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VeganMegan
11-17-2003, 10:00 AM
Who Let the Cats Out? (http://www.loe.org/audio/031114/031114who_let_the_cats_out.mp3)

GELLERMAN: It’s Living on Earth. I’m Bruce Gellerman, and coming up: Leo and Moopheus plot an escape from the virtual stockyard called “The Meatrix.” But first – America's most popular pet. Nope, not Fido. It’s Fluffy. Americans own some 70 million cats. But as the number of pets in homes has grown, in some places so has the population of cats without homes. Outdoor cats can be a nuisance to people but they can also carry disease and destroy wildlife. Scientists, health officials, and cat lovers are looking for humane and effective ways to decrease the numbers of homeless cats. But as Bruce Schimmel reports from Milton, Delaware, the felines, at least for now, appear to have the upper claw.

SCHIMMEL: On this small, tree-lined street in rural Delaware sits an old Victorian house which Joannie and her husband Jamie bought for their retirement. But soon after the couple moved in, they discovered their dream home was already partly occupied: by a colony of cats.

JOANNIE: Mother cats would come in under the front porch, and would come all the way in under the front hall, and again have another litter of kittens.

SCHIMMEL: Abandoned domestic cats from the neighborhood were breeding a generation of feral kitten, unsocialized cats that shun human contact. They were living underneath the floorboards.

JOANNIE: We noticed a very strong scent in the sunroom. And we put in new flooring, thinking maybe that would solve the problem. But it didn't ‘cause the cats could go under any layer of flooring and still make quite a smell.

SCHIMMEL: The couple tried sealing the house and surrounded their foundation with mothballs. Five years and many boxes of mothballs later, the colony of cats was gone and the smell has been replaced by another odor.

JOANNIE: We are living with the suggestion or hint of eau de mothballs almost all the time.

SCHIMMEL: Estimates of the number of stray and feral cats in the U.S. range widely, from 10 million to as many as 70 million. Scientists and advocates say the rise – or decline – of the homeless cat population varies with location, time of year, and the effectiveness of cat population control. But perhaps one thing most will agree on is that the large number of strays and ferals is a problem to be reckoned with.

[BELLS RINGING]

OAKES: Hungry? Come on. Here.

SCHIMMEL: In her modest bungalow surrounded by cornfields, Stella Oakes houses about 25 cats. All of the cats Oakes cares for are neutered. Last year, she was taking care of many more.

OAKES: I had 260 cats, maybe more. And, ah, I just can't do it anymore, you know.

SCHIMMEL: Her own health failing, Oakes asked fellow cat-rescuers to relieve her of most of her animals. For years, Stella Oakes enjoyed her reputation as a Cat Lady, taking on animals nobody else wanted. But then, the dumping began.

OAKES: A woman got out of that car and had a carrier. And I seen her pick it up and shake it. She dumped out five baby kittens in a waterhole over there. It had rained the night before.

SCHIMMEL: Oakes believes that people dumped cats on her because they imagined it would be better than another alternative – taking them to the local animal shelter.

OAKES: I would rather see an animal put to sleep at the SPCA than dumped on a road to starve to death, or get run over.

SCHIMMEL: A few miles away, at the local SPCA, the number of cats coming through the door has been increasing steadily for the past several years.

[SQUEAKY DOOR]

LINKERHOF: Here's our reception area, this is where we do the intake.

SCHIMMEL: Lieutenant Gerry Linkerhof runs this state-funded animal shelter. The shelter lacks the funding to address the many complaints about feral and stray cats. Instead, says Linkerhof, several neighboring township hire private cat-catchers to bring in the felines.

LINKERHOF: As you can see, there's a gentleman bringing in a cat right now, in a trap.

[PHONES RINGING]

SCHIMMEL: Cats living outdoors can carry disease, says Linkerhof, so the trapped ferals are segregated from domestic cats in the shelter. Feral cats are generally not sufficiently socialized to be suitable for adoption. The cats on public display here come almost entirely from homes.

LINKERHOF: As you can see, there's this nice little kitten in this cage here [MEOW] Very adoptable.

SCHIMMEL: But, even former housepets, if they're older, will not find new homes, says Linkerhof, pointing at an adult animal.

LINKERHOF: His chances, I'd say, are probably about ten percent chance – one in ten in making it out of here.

SCHIMMEL: Of the 2,900 domestic and feral cats brought to this shelter last year, some 90 percent were euthanized. According to the Humane Society of the U.S., there are no reliable national statistics for the number of cats euthanized yearly.

But while those numbers may be in the millions, some say they appear to be dropping. That's because many animal advocacy groups believe euthanasia is inhumane and may be unnecessary. Dr. Michael Stoskopf is a researcher at the North Carolina State University College of Veterinary Medicine. He says euthanizing ferals to reduce populations does not always work.

STOSKOPF: Cat species is a very pragmatic species. They will do what they have to do to survive. If that means coming nowhere near humans, keeping out of sight, hunting at night, that's what they'll do.

SCHIMMEL: Feral colonies that are thinned out by euthanasia, says Stotskopf, tend to attract new recruits. So, Stoskopf looked at another form of population control growing in popularity among some cat advocates - trapping, neutering and then returning feral cats back to their colonies. His study, which presented recently at an American Veterinary Medical Association Forum, followed over 2,000 cats over a period of six years.

STOSKOPF: All of the colonies where we had done some form of neutering on both the males and the females decreased in size and some of them had gone completely extinct within three years.

SCHIMMEL: But Stoskopf says that some colonies may never go extinct. His study concludes that trap, neuter and return is a viable means of controlling feral cats – but only if it's managed intensively. Others add that domestic cats, if not neutered, should be kept indoors, so that they don't exacerbate the problem.

[CAR DRIVING ON DIRT ROAD]

SCHIMMEL: At the end of a long and unmarked dirt road is a no-kill sanctuary run by Sue Gonzalez. The Good Shepherd Cat Sanctuary is hard to find, says Gonzalez, and for a very good reason.

GONZALEZ: I am not a cat collector, I never intended to be a cat collector. I hate that.

[SQUEAK OF A GATE LATCH]

SCHIMMEL: This sanctuary houses about 125 cats, and it's currently filled. Gonzalez says she can find homes for about 60, about half of her cats, every month. She and her volunteers offer neutered and inoculated cats for adoption at a nearby pet store every day. The other half of these abandoned cats will remain here permanently to live their lives out in the sanctuary.

GONZALES: You're in the trenches, day in and day out, seven days a week, so you better beware, because you're going to need more than love to run a cat sanctuary.

SCHIMMEL: Whether by no-kill sanctuaries, euthanasia, or managed feral colonies, cats without owners, says North Carolina state's Dr. Michael Stoskopf, will ultimately be treated according to the place they occupy in people's heads and hearts.

STOSKOPF: Cats are amazing animals. They're adaptive, extremely plastic. And depending on your perspective, they're either small gods, or they're invasive, introduced species who shouldn't be there.

SCHIMMEL: And almost all agree that if un-neutered cats continue to be abandoned or are allowed to roam freely, the number of homeless cats and their feral descendents will continue to multiply.

For Living on Earth, this is Bruce Schimmel in Milton, Delaware.

VeganMegan
11-17-2003, 10:02 AM
FLORIDA'S FERALS (http://www.loe.org/audio/031114/031114floridas_ferals.mp3)


GELLERMAN: Florida also has a problem with feral felines. For the past half-century wild cats have been roaming an exclusive community near Miami. Homeowners brought them in to deal with rats, but soon the cat population got out of control. Today, a “trap, neuter and release” program has cut the number of cats to about 500. But critics say the cats are still ravaging wildlife, including an endangered species of rat that lives in a neighboring national wildlife refuge. Joining me is Craig Pittman. He's an environment reporter with the St. Petersburg Times. Hello, Craig.

PITTMAN: Hi.

GELLERMAN: These cats, they sound like they’re living the life of Riley, sort of aristo-cats.

PITTMAN: They have the nicest life of any cat you can imagine. They roam around about a two thousand acre property. They are fed regularly. The folks who live there spend about 75 thousand dollars a year on their care and feeding. And the program they have set up there is probably one of the more sophisticated trap, neuter, and release programs in the country.

GELLERMAN: Well, does the program work to reduce the numbers?

PITTMAN: The folks who run it say, yes it does. But they are unable to completely get rid of the feral cat colony there because they believe – at least part of the problem is the folks who work there, the workman who are building and things like that, bring cats there and drop them off because they know they will be very well taken care of.

GELLERMAN: So, of course, they roam all around, including to the nearby national wildlife refuge.

PITTMAN: That’s the belief of the federal biologists at the wildlife refuge. The endangered Key Largo wood rat population is entirely located within the Crocodile Lake National Wildlife Refuge. And the population of the wood rats there has just plummeted, just since the trap, neuter, and release program began next door at the Ocean Reef Club. And so federal biologists are absolutely convinced that a big reason for that is these cats. Even though they’re being very well fed, nevertheless, because they are predators they are compelled to go over to the wildlife refuge and kill these rats.

GELLERMAN: So, explain to me why you’d want to save a rat.

PITTMAN: Well, they’re a crucial part of the ecosystem. The argument is they’re seed distributers. They are, of course, prey for other animals who are part of the natural system there, owls and so forth. And under our Endangered Species Act they are protected. To the point, in fact, where federal biologists made the decision last year to start a captive breeding program. So, yes indeed, the taxpayers are paying to breed rats right now.

GELLERMAN: How much are we paying?

PITTMAN: It’s about 12 thousand dollars a year right now. It may go up. They’re hoping to eventually have about 24 of them breeding, and then they would want to release them back into the wildlife refuge. But before they do that, they want to make sure that the cats won’t come in and wipe them out again. So, as a result, this past week they actually began putting out traps to try and trap the cats coming over from Ocean Reef.

GELLERMAN: But don’t scientists still have to prove that these wild cats are killing the rats?

PITTMAN: Well, that’s what they’re hoping that trapping program will do. The cats that have been taken in and cared for by the Ocean Reef program all have a particular marking on them that show that they are Ocean Reef Cats. And so if the traps that have been set our around the wildlife refuge catch those cats, they’ll be able to look at them and know, hey, these are Ocean Reef cats.

GELLERMAN: Well, what happens to the wild cats once they’re caught?

PITTMAN: Well, if they trap any of the Ocean Reef cats, then the instructions are to take them back to Ocean Reef where they’ll be cooped up, they won’t be allowed to get out. If they’re just regular cats they’ll be taken to an animal shelter down in Key Largo.

GELLERMAN: Are there any plans to get rid of the entire population of wild cats there?

PITTMAN: I think if you were to propose something like that the folks at Ocean Reef would take up arms to oppose you. They really love their cats there.

GELLERMAN: Craig Pittman is an environmental reporter with the St. Petersburg Times in Florida. Craig, thank you very much.

PITTMAN: You’re welcome.

San
11-17-2003, 05:55 PM
They were supposed to talk about the Meatrix!

bird
01-08-2006, 03:52 AM
I'm sticking this here unless a mod wants to delete it. You try searching for "cat" and "evolution" on VR without running into the cat food threads! :p

DNA Offers New Insight Concerning Cat Evolution

By NICHOLAS WADE

Researchers have gained a major insight into the evolution of cats by showing how they migrated to new continents and developed new species as sea levels rose and fell.

About nine million years ago - two million years after the cat family first appeared in Asia - these successful predators invaded North America by crossing the Beringian land bridge connecting Siberia and Alaska, a team of geneticists writes in the journal Science today.

Later, several American cat lineages returned to Asia. With each migration, evolutionary forces morphed the pantherlike patriarch of all cats into a rainbow of species, from ocelots and lynxes to leopards, lions and the lineage that led to the most successful cat of all, even though it has mostly forsaken its predatory heritage: the cat that has induced people to pay for its board and lodging in return for frugal displays of affection.

This new history of the family, known as Felidae, is based on DNA analyses of the 37 living species performed by Warren E. Johnson and Stephen J. O'Brien of the National Cancer Institute and colleagues elsewhere.

Before DNA, taxonomists had considerable difficulty in classifying the cat family. The fossil record was sparse and many of the skulls lacked distinctiveness. One scheme divided the family into Big Cats and Little Cats. Then, in 1997, Dr. Johnson and Dr. O'Brien said they thought most living cats fell into one of eight lineages, based on the genetic element known as mitochondrial DNA.

Having made further DNA analyses, the researchers have drawn a full family tree that assigns every cat species to one of the lineages. They have also integrated their tree, which is based solely on changes in DNA, with the fossil record. The fossils, which are securely dated, allow dates to be assigned to each fork in the genetic family tree.

Knowing when each species came into existence, the Johnson-O'Brien team has been able to reconstruct a series of at least 10 intercontinental migrations by which cats colonized the world. The cheetah, for instance, now found in Africa, belongs to a lineage that originated in North America and some three million years ago migrated back across the Bering land bridge to Asia and then Africa.

Dr. O'Brien said the cats were very successful predators, second only to humans, and quickly explored new territories as opportunity arose. Sea levels were low from 11 million to 6 million years ago, enabling the first modern cats, in paleontologists' perspective (saber-tooth tigers are ancient cats), to spread from Asia west into Africa, creating the caracal lineage, and east into North America, generating the ocelot, lynx and puma lineages.

The leopard lineage appeared around 6.5 million years ago in Asia. The youngest of the eight lineages, which led eventually to the domestic cat, emerged some 6.2 million years ago in Asia and Africa, either from ancestors that had never left Asia or more probably from North American cats that had trekked back across the Bering land bridge.

Sea levels then rose, confining each cat species to its own continent, but sank again some three million years ago, allowing a second round of cat migrations. It was at this time that the ancestors of the cheetah and the Eurasian lynxes colonized the Old World from the New.

Chris Wozencraft, an authority on the classification of carnivorous mammals, said the new cat family tree generally agreed with one that he had just published in Mammal Species of the World, a standard reference. Dr. Wozencraft, a taxonomist at Bethel College in Indiana, based his classification on fossil and zoological information, as well as on DNA data already published by Dr. O'Brien's laboratory.

Cat fossils are very hard to tell apart, because they differ mostly just in size, and the DNA data emerging over the last decade has helped bring the field from confusion to consensus, Dr. Wozencraft said.

Despite their evolutionary success, most of the large cats are in peril because their broad hunting ranges have brought them into collision with people. "With the exception of the house cat and a few other small cat species, nearly every one of the 37 species is considered endangered or threatened," Dr. Johnson and Dr. O'Brien write in the current Annual Review of Genomics and Human Genetics.

Fewer than 15,000 tigers, cheetahs and snow leopards remain in the wild, they estimate, and pumas and jaguar populations have been reduced to about 50,000 each.

http://www.nytimes.com/2006/01/06/science/06cats.html?incamp=article_popular&pagewanted=print

grog
01-08-2006, 11:52 AM
I'm sticking this here unless a mod wants to delete it. You try searching for "cat" and "evolution" on VR without running into the cat food threads! :p


feel free to start a new thread, it doesn't hurt, honest :p

grog
01-08-2006, 11:54 AM
most successful cat of all, even though it has mostly forsaken its predatory heritage: the cat that has induced people to pay for its board and lodging in return for frugal displays of affection.


so funny

mamaquilla
01-08-2006, 12:37 PM
cool article, thanks for posting :happy: