Research

Thermotolerance in Coffea arabica (Marias et al. 2016): I examined the effects of leaf age and methodology on assessments of thermotolerance

Short term heat stress effects on gas exchange, carbohydrate allocation, and physiological recovery in Coffea arabica (Marias et al. 2017): I investigated the effects of leaf age and heat stress duration on carbohydrate allocation and physiological recovery by exposing plants to a simulated heat wave in a growth chamber.

Comparison of ponderosa pine and Douglas-fir seedling thermotolerance and physiological responses to heat stress (Marias et al. 2016): I quantified the thermotolerance of two populations (from a drier and wetter source of origin) of ponderosa and Douglas-fir seedlings  to compare physiological responses to increasing temperature. I also exposed plants to a simulated heat wave in a growth chamber to understand how these species and populations differ in their carbohydrate allocation and gas exchange in response to heat stress.

Process-based modeling with tree-ring C and O stable isotopes (in prep): I am incorporating tree-ring C and O stable isotopes into the Physiological Principles Predicting Growth (3-PG) process-based model to examine the physiological drivers underlying differences in growth and isotope trajectories in upland and riparian old-growth ponderosa pine trees in central Oregon.

Applying tree-ring C and O isotopes to understand the impacts of dwarf mistletoe on host western hemlock (Marias et al. 2014)

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