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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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Just a short thought to get the word out quickly about anything in your neighborhood.
Share something with your neighbors. Write a new post... What's up? Make an announcement, speak your mind, or sell something
Jessica E. Davis (Editor) May 24, 2013 at 04:58 pm
Hi Kim, Can you edit your announcement about the garage sale to include the time and location?Read More Thanks!
Marshall Thompson May 25, 2013 at 12:12 pm
Amen! Love motorcycles, hate noisy, illegal modified exhaust systems.
No More Secrets Beach App
Max May 23, 2013 at 01:54 pm
@hellwood. What you say is true also. Based on your assessment, all sports and visitors to ourRead More parks should be prohibited. Why? After every sporting event, and, after most weekends, I see all forms of trash littered throughout the park, the baseball fields, the parking lots, etc. And, all this in the PRESENCE of trash containers. When I approached a parent that littering is not only illegal; and, that birds mistake pieces of plastic as food which, as a result, kill them as well as their babies; and, that peanut shells attract rodents; and, also that allowing their kids (and, the parents) to litter is NOT a way to instill good habits amongst the children, I was told, "That's why we pay taxes...so that the city workers can clean up this mess." Could it be that some of these parents also own beach homes?
hellwood May 23, 2013 at 11:25 am
@max what you say is all true however, I live at a beach access, and there was minimal trash beforeRead More it was opened to the public. after the gate was opened, the beach and highway were transformed into a dump. after a busy weekend there is crap scattered all over the place, and no way to clean it up. for every jerk homeowner here in malibu, there are at least a hundred visitors who need to be taught some manners. watching people under homes crapping while their dogs crap all up and down, setting up shop on people's decks and stairs with BBQ's and coolers, and using the residents showers and hoses is really getting old. there are no restrooms, no trash cans on the beach, and the county doesn't maintain most of these beaches which means the locals are left with the mess.
Ben Dover May 23, 2013 at 11:23 am
I hope the APP explains to the city people that the sand in front of many of the homes is private toRead More the mean high tide line. Many homeowners have had their property stolen from them due to extortion by the CCC, many have not. I hope the APP also lets these people know that removing creatures from our local tide pools is a no-no, as well as molesting marine mammals.
M Stanley May 21, 2013 at 06:53 pm
Still no official spokesperson for CA State Parks? Not one person that speaks on behalf of theRead More project?? A REAL person who is paid to present facts, who got the contract to do the outreach that was in the budget documentation? Reach Out whoever you are, earn that pay!!!
Sulah cat May 21, 2013 at 06:36 pm
OK. Jamie, here's the deal. The money spent to restore the lagoon came from a pot of bond moneyRead More (voter approved) that was intended to be used ONLY for the maintenance of wetlands here in the state. If that money had not been spent here in Malibu it would have been spent elsewhere in the state on some other wetland. Any other use is a moot point. If you felt you were attacked it was only because you did seem a little obtuse. You first made the hot rod reference. Personally, I'm more into flat sixes than flat heads. Peace and have a good one. Puuuuuuuuuuuuuur.
JamieDixon May 21, 2013 at 04:19 pm
Sulah cat, My posts have demonstrated my belief that the “Malibu Lagoon RestorationRead More Project” is a name that may have been created in order to mislead people into thinking it that the project would be a worthwhile public expense. The idea of restoring the Lagoon isn’t necessarily a bad idea. That being said, I believe the money spent to alter the Lagoon could have been spent in many other ways that would have served the public better. Why do you attack me personally? First, you say I’m not a car guy and then you accuse me being into flat head Fords? Fords, really? Sincerely yours,
Max May 21, 2013 at 10:22 am
Your worst nightmare scenario: I predict that you’d experience brain freeze if you wereRead More having a procedure right here in Malibu at your friendly gastroenterologist’s place just as a smoke alarm went off in his office. You’d be a real quandary, namely, “When, what, where and how to evacuate?” In this case, the Santa Ana winds would blow from inside, as well as outside, the doctor’s office, in which case, both you and the good doc would evacuate pell-mell (or, should I say, pell-smell?). In anticipation of this high-pressure scenario, perhaps it’s in your best interest to hop onto the I-80 and (re) evacuate the 2831.67 miles back East, from whence you came, to avoid this potential sensory overload occurrence. In the meantime, should we get hit with another fire (G-d forbid), our Firefighter heroes, upon entering your home, would exclaim on their megaphone, "OK everyone, if you follow my commands and remain calm, everyone will be safe. Therefore, in accordance with International Red Cross protocol and common-sense guidelines, please make way for Burt, the children, the woman, the elderly and, finally, able-bodied men, to evacuate, in that order!"
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'.