Department of Evolution and Ecology

Male Size Advantage Drives Evolution of Sex Change in Reef Fish

March 09, 2020
Some species of fish, notably parrotfish and wrasses living on coral reefs, change their biological sex as they age, beginning life as females and later becoming functionally male. New work from the University of California, Davis, shows that this sequential hermaphroditism evolves when bigger males gain an advantage in reproductive success.

Jonathan Eisen: From Aggie Hero to Time

February 25, 2020
Professor Jonathan Eisen, named the first Aggie Hero of 2019-20 for calling out science meeting organizers for gender and racial imbalance among presenters, last week landed on a Time magazine list of 16 people and groups “fighting for a more equal America.”

About That Butterfly Contest: ‘It’s Complicated’

January 30, 2020
Professor Art Shapiro predicted it: The cabbage white butterfly would be out this week, alerting his “posse” to their opportunity to win his annual Beer for a Butterfly contest — the prize going to the person who catches the first cabbage white of the new year.

Associate Professor Santiago Ramirez Named as a Chancellor's Fellow

January 22, 2020
Associate Professor Santiago Ramirez, Department of Evolution and Ecology, was among the 20th class of Chancellor's Fellows. This marks the 20th anniversary of the program that provides philanthropic support to exceptional early career faculty members.

Shivering Seeds: Using Gene Trees to Map a Weed’s Ability to Thrive

January 21, 2020
In a study appearing in Proceedings of the National Academy of Sciences, UC Davis researchers used the staple plant model organism Arabidopsis thaliana, known commonly as the thale cress, to uncover the genetic mechanisms that control its seeds responses to chilly weather.

Can Scents Create New Species? Smells Like Orchid Bee Evolution

January 13, 2020
To attract a mate, male orchid bees collect scents from the environment to create the perfect aroma. In a study appearing in Nature Communications, UC Davis researchers link the evolution of sexual signaling in orchid bees to a gene that’s been shaped by each species’ perfume preferences

The Art-Science Loop: Creating Worlds with Evolution, Ecology and Biodiversity Undergraduate Megan Ma

December 05, 2019
Since enrolling at UC Davis nearly four years ago, undergraduate Megan Ma has lent her artistic talent to the Aggie community. She’s taught scientific illustration, provided artwork for the BIS 2C lab manual and currently works as a graphic designer for the Center for Leadership Learning, all the while taking classes and rotating through research labs.