Cooperative Fish and Wildlife Research Units Program: Georgia
Education, Research and Technical Assistance for Managing Our Natural Resources

Georgia Project

Characterization of spatial and temporal variability in fishes in response to climate change

September 2012 - August 2017


Participating Agencies

  • Northeast Climate Science Center

Predicting population responses to climate change requires an understanding of how population dynamics vary over space and time. Although variability has historically been viewed as an impediment to understanding population responses to ecological changes, it can provide an important signal, rather than just being viewed as noise. In this project, we will build upon recently completed analyses of fish population data in the Great Lakes basin to help predict how spatial and temporal variation in fish populations may respond to climate change and other important drivers. We suggest that shifting variance structure can be indicative of population-level responses to climate change. Our proposed research will help elucidate the extent to which quantifiable responses in spatial and temporal variability occur in different forms of fish population data.

Research Publications Publication Date
Vidal, T., B. J. Irwin, C. P. Madenjian, and S. J. Wenger. 2019. Age truncation of alewife in Lake Michigan. Journal of Great Lakes Research. July 2019
Vidal, T. E., B. J. Irwin, T. Wagner, L. G. Rudstam, J. R. Jackson, and J. R. Bence. 2017. Using Variance Structure to Quantify Responses to Perturbation in Fish Catches. Transactions of the American Fisheries Society 146:584-593. [Featured Article] | Abstract April 2017
Irwin, B., T Wagner, and J. R. Bence. 2018. Characterization of Spatial and Temporal Variability in Fishes in Response to Climate Change. Project completion report [extended abstract], Northeast Climate Science Center. January 2018
Theses and Dissertations Publication Date
Vidal, T. 2017. Understanding the role of variability in fish population and community response to changing environmental conditions, PhD Dissertation, University of Georgia. August 2017
Faulk, E.A. 2015. Patterns in distributions of stream fishes in the Eastern Rivers and Mountains Network: A multi-species occupancy approach. The Pennsylvania State University, University Park, PA. March 2015