Our NSF-funded project is with Dr. John Zardus, Dr. Erik Sotka, and others to study the phylogenetic, population genetic, and host association aspects of coronuloid barnacles. These barnacles live on sea turtles, whales, crabs, and other organisms, so you may hear them called "whale barnacles" also. Our study is to understand if patterns of diversity are maintained through limits to larval dispersal, patterns of host movement, or other factors. Stay tuned.
This is funded primarily by the Elaine Lutz Fund for Aquatic Biodiversity. Myself and some students are exploring the evolutionary ecology of this ecosystem-important mussel found at the base of cordgrass in salt marshes. We have one preprint out, three papers in prep, and a lot more fun stuff to do once our project kicks in at the Georgia Coastal Ecosystems LTER in 2026.
A project led by Dr. Rachel Toczydlowski at the USDA Forest Service Northern Research Station is funded by the Great Lakes Restoration Initiative. We will be exploring the best practices for habitat assessment, community survey, and population genetics of freshwater mussels in the Great Lakes. The goals of this project will support restoration and management decisions for the region. This project builds on my experience working on unionids in the southeast, including a 2025 paper by Hayley Robinson and Pete Hazelton. I'm also the curator of aquatic invertebrates for GMNH, thus the Elliptio spinosa at left.
Coastal, intertidal bivalves are ecologically important from Paine 1966 to Angelini et al 2016 and beyond, and those mussels referenced encapsulate 300 million years or more of divergent evolutionary ecology - in the same taxonomic family. So much potential for understanding how diversity adapts to a changing environment! Here they are, in our southeastern and Gulf marshes, doing a big job for us. Similarly, Same for the immense and threatened diversity of mussels in our rivers, playing a huge role in indicating the health of those ecosystems. Shouldn't we know these bivalves better??Â
The ultimate biological 'drifters' for understanding oceanography, they have a hermaphroditic life style so everybody represents the population and how their offspring move. They interact with both local environment (as in work we have done in Balanus glandula and Chthamalus fragilis and others) and as epibionts on hosts including crabs, turtles and whales - we want to know more about their patterns of diversity across environments and hosts for a deeper understanding of interactions between ocean changes and biotic diversity.
Because the ways that natural history and biogeography interact with trait diversity and genomic diversity are fascinating. We have funding from diverse sources such as Paint Rock FRC and the USDA Forest Service to be sure that we focus on thinking about local, endemic diversity -- and all it does for our local and regional ecosystems. Our lab is a melting pot of discussing life history and natural history and how genomes evolve, whether pine trees, darters, mussels, or whatever the next challenge is.