Two Mountain Lions Die With Rat Poison in Systems

5th large cats to die since July

By Keldine Hull

National Park Service (NPS) officials confirmed on Tuesday that two GPS tracked mountain lions, P-30 and P-53, were recently found dead in the Santa Monica Mountains. According to NPS biologists, P-30, a healthy six- year old mountain lion, died from anticoagulant rodenticide poisoning.

“On September 9, biologists hiked into Topanga State Park to look for P-30 after his radio collar sent out a mortality signal. He was found dead with no obvious signs of injury or trauma,” NPS said in a statement. “His carcass was collected and a necropsy by the California Animal Health & Food Safety (CAHFS) Laboratory field office in San Bernardino revealed that he bled to death internally. The report documented that he had severe hemorrhaging in his brain and abdominal cavity. Approximately five liters of unclotted blood was found in his abdomen.”

P-53, a four- year old female mountain lion, was too decomposed by the time biologists found her body on August 15 in Malibu to determine a cause of death. Testing, however, identified compounds of anticoagulant rodenticide in her liver.

“Just about every mountain lion we’ve tested throughout our study has had exposure to these poisons, generally multiple compounds and often at high levels”

Seth Riley, Santa Monica Mountains National Recreation Area Wildlife Branch Chief

“Just about every mountain lion we’ve tested throughout our study has had exposure to these poisons, generally multiple compounds and often at high levels,” said ecologist and Wildlife Branch Chief for the Santa Monica Mountains National Recreation Area (SMMNRA) Seth Riley in a statement. “A wide range of predators can be exposed to these toxicants – everything from hawks and owls to bobcats, coyotes, foxes, and mountain lions. Even if they don’t die directly from the anticoagulant effects, our research has shown that bobcats, for example, are suffering significant immune system impacts.”

News of P-30 and P-53’s death comes months after the loss of other large cats in the NPS study. P-38, a male mountain lion, died from a gunshot wound to the head in early July. P-61, a four- year old mountain lion, was struck and killed by a vehicle while attempting to cross the 405 freeway in September. B-363, an adult male bobcat caught earlier this year, was killed by a vehicle on Kanan Road last month.

According to the NPS, the recent deaths highlight the potentially deadly obstacles mountain lions face in the Santa Monica Mountains and surrounding areas.

Related Posts

THIS WEEKEND: Art and Music Festival Takes Over Third Street Promenade

April 25, 2025

April 25, 2025

Admission is free and open to the public The Third Street Promenade will transform into a lively celebration of creativity...

SMC to Host Free Children’s Concert in May

April 25, 2025

April 25, 2025

The event will feature collaborative performances with local artists, including a Taiko drumming group from Culver City’s El Marino Language...

(Video) The Willows: 30 Years Going Strong

April 25, 2025

April 25, 2025

Founded in 1994, The Willows Community School, located in Culver City, California, is a Developmental Kindergarten through 8th grade non-profit, co-educational...

ASTEME Camps Explore Science, Technology, Math and Engineering

April 25, 2025

April 25, 2025

Many teachers and parents hear this question daily when it comes to schooling: “When am I ever going to use...

Q&A: No Age Limit on Home Care Management & Home Safety, Tips from a Care Manager

April 24, 2025

April 24, 2025

In-home safety issues that go unnoticed — cracked sidewalks, broken railings or uneven flooring for example — are often the root...

CHP Arrests Man Accused of Stealing $5K of Copper on PCH

April 24, 2025

April 24, 2025

The suspect was arrested on suspicion of grand theft and was booked at the Lost Hills Sheriff’s Station A 22-year-old...

Topanga Beach Bus Resumes Service Between West Valley and Santa Monica

April 24, 2025

April 24, 2025

The route now operates once daily in each direction and is being escorted by Caltrans The Topanga Beach Bus resumed...

Beloved Palisades Educator Who Lost Home in Fire Celebrates 97th Birthday

April 24, 2025

April 24, 2025

Jenkins, who was a pioneering Black property owner in the Palisades, has been the focus of community support  Louvenia Jenkins,...

Tony P’s Dockside Grill to Close After 28 Years in Marina del Rey

April 24, 2025

April 24, 2025

In a farewell letter to patrons, owners wrote, “We hope these final weeks are a celebration of all we have...

Four Proposals Compete for SMC Station’s Affordable Housing Future

April 24, 2025

April 24, 2025

The site sits in the Pico Neighborhood, where 83% of trips are by car and nearly half of residents struggle...

Dashboard Shows 28 Zoning Reviews Cleared in Palisades Fire Zone

April 24, 2025

April 24, 2025

County officials say the dashboard is updated frequently and is part of a broader push for transparency A new Los...

Top Freerunners Set to Compete at ‘Kings of the Concrete’ in Venice Beach

April 23, 2025

April 23, 2025

The event marks a new chapter in the evolution of Kings of the Concrete, which began as a digital contest...

Big Blue Bus Stops Can Now be Adopted

April 23, 2025

April 23, 2025

A new effort by Santa Monica aims to supplement city maintenance crews and increase engagement around public transit The City...

(Video) A Myriad of Ways to Unlock Your Beauty Offered at Mirror Mirror Med Spa

April 23, 2025

April 23, 2025

For More Info, Go To Mirrormedspa.com For More Info, Go To https://t.co/KJ6rMHm6wj pic.twitter.com/hRl6JlLSNy — Palisades News (@PalisadesNewsLA) April 23, 2025

(Video) Palisades High School Holds First Day at New Santa Monica Location

April 23, 2025

April 23, 2025

Months After the Wildfires, Pali High Will No Longer Hold Classes Via Zoom and Have Them in a Temporary Santa...

Comments
Leave a Reply