Published: Jan. 27, 2023

2023 Spring Seminar Series Presents

Photo of an Island

Dr. Michael Logan

Assistant Professor
Department of Biology
University of Nevada, Reno

WHEN:  Feb. 3, 2023, at Noon
WHERE:   Seminar will be presented via Zoom and in person in the North Classroom,
Room 1207.


Everyone is welcome to join the seminar, please email to receive the Zoom link. Requests can be submitted any time before the seminar but not after 10:00am the day of the seminar.

Using transplant experiments to understand organismal responses to rapid environmental change

Transplant experiments are a powerful way to measure the responses of populations to sudden shifts in their environments. My collaborators and I have transplanted Anolis lizards from a single mainland site to a series of islands in the Panama Canal that vary in their local environments, differing noticeably in temperature, habitat structure, light levels, predation, and competition. We are combining long term mark-recapture surveys with a range of laboratory studies (from transcriptomics to thermal tolerance) to measure how and why a broad suite of traits are changing on these islands. In this talk, I will present preliminary results for three parallel stories. First, I will discuss the environmental factors that have facilitated colonization or precipitated extinction of lizard populations in the years immediately following transplantation to islands. Second, I will discuss shifts in behavioral and morphological traits that have already occurred on the experimental islands, and why we think these changes have happened. Finally, I will discuss a new project aimed at understanding how antagonistic selection might mediate the evolution of the Anolis dewlap (a sexual signaling organ).