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Freeway overpass would save California cougars from oblivion
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An architect s Herculean task: Stop Southern California cougars from becoming roadkill
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Major Grant Helping to Make Wildlife Crossing a Reality in Los Angeles County Todd Litman James Brasuell James Brasuell Richard Dion
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Major Grant Helping to Make Wildlife Crossing a Reality in Los Angeles County
The Annenberg Foundation is awarding a $25 million grant to the National Wildlife Federation s campaign to build a wildlife crossing at Liberty Canyon, over the 101 Freeway.
Passages For Wildlife! How To Reduce The Dramatic Effect Of Roads On Biodiversity
By Margaux d’Ambly and Andréa Poiret
Landscape fragmentation is known to be one of the main causes for the decline of biodiversity worldwide. The multiplication of transport infrastructures over the last decades has changed the landscape drastically, heavily affecting natural ecosystems and wildlife. Highways are acting as physical barriers, which hampers wildlife movements and disrupts habitat connectivity. Additionally, collisions with vehicles are direct sources of wildlife mortality, which can be catastrophic to some animal populations.
The “barrier effect”
The survival of animal populations relies on their ability to move freely across the landscape. Indeed, animals are always searching for food, a shelter or a partner to reproduce with. The construction of transport infrastructures enhances a “barrier effect,” induced by the fencing of roads and/or the noise and light pollution gene
P-22 is probably the world s most famous mountain lion.
He made the seemingly impossible 50-mile-trip from the Santa Monica Mountains to Griffith Park, crossing both the 101 and the 405 freeways to get there. It s a feat many fellow mountain lions just don t survive and he s still here, roaming the trails at the ripe old age of (we think) 11.
Local wildlife specialists have been keeping tabs on the puma since his great migration in 2012, and last month they got another chance to check him out when replacing his GPS radio collar something that happens every two years. He looks good for an old cat, says Jeff Sikich, a biologist with the National Park Service s Santa Monica Mountains National Recreation Area. For as much as we can tell from the work-up we give these animals for that hour we have them in our hands, he appeared healthy and fine.
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