Mac A McLennan Experimental Technologist and Automation Engineer - APPL Contact 458.206.3042 | mclennanda@ornl.gov All Publications The roles of photochemical and non-photochemical quenching in regulating photosynthesis depend on the phases of fluctuating light conditions Photosynthetic and Respiratory Responses of Two Bog Shrub Species to Whole Ecosystem Warming and Elevated CO2 at the Boreal-Temperate Ecotone Differential ecophysiological responses and resilience to heat wave events in four co-occurring temperate tree species... Boreal conifers maintain carbon uptake with warming despite failure to track optimal temperatures Differential ecophysiological responses and resilience to heat wave events in four co-occurring temperate tree species Key Links Curriculum Vitae Google Scholar Web of Science ORCID LinkedIn The Advanced Plant Phenotyping Laboratory at ORNL Organizations Oak Ridge National Laboratory Biological and Environmental Systems Science Directorate Biosciences Division Biodesign and Systems Biology Section Plant Systems Biology Group Center for Bioenergy Innovation Climate Change Science Institute