LOS ANGELES - Prompted by the discovery of a mountain lion known as P-22 in L.A.'s Griffith Park, wildlife advocates say now is the time to build a wildlife passageway over the 101 freeway.

When it was built in the late 1950s, few planners were aware the route through Liberty Canyon was one of Southern California's most important wildlife corridors, linking the Simi Hills to the Santa Monica Mountains. Over the years, the area has been the site of dozens of collisions between motorists and animals.

Beth Pratt, California Director of the National Wildlife Federation, says mountain lions, bears, bobcats and other wildlife need large areas of habitat to survive, and L.A.'s maze of freeways has hemmed large animals into smaller and smaller areas.

"National Park Service scientists have been looking at this issue," she says. "They've collared over 30 cats, and they're getting a pretty good idea of how they move. They've been able to identify this pinch-point on the 101 freeway. They have over 60,000 GPS points showing the mountain lions going up to the 101, and turning around."

But some mountain lions do try to cross at Liberty Canyon, and elsewhere along the 101, and many are hit and killed - similarly endangering drivers.

Pratt says major highways like the Ventura Freeway are a challenge not only because mountain lions keep getting hit by cars, but the abundance of freeways also leads to reduced genetic diversity, and even inbreeding among wildlife in the region.

She says with such an extraordinary amount of urbanization along on the edge of wildlands in Los Angeles, wildlife crossings are one way damage done to wildlife populations can begin to be repaired.

"What it's really doing is restoring balance to an ecosystem that, because of these freeways cross-cutting it, is not there right now, " she says. "You have animals existing on islands of habitat, and that's not good for the Santa Monica Mountains as a whole."

While the design is expected to mirror similar projects already built in the Netherlands, Banff National Park in Alberta, and on the Flathead Reservation in Montana, the Los Angeles crossing has the potential to be the largest wildlife crossing in the world.

"For L.A., that would just show wonderful leadership," says Pratt. "L.A. is sometimes unfairly tagged as a bad environmental player, but if L.A. were to become the site of the largest wildlife crossing in the world - what a statement."

Pratt notes the active and supportive involvement of the California Department of Transportation has been a significant factor in moving the proposed crossing project forward.


get more stories like this via email

A small turtle made popular in the "Kung Fu Panda" movies could soon be added to the endangered species list. Iowa wildlife advocates are working to restore it to its native habitat and give the turtle a better chance for survival.

The Blanding's turtle is popularized in the long-running, lighthearted animated movies but its fate is anything but funny. The U.S. Fish and Wildlife Service will decide in coming months whether to list it on the endangered species list. Officially, fewer than 3,000 Blanding's turtles are left in Iowa.

Karen Kinkead, Wildlife diversity program coordinator for the Iowa Department of Natural Resources, said they are a cryptic species and hard to count but are easy to identify when you spot one.

"They're kind of this drab, olive green-grey color. Their shell is shaped kind of like a helmet. They are sort of nondescript," Kinkead outlined. "But then you see this bright yellow chin and the way that their lower jaw is formed it makes it look like this is an animal that is always smiling."

Decades of habitat loss and predation have already put the Blanding's turtle on the threatened list in Iowa. A partnership between the state DNR, Iowa State University and the Blank Park Zoo in Des Moines just hatched nearly five dozen baby Blanding's turtles researchers will raise until adulthood, then tag with telemetry gear to track them in the wild.

Kinkead pointed out the zoo is "head-starting" the turtles by hatching and keeping them in the zoo over the winter, instead of allowing them to hibernate.

"They keep them awake and keep feeding them so they grow larger," Kinkead explained. "Then when they're released into the wild the next summer, they're a bigger size."

Kinkead added being bigger and more mature makes the turtles less vulnerable to predators once they are released.


get more stories like this via email

People are probably happy to hear two orphaned mountain lion kittens have been rescued and will find new homes at the Oregon Zoo but sharing space with them in the wild is a different story.

While the kittens are safe, there are different ideas about how much to protect wild mountain lions.

Brent Lyles, executive director of the Mountain Lion Foundation, said although they are often feared, the large cats should be protected for the role they play in maintaining healthy ecosystems.

"The carnivores that are at or near the top of the food chain have been shown, again and again over the decades, to be critically important to the vibrancy and long-term stability of food webs in any environment," Lyles pointed out.

Mountain lions, like other keystone predators, help maintain balance in an ecosystem by controlling herbivore or plant-eating populations, which benefits plant growth and overall biodiversity. Lyles noted the deer and elk carcasses they leave behind also provide food for hundreds of other species.

However, not everyone is prepared to live in proximity to mountain lions. By the 1960s, Oregon's cougar population was nearly wiped out. Protections have since allowed their numbers to rebound but by how much remains unclear.

The Oregon Department of Fish and Wildlife permits killing up to 970 cougars annually, a quota some biologists believe is excessive. Lyles argued killing too many actually undermines safety, as stable mountain lion populations are less likely to create problems.

"It's a very common misconception that the best response to human-wildlife encounter is to get rid of the cougar," Lyles contended. "If you get rid of it, things can get ugly and you've just made the community less safe, not more safe."

Lyles explained when a dominant lion is removed, multiple young males could move into the territory, prompting more human and livestock encounters. Though encounters are rare, Lyles added if they happen, you should make yourself look larger and make noise to scare the animal away. Maintain eye contact, avoid running and back away slowly.


get more stories like this via email

With manatee season in full swing, Florida's gentle marine mammals gather in warm waters to escape winter's chill. But these iconic creatures face growing challenges from habitat loss, water pollution and boating collisions.

A new proposal from the U.S. Fish and Wildlife Service aims to address these threats by revising critical habitat protections for the first time in nearly 50 years.

The agency proposes protecting more than 1.9 million acres of critical habitat for Florida manatees and more than 78,000 acres for Antillean manatees in Puerto Rico, marking the first update since 1976.

"It's a long-overdue revision of looking at what is vital habitat for manatees to find warm water, to be able to feed, to travel, to give birth and safely raise their young," said Elizabeth Fleming, a senior Florida representative for the nonprofit Defenders of Wildlife.

Previously, critical habitat was designated based solely on areas where manatees were known to congregate. The proposed changes now incorporate scientific research, identifying areas based on the physical and biological features essential for their conservation.

The updated habitat proposal is open for public comment until Jan. 24.

Katherine Sayler, a southeast representative for Defenders of Wildlife, said the loss of warm-water habitat is a major threat to manatees, many of which now depend on power-plant outflows for warmth. The updated habitat proposal includes natural springs such as Manatee, Fanning and Silver Springs, which stay at 72 degrees year-round and are crucial for their winter survival.

"They need travel corridors to get between these areas of warm water," Sayler explained, "and that's where we think we need to really allow for the public to engage and really make comments on where are these travel corridors."

Seagrasses are vital to the health of marine ecosystems. For more than a decade, the Indian River Lagoon has experienced extensive seagrass meadow loss because of algae blooms associated with nutrient runoff and degraded water quality from septic overflow leaching into the environment.

Fleming added that the proposal is a first step. Still, much more must be done to address concerns, especially in an area known as Mosquito Lagoon, which she described as a critical habitat for manatees.

"This area of the Indian River lagoon that has had some regeneration of seagrass isn't included in the new manatee-critical habitat," she said. "So, we see that as a big omission."

Anyone can comment on the proposed habitat changes via mail or electronically on regulations.gov. Conservationists hope increased awareness during manatee season will strengthen safeguards for Florida's iconic marine mammal.