation of a thermokarst lake and large river ecosystem in the Kolyma River basin (Russia). American Geophysical Union, fall meeting, San Francisco, California.

Linder, C. A., M. Wilbert, R. M. Holmes. 2010. Multimedia storytelling. American Geophysical Union, fall meeting, San Francisco, California.

Mann, P. J., A. I. Davydova, N. Zimov, E. B. Bulygina, S. Davydov, L. Russell-Roy, S. A. Zimov, R. M. Holmes. 2010. DOM composition and lability during the Arctic spring freshet on the River Kolyma, Northeast Siberia. American Geophysical Union, fall meeting, San Francisco, California.

Schade, J. D., S. A. Thomas, E. C. Seybold, T. Drake, K. Lewis, K. MacNeill, N. Zimov. 2010. Whole ecosystem approaches for assessing the coupling of N and P cycles in small streams. American Geophysical Union, fall meeting, San Francisco, California.

Sobczak, W. V., A. Crowley. 2010. Dissolved organic matter (DOM) bioavailability among aquatic ecosystems in Russia’s Kolyma River watershed during summer baseflow. American Geophysical Union, fall meeting, San Francisco, California.

PI Authors

Holmes, R. M. 2010. Detecting the lit fuse of the Arctic’s carbon bomb. Society for the Advancement of Chicanos and Native Americans in Science (SACNAS), Anaheim, California.

Holmes, R. M, E. Bulygina, J. E. Vonk, S. Davydov, A. Davidova, P. Mann, R. Spencer, N. Zimov, S. Zimov. 2010. Detecting the lit fuse of the Arctic’s carbon bomb. American Geophysical Union, fall meeting, San Francisco, California.

Holmes, R. M., M. T. Coe, and R. A. Houghton. 2010. Integrating rivers into our understanding of the terrestrial carbon balance. UNFCCC COP 16, Cancun, Mexico.

Sobczak, W. V., J. D. Schade, E. B. Bulygina, A. G. Bunn, S. Chandra, K. E. Frey, R. M. Holmes, V. V. Spektor, K. Walter, N. Zimov, S. A. Zimov. 2010. Organic matter bioavailavility among aquatic habitats in Siberia’s Kolyma River watershed during summer baseflow. American Association of the Advancement of Limnology and Oceanography meeting, Santa Fe, NM.

Vonk, J. E., W. V. Sobczak, P. Mann, E. Bulygina, S. Zimov, R. M. Holmes. 2010. The crucial role of particulate matter in fluvial degradation of thaw-released Arctic carbon. American Geophysical Union, fall meeting, San Francisco, California.

THESES

Berner, Logan. Evaluation of high-latitude boreal forest growth using satellite-derived vegetation indices. Huxley College Masters Thesis, Western Washington University, April 2010. [download pdf]

Denfeld, Blaize. Recent climate trends in the Kolyma River watershed and their potential influences on the carbon cycle. Senior Honors Thesis, Clark University, May 2010.

Drake, Travis. Transient storage, discharge, and nutrient uptake in small streams of the Kolyma River basin, Siberia. Senior Thesis, Carleton College, March 2010. [download pdf]

Griffin, Claire. Mapping late summer dissolved organic matter in the Kolyma River using Landsat TM and ETM+ imagery. Senior Honors Thesis, Clark University, May 2010.

Henson, Kayla. Arctic Zoobenthos in Thermokarst and Floodplain Lakes in Yarkutia, Russia. Huxley College Senior Thesis, Western Washington University. 2010. [download pdf]

Zapatka, Boyd. Burn scar recognition in the boreal forest near Cherskiy, Russia, using synthetic aperture radar and Landsat TM data. Senior Honors Thesis, Clark University, May 2010.

CONFERENCE ABSTRACTS

Student Co-Authors

Schade, J. D., E. Seybold, T. Drake, K. Bulygina, A. Bunn, S. Chandra, S. Davydov, R. M. Holmes, V. Sobczak, V. Spektor, S. Zimov. 2009. Assessing biogeochemical cycling and transient storage of surface water in eastern Siberia using short-term solute additions. American Geophysical Union, fall meeting, San Francisco, California.

PI Authors

Bulygina, E. B., S. Davydov, A. Davydova, K. Frey, L. Russell-Roy, A. Bunn, S. Chandra, J. Schade, W. Sobczak, V. Spektor, S. Zimov, R. M. Holmes. 2009. Application of absorption spectrophotometry to the study of the seasonal dynamics of dissolved organic matter in Arctic streams. American Geophysical Union, fall meeting, San Francisco, California.

Frey, K. E., E. B. Bulygina, A. Bunn, S. Chandra, S. Davydov, R. M. Holmes, J. Schade, W. Sobczak, V. Spektor, S. Zimov. 2009. Ultraviolet-visible absorption spectra of chormophoric dissolved organic matter (CDOM) in waters throughout the Kolyma River basin, East Siberia. American Geophysical Union, fall meeting, San Francisco, California.

Holmes, R. M. 2009. Does polar research matter? 2009. Invited presentation at the American Geophysical Union, fall meeting, San Francisco, California.

Sobczak, W. V., E. Bulygina, A. Bunn, S. Chandra, K. Frey, R. M. Holmes, J. Schade, V. Spektor, N. Zimov, S. Zimov. 2009. Bioavailability of organic matter in aquatic environments throughout Siberia’s Kolyma River watershed during summer baseflow. American Geophysical Union, fall meeting, San Francisco, California.

JOURNAL ARTICLES

PI Authors

Frey, K. E., J. W. McClelland. 2009. Impacts of permafrost degradation on arctic river biogeochemistry. Hydrological Processes 23:169-182. DOI:10.1002/hyp.7196

Holmes, R. M., K. E. Frey, S. Zimov. 2009. A field course in the Siberian Arctic: 30 days, 20 people, 3 continents, 1 barge. EOS 90:222-223. DOI:10.1029/2009EO260003

Zimov, N. S., S. A. Zimov, A. E. Zimova, G. M. Zimova, V. I. Chuprynin, F. S. Chapin III. 2009. Carbon storage in permafrost and soils of the mammoth tundra-steppe biome: role in the global carbon cycle. Geophysical Research Letters 36, L02502. DOI:10.1029/2008GL36332

THESES

Llewellyn, Tyler. Using Dendrochronology and Remote Sensing to Assess Lake Drainage Rates of Pan-Arctic Lakes. Huxley College Senior Thesis, Western Washington University. 2009.

CONFERENCE ABSTRACTS

Student Lead Authors

Willis, K., B. Zapatka, K. Frey, J. Schade. R. M. Holmes. 2008. Biogeochemical characteristics of Siberia’s Kolyma River watershed in relation to climate warming and permafrost degradation. American Geophysical Union, fall meeting, San Francisco, California.

PI Authors

Holmes, R. M., K. Bulygina, A. Bunn, S. Chandra, J. Schade, V. Spektor, W. Sobczak, K. Walter, S. Zimov. 2008. The Polaris Project. Rising starts in the Arctic. American Geophysical Union, fall meeting, San Francisco, California.

Warburton, J., K. M. Timm, R. M. Holmes, C. Geiger, B. Lefer. 2008. Taking broader impacts to another level: researcher benefits from teacher researcher experience collaborations. American Geophysical Union, fall meeting, San Francisco, California.