Resident Researchers
Dr. Lucy Kerhoulas
- Associate Professor, Cal Poly Humboldt, Department of Forestry & Wildland Resources
- Education
- PhD, Biology, Northern Arizona University, 2013
- MS, Biology, Humboldt State University, 2008
- BS, Botany, Humboldt State University, 2006
- Research Interests: tree physiology and water use, forest ecology, restoration, dendrochronology, stable isotopes, crown ecology, tree climbing
- Chief Editor, Northwest Science
- Courses taught
- Dendrology (FOR 130)
- Silvics (FOR 331)
- Email: lucy.kerhoulas at humboldt dot edu
- Curriculum vitae
Dr. Nick Kerhoulas
- Lab Manager and Lecturer, Cal Poly Humboldt, Department of Wildlife
- Education
- PhD, Biology, University of Alaska Fairbanks, 2017
- MS, Biology, Humboldt State University, 2008
- BS, Wildlife, Humboldt State University, 2006
- Research Interests: phylogenetics, conservation biology, biogeography, small mammals, arboreal mammals, tree climbing
- Courses taught
- Conservation Biology (WLDF 460)
- Mammals Management (WLDF 422)
- Wildlife Techniques (WLDF 311)
- Email: nicholas.kerhoulas at humboldt dot edu
Wade Polda
- Lab Research Associate; helps with bird surveys, epiphyte identification, tree climbing, and field-based physiology measurements
- Education: BS, Botany, Humboldt State University, 2016
- Email: wtp1 at humboldt dot edu
MS Graduate Students
Current
Past
- Annie Allen — Grazing impacts on fen vegetation communities and their environmental drivers in the Klamath Mountains Ecoregion
- Courtney Copper -- Influences of conifer encroachment on Oregon white oak crown structure and non-vascular epiphyte communities
- David Dorval — Factors influencing tree vigor and structural failure along power line corridors in northern California
- Sebastian Evans — Alpine plant succession in a recently deglaciated foreland basin in the Trinity Alps
- Jenni Hedin — High elevation five-needle pines in the Klamath Mountains
- Millie McCord — Ecophysiological effects of conifer removal treatments on Oregon white oaks in eastern Oregon
Past
- Zoë Ziegler — Patterns of tree damage and fuels around powerlines in northern California (2025) (PDF)
- Gabriel Roletti — Drought responses across diverse conifer species, habitats, and competitive gradients in Northern California (2022) (PDF)
- Sophia Lemmo — Drought, tree mortality, and regeneration in northern California (2022) (PDF)
- Gabriel Goff — Conifer encroachment and removal in a Northern California oak woodland: Influences on ecosystem physiology and biodiversity (2021) (PDF)
- Wallis Robinson — Influences on conifer drought responses in Northern California (2021) (PDF)
- Kevin Soland — Efficacy of forest restoration across a 40-year chronosequence in Redwood National Park (2020) (PDF)
- Ariel Weisgrau — Alternative water sources in western conifers via foliar uptake and hydraulic redistribution (2020) (PDF)
Undergraduate Researchers
Current
Past
- Maddox Haley — High elevation five-needle pines in the Klamath Mountains
- Gabriel Abundis — Effects of grazing on Klamath Mountain fens
- Ryan Gilbert — Effects of grazing on Klamath Mountain fens
- Heather Davis — Effects of grazing on Klamath Mountain fens
- Finn Scott-Neff — Botanical shifts across time in the Klamath Mountains
- Jack Christy — Effects of climate change and fire exclusion on overstory plants in the Klamath Mountains
- Stella Stahl — Herbarium collections from the Klamath Mountains
- Kaitlyn Briggs — Forest water resources in Northern California
- Forrest Horobin — Klamath Mountains Ecoregion vegetation patterns
- Corri Jai — Meadows monitoring in the Klamath Mountains
Past
- Redwoods Rising — Hired 100 undergraduate students to work on redwood and giant sequoia restoration projects (2018 - 2025)
- Wren Williams — Tree failure patterns in northern California, redwood and oak water sources (2024-2025)
- Emily Jackson — Effects of climate change and fire exclusion on understory plants in the Klamath Mountains (2023-2024)
- Maeve Flynn — Effects of climate change and fire exclusion on understory plants in the Klamath Mountains (2024)
- Tori Bernal — EcoPlot data (2024-2025)
- Hannah Ricketts — EcoPlot data (2024-2025)
- Rain Lopez — Tree failure patterns in northern California (2024)
- Damian Giles — Lab Manager (2023-2024)
- Leyana Miller — Tree failure patterns in northern California (2024)
- Daven Haywood — Tree failure patterns in northern California (2024)
- Cameron Tavis — Restoration in Oregon white oak and California black oak woodlands (2024)
- Olivia Fox — Restoration in Oregon white oak and California black oak woodlands (2024)
- Mark Lara — Tree failure patterns in northern California (2024)
- Sienna Tubridy — Tree failure patterns in northern California (2024)
- Miya Tanner — Meadows monitoring in the Klamath Mountains (2024)
- Grayson Prater — Effects of climate change and fire exclusion on montane understory plants in the Klamath Mountains (2024)
- Jess Carey — Effects of climate change and fire exclusion on montane understory plants in the Klamath Mountains (2024)
- Mouse Sloan — Effects of climate change and fire exclusion on montane overstory plants in the Klamath Mountains (2024)
- Clarissa Peyton — Effects of climate change and fire exclusion on montane overstory plants in the Klamath Mountains (2024)
- Sebastian Castillo — Wildfire influences on conifer drought responses (2024)
- Ernesto Chavez-Velasco — Klamath Mountains Ecoregion vegetation patterns (2024)
- Grayson Jameson — Tree failure patterns in northern California (2024)
- Clare Dooley — Plant water sources in the redwood forest (2023)
- Michelle Vongsa — Klamath Mountains Ecoregion vegetation patterns (2023)
- Alec Brown — Klamath Mountains Ecoregion vegetation patterns (2023)
- Fiona Shaw — Plant water sources in the redwood forest (2023)
- Cody Ellis — Plant water sources in the redwood forest (2023)
- Heather Davis — Plant water sources in the redwood forest (2023); Effects of climate change and fire exclusion on montane overstory plants in the Klamath Mountains (2024)
- Dave Ramirez — Tree failure patterns in northern California (2023)
- Cob Poss — Tree failure patterns in northern California (2023)
- Hannah Dungan — Tree failure patterns in northern California (2023)
- Lily Cummins — Black oak woodland restoration (2023)
- Liam Hay — Black oak woodland restoration (2023)
- Britney Martinez — Forest mortality and regeneration in northern California (2021)
- Jenna Brown — Forest mortality and regeneration in northern California (2021)
- Charles Russell — Forest mortality and regeneration in northern California (2021)
- Sarah Aguiar — Conifer drought responses in northern California (2020)
- Perris Alfonzo — Conifer drought responses in northern California (2020)
- Ashley Shannon — Conifer drought responses in northern California (2020)
- Sara Bandali — Conifer drought responses in northern California (2020)
- Ian Conway — Conifer drought responses in northern California (2020)
- Jeremy Dustin — Conifer drought responses in northern California (2020)
- Maeve Flynn — Conifer drought responses in northern California (2020)
- Rosalio Gonzalez — Forest mortality and regeneration in northern California (2020)
- Suzanne Melendez — Conifer drought responses in northern California (2020)
- Diane Orozco — Conifer drought responses in northern California (2020)
- Ryan Maberry — Physiological effects of Ramorum leaf blight on understory hardwoods (2020)
- Jessica Suoja — Physiological effects of Ramorum leaf blight on understory hardwoods (2020)
- William Weinberg — Physiological effects of Ramorum leaf blight on understory hardwoods (2020)
- Asher Budnik — Conifer drought responses in northern California (2019)
- Elizabeth Hinojosa — Conifer drought responses in northern California (2019)
- Brigitte Price — Conifer drought responses in northern California (2019)
- Colleen Smith — Conifer drought responses in northern California (2019)
- David Hammons — Foliar morphology and physiology in bigleaf maple (2019)
- Meagan Burger — Redwood physiological responses to forest restoration (2018)
- Tyler Dunlap — Redwood physiological responses to forest restoration (2018)
- Gabriel Goff — Physiological responses of Oregon white oak to conifer encroachment (2018)
- Alex Gorman — Epiphyte diversity and distribution in an old Sitka spruce crown (2018)
- Emily Hoeft — Foliar uptake in Sitka spruce (2018)
- Sonnette Russell — Redwood physiological responses to forest restoration (2018)
- Kevin Soland — Redwood physiological responses to forest restoration (2018)
- Scott Whittington — Population assessment for the Sonoma tree vole at the L.W. Schatz Demonstration Tree Farm (2017)
- Millen McCord — Epiphyte diversity in Sitka spruce crowns (2017)
- Wade Polda — Physiology and growth of conifer seedlings planted after variable density retention treatments (2016)
- Ariel Weisgrau — Adaptation to climate change? Moving coast redwood seedlings northward and inland (2015) & Foliar morphology and physiology of bigleaf maple (2016)
- John Naccarato — Adaptation to climate change? Moving coast redwood seedlings northward and inland (2015)
