Science Spotlight

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Recent accomplishments of CDFW's scientific community


Update on Thomas Fire "Tilapia Bears"

A cinnamon-colored bear with light brown paws and muzzle stands in the crotch of a large tree, looking down toward the ground
We have an update on the two black bears that were burned in the Thomas Fire in late December/early January! Both bears were suffering from extensive burns to their paws when they were brought to CDFW’s Wildlife Investigations Lab in northern California. Under the care of CDFW Senior Wildlife Veterinarian Dr. Deana Clifford and Dr. Jamie Peyton of the UC Davis Veterinary Medical Teaching Hospital, the bears were given an unusual experimental treatment involving the use of sterilized tilapia skins as bandages. After the bears were well enough to survive on their own, they were returned to the Los Padres National Forest, as near as possible to where they were originally found. Both have covered many miles and each has been spotted at least once since their release.

Going with the Flow: CDFW’s Water Branch Keeps a Careful Eye on California’s Riverine Resources

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Taking care of California’s fish and wildlife wouldn’t be possible without managing the resources upon which they depend. To that end, CDFW has an entire branch – and many scientific staff – dedicated to the scientific study, and planning and management of water resources.

CDFW Dove Banding Program Seeks Volunteers

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If you have an interest in migratory upland birds – as a hunter, a birdwatcher or just a citizen scientist – there’s a unique volunteer opportunity coming up that will allow you to work hands-on with wildlife, while helping the California Department of Fish and Wildlife collect critical research data that will become part of a national database.

One Step Closer to Reestablishing a New Population of Endangered Winter Run Salmon

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Habitat is the key to the long-term survival of Sacramento River winter-run Chinook in California. Since 1999, CDFW has been working with multiple agencies and private parties on planning efforts to restore the population of these endangered salmon. More than $100 million has been allocated to specific habitat restoration work on Battle Creek, which comprises approximately 48 miles of prime salmon and steelhead habitat.

On the Trail of the Mysterious Sierra Nevada Red Fox

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The Sierra Nevada red fox has been the subject of intensified study by CDFW over the past decade. As they are notoriously tough to track and even tougher to trap, there are many unanswered questions regarding this elusive animal.

For 21 Years, Volunteer Has Kept Tabs on Morro Bay’s Black Brant

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John Roser began hearing the stories shortly after he moved to Los Osos, San Luis Obispo County, on the shores of Morro Bay in the mid-1990s.

CDFW Gets a Jump on Preserving Sierra Nevada Yellow-legged Frogs

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It does not take a leap of faith to believe that CDFW scientists have gained the upper hand in bolstering the population of yellow-legged frogs in the High Sierra.

California Fish and Game, Volume 103, Issue 3

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The latest issue of California Fish and Game, 103-3, makes a significant contribution to the body of research related to longfin smelt in California. A paper titled, “Historic and contemporary distribution of Longfin Smelt (Spirinchus thaleichthys) along the California coast” analyzes and presents observation data for this species from a variety of published and unpublished sources dating from 1889 to 2016.

The Challenges of Studying Roosevelt Elk

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For residents of Humboldt and Del Norte counties, the majestic Roosevelt elk is a common sight. Although Roosevelt numbers were dwindling in California by the 1920s, conservative management strategies and limited hunting opportunities have helped them to rebound. Today, researchers have identified more than 20 distinct groups of elk in these two counties, many of which consist of well over 50 animals.