Fauna

Bobcats of the Santa Monicas hit hard by the Springs fire

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The wild bobcats that roam the west end of the Santa Monica Mountains have had it hard in recent times. Roads and suburban development have introduced new threats to their habitat, an outbreak of mange took a toll, and biologists are discovering that this year's Springs fire left behind casualties. Last week the National Park Service announced on Facebook that a singed and weary bobcat spotted along trails by hikers after the fire had died. ZevWeb explores the situation:

Several years ago, the bobcat—known simply as B274—had been captured, tagged and monitored with 16 others as part of control group for a landmark study of bobcats in the area’s more urbanized areas, such as Thousand Oaks and Westlake Village. There, the animals had been hit with an epidemic of potentially deadly mange. Researchers theorized that the cats’ immune systems had been compromised by eating rats poisoned with anti-coagulants, the most commonly used method of rodent control. Meanwhile, the control group, outfitted with GPS collars and living in the wilds, showed no evidence of mange or other immune problems.


But, in the end, bobcat B274—and probably many others—couldn’t be saved from another modern-day reality: An estimated 94 percent of wildfires in the Los Angeles region’s mountains are ignited not by nature but people acting carelessly, negligently or maliciously. “Even though these bobcats were in a much more natural area,” Moriarty says, “in reality they were still highly affected by human causes.”

According to investigators, the rampaging Springs fire, which came at an extraordinarily early time in the year, was accidentally caused by an “undetermined roadside ignition of grass and debris,” most likely from a passing vehicle.

Moriarty says that bobcats, which are solitary and territorial, are already stressed because their habitat has been sliced by roads and shrunken by developments. Now, with officials this week warning of fire conditions that look to be the worst in a century, she and other scientists worry that the toll on wildlife could be profound, especially with fires flaring earlier in the year because of worsening drought conditions.



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