Climate Change

White abalone shells ​are​ magnificent structures. Translucent during the marine snail’s juvenile days, the extremely durable shell increases in opacity as the organism ages, gaining its paint-splatter-esque red, brown and white coloring from the algae it eats. 

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Beds of eelgrass (Zostera marina) form an important habitat in coastal regions throughout the northern hemisphere, crucial to many fish and other species and storing vast amounts of carbon. A new study published July 20 in Nature Plants shows that eelgrass spread around the world much more recently than previously thought, just under a quarter-million years ago. The results have implications for how eelgrass could be affected by a changing climate.

UC Davis Chancellor Gary S. May sits down with assistant professor Rachael Bay to talk about the evolutionary adaptations of marine species in response to climate change in this episode of Face to Face with Chancellor May.

People often say things like Phoenix has always been dry; Seattle has always been wet; and San Francisco has always been foggy. But “always” is a strong word. 

All seven of the United States’ abalone species that live on the West Coast are listed as Critically Endangered or Endangered according to the International Union for Conservation of Nature, or IUCN, Red List of Threatened Species. This is the first global Red List assessment of the species. The West Coast listings were based on an abalones assessment led by Laura-Rogers Bennett of the California Department of Fish and Wildlife, or CDFW, and University of California, Davis.

As winter approaches, many species of animals — from bears and squirrels to parasitic wasps and a few lucky humans — hunker down for some needed rest. The northern star coral (Astrangia poculata) also enters a hibernating state of dormancy, or quiescence, during this time. But what happens to its microbiome while it’s sleeping?

Climate anxiety is a valid, natural response to a changing, warming world. In 2020, more than half of Americans reported feeling anxious about climate change’s impact on their mental health, and most of us (67%) are anxious about its impact on the planet.

So what do you do when it’s your job to witness and document climate change?

When we think of the impacts of climate change, the words global warming, sea-level rise, and extreme weather will often come to mind. But another lesser-known, though equally serious, consequence of our anthropogenic footprint is the global acidification of our oceans.

What does it take to study the ocean? It’s a lot harder than you might think, considering most marine research happens in a lab instead of the ocean itself. Imagine you are starting a project at Bodega Marine Laboratory (BML) and given only two weeks with limited funding to set up your study and collect all of the data you need to answer your research question. Data collection is an enormous task, but have you ever thought about the time it takes to replicate ocean environments on land?

Native species in California’s estuaries are expected to experience greater declines as invasive species interact with climate change, according to a study from the University of California, Davis.

The study, published in the Ecological Society of America’s journal, Ecology, said these declines are expected not only because of climate-related stressors, but also because of the expanding influence of new invasive predators whose impacts are occurring much farther up the estuary.