General research themes in the Ogle Lab include:
- Functional ecology of North American trees
- Linking individual- and species-specific tree functional traits to forest dynamics
- Ecology of arid and semi-arid systems
- Synthesis of long-term data to understand factors governing soil and ecosystem carbon dynamics
- Effects of climate change and variability on terrestrial ecosystems
- Linking above- and below-ground plant and ecosystem processes
- Use of stable isotopes to partition plant and ecosystem processes
- Modeling of plant and ecosystem processes
- Bayesian statistical applications in ecology
Drew Peltier won the 2018 Research and Creative Activity NAU Award for Most Promising Graduate Student.
Jessica Guo was awarded the 2018 Jerry O. Wolff Student Enrichment Scholarship from the Biology Department.
Kimberly Samuels-Crow’s paper Temporal coupling of subsurface and surface soil CO2 fluxes: Insights from a non-steady state model and cross-wavelet coherence analysis was published in Biogeosciences.
Michael Fell’s paper Multidimensional trait space informed by a mechanistic model of tree growth and carbon allocation was published in Ecosphere.
From November 3-5, Jessica Guo lead four NAU students from groups underrepresented in STEM fields on a ESA-SEEDS sponsored field trip to Tucson, AZ. Along with other students from ASU, U of A, and Phoenix College, they learned about the biogeography, geology, and hydrology of Mount Lemmon. Highlights included a workshop on scientific illustration and plankton sampling at the ocean in Biosphere II!
Laura Marqués, a PhD student from the University of Alcalá (Spain) was awarded a PhD mobility scholarship by her PhD program to visit our lab during this Fall Semester 2017. Laura will work with Kiona Ogle and Drew Peltier to study forest growth responses to climate legacy effects and stand structure.
Drew Peltier was Awarded a DDIG from NSF-DEB to address following questions: (1) what are the effects of drought stress on the storage dynamics of NSCs (non-structural carbohydrates) in foundation tree species? And, (2) how are these dynamics related to legacy effects of drought in southwestern US forests? The project is using 14C in tree ring NSC in aspen to investigate links between drought stress and NSC storage, with implications for how foundation tree species will respond to climate change, and hopefully contribute to a mechanistic understanding of drought legacy effects.
Jessica Guo’s oral presentation at the 2017 ESA Annual Meeting, titled “Seasonal trends in leaf non-structural carbohydrates driven by depletion of starch in Larrea tridentata” was awarded the 2017 W. D. and S. M. Billings Award Honorable Mention by the Physiological Ecology Section.
In June 2017, the Ogle Lab was awarded a TRIF-REAP grant and used the money to acquire a Picarro L2140-i isotope analyzer capable of measuring δD, δ18O, and δ17O in water vapor and liquid water.
Outreach: From November 3-5, Jessica Guo lead four NAU students from groups underrepresented in STEM fields on a ESA-SEEDS sponsored field trip to Tucson, AZ. Along with other students from ASU, U of A, and Phoenix College, they learned about the biogeography, geology, and hydrology of Mount Lemmon. Highlights included a workshop on scientific illustration and plankton sampling at the ocean in Biosphere II!
On 9/23/17 Jessica Guo and Laura Marqués volunteered at the Flagstaff Festival of Science, Science in the park event.
On 9/21/17 Drew Peltier joined a youth conservation trip with the Grand Canyon Trust on the North Rim of the grand Canyon to talk about tree ring science with Flagstaff High School students. They discussed recent results from the Ogle lab related to how climate change and drought will impact trees and forests on the Colorado Plateau.