Benning Lab

Department of Ecology and Evolutionary Biology
Cornell University

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Evolutionary ecology & ecological genetics

Our research group seeks to understand the interplay between evolutionary processes and ecological patterns. We work on questions like

  • how does gene flow through space and time mediate adaptation?
  • how important are biotic interactions for constraining species’ geographic distributions?
  • how do environmental gradients influence biological invasions?
  • how does temporal environmental variation alter evolutionary trajectories and the spread of populations across space?

We make use of manipulative field experiments, long-term observational data, controlled laboratory experiments, and theoretical models to gain a more complete understanding of the mechanisms underlying ecological and evolutionary patterns.

updates

Sep 01, 2026
The fall semester is under way, and we’re excited for our undergraduate researchers — Nia, Emma, Sean, and Ari — to start helping out on lab projects. John is co-teaching two courses this term: BIOEE 1780, Cornell’s introductory course in evolutionary biology, and a new graduate seminar, Agentic AI in Ecology & Evolutionary Biology, with Xiangtao Xu. The seminar is a hands-on and skeptical look at agentic AI as it relates to EEB, where we will discuss the possible futures of EEB in a world with widespread, capable AI.
Aug 12, 2026
Native lawn test plot at Cornell Botanic Gardens, grassy understory beneath pines
Todd Bittner gave John a tour of the native lawn test plots at Cornell Botanic Gardens.
Aug 05, 2026
New preprint: Expansion load reduces fitness at the range margin of an invasive plant, with Ryan Briscoe Runquist and Dave Moeller. Across a ~150-year invasion chronosequence in common tansy, drift — not adaptation — dominates: range-edge populations carry expansion load and show reduced fitness.
Aug 05, 2026
The lab crouched in a wet meadow examining a bladderwort plant
Checking out the darling carnivorous aquatic local, Utricularia (bladderwort).
Aug 04, 2026
Farewell and thank you to Anna Cohen, our first lab manager, whose last day is today. Anna built this lab from an empty room. We’ll miss her!