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Blog: Wildlife Transition Corridors

Discusses the role of transition corridors in preservation of small populations such as local mountain lions.

The Lion's Eye

The Santa Monica Mountains National Recreation Area is a mountain lion habitat. Each lion requires about 100 square miles of living space to provide enough food and roaming room to stay alive. If a lion kills off a deer, then the deer population has to be large enough provide another one a week later, or the lion’s staple food supply will run out. There are about seven lions living in our mountains, give or take one or two. They are extremely competitive and will kill off each other over food and territory. P-1 killed his own mate as well as P-7, his daughter. Males are not into family life and females have a time limit after which they drive off their young, like P-18. Lions need large, open spaces to exist.

The lions are Nature’s indicator of the health of the ecology of the SMMNRA. As top predators, they limit the mule deer population, while the mule deer provide the lions staple food. As long as both play their role, the system works. In places like Michigan and Pennsylvania, the deer populations there are so out of hand that every driver has to pay hundreds of dollars each year for supplemental deer insurance. The predator/prey relationship has become untenable. Thousands and thousands of licensed deer hunters each year cannot keep up with this warping of nature’s balance.

The SMMNRA is like an island for the lions, with Mother Pacific on one side, the 405 and the 101 freeways on two others and the heavily farmed Oxnard plains on the last.  The NPS calls this isolation a ‘fragmentation of habitat’. Only one lion (P-12) has ever come to the island from somewhere else, when he crossed the 101 at Liberty Canyon. Lions wander along game trails at the edge of the freeways, hoping to find a way across. They turn around and go back when they cannot. 8 high speed lanes and 50 foot vertical walls on the 405 are hard to navigate. P-18 tried it at the Getty Center and was taken out by an early morning commuter. While migrating birds can move from summer to winter habitats by air, lion’s movements are limited by the confusion of the city and the vertical barriers and threats provided by mankind.

The lions in the Santa Monicas are all related to one another. Incest is the norm, with fathers (P-12 and P-1) mating with daughters (P-19 and P-11). As a result of inbreeding, the potential for mutations is high. A mutated lion, like a two-headed snake, could not compete, and would most probably die off as soon as it started to move away from its mother. Relatively small infirmities such as those caused by rat poison early in life, have resulted in death for lion cubs, such as P-17.

There is a need, a critical need, then, for new genetic material to be introduced from non-related lions traveling via wildlife corridors. Because P-12 was unrelated to the lions of the Santa Monica Mountains, his mating with P-13, a resident, after arriving in the SMMNRA, provided hope for the future of the population. His mating with his daughter (P-19) was disappointing. Unlike the Ranger /Scientists observing, P-12 does not seem to care much about genetic  potential or the future of his kind.

Many people believe that capturing and removing the lions would cure this problem, as well as others. The problem with relocation is that any place you put them is already the habitat of a group of resident lions.  If it’s a good place for lions, then there will be lions there. Think of an inner city gang expanding into another gang’s territory. The newly introduced lions don’t know the territory. The resident lions know it well and are patrolling it every day. Somebody is going to lose. Also, if the SMMNRA was empty, new lions would most probably re-populate it someday. P-22 did make it to Griffith Park.

There are other lion habitats in Southern California, not too far away. The Simi Hills is such a habitat, as is the San Gabriel Mountain Range and the Los Padres National Forest. Here in Southern California, land where people can live is at a premium and corridors connecting lion habitats are no exceptions.  Pressure from highly profitable real estate interests to build is high. The choice between a lion and someone with a few million dollars in their hand is made easily by someone standing to profit from a 10 percent commission.

It is only through the dedicated activism of conservation organizations that wildlife corridors like the Liberty Canyon Wildlife Corridor near Cheeseboro National Park,  can continue to provide a pathway to the survival of our Mountain Lion population. Support for organizations such as Save Open Space, the Santa Monica Mountains Conservancy, The Mountain Lion Foundation, the Nature Conservancy and the Mountains Restoration Trust, is always appreciated. Without the efforts of these organizations, the Santa Monica Mountains would be a completely different place.

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Marcia Hanscom May 21, 2013 at 12:13 am
As for the budget - when we talk about more than $7-8 MILLION - it's because we have discovered andRead More read staff reports from various agencies that have granted funds to this project. Start with the FIRST $250,000 that was granted by the State Coastal Conservancy to Heal the Bay to hire an engineering firm to plan the project....that was in about 2003, as I recall. EVERYTHING that has been spent on this project in the last 10 years since is what the public wants to see. FOUR state agencies were granted various funds for this project - and two nonprofits - at least that is what we know. Don't forget the $1 million that County Supervisor Yaroslavsky provided from the County of LA. And don't forget the $1 million that some elected official assisted in getting from the US Fish & Wildlife Foundation.
JamieDixon May 20, 2013 at 09:33 pm
I'm sure we can all think of many more publicly beneficial ways to have spent the money that wasRead More spent on the Malibu Lagoon Restoration Project. Wait a second, what does “restoration” mean? Let me look that up. res·to·ra·tion [res-tuh-rey-shuh n] noun 1. the act of restoring; renewal, revival, or reestablishment. 2. the state or fact of being restored. 3. a return of something to a former, original, normal, or unimpaired condition. 4. restitution of something taken away or lost. 5. something that is restored, as by renovating. Nope, it wasn't a restoration because it doesn't look anything like it ever did before. It's more of a customization; chopped (trees and other natural foliage), channeled, lowered (the submerged paths), shaved (of everything living) and much more expensive than the builder thought when he started the project. Anyone who has built a hot rod knows what I’m talking about.
Sulah cat May 20, 2013 at 07:49 pm
For those of you who are hyperventilating over the cost of the lagoon restoration I suggest youRead More consult the state coastal conservancy website. Apparently there was approx. eight million dollars available for the lagoon restoration project. That includes the cost of the lagoon itself, the cost of the parking lot, over a million dollars for the EIR and the cost of five years of monitoring upon completion of the project as well as other expenses. That figure was made known to some of you out there who now feign ignorance. Mrs. Hanscom's 12-30 million dollar figure is ludicrous and an outright lie and she knows it and so do many others. She lies people, she LIES! They may wind up spending less than the eight million so stay tuned.Purrrrrrrrrrrrrrrrrrrrrrrr.
David Armstead May 20, 2013 at 01:26 pm
the People of Malibu better wake up! this issue with Paradise Cove is only going to get worse. TheRead More city and Paradise Cove are working on an expansion of the parking there. See the link to a recent meeting at the city that is the beginning of Paradise coves expansion. It is very quiet and no one knows but look at the plan. Currently Paradise Cove does not have the proper Zoning to be doing what they do down there. The city thinks by letting them expand that it will get people off the highway so they are in favor but in reality it only puts more money into the pockets of Paradise Cove and people will still park on PCH and Paradise Cove will continue to sends drunks out onto the road to endanger all of us. Speak up! http://www.malibucity.org/download/index.cfm/fuseaction/download/cid/20457/
webecool May 20, 2013 at 03:26 pm
I ate lunch Friday at the Adamson House lawn and nearly 'chuncked out' with the smell of sewage.Read More Uggggg! It was worse than the biggest sewage spill that Paradise Cove ever had in the 15 years living there. I'm not a scientist like everyone else who has been arguing about this project but I know the smell of 8hit when I smell it. Something is seriously wrong. I am a mechanical engineer and it seems to me that all the scientists and smart designers have not taken into account any fluid dynamics. Water flows in, water flows out....water flows through. How hard is that? It seems to me they have designed what is called turbulence!
steve dunn May 19, 2013 at 04:43 pm
All I get on this blog is an ad for verizon
Jessica E. Davis (Editor) May 17, 2013 at 03:51 pm
Love that you are using the message board to ask this question. Does any one have any ideas?
M Stanley May 16, 2013 at 01:33 pm
Thank you for the information Jessica!
Jessica E. Davis (Editor) May 15, 2013 at 05:54 pm
Also, first make sure you are signed in, and if you can't go to the reset password link here:Read More http://malibu.patch.com/forgot_password.
Max May 15, 2013 at 11:03 am
Dear Phil (re: Burt's column), I can’t quite put my finger on it, but, I sense anRead More Eggs-itential undertone to all this. Does the chicken Egg-ist on behalf of the egg or vice versa? Eggs-perience will reveal the truth. To be complete, I must rehash Camus’ “The Play-egg.” Yet, as I recall, in the Book of Eggs-odous, there wasn’t a single Play-egg, but ten of them… so many, in fact, that it seems to many readers to be literally a Dozen Play-eggs. But, then again, I’m not very religious. In fact, many of my colleagues take me for an Egg-nostic. But, they are such Hard-boiled fanatics, that, in fact, their peers surmise they boarder on Egg-lectic. But, as Burt always says in da ‘hood, “Om-letting them be what they want to be.” We, however, have one on Burt: Rumor has it that he fell of the Vegan and had an egg salad… to which he Eggs-claims, “It was a serving of ‘Egg Beaters,’ you Egg-Heads!!”
Jessica E. Davis (Editor) May 14, 2013 at 10:27 pm
From my family: McCluckens
Susan Tellem May 14, 2013 at 07:35 pm
Call them Nuggets, Fricassee, Kiev, Marsala and Enchilada because that's what chickens end up as onRead More the dinner plate. Just sayin'.
TheDr. May 2, 2013 at 11:26 pm
But autumn in old town around Farmington Rd and Grand River is nice as is the season anywhere inRead More Michigan..I love California and the years I lived there.
J. Flo April 27, 2013 at 02:21 am
May Malibu residents, businesses and our City ALWAYS have the foresight and passion to remember andRead More protect > "Malibu was a place I went to with friends to hang out at the beach. But the last few years, its become a place I often go to by myself as a little escape zone. Whenever I have need to clear by head and level my shoulders, I head out to Malibu for a little mini-vacation. Whenever, like Ishmael, it feels like a damp, drizzly November in my soul, I fire up my 1965 Chevelle Malibu Super Sport and go see the watery part of the world." Amen.
Darcy Miller April 27, 2013 at 12:43 am
I'm from Farmington, MI and I live in Calabasas now, off Mulholland Highway, for the same reason.Read More Beauty all around...
Sulah cat May 16, 2013 at 03:18 pm
MT-------still engaging in blatant hyperbole. Aldo Leopold van de Hoeck is not! Jacques, thanksRead More for the offer but no thanks. You'll just have to do it yourself. It's difficult to respond to a remark that has no sense. Puuuuuuuuuuur
Jacques Mehoff May 3, 2013 at 07:30 pm
I don't know why Sulah Cat would talk about CeCe in such a way, I thought they were friends......
Jessica E. Davis (Editor) May 3, 2013 at 07:24 pm
Thanks all for the love. I think I learned my lesson about taking time off though! It's been a busyRead More week back.
J. Flo April 10, 2013 at 12:51 am
We also use Havahart traps. They are gentle and humane, we can easily transport the little crittersRead More away from our population. We've done this successfully at least 20 times! Shared them with countless Malibu friends who've also successfully and humanely cured their rodent issues.
Maureen Haldeman April 9, 2013 at 02:29 pm
Many complain but do nothing more ... and it is only by action that something gets accomplished. IRead More applaud The Malibu Agricultural Society for persevering on this critical issue and thank the local businesses that removed the rat poison from their shelves. We really can all make a difference. Thank you!
Cece Stein April 9, 2013 at 01:56 pm
Dittos Kian Well said and thanks for your compassion .
J. Flo April 30, 2013 at 02:44 pm
"Although a great many women had entered the men’s room, not a single one emerged."Read More I just choked on my coffee. This might be the funniest thing I've ever read . . .