It's too early to say if the Sierra Nevada red fox is rebounding, experts say.
One of the rarest animals in North America, the Sierra Nevada red fox, has been caught on camera in California's Yosemite National Park for the first time in nearly a century.
Motion-sensitive cameras stationed in the northern part of
the park captured two images—possibly of the same animal—one in December
and one in January.
The little-seen fox was sighted north of the park in 2010,
but no one's seen it inside the park's boundaries since 1916. To say
researchers are excited would be an understatement.
"Knowing that the animal is in the park is huge for us,"
said park wildlife biologist Sarah Stock. "Up until this point we had
observations, but none of them were substantiated."
Why It Matters
The Sierra Nevada red fox (Vulpes vulpes necator)
is incredibly rare, with as few as 50 individuals thought to exist in
North America. Prized for their vibrant coats, red fox populations were
devastated by hunting and trapping during the 19th and 20th centuries.
The fox, which historically ranged throughout the Sierra
Nevada mountains, is now limited to two small populations in California:
one around Lassen Volcanic National Park and another around Sonora Pass.
"Now we know [that population] extends down to northern Yosemite," said Stock.
She added that other human threats, such as livestock grazing, snowmobiling, and logging, could affect the fox's survival.
"Trapping was banned in 1974, so we actually have a pretty long history of impacting this animal," she said.
The Big Picture
It's too soon to say whether the Sierra's population is
rebounding or expanding its range, as researchers are just now getting
to know the elusive Sierra Nevada red.
"At this point we're still gathering the most basic information, still just establishing baselines," Stock said.
The find is meaningful because a Sierra Nevada red fox
population within Yosemite's borders would enjoy the special protections
of a national park, where harmful activities such as logging and
livestock raising are off-limits.
The fox, which is protected by the state of California, is being considered for listing under the Endangered Species Act.
What's Next
Stock says the next step is to continue detecting foxes
using cameras and so-called "hair snares"—bristle brushes that collect
hair samples when a fox walks by.
Scientists test the DNA in these samples, which helps them
learn more about the foxes and their origins—as well as craft a strategy
to help the animal bounce back.
"The more information we can get about this animal, the more that we can learn, and the more we can try to protect it."
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