Graduate Student News

Experiences in the first days and weeks of life can have a profound impact on humans — and birds. A new study led by Sage Madden, a graduate student working with Gail Patricelli, a professor of evolution and ecology, shows how weather conditions and family dynamics affect the growth of barn swallow (Hirundo rustica erythrogaster) chicks. 

On her first day of graduate school, Karolina Zabinski rose at 4:00am. She spent the day on the muddy shores of Tomales Bay, collecting eelgrass for a survey of aquatic plant diseases. These ribbon-like seagrasses are common along the California coast and form knee-high meadows that undulate in the water.

As she scooped plants out of the mud, she noticed how much they varied from place to place. Eelgrass (Zostera marina) at one site had long, slender roots. But just a few miles north, the roots were short and bushy. 

Why are there so many species of coral reef fish? According to a new study, it’s because about 50 million years ago, some fish figured out how to bite food from hard surfaces. 

Evolution doesn’t proceed at an even pace—species evolve in jumps and spurts, followed by lulls. These periods of rapid diversification usually occur after a dramatic environmental change or upheaval, or when a lineage develops a new “innovation” that allows them to use a previously inaccessible resource. For fish, the ability to feed from a hard surface was one such innovation.

Coral reefs make up less than 1% of ocean habitat but are home to at least 25% of marine species. These incredibly biodiverse ecosystems are increasingly threatened by human actions, including anthropogenic climate change.

In a new study published in Science Advances on September 10, a team of UC Davis researchers tracked the movement of fluorescent particles inside the cells of microscopic worms, providing unprecedented insights into cellular crowding in a multicellular animal. They found that the cytoplasm inside the worms was significantly more crowded and compartmentalized than in single-celled yeast or mammalian tissue culture cells, which are more commonly used to gauge internal cellular dynamics.

Mentorship in the life sciences plays a crucial role. One generation helps the next, and together new discoveries are made, techniques are developed and skills are honed, by both mentor and mentee.

The CBS Dean’s Mentorship Awards, which are made possible through donations to the college’s Annual Fund, recognize exceptional graduate students who have mentored undergraduate students in the lab and classroom. This year’s recipients were honored at a college award ceremony on Saturday, June 3.

In the College of Biological Sciences, principles of diversity, equity and inclusion are guiding principles. As such, an array of special DEI-related programs led by graduate students, each of whom was awarded a Graduate DEIJ Leader Fellowship for the 2022-23 academic year, will culminate in an open house event highlighting their achievements from 1:00-3:00pm on June 8, in Walker Hall. 

The final round of the UC Davis Grad Slam had a flurry of PowerPoint slides, a giant deck of cards and a stuffed monkey, but in the end the top prize went to someone talking about genetic “ghosts.”

Three graduate students in the College of Biological Sciences are among this year’s finalists for the UC Davis Grad Slam competition.

This year’s graduate student awards emphasize the importance - and success - of mentoring younger scientists, and demonstrate the UC Davis commitment to collaboration, support and partnership that define interdisciplinary science. Graduate student awards support travel, research and professional development opportunities, and are made possible by generous philanthropic contributions to the college.

The Dean’s Mentorship Award recognizes graduate students who have demonstrated excellence in the mentorship of undergraduate students.