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.
  • 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.
  • Pooja KanwarPooja Kanwar
    PhD in Natural Resources
    Advisor: Breck Bowden
    Research Focus: Quantifying ecosystem services
  • Carrie KozelCarrie Kozel
    PhD in Natural Resources (Aquatic Ecology and Watershed Science)
    Research Focus: Carrie’s project is looking at the ability of lake trout fry to replenish their thiamine levels through early feeding. Currently, the lake trout in Lake Champlain have no natural recruitment and the entire population is stocked. Thiamine is an essential vitamin (B1) that effects neurological and muscle functions and low levels can lead to mortality. Thiamine deficiency in lake trout in Lake Champlain is believed to be linked to the invasion of non-native alewife. The consumption of alewife by lake trout creates low thiamine levels in the maternal fish and little thiamine is passed to the eggs. This study investigates the ability of early-stage lake trout to acquire thiamine through feeding on natural prey items.
  • 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
  • Brian O'MalleyBrian O'Malley
    PhD in Natural Resources
    Research Focus: As invasive species, shifting nutrient regimes, and climate change alter trophic pathways in aquatic food webs, understanding how biota respond to different stressors seems paramount. Overall Brian is interested in quantifying energy flow through aquatic food webs, from primary producers to top predators, and also the underlying mechanisms driving animal migrations specifically factors influencing Mysis diel vertical migration. Brian earned a BS from SUNY-ESF and worked in the Great Lakes region on a food-web study of Lake Huron and a project evaluating the importance of Lake Ontario’s deep chlorophyll layer. On a more narrow scale Brian's interested in predator-prey dynamics of zooplankton, mysids and fish in large lakes. Brian’s research aims to provide scientists and resource managers with adequate knowledge of ecosystem structure and function to make informed management decisions using an ecosystem-based approach.
  • 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.
  • Betsy PuchalaElizabeth "Betsy" Puchala
    Master's in Natural Resources (Aquatic Ecology and Watershed Science)
    Advisor: Donna Parrish
  • Lee SimardLee Simard
    Master's in Natural Resources (Aquatic Ecology and Watershed Science)
    Advisor: Ellen Marsden
    Research Focus: Lee’s research focuses on the early life stages of lake trout in Yellowstone Lake, which were illegally introduced in the 1980s. The lake trout population rapidly expanded to very high numbers and now threatens the survival of the native Yellowstone cutthroat trout population found in the lake. Although an intensive gill net suppression program is in place, research is being conducted on ways to kill lake trout eggs and fry on spawning reefs to further reduce the population. His work will determine the feasibility of targeting these life stages and whether efforts would have an impact on the overall lake trout population.
  • Matthew VaughanMatthew Vaughan
    PhD in Natural Resources with a watershed sciences concentration
    Email: matthew.vaughan@uvm.edu
    Research Focus: Matthew is working with the Northeast Water Resources Network (NEWRnet) team to understand nutrient dynamics in river networks. The team's monitoring locations target areas with varied land uses, so that we can learn more about water quality response and nutrient fluxes for rivers in forested, agriculture, urban, and mixed landscapes. Matthew's research involves using high-resolution optical water quality sensors that gather a wide range of water quality information at fifteen minute intervals. This will provide insight into the dynamic nature of watershed response to storms at time scales that cannot be captured with traditional grab-sampling techniques.
  • Beth WhiteBeth White
    PhD in Educatinal Leadership and Policy Studies
    Email: beth.white@uvm.edu
    Research Focus: Beth White is a graduate student in the Educational Leadership and Policy Studies program at the University of Vermont. As a former high-school science teacher, Beth's primary research interests are rooted in STEM education and the extent to which curricular experiences engage teachers and students in cooperative problem solving around authentic, community-based, real-world dilemmas. Her current research studies explore the factors that mediate the degree to which teachers employ exploration-based, NGSS-aligned, inquiry science pedagogy. Partnering with Dr. Jason Stockwell, Beth engaged in a study of the behavioral response of Mysis diluvian a to benthic predator, and spearheaded the evaluation of the University’s Research Experience for Undergraduates program, Interdisciplinary Research on Human Impacts in the Lake Champlain Ecosystem, sponsored by the National Science Foundation.

Former Graduate Students

[+] View Former Graduate Students

Graduation Year 2014
  • Mitchell JonesMitchell Jones
    Master's in Natural Resources (Aquatic Ecology & Watershed Science)
    Advisor: Jason Stockwell
    Research Focus: Impact of environmental forcing on food web dynamics in the Gulf of Maine; modeling energy budget of Atlantic Herring
  • Rebecca GorneyRebecca Gorney
    PhD in Natural Resources
    Advisor: Mary Watzin
    Research Focus: Zooplankton community of Missisquoi Bay, Lake Champlain, and eutrophication, cyanobacteria blooms, and invasive fish species
Graduation Year 2013
  • Eric DavisEric Davis
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2013
    Advisor: Breck Bowden
    Research Focus: Development of a wetland monitoring protocol
  • 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
Graduation Year 2012
  • 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
Graduation Year 2010
  • Seth HerbstSeth Herbst
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2010
    Advisor: Ellen Marsden
    Research Focus: Lake whitefish ecology and management
Graduation Year 2009
  • Wayne BouffardWayne Bouffard
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2009
    Advisor: Ellen Marsden
    Research Focus: Sea lamprey pheromones
Graduation Year 2008
  • 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
  • Amanda HollandAmanda Holland
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2008
    Advisor: Breck Bowden
    Research Focus: Ecology of urban development
  • 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
Graduation Year 2007
  • 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
  • Morgan JohnstonMorgan Johnston
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2007
    Advisor: Breck Bowden
    Research Focus: Hyporheic processing in Arctic tundra streams
  • 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
Graduation Year 2006
  • 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
  • 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
  • Steve SmithSteven Smith
    Master's in Natural Resources (Aquatic Ecology & Watershed Science) 2006
    Advisor: Ellen Marsden
    Research Focus: Sea lamprey ecology and management

  • Meredith ClaytonMeredith Clayton
    Master's in Natural Resources (Aquatic Ecology & Watershed Science)
    Advisor: Breck Bowden
    Research Focus: Flow Monitoring Project
  • 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

Last modified November 20 2014 02:31 PM