Postdoctoral Associate

Justin is a Postdoctoral Associate in the Jason Stockwell and Ellen Marsden Labs at the Rubenstein Ecosystem Science Laboratory. He is developing a model of the Lake Champlain food web to better understand the ecological ramifications of many factors on the lake’s ecosystem. This model will help us understand the impact of past events, such as the invasions of species like alewife and reestablishment of wild lake trout populations, in order to better understand and predict how the food webs of the lake will respond in the future.

Justin competed his PhD at the University of Louisiana at Lafayette in the summer of 2021. For his PhD work, he used stable isotope analysis and field studies to understand how landscape features influence the ability of mobile consumers to move energy between disparate habitats and support consumer populations. Additionally, he has developed novel analysis techniques to use isotope data to quantify multidimensional trophic niches, as well as understand how a landscape is producing the resources required to support food webs. Much of this work was done through the Plum Island Ecosystems LTER Site in Newbury, Massachusetts. Justin has worked in a variety of systems including coral reefs, seagrasses, and saltmarshes.

Publications

Selected Publications

  • Lesser, J.S., Bechtold, C.A., Deegan, L.A., Nelson, J.A., 2020a. Habitat decoupling via saltmarsh creek geomorphology alters connection between spatially-coupled food webs. Estuar. Coast. Shelf Sci. 106825.
  • Lesser, J.S., Floyd, O., Fedors, K., Deegan, L.A., Johnson, D.S., Nelson, J.A., 2021. Cross-habitat access modifies the ‘trophic relay’in New England saltmarsh ecosystems. Food Webs 29, e00206.
  • Lesser, J.S., James, W.R., Stallings, C.D., Wilson, R.M., Nelson, J.A., 2020b. Trophic niche size and overlap decreases with increasing ecosystem productivity. Oikos 129, 1303–1313.
  • Ronald Baker, Matthew D. Taylor, Kenneth W. Able, Michael W. Beck, Just Cebrian, Denise D. Colombano, Rod M. Connolly, Carolyn Currin, Linda A. Deegan, Ilka C. Feller, Ben L. Gilby, Matthew E. Kimball, Thomas J. Minello, Lawrence P. Rozas, Charles Simenstad, R. Eugene Turner, Nathan J. Waltham, Michael P. Weinstein, Shelby L. Ziegler, Philine S.E. zu Ermgassen...Justin Lesser...(29 additional authors).  2020. Fisheries rely on threatened salt marshes. Science (80-. ). 370, 670–671.
  • Denise D. Colombano, Steven Y. Litvin, Shelby L. Ziegler,…Justin S. Lesser…(17 additional authors). Climate Change Implications for Tidal Marshes and Food Web Linkages to Estuarine and Coastal Nekton. Estuaries and Coasts 1–12. https://doi.org/10.1007/s12237-020-00891-1
Justin Lesser holding large fish with lake background

Areas of Expertise and/or Research

Food webs, ecological modelling, stable isotope ecology, energy flow

Education

  • PhD, Ecology and Evolutionary Biology, University of Louisiana at Lafayette
  • MS, Marine Biology, Northeastern University
  • BS, Neuroscience; BA, Biology, Brandeis University

Contact

Office Location:

Rubenstein Ecosystem Science Laboratory, 3 College Street