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San Francisco News > Blog > News > Scientists observe carnivorous squirrels in East Bay looking prey for first time
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Scientists observe carnivorous squirrels in East Bay looking prey for first time

By Miles Cooper
News
December 18, 2024
Scientists observe carnivorous squirrels in East Bay looking prey for first time
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(KRON) — Squirrels within the East Bay appeared to have acquired a style for blood, in line with new revealed analysis. Scientists noticed for the primary time California floor squirrels “of all ages and genders” actively looking and consuming voles for a interval of a number of weeks over this summer season.

Revealed within the Journal of Ethology, researchers from the College of California, Davis and the College of Wisconsin-Eau Claire shared extraordinary proof of the carnivorous squirrels. Out of 74 noticed interactions between California floor squirrels and California voles that befell June 10 by way of July 30 at Briones Regional Park in Contra Costa County, 42% concerned energetic looking.

Scientists observe carnivorous squirrels in East Bay looking prey for first timeCalifornia vole – Photograph: Sonja Wild, UC DavisCalifornia floor squirrel with full cheeks (Photograph by: Ron Reznick/VW Pics/Common Photographs Group by way of Getty Photographs)

“Once we started looking, we saw it everywhere,” UC Davis researcher Sonja Wild stated within the examine’s announcement. “We saw that behavior almost every day.”

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Video shared by Wild on YouTube (viewer discretion suggested) reveals situations of the East Bay floor squirrels chasing the vole prey and consuming them.

Though that is the twelfth 12 months of the Lengthy-term Behavioral Ecology of California Floor Squirrels Undertaking, it’s the first time the conduct was seen. Scientists stated that the height of the carnivorous summer season conduct was in the course of the first two weeks of July 2024.

“Squirrels are one of the most familiar animals to people,” the lead writer of the examine and affiliate professor of biology at UW-Eau Claire, Jennifer E. Smith, stated. “We see them right outside our windows; we interact with them regularly. Yet here’s this never-before-encountered-in-science behavior that sheds light on the fact that there’s so much more to learn about the natural history of the world around us.”

Tia Ravara (UW-Eau Claire) and Ryann Su (UC Davis) watching a California floor squirrel – Photograph: Sonja Wild, UC Davis

Information prompt to the scientists that the rise within the squirrels’ looking conduct coincided with the momentary improve within the availability of vole prey. “The fact that California ground squirrels are behaviorally flexible and can respond to changes in food availability might help them persist in environments rapidly changing due to the presence of humans,” Wild stated.

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Scientists stated they’re nonetheless uncertain how widespread the conduct is amongst squirrels, how it’s realized and the way it impacts ecological processes.

The squirrels weren’t noticed looking any mammals aside from voles.

The complete examine could be discovered at this hyperlink.

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TAGGED:BaycarnivorousEasthuntingobservepreyScientistssquirrelstime
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