Caroline Williams, Principal Investigator 

Associate Professor of Integrative Biology


Latest CV – Nov 2020

I did my Bachelor’s and Master’s degrees in the Department of Zoology at the University of Otago in Dunedin (New Zealand). I then lived in Japan and Malaysia for several years, teaching English as a second language and working on a science literacy magazine and natural history documentaries. I did my PhD in the Department of Biology at Western University in London, Ontario (Canada) in the lab of Brent Sinclair. In 2012, I moved to Florida to start my postdoctoral research in Dan Hahn’s lab in the Department of Entomology and Nematology at the University of Florida, Gainesville (USA). I am fascinated by how animals deal with environmental variability through physiological plasticity and evolution. I am passionate about increasing diversity, equity and inclusion in higher education.

Serena Caplins, Postdoctoral researcher

For my NSF postdoctoral fellowship I am studying the relationship between plasticity and seasonal adaptation in the sea slug Alderia willowi using a combination of population genetics, physiology assays, and quantitative genetics experiments. This research takes place at UC Davis in the Bay Lab and at UC Berkeley in the Williams Lab.


Lisa Treidel, PhD candidate 

Prior to coming to UC Berkeley, I completed my Lisa picBachelors in Biology at Bucknell University and my Masters at Illinois State University. My previous research has focused on investigating how oxidative stress, a potential consequence of physiological changes, is related to the environment. For example, the primary aim of my Masters was to determine how temperature fluctuations during incubation influenced early-life oxidative stress of turtles. Currently the focus of my planned dissertation work is on the role of changes in energy efficiency in trade-offs and life history evolution.

Kevin Roberts, PhD candidate

I did both my Bachelor’s and Master’s at Sonoma State University with Nathan Rank, examining how central metabolic genes vary among populations of the willow beetle Chrysomela aeneicollis inhabiting thermally variable localities across latitude and elevation. I joined the Williams  lab in 2015, where I am continuing my work on willow beetles. I am interested in overwinter adaptation of insects and how changes in snow cover will alter selective pressures and influence physiological processes.

Ana Lyons, PhD candidate

Ana is an NSF GRFP Fellow and PhD candidate in Integrative Biology, with an emphasis in Computational Biology. For her dissertation research, Ana is interested in unraveling the biochemical mechanisms and evolution of cold tolerance in tardigrades or “water bears”—using a combination of wet lab techniques, computational biology, and field work. Before starting graduate school, Ana worked as a 7th Grade Science public school teacher, working in the Bronx for the New York City Department of Education. She is a first generation college student from rural Michigan (from a village of about 300 people), and holds a B.S. in Biology & Philosophy from MIT (‘12) and a M.A.T. in Secondary Science Education from Relay Graduate School of Education (‘15). She has a strong passion for social justice, decolonizing science, and making STEM education more engaging and accessible for everyone. Email: lyonsa[at]

Andre Szejner Sigal, PhD candidate 

I completed my Bachelor of Science in Entomology at University of Florida. My research interests fall in the intersection between insect physiology and ecology. Before joining the Williams Lab I worked on insect cold tolerance, metabolic cold adaptation, and speciation. My current research focuses on overwintering physiology and adaptation in the convergent ladybeetle (Hippodamia convergens).

Emily King, PhD candidate 

Before coming to Berkeley, I completed my Bachelor’s degree in Marine Science at CSU Monterey Bay where I worked on several ecophysiology projects on fish and crabs. My dissertation work focuses on the suite of traits that allows the New Zealand mud snail (Potamopyrgus antipodarum) to be widely invasive in diverse environments.

Christina Lee, research technician

Current undergraduates

DéJenaé See

Nicole Lee

Lily Shang

Brian Chou

Sarah Shikanov

Benjamin Liu






Rose Kang (Honors thesis)

Katelyn Adam

Varun Bahl

Jessica Le

Annie Sompayrac (Honors thesis)

Gina Kotos

Melissa Lopez

Makayla Arkara

Hannah Richie

Christopher Huebner

Daisy Stocks

Christina Lee

Brian Lee

Gessen Sigrid Quintanilla Ramirez

Ceecee Cascavita


Visiting scholars

Baojun Sun, Chinese Academy of Sciences

Ruud Schilder, Penn State

Lien Luong, U Alberta


Postdoctoral Associate

Rebecca Clark (now at Sienna College)