Research & Projects
PhD Research - Alexa Fredston-Hermann

BA Ecology and Evolutionary Biology, Princeton University

Climate change and other human impacts have global consequences for ecosystems that require synthetic approaches to fully comprehend. My research focuses on climate-related shifts in species distributions in the Anthropocene. Currently, I am studying how non-climate drivers of species distributions (biogeographic boundaries, biotic interactions, and abiotic factors) may constrain or facilitate climate-related range shifts. I use theory and large datasets to explore these interacting processes in multiple systems and regions. This work will enhance predictions of what species are most susceptible to severe range contractions due to climate change, thereby informing conservation efforts for those threatened species. I also participated in a SNAP (Science for Nature and People) working group from 2014-2016, “Ridges to Reef Fisheries,” and designed a decision tree to sort coastal marine regions by the risk of ecological degradation from land-based runoff.

Year Admitted: 2014
Research Areas: synthetic ecology, biogeography, conservation
Faculty Advisor: Ben Halpern, Steve Gaines

Office/Lab: Bren Hall 4322
Lab Page
Curriculum Vitae


A. Fredston-Hermann. (in prep). Non-climate drivers of species distributions in the Anthropocene.

Burgess, M. G., C. Costello, A. Fredston-Hermann, M. Pinsky, S. D. Gaines, D. Tilman, and S. Polasky. (in review). Harvesting to extinction via range contraction and market demand.

Fredston-Hermann, A., C. J. Brown, S. Albert, C. Klein, S. Mangubhai, J. L. Nelson, L. Teneva, A. Wenger, S. D. Gaines, and B. S. Halpern. (in review). Where does river runoff matter for coastal marine conservation?

Fredston-Hermann, A. L., A. O’Dea, F. Rodriguez, W. G. Thompson, and J. A. Todd. 2013. Marked ecological shifts in seagrass and reef molluscan communities since the mid-Holocene in the Southwestern Caribbean. Bulletin of Marine Science 89(4):983-1002.


Science for Nature and People Working Group: Ridges to Reef Fisheries

Fellowship Awards

National Defense Science and Engineering Graduate Fellowship: 2014-2017