Big, Bad Snake Ban?

  • It’s estimated there are already hundreds of thousands of pythons, anacondas and boa constrictors breeding in the Florida Everglades. (Photo Courtesy of US Fish and Wildlife Service)

The Fish and Wildlife Service wants to stop people from bringing giant snakes into the country. Rebecca Williams reports pythons, anacondas and boa constrictors are getting a little too comfortable in the U-S:

Transcript

The Fish and Wildlife Service wants to stop people from bringing giant snakes into the country. Rebecca Williams reports pythons, anacondas and boa constrictors are getting a little too comfortable in the U-S:

It’s estimated there are already hundreds of thousands of pythons, anacondas and boa constrictors breeding in the Florida Everglades.

Ken Warren is with the Fish and Wildlife Service. He says some of the snakes can get up to 20 feet long and 300 pounds. People buy them in pet stores and some release the snakes when they get too big.

It’s become a noticeable problem in the last 15 or 20 years. But the Fish and Wildlife Service is only now starting the process to ban the importation of these snakes.

“It takes a while before you realize the threat. As soon as the threat became pronounced and identified we started to look at the various actions we could take to help get it under control.”

He says it’s getting to be a bigger problem because the snakes are eating endangered species.

For The Environment Report, I’m Rebecca Williams.

Related Links

Seeing Snakes as Worth Saving

  • Biologist Tobi Kiesewalter takes out a black rat snake at the visitor's center at Murphy's Point Provincial Park in Ontario. (Photo by Karen Kelly)

As kids, many of us come to see
snakes as frightening, evil creatures.
In some places, that ingrained fear
has taken a toll on the snake population.
Karen Kelly met up with some folks
who are trying to improve one snake’s
image – before it disappears:

Transcript

As kids, many of us come to see
snakes as frightening, evil creatures.
In some places, that ingrained fear
has taken a toll on the snake population.
Karen Kelly met up with some folks
who are trying to improve one snake’s
image – before it disappears:

(sound of truck, bumping on a road)

George Sheffield drives his truck along the dirt path that leads to his family’s
vacation cottage. He keeps an eye out for long, black snakes.

“It might be a good day to see a snake. It was cold last night so they’ll be
looking for sun today to heat back up.”

Sheffield’s land is one of the few places where black rat snakes still thrive in
Ontario. They’re a threatened species here, partly because people have moved
into their habitat.

But also, because they’re often six feet long, so people get scared and kill them.
The black rat snake is the longest snake in Canada. It’s not poisonous, but it’s a
constrictor that eats small animals.

(sound of walking towards cottage)

Once we’re at Sheffield ‘s camp, he checks out one of the snakes’ favorite spots
– the roof of his cottage.

“The one time, there 3 or 4 out on the roof, with portions of others, with their
heads or tails sticking out of soffits. So they do inhabit the cottage. I wish they
didn’t, but until I fix it, I can’t blame them.”

Sheffield is one of a growing number of landowners who are trying to protect
the black rat snake. They’re putting up nesting boxes in fields and wooded
areas to give the snakes a warm and safe place to spend the winter.

But the biggest challenge is just convincing people not to kill them.

Kiesewalter: “Do you want to hold the snake?”

Children: “He’s pretty heavy.” “He feels kind of like rubber.”

Tobi Kiesewalter is a biologist at Murphy’s Point Provincial Park in
southeastern Ontario. It’s used by as many as 500 black rat snakes – as well as
a lot of campers, swimmers, and boaters.

It’s a perfect chance to teach people about the snake. So every day, Kiesewalter
takes a rat snake out of a cage in the visitor’s centre and tries to persuade people
to leave them alone.

“I hear about it all the time, people coming and telling us about how their dad
had killed snakes before. Kids will tell you anything. And, as with many
reptiles, the loss of even one mature adult can cause a dip in population because
we know they’re only reproducing every two years.”

There’s a lot of effort to help this snake. Culverts are dug under highways to
give them a safe route back and forth. There are road signs that say, “Please
brake for snakes.” There’s even an adopt-a-snake program.

But the fact is, the black rat snake isn’t in danger in other parts of North
America. So why save it here?

For George Sheffield, the answer is simple.

“I grew up with them here, I think it would be a shame if man’s activities
caused the end of another species in another area. We’ve already done way too
much to degrade the environment and the number of species, so anything
anybody can do is good.”

For The Environment Report, I’m Karen Kelly.

Related Links

Pet Pythons on the Loose in Florida

  • JD Willson holding a juvenile python. (Photo by Samara Freemark)

Foreign animals that get released
in the wild usually don’t spark that
much interest. But when that species
is a giant snake, well, most people
sit up and take notice. That’s the
problem facing the state of Florida,
where Burmese pythons have moved in
to Everglades National Park. Now,
scientists are trying to figure out
if the snakes could spread to the
rest of the country. Samara Freemark reports:

Transcript

Foreign animals that get released
in the wild usually don’t spark that
much interest. But when that species
is a giant snake, well, most people
sit up and take notice. That’s the
problem facing the state of Florida,
where Burmese pythons have moved in
to Everglades National Park. Now,
scientists are trying to figure out
if the snakes could spread to the
rest of the country. Samara Freemark reports:

Meet South Florida’s newest invasive species – the 20 ft long, 200 lb,
Burmese python.

“They’re impressive animals. They’re really impressive animals. And
they’re breeding
like crazy out there.”

That’s python researcher JD Willson. He says the pythons probably started
off as pets –
until their owners got bored of them and dumped them in the Everglades. Now
those pets
have procreated their way into a huge wild population.

“Certainly thousands. Certainly tens of thousands. Some people have gone
as far as to
say hundreds of thousands.”

Willson says most pythons won’t attack humans. But they do pose a big
threat to local
ecosystems.

“These are snakes that are top predators. They eat alligators, they got a
bobcat record, a
couple of white tail deer. These are a predator that native wildlife are
just not prepared to
deal with. They’re not used to having a giant snake around.”

Florida lawmakers are considering putting a bounty on the pythons – paying
hunters to
kill them. And people in neighboring states just have their fingers crossed
that the
pythons won’t spread north.

But no one really knows enough about the snakes to come up with a good
control plan.

Willson and some other researchers are trying to change that.

“This is the python enclosure.”

They’ve built a little artificial habitat in South Carolina, surrounded
it with a really tall
wall, and filled it with 10 pythons. The researchers want to learn more
about how the
snakes behave in the wild, and see if they can make it through a winter
with freezing
temperatures.

(sound of door opening)

The snakes are tagged with radio transmitters, so the scientists can track
them and record
data on how they’re doing.

Freemark: “It’s safe to be in here?”

Bower: “Oh yeah, they’re not aggressive.”

Inside a student volunteer, Rick Bower, is tracking the snakes with a radio
receiver.

“As you sweep it across, you can see how the signal strength changes and
you get an idea
of where the strongest signal is coming from.”

The receiver tells us we’re basically standing right on top of one of the
pythons.

“Yeah, he’s right at our feet. Yeah, he’s down there.”

But we don’t see anything, even when Willson starts jabbing a stick at
the source of the
beeping.

“Somewhere within an 8 foot radius of where we are, there’s an 11 foot
snake. And he’s
hiding in this aquatic vegetation. And not only can we not see him, but
poking in the
vegetation doesn’t seem to be eliciting too much of a reaction.”

He’s a really sneaky snake.

Whit Gibbons is also working with the crew. He says that if the scientists
have so much
trouble tracking down their pythons, in an enclosed cage, using radio
transmitters –
there’s no way bounty hunters could make even a dent in the Everglades
python
population.

“So they find a hundred, so what. There’s a hundred thousand left. No
one’s going to find
100,000. I mean, we’ve got ‘em in a small enclosure, 10 big snakes,
over 75 feet of snake
if you add them up. And you can’t find them.”

Instead, Gibbons says people could opt for a harm reduction strategy- focus
on limiting
the spread of the snakes, try to protect species they threaten.

“One position is, ‘okay, they’re here, here’s what they can do to
us, or to our pets, or to
the wildlife. Let’s learn to live with them.’”

The South Carolina python study ends next summer. JD Willson says he’s
not sure what
they’ll do with the snakes afterwards. But he does know one thing –
they’re not going to
release them back into the wild.

For The Environment Report, I’m Samara Freemark.

Related Links

Abandoned Pet Pythons Invade Everglades

  • Large Burmese pythons are now regularly encountered along trails and visitor areas in the park (Photo courtesy of the National Park Service)

A python native to Asia is popping up in one national park. Kyle Norris reports:

Transcript

A python native to Asia is popping up in one national park. Kyle Norris reports:

The Burmese Python is showing up in Everglades National Park in Florida.

That’s because people who no longer want their pet pythons are releasing them there.

Now these babies are big — usually they between 6 to 12 feet long. And there could be as many as 150,000 pythons in the Everglades.

The snakes are not so much a threat to humans. But they are a threat to animals – especially to endangered ones.

Scott Hardin is an exotic species coordinator. He’s with the Florida Fish & Wildlife Conservation Commission.

“You just got a great big snake, nothing like it, nothing analogous in the native snake fauna in Florida. So it opens up a whole new range of prey that was not susceptible before.”

He says officials are brainstorming ways to deal with the problem.

They’re trying to rig up some really big traps. And they’ve also thrown out the idea of a bounty — basically a cash reward for catching the snakes.

For The Environment Report, I’m Kyle Norris.

Related Links

Ten Threats: Natives Bite Back

  • A big female Lake Erie water snake and a territorial male goby. Snake researcher Dr. Rich King caught the snake out of the lake with the goby in its mouth... the snake was swimming toward shore to enjoy its meal. (Photo by Rebecca Williams)

These ten threats to the Great Lakes are complicated. Researchers are finding new ways that nature reacts to them. For example, alien invasive species often compete for food and crowd out the native species. Once a foreign species takes control in an area, there’s not much anyone can do to get rid of them. But occasionally, a native species will bite back. The Great Lakes Radio Consortium’s Rebecca Williams has that story:

Transcript

Invasive species have been a real problem for native species in the Great Lakes, but some native species are turning tails on the invaders. The Great Lakes Radio Consortium’s Lester Graham is our guide in exploring the series Ten Threats to the Great Lakes:


These ten threats to the Great Lakes are complicated. Researchers are finding new ways that nature reacts to them. For example, alien invasive species often compete for food and crowd out the native species. Once a foreign species takes control in an area, there’s not much anyone can do to get rid of them. But occasionally, a native species will bite back. The GLRC’s Rebecca Williams has that story:


(waves)


These islands in Lake Erie seem like floating Gardens of Eden. They’re
popular with tourists. These islands also really appeal to a rare
snake.


“So there’s a dozen or so of them heading out into the water.”


Meet the Lake Erie water snake. It can grow up to four feet long. Snake expert
Rich King and I are watching a bunch of them swimming away, gray heads
peeking up like periscopes.


These snakes like the lake. They like hanging out in huge piles on docks
and boats, and Rich King’s discovered the snakes love to eat round gobies.


Gobies are invasive fish that are thought to have hitched a ride in the
ballast water of ocean-going ships from foreign ports. The gobies eat the
eggs of native fish such as smallmouth bass, and compete with other fish for
food and nest sites. As gobies have taken over the lake bottom, the native
fish the snakes used to eat are getting harder to find.


“What we’re seeing is that the gobies are apparently a very abundant food
source for the water snakes. Compared to the 1980’s and early 90’s when the
snakes were feeding exclusively on native fish or mudpuppies – the snakes
are now consuming over ninety percent of their prey items are round gobies.”


(Sound of walking over rocks and zebra mussels)


Today, Rich King and his students from Northern Illinois University are
prowling the beaches for snakes. They carry their catches in faded
pillowcases tied to their belt loops. This is the annual snake survey,
Nerodio. That’s Nerodia, the snake’s scientific name, and rodeo, as in
cowboy roundup.


The snake biologists don’t just look under rocks. They dive into the lake
for snakes. They sneak up on piles of snakes and then grab the whole
writhing mass.


The snakes bite. The researchers’ arms are covered in snakebites. The bites aren’t life threatening, but they’re really, really bloody. And then it comes to the job at hand. The biologists are going to force the snakes’ stomach contents out. They call it “barfing the snakes.”


“Some snakes are easier to puke versus others. The water snakes, for
example, they sometimes voluntarily just, bleagh, just puke it out when you
pick them up.”


PhD student Kristin Stanford promises me it’ll be a good show, and we’re in
luck: just down the road, Rich King makes his first prize catch of the day.


“I got a snake with a goby in it. See the bulge: that’s the head end of
the goby. I’m virtually sure it’s a goby. (laughs) So you just very gently work it
forward, and drop it into our ziplock bag. That’s a round
goby.”


King says the snakes are growing faster and getting fatter on their goby
diet. Bigger snakes are less vulnerable to predators, and bigger females
can have more babies.


The researchers are pretty happy about that. That’s because the water snakes
are listed as threatened under the Endangered Species Act. This is the
only place in the world these snakes are found. For years, people were
shooting snakes and bashing them with rocks. Their numbers were getting
dangerously low.


The snake biologists say they understand that a lot of people hate and fear
snakes, but they say now that the snakes are eating gobies, they’re
starting to get a little more popular, especially with fishermen.


(Sound of fisherman casting a spinning rod)


Mark Green fishes for smallmouth bass. Green says it seems like when he
sees more snakes, he has better luck.


“If they’re eating the gobies, that is a good thing. I mean, I’m sure they have their
place… just not at my place.” (laughs)


Green didn’t realize until today that the snakes like to hang out under the
metal rim of the pier, right by his feet. He cringes, but his curiosity
gets the better of him, and he peeks inside one of the pillowcases bulging
with snakes.


GREEN: “When they get ahold of you, do they let go pretty quick, or do they…”


STANFORD: “Typically, but every now and then you get what
I call a “chewer,” and they’ll just sit there and errr-errr-errrng.”


The people and snakes are starting to arrive at an uneasy truce, and the
snakes seem to be well on their way to recovery from all the feasting on
gobies.


The researchers are hoping to learn just how big a bite the snakes can take
out of the goby population, and if, in the long run, it’s good or bad for
water snakes to depend on a foreign fish.


For the GLRC, I’m Rebecca Williams.

Related Links

Lessons Learned From Wetland Rescue?

  • Spotted salamanders - adult and baby. Volunteers collected 14 species of reptiles and amphibians from a half-acre wetland in Ann Arbor, MI. (Photo by David Mifsud)

A lot of new shopping centers and subdivisions have wetlands
at their edges. Sometimes those wetlands are as new as the buildings next to them. Developers often build new ponds when they drain and fill existing wetlands. But experts point out that many man-made wetlands can’t match up to the ecosystems that evolved over hundreds or thousands of years. One group of people is trying something it hopes will be more successful: they’re moving a wetland, piece by little tiny piece. The Great Lakes Radio Consortium’s Rebecca Williams has the story:

Transcript

A lot of new shopping centers and subdivisions have wetlands at their edges.
Sometimes those wetlands are as new as the buildings next to them.
Developers often build new ponds when they drain and fill existing wetlands.
But experts point out that many man-made wetlands can’t match up to the
ecosystems that evolved over hundreds or thousands of years. One group of
people is trying something it hopes will be more successful: they’re moving
a wetland, piece by little tiny piece. The Great Lakes Radio Consortium’s
Rebecca Williams has the story:


Making a new wetland might not seem that hard. You need certain things – a
big hole in the ground, water, plants, some frogs, some snakes. But wetland
ecologists will tell you that it’s hard to get a man-made wetland to be a
replica of a natural one.


But this group of people is giving it a try. Volunteers are leaping after
baby frogs and snakes at the edge of a wetland in Ann Arbor, Michigan.


“He’s fast, look at him go!”


They’re scooping the animals up and putting them in buckets to move them to
a new manmade wetland. The original wetland is small – just half an acre –
but it’s teeming with life. It’s also sitting right where a new high
school is going to be built.


Saving the frogs and snakes and newts is turning out to be a lot of work.
The group’s caught about five thousand adults and babies in all during the last five
months.


Dave Mifsud is a herpetologist; he studies amphibians and reptiles. He’s
in charge of the rescue. Mifsud surveyed the site last year and was
impressed that such a small wetland could hold so many species. He asked
the school district to let him lead a rescue.


“When I first proposed the idea, I was hesitant because whenever I’ve
suggested it in the past, it’s been received with laughs or a blatant no.”


Mifsud says in most construction projects, time means money. He says it’s
hard to get anyone to agree to wait while animals are moved. So, he was
surprised when school officials agreed to the rescue. Mifsud says the
school’s also trying to make the new wetland as much like the original as
possible. They’re moving water, soil, and plants from the old wetland to the
new one.


Randy Trent directs the school district’s environmental services. He says
instead of seeing Mifsud’s proposal as a headache, the school thinks of it
as a way to balance development and conservation.


“It gives us an opportunity to let our students have the history that’s
going on at this site as something to learn from.”


But critics are asking just what the school district is teaching by building
over an irreplaceable site. Ann Arbor resident Alan Pagliere is a vocal
critic of the district.


“There’s going to be a legacy left, there’s going to be a lesson taught, and what are those? You
certainly can’t teach a lesson about the environment by destroying wetlands, but clear-cutting landmark trees. These are decisions that are going to be with us for decades and the people
who are making the decisions will be gone when their terms are over.”


Pagliere says the school should preserve the existing wetland as a living
classroom instead of spending taxpayer money to destroy it and build a new
one.


The animal rescue has its skeptics too. Jim Harding is a wildlife biologist
with Michigan State University. He says moving amphibians and reptiles is
risky.


“An adult frog or adult salamander already has its idea of where home ought
to be; we have anecdotal reports of building new ponds for salamanders
and having them return in the spring to the old site which is now a parking
lot.”


(sound in, back with frogcatchers)


“Oh, I think that was mud.”


“It’s mud, it’s okay… if you’ve got the tadpoles, you can actually just dump them right on the edge.”


But herpetologist Dave Mifsud says he’s giving the frogs and toads a
fighting chance. He says the tadpoles he’s released will think of the new
pond as home. He’s also put up fences around the woods near the new pond. He
hopes they’ll direct the adults back to the new pond in the spring.


“Let’s start releasing the frogs along the edges…”


The frog-catchers’ buckets are loaded with baby frogs. Dave Mifsud’s taking
the cover off his bucket and coaxing frogs out into their new environment.


(Sound of tapping on bucket)


“Come on guys. You’ve been trying to get out of the bucket this whole time. Ah, this is the best part for me! Come on! You’re lucky if…in all my years I’ve seen maybe a handful of spring peeper babies. The fact that we were able to save these guys is incredible.”


Mifsud says it’ll be an uphill fight to make large-scale amphibian rescues
more common, but he says he isn’t known for keeping his mouth shut when it
comes to watching out for anything that leaps or slithers.


For the GLRC, I’m Rebecca Williams.

Related Links

Undercover Agents Catch Wildlife Violators

  • The Blanding's turtle is protected by federal law. It's illegal to buy or sell them. (Photo courtesy of Michigan DNR)

The federal government and several states in the region have used undercover agents and other tactics to crack down on people who violate wildlife protection laws. An Ohio man is the latest person to be caught and convicted by the operation. The Great Lakes Radio Consortium’s Bill Cohen has more:

Transcript

The federal government and several states in the region
have used undercover agents and other tactics to
crack down on people who violate wildlife protection laws. An Ohio
man is the latest person to be caught and convicted by the operation.
The Great Lakes Radio Consortium’s Bill Cohen has more:


A Columbus man has been sentenced to a year in federal prison for illegally buying and selling fifty-three Blandings turtles, protected by federal law. Over the past three years, fifty-seven other dealers in the region have been convicted for illegal trading in turtles, snakes, and lizards.


Jim McCormack of the Ohio Natural Resources Department says Ohio’s population of Blandings turtles has been decimated by wetlands destruction along Lake Erie. He says the thousand or so that survive must be protected so they don’t go extinct and prompt a domino effect on other animals and plants.


“We don’t want to see anything, whether it’s as obscure as some rare lichen or moss to something as showy and obvious and noteworthy as that turtle, to disappear.”


Wisconsin, Minnesota, and Illinois classify the Blandings turtle as “threatened,” and Indiana classifies it as “endangered.”


For the GLRC, I’m Bill Cohen.

Related Links

Saving Rattlesnakes From Development

  • Veterinarian Dr. Tara Harrison operates on an Eastern Massasauga Rattlesnake to implant a radio transmitter for tracking in the wild. (Photo by Chris McCarus)

The Eastern Massassauga Rattlesnake used to be found all over the Midwest. Now there’s only one state where the population is fairly healthy, but even there it’s threatened by rapid development. A group of scientists is trying to protect the snake before all of its habitat is gone.
The Great Lakes Radio Consortium’s Chris McCarus reports:

Transcript

The Eastern Eastern Massassauga Rattlesnake used to be found all over the Midwest. Now there’s only one state where the population is fairly healthy. But even there, it’s threatened by rapid development. A group of scientists is trying to protect the snake before all of its habitat is gone. The GLRC’s Chris McCarus reports:


(Sound of snake rattling)


A team of veterinarians and researchers is pulling an Eastern Massasauga Rattlesnake from a bag. They put the snake on an operating table. Then the doctor snips open the skin.


“Okay, so I’m into the abdominal cavity.”


She’s putting a radio transmitter the size of a AA battery into the snake’s belly. This will allow them to track the snake’s movement in the wild for the next two years.
Kristin Wildman is a graduate student at Michigan State University. She catches and tracks the snakes. She’s involved in a project with federal, state and university biologists. They’re trying to protect the Massasauga.


She thinks of the snakes as being much like herself. She identifies with their personalities. Wildman says these snakes are just modest. They don’t like to attract attention and don’t like to hurt anybody.


“Like with this snake, she’s one of the bitier snakes I have in this study. And she only strikes the tongs – the snake tongs – because I’m grabbing her with the snake tongs. It just kind of gives you an idea. They don’t really strike unless you’re messing with them, unless they have a really good reason to, or unless they’re harassed enough that they feel they need to.”


Although it would rather avoid you, if you’re bitten by a Massasauga Rattler, its venom can kill you.


But it can’t fight people destroying its habitat.


Mike DeCapita is with the U.S. Fish and Wildlife Service. He and other experts say rapid development is the snake’s biggest enemy. It’s not only destroying the snake’s habitat, it’s also destroying other wildlife habitat.


“The Massasauga is sort of an indicator species or a keystone species; perhaps that if we adjust so that we protect the needs of the Massasauga then all those species that use that same type of habitat also are protected.”


The onslaught of development has made the Eastern Massasauga Rattlesnake a candidate for the endangered species list, though it’s not on the list yet.


(Sound of hammering and cement mixing)


A new subdivision is being built in suburban Detroit. It’s just beyond the gate of a park where the research team came to study Massasauga habitat.


(Sound of people walking on a trail and talking)


Andy Hertz works for the State Department of Environmental Quality. He has the authority to refuse a building permit to anyone who could hurt Massasaugas.


“This is part of an effort of making us more aware of the habitat the Massasauga’s found in, so hopefully, we can direct developers and landowners to stay away from these more sensitive areas.”


In the winter, the Massasauga joins the frogs and turtles. They hibernate in marshes about two feet underground. Then, in spring and summer, they’ll seek higher ground for feeding. They can’t survive if they can’t move back and forth between their summer and wintering grounds. The research team has figured out this rule for minimizing damage to the snake’s habitat: don’t tamper with wetlands in winter nor the uplands in summer.


The team is focusing on Michigan to see why the population is the healthiest there. Then perhaps they can understand how to protect the rattlers in the rest of the Midwest where they’re nearly wiped out.


While she’s looking for more snakes, graduate student Kristin Wildman laughs about how a woman once called her to take a Massasauga away from the side of her house.


“We said, ‘Well, we’ll come out and we’ll move it for you.’ And we usually just move it down into the nearest wetland, down the hill. We pull in and she lives on Rattlesnake Drive. I didn’t expect to move out here and have all these rattlesnakes and stuff. It’s like, you live on Rattlesnake Drive. It’s called that for a reason.”


Wildman says when people come into conflict with wildlife, the wildlife almost always loses. If the Massasauga Rattler is going to survive it will take constant attention from all kinds of experts. They’ll have to stop developers from building over the snake’s habitat and threatening its existence.


For the GLRC, I’m Chris McCarus.

Related Links

Snake Habitat Halts Road Construction

A wildlife habitat may force officials to change their plans to connect two roads in Indiana and Michigan. The Great Lakes Radio Consortium’s David Naylor reports: