


photo by Kathryn Mercier
Carnaval Lab
Breaking molds in Biogeography
Masters Students

Seosamh Radigan joined the Carnaval Lab in 2023, joining a study on the population dynamics of Acer saccharum (Sugar Maple). While his early work centered on the generation of genomic sequencing data, his research has since evolved to focus on genetic connectivity across the species' northeastern range. Now in the master’s portion of his BS/MS Biology program, Seosamh analyzes how landscape features and environmental gradients facilitate or impede gene flow between populations. Understanding these structural dynamics is ecologically vital; connectivity determines whether populations remain genetically diverse and resilient or become isolated and vulnerable. By mapping these patterns of interaction, Seosamh’s work contributes to a broader understanding of how forest ecosystems maintain their adaptive potential in a fragmented and changing world.