|
Exploring the beautiful nature of California
California Nature: Wolverine & Badgers
|
|
A series of wolverine photos were taken in
the Tahoe National Forest on March 16, 2008 by a remote sensor
camera. This represents a third wolverine location where a
wolverine was photographed. This camera station is part of the
collaborative effort to obtain additional information on the
whereabouts of the animal and to collect genetics
samples. Wolverines are known to mark food they scavenge on by
leaving scats (feces) or hair nearby. A remotely-triggered
camera takes a photograph when animals visit this detection
station. If a wolverine is photographed, scats and hair are
collected for genetic analysis.
Badgers are
uncommon, permanent residents found throughout most of the state
of California, except in the northern North Coast area.
Suitable habitat for badgers is
characterized by herbaceous, shrub, and open stages of most
habitats with dry, friable soils. Badgers are nocturnal, but have been seen active during the day as well. Badgers commonly feed on mice, woodrats, kangaroo rats, ground squirrels and pocket gophers. They also will eat fish, snakes and lizards.
|
 |
The California Badger is found at numerous
localities in the Yosemite region, from the San
Joaquin Valley on the west to Mono Valley on the
east, and it ranges upward to an altitude of
10,350 feet. Yet it does not occur continuously
over our Yosemite section as do several other
wide-ranging species like the Gambel
White-footed Mouse and Red-shafted Flicker.
Its distribution is controlled by the presence
or absence of flat clear areas of soil, rather
than by temperature or any of the other factors
which limit the ranges of most animals. Thus, on
the uncultivated level lands of the San Joaquin
Valley, the badger is, or was originally,
common; in the foothill districts where there
are but few meadows or other level open spaces,
it is scarce or wanting; in the main forest belt
it is altogether absent; while on the high
meadows near the crest of the Sierras and on the
floor of the Great Basin, east of the mountains,
it is again to be found in numbers
The badger's whole being is organized for digging. The body, especially the
trunk region is thickset and muscular.. The legs are stout and
short so that they can get an effective purchase. Both pairs of feet are
disproportionately large, as compared, for example, with those of a Sierra
Marmot. The claws on all the feet are large, those of the forefeet being
especially long and heavy
|
|
|
In addition, the badger is curiously flattened horizontally in the general
configuration of its head and body; this 'pancake' effect is emphasized by the
greater length of the overhairs along the sides of the body. The ears are short, the eyes rather small, and the head is joined directly onto
the body, with no definite neck region.
When hunting, the badger specializes in a method rarely used by
any of the other carnivores of the region. The other predators
hunt chiefly by stealth; the badger uses its prodigious strength
and special equipment for the purpose and digs its
victims out of their retreats. Nature has provided the badger
with some means for locating accurately the underground nests of
pocket gophers, ground squirrels, and rabbits. Whether smell or
hearing or both function in this, we do not know. But once an
occupied burrow is located, the badger quickly digs out and
feasts upon the luckless inhabitants. |
 |
Wolverines (Gulo Gulo) are the largest land-dwelling weasels.
They have dark fur and a almond-colored stripe that runs down
their back. Large and powerful, they resemble small bear and are
known to attack animals much larger than they are.
For the third year in a row, biologists in California have spotted a wolverine
in forest land in California's Sierra mountains. The species had been extinct in
the state for over 90 years before this male showed up, the the surprise and
excitement of wildlife biologists." They're still trying to figure out how this guy got here. He would have had to
cross some pretty open land in eastern wash and Oregon, which is not their
habitat. We don't know if he was somehow caught and brought here or if he
wandered down on his own," says Mark Pawlicki of Sierra Pacific Industries, on
whose land the animal lives. Sadly, the male, dubbed 'Buddy,' seems to be looking for a mate. But the closest
female wolverines are 800 miles away across both the
Sawtooth and
Cascade mountains,
so despite all his scent marking and posturing, he's unlikely to
find one.
|
|
|
DNA testing of tufts of hair he'd left allowed scientists with the U.S. Forest
Service's Rocky Mountain Research Station to determine that he's definitely
related to the Northern Rocky Mountain wolverine population, and not some
hidden, long-surviving population in California.
Wildlife biologists thought wolverines had been wiped out in
California more than eight decades ago by the fur trade. The
species had not been seen in the state since 1922, when the last
California wolverine was skinned. Turns out this wolverine is
related to wolverines in the northern Rocky Mountains,
particularly Idaho's Sawtooth Range, according to the U.S.
Forest Service's genetics laboratory at the Rocky Mountain
Research Station. That's 600 miles as the crow flies, but a
great deal more on four feet.
Studies in Montana have documented wolverines traveling 19 miles a day, and a wolverine in Norway once moseyed 83 miles in a day, ecologists said.
Still, no wolverine has ever been known to waddle over the Rockies, through the Blue Mountains in northeastern Oregon, across the Cascade Range through Lassen National Forest and into Tahoe, as this one is suspected of doing.
|
|
Bats
Bears
Bison
Bobcat
Chipmunks
& Squirrels
Deer & Elk
Feral Horses
Foxes
Gophers
Gray Wolf
Jaguar
Mice & Rats
Mountain Lion
Porcupine
Rabbits
& Hares
Raccoons
River Otter
Sheep
Shrews, Moles,
& Opossum Skunks
Weasels & Minks
Wolverine and Badger |
|