Benjamin V. Gaglioti

Research Interest
Current Research Projects
Outreach and Media Coverage

My research lies at the intersection of Geology, Ecology, and Climate Science. I employ a variety of geochemical, biological-, and sedimentary-based proxy methods to reconstruct past climate change, and then test how keystone environmental processes responded to this change. The methods I use involve paleobotany, dendrochronology, lake sedimentology, stable isotope analysis, and Quaternary Geology. My past projects range from identifying the remains of ice age plants, quantifying permafrost carbon release during past warming events, identifying the causes of ice age mammal extinctions in Arctic Alaska, testing how humans and climate influenced boreal wildfire activity, developing new tree-ring records to understand climate change in winter, and dating Little Ice Age glacier advances in Southeast Alaska. I enjoy working in remote places.

2018-2020: Ancient ghost forests reveal how Alaska’s glaciers and cedar trees responded to past warming events
Funded By: National Geographic
Principal Investigator: Benjamin Gaglioti (UAF). Co-Investigators: Daniel H. Mann (UAF); Benjamin Jones (UAF); Gregory Wiles (College of Wooster); Laia Andreu-Hayles (Columbia University); Lauren Oakes (Stanford University).
Gaglioti’s National Geographic Explorer Page

2016-2020: Alaskan Tundra Fires during a Time of Rapid Climate Change
Funded By: Joint Fire Science Program
Principal Investigator: Daniel H. Mann (UAF). Co-Investigators are Benjamin Jones (UAF); Benjamin Gaglioti (UAF); Eric Miller (BLM Alaska Fire Service)
JFSP Project ID: 16-1-01-8

Wiles, G.C., Charlton, J., Wilson, R., D’Arrigo, R.D., Buma, B., Krapek, J., Gaglioti, B.V., Wiesenberg, N., Oelkers, R. (Accepted) Yellow-Cedar blue intensity tree-ring chronologies as records of climate and forest-climate response, Juneau, Alaska, USA. The Holocene.

Gaglioti, B.V., Mann, D.H., Wiles G.C., Jones B.M., Charlton, J., Weisenberg N., Andreu-Hayles L. (2019) Timing and causes of coastal Alaska glacier advances during the 19th century as documented by tree-ring dating and historical accounts. Frontiers in Earth Science 7, 82.

Gaglioti, B.V., Mann, D.H., Williams, A.P., Wiles, G.C., Stoffel, M., Oelkers, R., Jones, B.M., Andreu-Hayles, L. (2019) Traumatic resin ducts in subalpine mountain hemlock trees as a new proxy for past winter storminess. Journal of Geophysical Research: Biogeosciences.

Arp, C.D., and 16 others (Gaglioti B.V.) (2019) Ice roads through lake-rich arctic watersheds: Integrating climate uncertainty and freshwater habitat responses into adaptive management. Arctic, Antarctic and Alpine Research51 9–23.

Mann, D.H., Groves, P., Gaglioti, B.V., & Shapiro, B. (2018) Temporal Simplification of Ecological Dynamics was the Globally Shared Cause of Late-Quaternary Extinctions of Terrestrial Megafauna. Biological Reviews 94, 328–352.

Gaglioti, B.V., Mann, D.H., Groves, P., Kunz, M.L., Wooller, M.J., Farquharson, L.M., Jones, B.M., & Reanier R., (2018). Aeolian stratigraphy describes ice-age paleoenvironmental in unglaciated Arctic Alaska. Quaternary Science Reviews182, 175-190.

Elder, C.D., Schnell1, J.D., Xu, X., Walker,  J., Hinkel, K.M., Townsend-Small, A., Arp, C.D., Pohlman, J.W., Gaglioti, B.V. & Czimczik, C.I. (2018) Young carbon fuels CH4 and CO2 emissions from lakes in Arctic Alaska. Nature Climate Change.

Gaglioti, B.V., Mann, D.H., Wooller, M.J., Jones, B.M., Wiles, G.C., Groves, P., Kunz, M.L., Baughman C.A., & Reanier R., (2017). Younger-Dryas cooling and sea-ice feedbacks were prominent features of the Pleistocene-Holocene transition in Arctic Alaska. Quaternary Science Reviews. 169, 330-343.

Stackpoole, S.M., Butman, D.E., Clow, D., Verdin, K., Gaglioti, B.V., Genet, H., & Striegl, R. (2017) Inland waters and their role in the carbon cycle of Alaska. Ecological Applications, (25) 1403–1420.

Gaglioti, B.V., Mann, D.H., Jones, B.M., Wooller, M.J. & Finney, B.P., 2016. High-resolution records detect human-caused changes to the boreal forest wildfire regime in interior Alaska. The Holocene, 26(7), 1064-1074.

Elvert, M., Pohlman, J.W., Becker, K.W., Gaglioti, B.V., Hinrichs, K.U. & Wooller, M.J., (2016). Methane turnover and environmental change from Holocene lipid biomarker records in a thermokarst lake in Arctic Alaska. The Holocene, 26(11), 1766-1777.

Mann, D.H., Groves, P., Reanier, R.E., Gaglioti, B.V., Kunz, M.L., & Shapiro, B.A. (2015). Life and extinction of megafauna in the ice-age Arctic. Proceedings of the National Academy of Sciences, 2015, 165-173.

Wooller, M. J., Gaglioti, B.V., Fulton, T. L., Lopez, A., & Shapiro, B. (2015). Post-glacial dispersal patterns of Northern pike inferred from an 8800 year old pike (Esox cf. lucius) skull from interior Alaska. Quaternary Science Reviews 120, 118-125.

Arp, C. D., Whitman, M. S., Jones, B. M., Grosse, G., Gaglioti, B. V., & Heim, K. C. (2014). Beaded streams of Arctic permafrost landscapes. Biogeosciences Discussions, 11(7), 11391-11441.

Gaglioti, B. V., Mann, D. H., Jones, B. M., Pohlman, J. W., Kunz, M. L., & Wooller, M. J. (2014). Radiocarbon age-offsets in an arctic lake reveal the long-term response of permafrost carbon to climate change. Journal of Geophysical Research: Biogeosciences, 119(8), 1630-1651.

Tape, K.T., Flint, P.L., Meixell, B.W., & Gaglioti, B.V. (2014) Inundation, sedimentation, and subsidence creates goose habitat along the Arctic coast of Alaska. Environmental Research Letters, 8(4) 045031.

Jones, B. M., Breen, A. L., Gaglioti, B. V., Mann, D. H., Rocha, A. V., Grosse, G., & Walker, D. A. (2013). Identification of unrecognized tundra fire events on the north slope of Alaska. Journal of Geophysical Research: Biogeosciences, 118(3), 1334-1344.

Jones, B. M., Gusmeroli, A., Arp, C. D., Strozzi, T., Grosse, G., Gaglioti, B. V., & Whitman, M. S. (2013). Classification of freshwater ice conditions on the Alaskan Arctic Coastal Plain using ground penetrating radar and TerraSAR-X satellite data. International Journal of Remote Sensing, 34(23), 8267-8279.

Mann, D. H., Groves, P., Kunz, M. L., Reanier, R. E., & Gaglioti, B. V. (2013). Ice-age megafauna in Arctic Alaska: extinction, invasion, survival. Quaternary Science Reviews, 70, 91-108.

Wooller, M.J., Kurek, J., Gaglioti, B.V., Cwynar, L.C., Bigelow, N., Reuther, J. D., & Smol, J. P. (2012). An ~11,200 year paleolimnological perspective for emerging archaeological findings at Quartz Lake, Alaska. Journal of Paleolimnology, 48(1), 83-99.

Wooller, M. J., Pohlman, J. W., Gaglioti, B. V., Langdon, P., Jones, M., Anthony, K. M. W., & Elvert, M. (2012). Reconstruction of past methane availability in an Arctic Alaska wetland indicates climate influenced methane release during the past ~12,000 years. Journal of Paleolimnology, 48(1), 27-42.

Blinnikov, M. S., Gaglioti, B. V., Walker, D. A., Wooller, M. J., & Zazula, G. D. (2011). Pleistocene graminoid-dominated ecosystems in the Arctic. Quaternary Science Reviews, 30(21), 2906-2929.

Gaglioti, B.V., Barnes, B.M., Zazula, G.D., Beaudoin, A.B., & Wooller, M.J. (2011). Late Pleistocene paleoecology of arctic ground squirrel (Urocitellus parryii) caches and nests from Interior Alaska's mammoth steppe ecosystem, USA. Quaternary Research, 76(3), 373-382.

Wooller, M.J., Zazula, G.D., Blinnikov, M., Gaglioti, B.V., Bigelow, N., Sanborn, P., & La Farge, C. (2011). The detailed palaeoecology of a mid-Wisconsinan interstadial (ca. 32 000 14C yr BP) vegetation surface from interior Alaska. Journal of Quaternary Science, 26(7), 746-756.

Gaglioti, B. V., Severin, K., & Wooller, M. J. (2010). Developing graminoid cuticle analysis for application to Beringian palaeoecology. Review of Palaeobotany and Palynology, 162(1), 95-110.

  • 2016: Ph.D. Paleoecology (Interdisciplinary Studies; Geosciences Department), University of Alaska Fairbanks.
    Dissertation title: Landscape sensitivity to climate change in northern Alaska: Lessons from the past 
  • 2010: M.S. Biology, University of Alaska Fairbanks.
    Thesis title: The flora of fossil and modern arctic ground squirrel burrows
  • 2007: B.A. Northern Studies, Sterling College and the Center for Northern Studies.
    Senior thesis title: The modern pollen rain along an Elevational Gradient in Northern Arizona: A tool for interpreting paleoclimate records
  • 2019-Present: Assistant Research Professor, Water and Environmental Research Center, Institute of Northern Engineering, University of Alaska Fairbanks
  • 2019-Present: Affiliate Research Faculty, Lamont-Doherty Earth Observatory at Columbia University
  • 2016-2019: Postdoctoral Fellow, Lamont-Doherty Earth Observatory at Columbia University
  • 2011-2016: Research Ecologist SCEP Employee, Alaska Science Center, US Geological Survey.
  • 2009-2010: Research Biologist, National Park Service.
  • 2008-2016: Research Assistant, Alaska Stable Isotope Facility, University of Alaska Fairbanks.