Current Appointments & Affiliations
Professor of Biology
·
2015 - Present
Biology,
Trinity College of Arts & Sciences
Recent Publications
Peltigera lichen thalli produce highly potent ice-nucleating agents
Journal Article Biogeosciences · April 29, 2025 From extracellular freezing to cloud glaciation, the crystallization of water is ubiquitous and shapes life as we know it. Efficient biological ice nucleators (INs) are crucial for organism survival in cold environments and, when aerosolized, serve as a si ... Full text CiteEco-phylogenetic study of Trebouxia in southern Africa reveals interbiome connectivity and potential endemism in a green algal lichen photobiont.
Journal Article American journal of botany · December 2024 PremiseSouthern Africa is a biodiversity hotspot rich in endemic plants and lichen-forming fungi. However, species-level data about lichen photobionts in this region are minimal. We focused on Trebouxia (Chlorophyta), the most common lichen photob ... Full text CiteEnvironmental drivers and cryptic biodiversity hotspots define endophytes in Earth's largest terrestrial biome.
Journal Article Current biology : CB · March 2024 Understanding how symbiotic associations differ across environmental gradients is key to predicting the fate of symbioses as environments change, and it is vital for detecting global reservoirs of symbiont biodiversity in a changing world.1 ... Full text CiteRecent Grants
Collaborative Research: Leveraging historical collections and new surveys to characterize foundational shifts in vital symbioses in the threatened Arctic
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2020 - 2026Digitization TCN: Collaborative Research: Building a global consortium of bryophytes and lichens: keystones of cryptobiotic communities
ResearchCo-Principal Investigator · Awarded by National Science Foundation · 2020 - 2025Spatio-temporal factors shaping symbiotic networks: a case study with cyanolichens
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2019 - 2024View All Grants
Education, Training & Certifications
Duke University ·
1995
Ph.D.
Ottawa University ·
1990
M.S.
Grinnell College ·
1987
B.S.