University of Vermont

Rubenstein Ecosystem Science Laboratory

Rubenstein Lab graduate students

Graduate Students

Current Graduate Students

  • Joe BartlettJoseph Bartlett
    Master's in Natural Resources (Aquatic Ecology & Watershed Science)
    Advisor: Breck Bowden
    Research Focus: Streams Project
  • Peter EuclidePeter Euclide
    Master's in Natural Resources (Aquatic Ecology & Watershed Science)
    Advisor: Jason Stockwell
    Research Focus: Peter's research focuses on the ecology of vertical migration behavior in opossum shrimp, Mysis diluviana. Each night Mysis migrate from the bottom of deep lakes toward the surface where they feed on zooplankton and phytoplankton. However, in many systems a portion of the population foregoes migration, remaining on the bottom throughout the night. Peter's research uses respirometry and stable isotope techniques to assess the effect of differing vertical migration behavior could have on the population structure and bioenergetics of Mysis.
  • Trevor GearhartTrevor Gearhart
    PhD in Biology
    Advisor: Jason Stockwell
    Research Focus: Trevor’s research focuses on the use of lipids, specifically fatty acids, to quantify the relative importance of different food-web pathways in sustaining both pelagic and benthic ecosystems. He works on Missisquoi Bay, a eutrophic bay on Lake Champlain that experiences annual cyanobacteria blooms. He is also interested in evaluating the role of essential fatty acids as a possible limiting nutrient for higher trophic levels such as zooplankton and fishes due to the low levels of essential fatty acids produced by cyanobacteria.
  • Rebecca GorneyRebecca Gorney
    PhD in Natural Resources
    Advisor: Mary Watzin
    Research Focus: Rebecca is testing the hypothesis that declines in the large zooplankton community of Missisquoi Bay, Lake Champlain, are a result of the combined effects of eutrophication, cyanobacteria blooms, and invasive fish species. She has conducted a diet analysis of two species of invasive planktivorous fish (white perch and alewife), a mesocosm study of the impacts of the removal of large zooplankton on phytoplankton community composition, and a study of long-term trends in the phytoplankton community of Missisquoi Bay and eutrophic St. Albans Bay. The results of her work will be valuable to large lake researchers and managers interested in rapid ecological change as a result of the combined effects of invasive species and anthropogenic eutrophication.
  • Philip HaltemanPhilip Halteman
    PhD in Natural Resources
    Advisor: Mary Watzin
    Research Focus: Philip is interested in how to make better decisions about managing natural resources in general, and improving water quality in particular. The practice of adaptive management has often been touted as a guiding light for resource managers interested in making more effective decisions over time, but despite a strong theoretical base and a set of proven and practical tools, good examples of adaptive management are rare in the realm of water quality. Philip's work focuses on integrating the tools of statistical modeling and decision analysis in an effort to better communicate to resource managers the roles that variability and uncertainty play in predicting the effects of water quality management policies. He works closely with the Lake Champlain Basin Program, the State of Vermont, and the US EPA to put these tools into practice in the management of Lake Champlain.
  • Peter IslesPeter Isles
    PhD in Natural Resources
    Advisor: Jason Stockwell and Andrew Schroth (Geology)
    Research Focus: Peter is studying the drivers of harmful algal blooms in Lake Champlain. Using a combination of high-resolution sensor data, laboratory analyses, microscopy, and statistical as well as process-based modeling approaches, he is trying to predict the likely impacts of climate change on phytoplankton communities and water quality in Missisquoi Bay, Lake Champlain. Theoretically, Peter is interested in alternate stable states and ecosystem tipping points, the importance of scale (temporal as well as spatial) in deciphering ecosystem processes, and the relative importance of multiple limiting resources in eutrophic systems.
  • Mitchell JonesMitchell Jones
    Master's in Natural Resources (Aquatic Ecology & Watershed Science)
    Advisor: Jason Stockwell
    Research Focus: Mitchell's research is part of a multi-institution effort to examine the impact of environmental forcing on food web dynamics in the Gulf of Maine. His project involves modeling the energy budget of Atlantic Herring by coupling a mercury mass-balance model with a bioenergetics model. The use of the mercury mass-balance model provides an alternative, independent estimate of food consumption compared to the standard bioenergetics modeling approach. Mitchell also is developing a foraging model to test hypotheses about prey switching behavior by Atlantic Herring. The models will provide better understanding of how and why herring condition in the Gulf of Maine has changed over the last several decades and how it may be affected by climate change in the future.
  • Pooja KanwarPooja Kanwar
    PhD in Natural Resources
    Advisor: Breck Bowden
    Research Focus: Quantifying ecosystem services
  • Julia LaroucheJulia Larouche
    PhD in Natural Resources
    Advisor: Breck Bowden
    Research Focus: Thermokarst impacts on arctic stream ecosystems
  • Joel NipperJoel Nipper
    PhD in Natural Resources
    Advisor: Breck Bowden
    Research Focus: Stormwater management: sources of water pollution and evaluation of a stormwater detention pond
  • Sam ParkerSamuel Parker
    PhD in Natural Resources
    Advisor: Breck Bowden
    Research Focus: Sam is studying the effects of scale on the structure and function of Arctic stream ecosystems. His research on the North Slope of Alaska is part of the Scale, Consumers, and Lotic Ecosystem Rates (SCALER) Project. SCALER is a continental-scale study exploring how results from small-scale ecological experiments can be used to understand the operation of broader ecological systems. Sam’s research uses a nested study design to evaluate how nutrient uptake and metabolic rates measured at small patch scales (0.1m) contribute to larger reach scale (100m) dynamics. Sam is also investigating the role of surface-subsurface water exchange and ecosystem heterogeneity on lotic processes across river networks.
  • Victoria PinheiroVictoria Pinheiro
    Master's in Natural Resources (Aquatic Ecology and Watershed Science)
    Advisor: Ellen Marsden and Jason Stockwell
    Research Focus: Victoria is investigating the spawning behavior of lake trout in Lake Champlain using acoustic telemetry. Lake trout disappeared from Lake Champlain around 1900. To revitalize the population, the lake was stocked with hatchery-raised fish starting in 1972. However, little to no natural recruitment has been observed. While lake trout spawning habitats have been well described, there is a gap in the literature about spawning behavior in Lake Champlain. To better understand the constraints to establishing self-sustaining wild lake trout populations, she will evaluate lake trout movements before, during, and after spawning by tracking the movement of individuals with particular emphasis on male versus female travel patterns. She hypothesizes that males arrive at a particular site and remain there, while females travel from location to location to maximize reproductive fitness over several habitats and male populations. She has 12 acoustic receivers (each capable of picking up signals emitted from tagged fish within 3km of themselves) stationed throughout the lake and has successfully tagged 30 fish with plans to expand that number in the Spring of 2014.

Former Graduate Students

  • Wayne BouffardWayne Bouffard
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2009
    Advisor: Ellen Marsden
    Research Focus: Sea lamprey pheromones
  • Carl CappellettiCarl Cappelletti
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2006
    Advisor: Breck Bowden
    Research Focus: Whole stream metabolism in Arctic tundra streams
  • Meredith ClaytonMeredith Clayton
    Master's in Natural Resources (Aquatic Ecology & Watershed Science)
    Advisor: Breck Bowden
    Research Focus: Flow Monitoring Project
  • Eric DavisEric Davis
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2013
    Advisor: Breck Bowden
    Research Focus: Development of a wetland monitoring protocol
  • Evan FitzgeraldEvan Fitzgerald
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2007
    Advisor: Breck Bowden
    Research Focus: Impacts of urban development on stream geomorphology
  • Julie FoleyJulie Foley
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2007
    Advisor: Breck Bowden
    Research Focus: Innovations in stormwater management policy and regulation
  • Alex HackmanAlex Hackman
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2008
    Advisor: Breck Bowden
    Research Focus: Impacts of stormwater on stream sturcture and function
  • Seth HerbstSeth Herbst
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2010
    Advisor: Ellen Marsden
    Research Focus: Lake whitefish ecology and management
  • Malcolm HerstandMalcolm Herstand
    Master's in Natural Resources (Aquatic Ecology & Watershed Science)
    Advisor: Breck Bowden
    Research Focus: Integrating hydrological and biogeochemical processes in Arctic streams
  • Amanda HollandAmanda Holland
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2008
    Advisor: Breck Bowden
    Research Focus: Ecology of urban development
  • Eric HoweEric Howe
    PhD in Natural Resources 2006, Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2003
    Advisor: Ellen Marsden
    Research Focus: Sea lamprey ecology and management
  • Morgan JohnstonMorgan Johnston
    PhD in Natural Resources 2006, Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2007
    Advisor: Breck Bowden
    Research Focus: Hyporheic processing in Arctic tundra streams
  • Bret LadagoBret Ladago
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2013
    Advisor: Ellen Marsden
    Research Focus: Thiamine deficiency in lake trout and Atlantic salmon
  • Jake RileyJacob Riley
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2008
    Advisor: Ellen Marsden
    Research Focus: Lake trout reproduction and early life history
  • Steve SmithSteven Smith
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2006
    Advisor: Ellen Marsden
    Research Focus: Sea lamprey ecology and management
  • Lisle SnyderLisle Snyder
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2012
    Advisor: Breck Bowden
    Research Focus: Innovative instrumentation of in situ stream nutrient monitoring

Last modified February 05 2014 02:47 PM