MY SITE
  • 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
We seek to understand, predict, and mitigate how plants respond to and interact with their environments using interdisciplinary approaches and tools at multiple temporal and spatial scales.

Current Research

Paper published in Forest Ecology & Management, 2023

What environmental and physiological factors determine tree species' distributions under future climate change? We address this question by examining the inter- and intraspecific variation in physiological resistances and responses to environmental stress (heat, drought) of whitebark pine (Pinus albicaulis), limber pine (Pinus flexilis), and Great Basin bristlecone pine (Pinus longaeva) seedlings. Both high elevation five-needle pines are keystone species, yet are declining due to a suite of factors (climate change, white pine blister rust, mountain pine beetle, historical fire suppression, competition), providing the motivation and opportunity to investigate this outstanding and fundamental question in ecology.
Picture
Map of distributions (shaded) and seedlot origins (shapes) (created by Franklin Alongi)

Understand

Picture
How can we use tree-ring stable isotopes to understand physiological responses to abiotic and biotic stress?

Tree-Ring
​Stable Isotopes

Predict

Picture
​How do current responses to environmental stress help us predict future responses to environmental stress?

Pine seedling ecophysiology
Plant C dynamics
Thermotolerance
Intraspecific Variation
Process Modeling

Mitigate

Picture
How can plant-microbe interactions influence plant physiological responses to environmental stress?

Plant-MicrobE
​​interactions

Photos from the field

Measuring predawn water potentials with the pressure chamber
Measuring predawn water potentials with the pressure chamber
Licor LI6400 portable photosynthesis system measuring A-Ci curves on old-growth ponderosa pine in central Oregon
Coffee saplings from Hawaii acclimating to their new home in the greenhouse
Hard at work!
Growth chamber used to impose heat waves on coffee saplings
Samantha digging up loblolly pine roots for biomass measurements
Soil microbial inocula used to inoculate blue grama (Bouteloua gracilis) and loblolly pine (Pinus taeda) seedlings
A surprise when coring old-growth western hemlock in the Wind River Experimental Forest, WA
Measuring A-Ci curves on blue grama (Bouteloua gracilis) with an army of Licor LI6400 portable photosynthesis systems!
Pressure-volume curves measured on pinyon (Pinus edulis) and juniper (Juniperus monosperma) in New Mexico
Cutting tree cores for tree-ring stable isotope analysis
New growth on a coffee sapling before imposed heatwave treatment
Neighbors to our raised bed drought experiment on ponderosa pine and Douglas-fir seedlings
Leaf discs from coffee to construct thermotolerance curves with chlorophyll fluorescence
Ponderosa pine (Pinus ponderosa) seedlings in a raised bed drought experiment
Weather station setup for a common garden experiment
Rainout shelters to impose drought on ponderosa pine seedlings
Tripod setup to measure gas exchange and A-Ci curves on heat-stressed coffee saplings
Measuring gas exchange on a heat-stressed ponderosa pine seedling
Old-growth ponderosa pine in central Oregon
Powered by Create your own unique website with customizable templates.
  • 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