吉林割包皮环切价格(吉林治疗男科正规的医院) (今日更新中)

LOS ANGELES (CNS) - Newly published research indicates there's an almost one-in-four chance the mountain lions living in the Santa Monica and Santa Ana mountains could become extinct in those areas within 50 years as a result of urban encroachment, inbreeding, vehicle strikes, rat poison and wildfire, it was reported today.In the face of such a dire prognosis, what biologists call an extinction vortex, conservationists are considering a desperate and controversial remedy: capturing pumas in one part of the Santa Anas and trucking them across the 15 Freeway so that they can breed with isolated mates on the other side of traffic."Wildlife managers never want to be a shuttle service for wild animals,'' said Justin Dellinger, senior environmental scientist with the Wildlife Investigations Laboratory at the California Department of Fish and Wildlife, the Los Angeles Times reported. But translocation has potential merit in the short term; after all it helped bring the critically endangered Florida panther back from the brink.Mountain lions are not endangered in California, but groups living in the Santa Monica and Santa Ana ranges now find themselves in genetic peril. Separated by freeways and lethal traffic, they are unable to range freely and are growing increasingly inbred, researchers say.In the Santa Monica Mountains, the 101 Freeway exists as a near impenetrable barrier to gene flow for a group of 10 mountain lions; in the Santa Ana Mountains, the 15 Freeway limits the movement of a family of 20 cougars.Sometimes, the animals manage to cross freeways without getting hit. At least seven cougars have crossed the 15 Freeway near Temecula in the last 15 years, and one sired 11 kittens. The fact that only one managed to reproduce, however, shows how difficult it is to diversify the gene pool in the lions still prowling the range.A population viability study published in the journal Ecological Applications predicts extinction probabilities of 16 to 28 percent over the next 50 years for these lions, which have the lowest genetic diversity documented for the specie aside from the critically endangered Florida panther.Study authors note also that wildfire and disease could result in "catastrophic mortality'' and further hasten the animals' disappearance.However, extinction probabilities were significantly reduced when computer models simulated the influence of two immigrant lions per year in areas blocked by development and freeways, according to a team of researchers that included Winston Vickers, an associate veterinarian at the UC Davis Karen C. Drayer Wildlife Health Center, and Seth Riley, an ecologist with the Santa Monica Mountains National Recreation Area, The Times reported. 2731

LOS ANGELES (AP) — Firefighters struggled Friday to contain a big Southern California wildfire amid shifting winds, forcing authorities to expand evacuations as forecasters extended fire weather warnings into the weekend.The blaze dubbed the Maria Fire erupted late Thursday northwest of Los Angeles during what had been expected to be the tail end of a siege of Santa Ana winds that fanned destructively across the region, but a tug-of-war developed between those offshore gusts and the return of some onshore flow from the ocean."It has been an uphill battle ever since," Ventura County Fire Chief Mark Lorenzen told a midday news conference. "We are finding that the winds are starting to change and that presents its own challenges all by itself."Wind shifts expose new areas of fuel to the fire, bringing "a pretty significant firefight," he said.MAP: CALIFORNIA WILDFIRES 886

LOS ANGELES (AP) — The two Southern California desert communities rocked by last week's powerful earthquakes may have sustained as little damage as they did because they have no tall buildings and many of the homes in one are fairly new and were built to stricter earthquake standards.California's Seismic Safety Commission Chairman Michael Gardner said during the agency's Thursday meeting that the tallest building he knows of in the Mojave Desert towns of Ridgecrest and Trona is the three-story Ridgecrest hospital.The region was struck by a magnitude 6.4 earthquake on July 4, followed by a 7.1 temblor the next day.Ridgecrest, whose 28,000 residents include many who work at the nearby China Lake Naval Weapons Center, is about 150 miles (241.4 kilometers) east of Los Angeles.The nearby mining town of Trona, with a population of about 2,000, was harder hit. Commissioners noted many of its buildings are older.Authorities estimated the damage to both towns at about 0 million, although that could go up as buildings continue to be evaluated.Commissioner Kit Miyamoto said that as inspectors entered some buildings they discovered serious damage to ceilings and other areas that they couldn't see from the outside."Three buildings from the exterior appeared to be fine and probably safe for entry, but upon further investigation the roofs had actually collapsed," he said, adding inspectors may find others in that condition.Gardner said commissioners are also waiting for more information from the Naval base, where security is tight.Miyamoto noted that many of Ridgecrest's homes were built in the 1980s and '90s of more earthquake-resistant materials."As we know, newer California houses hold up really well," he said.That was not so much the case in Trona, where many fireplace chimneys collapsed and other damage was recorded.Buildings flooded when water heaters toppled over and ruptured gas lines sparked fires, and roads, highways and sidewalks also buckled.Trona also lost all of its water for several days when a pipeline carrying it from Ridgecrest ruptured. It was restored Thursday, but San Bernardino County spokesman David Wert said a "boil order" remains in place while water lines are being flushed. Meanwhile, free water was being distributed to residents.Other utilities to both towns have been restored, and Gardner said a local assistance center opened in Ridgecrest on Thursday.The commission itself plans to meet in Ridgecrest next month.No one in the area was killed, although authorities believe the quake may have taken the life of a man in the small Nevada town of Pahrump, 180 miles (289.7 kilometers) away.Troy Ray, 55, of Pahrump was killed when his jack slipped as he was working underneath his car. The shaking from one of the quakes felt from Las Vegas to Los Angeles might have caused the jack to slip, although authorities noted they couldn't be sure.Separately Thursday, California Insurance Commissioner Ricardo Lara and California Earthquake Authority CEO Glenn Pomeroy urged residents statewide to consider buying earthquake insurance that they said could be tailored to meet homeowners' and renters' individual needs and pocketbooks.Contrary to some reports, they said the insurance is available everywhere in California. But new policies won't cover damage resulting from aftershocks related to the series of quakes that began July 4 until 15 days have elapsed.___Associated Press Writer Don Thompson in Sacramento contributed to this story. 3500

LONDON (AP) — The U.K. military seized control of an oil tanker that dropped anchor in the English Channel after reporting it had seven stowaways on board who had become violent. Defense Secretary Ben Wallace and Home Secretary Priti Patel authorized the action in response to a police request. Initial reports confirm the crew was safe. The incident began about 10 a.m. on the Libyan-registered tanker Nave Andromeda. Authorities imposed a three-mile exclusion zone around the vessel. A retired Royal Navy rear admiral told The Associated Press he suspects the stowaways grew violent as the tanker neared port, and the crew retreated to a secure area known as “the citadel” to retain control of the vessel. 715

LOS ANGELES (AP) — Three out of four Americans favor requiring people to wear face coverings while outside their homes to help slow the spread of the coronavirus, including a solid majority of Republicans. That's according to a new poll from The Associated Press-NORC Center for Public Affairs Research. Support for wearing masks is overwhelming among Democrats, while 58% of Republicans say they back such policies. As coronavirus cases rise, about half of Americans now say they're extremely or very worried about themselves or family members becoming infected. The poll also finds that about two-thirds of Americans disapprove of how President Donald Trump is handling the outbreak. 693

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