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OGLE LAB

Coupling field studies and modeling of plant and ecosystem processes





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

Outside Links:

Lab News:

  • November 2017 Update:


    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!


  • News for Fall 2017:


    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.


  • News for Spring 2016:


    Congratulations to multiple Ogle Lab members for recent recognition by the Department of Biological Sciences:

    PhD student, Jessica Guo, was awarded the Brian Layton Cardall Memorial Scholarship for “excellent PhD candidate with research focus on conservation biology.”

    PhD student, Drew Peltier, was awarded the Best Published Paper with Graduate Student as Senior Author, for his article that was recently accepted by Ecology, titled “Altered climatic sensitivity of tree growth following drought: synthesis of tree-ring data from multiple species across the Southwest” with co-authors Michael Fell (PhD student in Ogle Lab) and Kiona Ogle.

    Undergraduate research assistant, Ryan Bishop (biology major), was awarded the Dr. James Rominger Scholarship for “outstanding undergraduate with interest and/or achievements in plant sciences, and that has demonstrated merit, academic accomplishments, and leadership potential.”

    Also, incoming PhD student (Fall 2016), Abraham Cadmus, was awarded a prestigious, 3-year NSF Graduate Research Fellowship. Abraham will work with Kiona Ogle and Tom Whitham on conservation related problems involving synthesis and modeling.


  • News for Fall 2015:


    The Ogle Lab has moved to Northern Arizona University in Flagstaff, Arizona.

    Ed Ryan’s (post-doc) paper on Antecedent moisture and temperature conditions modulate the response of ecosystem respiration to elevated CO2 and warming published on-line in Global Change Biology.