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​The Ulrich Lab
at Montana State University

Plant Physiological Ecology
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Dr. Danielle E. Marias Ulrich

Dr. Ulrich is an Associate Professor in the Ecology Department examining plant physiological responses to and interactions with their environments. Dr. Ulrich's lab investigates the physiological responses to stress and mechanisms underlying survival and mortality using physiological measurements and interdisciplinary and collaborative approaches (e.g., hyperspectral imaging, microbial ecology, tree-ring stable isotopes, process-based models) in diverse systems (forest, grassland) to improve our understanding and predictions of species distributions, functions, and vegetation-climate feedbacks under future climates. In her spare time, you can find Dr. Ulrich mountain biking, telemark skiing, trail running, and learning ukulele.
Background
Associate Professor, 
Ecology Department, Montana State University, Bozeman, Montana                                                     2025-present
Assistant Professor, Ecology Department, Montana State University, Bozeman, Montana                                                      2019-2025

Chick Keller Postdoc Fellow, Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico                   2017-2019
Oregon State University, NSF Graduate Research Fellow, Ph.D., Forest Ecosystems & Society, Corvallis, Oregon              2017  
Oregon State University, M.S., Tree Physiology, Corvallis, Oregon                                                                                                 2013
Plant Pathology & Ecology Department, Connecticut Agricultural Experiment Station, New Haven, Connecticut            2010
Bowdoin College, A.B. with Honors in Biology, minor in Chemistry, Brunswick, Maine                                   
                         2010

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Sean Hoy-Skubik

Sean Hoy-Skubik is pursuing a PhD in Ecology & Environmental Sciences from the Department of Ecology. He attended Vassar College in Poughkeepsie, NY as an undergraduate, where he received a degree in Biology and spent two years working at the Vassar Farm and Ecological Preserve. After graduating he spent four years working for the USGS in Moab, UT, studying how climate change, mining activity, and livestock production affect ecosystem function on the Colorado Plateau. Sean is particularly interested in how organismal level adaptions affect ecosystem level processes, especially in the context of a changing climate. In his free time Sean enjoys mountain biking, skiing, snowboarding, paddle boarding, exploring with his dog, or simply relaxing with a good book.

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Lou Duloisy

Lou Duloisy is pursuing a PhD in Ecology and Environmental Sciences from the Department of Ecology. Her research focuses on investigating the physiological mechanisms and drivers of old-growth tree survival and mortality using tree-ring stable isotopes and dendrochronological approaches. Lou received her B.A. in Environmental Biology from Ohio University in Athens, OH in 2019 and her M.Ed. from Teton Science Schools and Antioch University in 2021. Her time working in environmental education, exploring the greater Yellowstone ecosystem, and working as a lab technician at Chapman University led to an interest in plant ecophysiology and pursuit of a graduate degree in Montana. When she's not studying or doing research, she loves to ski, bike, hike, and exploring new places. ​

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Ainsley Nystrom

Ainsley Nystrom is pursuing a PhD in Ecology and Environmental Sciences in the Department of Ecology. She earned her Honors Bachelor of Science in Chemistry from the University of Utah, with emphases in Atmospheric and Environmental Chemistry and in Biological Chemistry, as well as a minor in Environmental and Sustainability Studies. During her undergraduate studies, she worked in the Anderegg Lab, where she investigated the physiological impacts of drought, fire, and smoke on conifers. Her time in the lab led her to write a senior thesis titled “The Effects of Smoke Intensity on Ponderosa Pine Physiology,” and inspired her interest in plant ecophysiology and climate change. Ainsley’s research focuses broadly on how environmental stressors caused by climate change affect tree physiology. When she's not conducting research, she enjoys skiing, hiking, running, and reading.

Former lab members

Graduate
Stephen Huysman - MS, Mapping climate and disturbance refugia for conservation of whitebark pine
Jessica Harris - MS, Comparing early seedling traits of Pinus albicaulis and Pinus flexilis across climates and rust resistance levels
Teo Rautu - MS, Impacts of forest mortality on streamflow in whitebark pine forests within the Greater Yellowstone Ecosystem
Katie Sparks - MS, Comparing juvenile physiology and morphology of two high-elevation pines, Pinus albicaulis and Pinus balfouriana

Franklin Alongi - MS, Drought and methyl jasmonate induce non-structural carbohydrate utilization and modify terpene production in pine seedlings
Chloe Wasteneys - MS, Physiological traits and stress tolerances of three high-elevation pine species 

Postdoctoral 
Dr. Hannah Goemann

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Your name here?

We are always looking for new lab members so please contact Dr. Ulrich to discuss your interests and possible opportunities.

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  • Home
  • people
  • research
    • Pine seedling ecophysiology
    • Plant C dynamics
    • Plant-microbe interactions
    • Ecotypic variation
    • Thermotolerance
    • Tree-ring stable isotopes
    • Process Modeling
    • Publications
  • teaching
  • news
  • opportunities