Skip to main content

David Hutchins News

<em>Trichodesmium</em> is one of the few organisms in the ocean that can “fix” atmospheric nitrogen gas. Photo courtesy of Fish and Wildlife Research Institute.

Bacteria in Overdrive

September 8, 2015

Imagine being in a car with the gas pedal stuck to the floor, heading toward a cliff’s edge. Metaphorically speaking, that’s what climate change will do to the key group of ocean bacteria known as Trichodesmium,…

Professor of Biological Sciences and Earth Sciences Katrina J. Edwards’ discoveries centered on life forms beneath the ocean floor, also called “intraterrestrial life.” Photo by Phil Channing.

In Memoriam: Katrina J. Edwards, 46

October 29, 2014

Katrina J. Edwards, professor of biological sciences and earth sciences at USC Dornsife, a leader in the field of geomicrobiology, has died. She was 46. Edwards of South Pasadena, California, died peacefully on Oct. 26 after…

Shown is a colony of Trichodesmium bacteria roughly the size of the head of a pin. David Hutchins and his team studied the nitrogen-fixing cyanobacteria as well as Crocosphaera. Photo by Eric Webb.

The Ocean of Tomorrow

July 3, 2013

Climate change may be weeding out the bacteria that form the base of the ocean’s food chain, selecting certain strains for survival, according to a new USC study. In climate change, as in everything, there are winners…

USC Dornsife scientists lead efforts to protect marine life during climate change by combining marine and evolutionary biology in an emerging field that requires new scientific models. Photo © Kristian Taylor 2013.

Battling Oceanic Climate Change

February 15, 2013

Changes to the temperature and chemistry of Earth's atmosphere are causing fundamental changes to the ocean, too. The water is getting warmer and more acidic, and those changes may reconfigure the microbial communities that…

Named Penelope by researchers, this elephant seal is one of many fitted with a GPS tracking tag. These devices can be used to monitor potential climate change indices such as temperature increases. The tags are temporarily attached with glue and do not hurt the seals. ©Nicole Teutschel, courtesy of Tagging of Pacific Predators or TOPP.

Climate Change Hits the Beach

October 15, 2012

“Climate change is already here,” warned Douglas Capone, William and Julie Wrigley Chair in Environmental Studies and professor of biological sciences in USC Dornsife. “And it’s going to affect…

Perfect Vision

Perfect Vision

April 22, 2012

At the Cold War’s dusk, history graduate Wolf Gruner swung a hammer at the Berlin Wall. For years, the East Berliner had been involved in a cultural underground movement against the communist regime. Now Gruner’s…