Tag: scientists

Mysterious Disappearing Bees

  • Brownish-orange bumps on the backs of these bees are Varroa jacobsoni mites, a possible cause of CCD. (Photo courtesy of the USDA)

Millions of honeybees across the country are dying
mysteriously. Entire hives or colonies of bees are
collapsing. Scientists say it’s some new threat. They’re scrambling to find answers.
As Bob Allen reports, bees are crucial in pollinating billions of dollars worth
of crops every spring:

Transcript

Millions of honeybees across the country are dying
mysteriously. Entire hives or colonies of bees are
collapsing. Scientists say it’s some new threat. They’re scrambling to find answers.
As Bob Allen reports, bees are crucial in pollinating billions of dollars worth
of crops every spring:


That fresh crisp apple you bite into for lunch comes from
a bee pollinating an apple blossom, but honeybees in the
U.S. are under tremendous stress. A new threat is
devastating them. It can wipe out entire colonies.


There’s plenty of honey still left in the hives to feed
the bees, but the bees have vanished. Scientists are
baffled. They’re calling it “Colony Collapse Disorder.”


Dennis van Englesdorp is bee inspector for the state of
Pennsylvania. He says the disorder first showed up in his
state last fall. But it’s now threatening the entire
beekeeping industry:


“We could not sustain the level of loss we’re seeing this
year several years in a row. And there are crops that are
90 to 100% reliant on honeybees for pollination. You need
bees for apples. And if you don’t have bees you don’t have
apples.”


A research team at Penn State University has given
themselves until fall to come up with some answers.


On a hilly farm in northern Michigan, Julius Kolarik raises
apples, cherries and honeybees. It’s a sunny day with the
temperature nudging near 50 degrees:


“So, no, it’s a beautiful day for bees. Makes you feel
good when you see bees flying. Makes me feel good
(laughs).”


This is the first time Kolarik has checked his bee yard
since fall. He uses his hive tool to pry the top off each
three-foot high colony to see how the bees are doing:


“We can see that they’re alive and that’s the main thing.”


It used to be considered an embarrassment if a beekeeper lost more
than 10% or so of his bees annually, but things have
gotten a lot tougher in recent years.


Parasitic mites have infested honeybees just about
everywhere. They’ve weakened the bees and left them
vulnerable to diseases and that’s meant annual losses
double what they used to be.


Now on top of that, there’s this new disorder. But Julius
Kolarik is not so sure how new it is. He’s been
raising honeybees since he was a kid:


“We’ve seen some of the same symptoms, so uh, through the
years. Even before we finally said that we have mites, uh.
We were getting unexplained losses. But now it’s come back
again. ‘Cause other years guys have lost whole yards but
left one or two hives.”


Bee researchers say previous outbreaks of colony collapse
were isolated incidents. This time it’s spread across the
country.


Tom McCormick’s small beekeeping operation supplies honey
to local markets in western Pennsylvania. That is, it did
until two years ago. That’s when he says collapsing
disorder killed half his colonies, so he bought more bees
to replace them. They did OK last year, but this spring
he’s looking at an 80% loss:


“To me it doesn’t make sense to go buy more bees and throw
them right back into the same situation without any idea
what the cause is.”


McCormick says two of his beekeeping friends have been
totally wiped out. And they’ve been seeing more than one
thing going on in their hives:


“One, we see hives full of honey and no bees. Totally
gone. We see other situations where we have a nice large
cluster of bees with honey all surrounding them and the
bees dead.”


When he reported this two years ago, he says, state
officials ignored him. Pennsylvania state beekeeper Dennis van Englesdorp admits
he thought McCormick had a serious mite problem at first.


But now researchers at Penn
State are checking other possible
environmental stresses that could be killing honeybees.
van Englesdorp says pinpointing the cause can be just
as difficult with bees as it is with humans:


“You can get a heart attack if you don’t eat well, if you
drink too much, if you smoke, you’re genetically disposed
to a heart attack. It could be one of those factors. It
could be a lot of those factors combining together.”


For this year, he says, the disorder means the number of honeybee colonies will be lower,
but he expects there to be enough to meet pollination
demands.


For The Environment Report, I’m Bob Allen.

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Limited Green Choices From Automakers

The annual season of major U.S. auto shows is underway. And this year, the
hot trend isn’t about horsepower or towing capacity. It’s about saving you
gas at the pump. But as Dustin Dwyer reports, the rhetoric is still ahead
of the reality:

Transcript

The annual season of major U.S. auto shows is underway. And this year, the hot trend
isn’t about horsepower or towing capacity. It’s about saving you gas at the pump.
But, as
Dustin Dwyer reports, the rhetoric is still ahead of the reality:


At the Los Angeles Auto Show, some promises were made by auto companies about
building cleaner, more fuel-efficient cars.


The problem is that, so far, the big gains have only been in a few specialized
vehicles, not
across the board.


David Friedman of the Union of Concerned Scientists says auto companies are making
some progress on cleaner technology. But he says the real test is whether they can
improve efficiency across all types of vehicles.


“Right now if you’re a mother of three and you need to have all those three kids in
car
seats, you probably need a minivan. A compact car won’t work for you. And yet, if you
walk into the showroom today, your choice for a minivan is what 20, 21, maybe 23 miles
per gallon? That’s no real choice.”


The next chance for the automakers to unveil new gas conscious vehicles comes later
this
month at the Detroit Auto Show.


For the Environment Report, I’m Dustin Dwyer.

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Invasive Screening Program Could Save Bucks

The U.S. economy could save billions of dollars a year if the government
would screen for invasive species. Lester Graham reports that prediction is
based on a recent study on screening out problem plants:

Transcript

The U.S. economy could save billions of dollars a year if the government would
screen for
invasive species. Lester Graham reports, that prediction is based on a recent study
on
screening out problem plants:


The study shows when a country screens for potentially harmful species of plants that
could spread like weeds, the cost of the screening is miniscule compared to the cost
of
the damage the plants cause. The study is published in the Proceedings of the
National
Academy of Sciences. It looked at the costs and benefits of Australia’s invasive
species
screening program.


Phyllis Windle specializes in invasive species. She’s with the environmental group
Union
of Concerned Scientists. Windle says it’s long been assumed that screening out pesky
plants would be worth the cost.


“But what this study does is that it really shows that prevention pays off and it
has good
data to illustrate that.”


Factoring in the scale of the U.S. economy to Australia’s, the Union of Concerned
Scientists estimates for an annual cost of a few million dollars, the U.S. economy
could
be spared a few billion dollars in damage by invasive plants.


For the Environment Report, this is Lester Graham.

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New Fish Virus Becoming Long-Term Threat?

Biologists are concerned a new fish virus may become an ongoing threat in the Great Lakes. The virus caused a fish die-off in Lake Ontario and the St. Lawrence River last month. The GLRC’s David Sommerstein reports:

Transcript

Biologists are concerned a new fish virus may become an ongoing threat in the Great Lakes.
The virus caused a fish die-off in Lake Ontario and the St. Lawrence River last month.
The GLRC’s David Sommerstein reports:


Viral Hemorrhagic Septicemia is common in saltwater fish in the Pacific Northwest,
but somehow the virus hopped into the freshwater fish of Lake St. Clair and Lake Ontario
last year. Then, last month, the virus killed hundreds of fish in the St. Lawrence River.
Scientists are trying to determine if the virus is a long-term threat to the Great Lakes
fishery:


“You know, that’s kind of the million dollar question.”


John Farrell directs the Thousand Islands Biological Station. He says many
fish species may become infected with the virus but not show symptoms:


“They may serve as a reservior for the virus. There’s a potential
that the virus could cycle over time, but may be with us for a long time to come.”


Conservation officials are most worried about muskies, trout and salmon – native
fish that anglers love to catch.


For the GLRC, I’m David Sommerstein.

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Commentary – Preach Truth About Global Warming

Some Christians take issue with their conservative brothers in faith when it comes to global warming. Commentator Gary Schlueter says he’s a Christian, but he doesn’t see anything wrong with believing in the science that indicates global warming is partly caused by human activity:

Transcript

Some Christians take issue with their conservative brothers in faith when it
comes to global warming. Commentator Gary Schlueter says he’s a Christian,
but he doesn’t see anything wrong with believing in the science that
indicates global warming is partly caused by human activity:


In Charles Dickens’s A Christmas Carol, we are warned to beware of the two
children under Father Christmas’ long red robe, this boy ignorance and this
girl want, but especially beware of this boy. Race forward a century or so and
we have Reverend Jerry Falwell concluding, “I believe that global warming is a myth.”
I repeat, beware this boy, ignorance!


Reverend Falwell, an influential evangelical Christian leader, is not alone among
his contemporaries in preaching that global warming is a myth, or worse: some clerical
leaders say to believe otherwise could jeopardize one’s salvation.


The Interfaith Stewardship Alliance, the ISA, is a mixed bag of religious leaders,
scientists and policy experts who, through a dark glass, shine a Biblical light on the
issues of environment and development. According to the ISA, “most U.S. evangelicals do not
back the call for regulating greenhouse emissions.” I repeat, beware this boy!


Recently, a group of more moderate Christian evangelical leaders joined together to
form the Evangelical Climate Initiative. They say global warming is real, that humans are
causing it, and that we need to do something about it. The ISA stands firmly against them.
The question is, why?


Why, in the face of hard warnings on the cover of the conservative Time Magazine with headlines
that read to “be worried. Be very worried” about global warming? Why, when the NASA scientist who
warned us 25 years ago that human activity was changing the Earth’s climate now warns
us we have a decade before we pass the point of no return? Got that? Point of no return.
Ten years! Why, against the growing tide of public and clerical opinion that mankind’s
contribution to global warming must be stopped, do they tell their flock to be like
Mad Magazine’s Alfred E. Newman and not to worry?


Are these Mad Magazine evangelicals antagonistic toward science because science brought
us the concept of evolution? Can they be so petty? Or do they see global warming as a way
to fulfill their direst prophecies of gloom and doom? Can they be so proud? Or is it their
sheer greed to gobble up Earth’s resources that brings them smiling sanguinely to the brink of
a disaster so profound the habititability of our entire planet is at risk? Can they be so selfish?
Selfish, proud, petty? Beware this boy!


This Earth is our only real sanctuary, it is a gift of God, how can it be of so
little concern to these anti-Earth evangelicals that they can continue to preach against it,
preach against God’s gift? I conclude, beware this boy, ignorance!


Host tag: Gary Schlueter is a former president of the Virgin Island Conservation
Society.

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Fossils Connect Gap in Evolution

A team of scientists has found fossils that connect a six-million year gap in the chain of human evolution. The GLRC’s Tana Weingartner reports:

Transcript

A team of scientists has found fossils that connect a six-million year gap
in the chain of human evolution. The GLRC’s Tana Weingartner reports:


Scientists found fossils of the species Australopithecus Anamensis in
Ethiopia. The fossils are just over four million years old. Researchers
say the fossils are a clear link between two previously known species of
ape-man.


Dr. William Hart is a team member and a Professor of Geology at Miami
University in Ohio.


“It really shows us evidence of the way early humans evolved in terms of
characteristics of their teeth, as eating habits changed. How other aspects
of their anatomy evolved through time. This is the first time we’ve had
that kind of a snapshot really.”


Similar fossils were first found in Kenya in the 1990’s, but Hart says this
find is special because the fossils are sandwiched between fossils from
the other two species.


The findings were reported in the journal Nature


For the GLRC, I’m Tana Weingartner.

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Scientists Buff Up Their Tinseltown Image

When we go to the movies, we expect to escape from reality. Visiting aliens, time travel, extinct animals coming back to life… that’s the dazzling stuff blockbusters are made of. But not everybody is thrilled by the way scientists look in the movies. The GLRC’s Rebecca Williams has the story of screenwriters who want to make movie scientists a little less weird:

Transcript

When we go to the movies, we expect to escape from reality. Visiting
aliens, time travel, extinct animals coming back to life, that’s the dazzling
stuff blockbusters are made of. But not everybody is thrilled by the way
scientists look in the movies. The GLRC’s Rebecca Williams has the
story of screenwriters who want to make movie scientists a little less
weird:


(Theme music from “Back To The Future”)


So Dr. Frankenstein and Doc Brown from “Back to the Future” are a
little… freaky. But they’re smart… and enterprising. But those kinds of wacky
movie scientists make real life scientists hurl their popcorn.


Researcher Paula Grisafi says movie stereotypes about scientists are actually
worse than those about lawyers or politicians.


“My sense of movies about scientists is that there are maybe 10% good
guys and 90% bad guys. Or not even just bad guys but misguided, even
when they’re trying to be good, they’re usually sufficiently misguided
that what they start out to do turns out wrong.”


Paula Grisafi says there are a few oddballs in real science labs, but she says her peers are really much more normal.


Really — instead of hair frizzing out of control… they have nice haircuts. And they never, ever wear pocket protectors. Grisafi’s day job is at MIT in
Cambridge, but she’s also an aspiring screenwriter. She’s working on
scripts that she says shake up the Hollywood stereotypes.


“These sort of scientist archetypes are Frankenstein and Jekyll and Hyde.
They’re people who were loners obsessed with their work to the point of
being a danger to themselves or to others. It’s usually frowned upon in
science to experiment on yourself.”


Take Jeff Goldblum’s character Seth Brundle, in “The Fly.” When
Brundle tests his transport machine on himself, the experiment backfires.
Brundle becomes a genetic mutant, but he’s kinda proud of it.


“Am I becoming an 185 pound fly? No, I’m becoming something that
never existed before! I’m becoming Brundle-Fly! Don’t you think that’s
worth a Nobel Prize or two?”


Maybe Brundle should’ve stopped when he turned that baboon inside out.


Paula Grisafi admits there are a few movies that show scientists as
somewhat normal people. Jodie Foster’s character in “Contact” for
example. But Grisafi says there aren’t enough to balance out the weirdos.
She says at worst, distorted images of scientists might give audiences the
impression that science is more dangerous than good.


So Grisafi jumped at the chance to be part of a screenwriting workshop
for scientists in LA last summer. It was an intense crash course with
sessions called Plot and Character, and of course, Agents and Managers.


The workshop was dreamt up by Martin Gundersen. He’s an electrical
engineer who’s had a brush with fame. He added credibility to Val
Kilmer’s lasers in the film “Real Genius.”


“I’ve met people now who are young faculty members who have told me
they were influenced by that picture to think seriously about science.”


Martin Gundersen says if the scientists in movies were more appealing,
more people might want to go into the sciences. He says the Defense
Department and companies like Boeing are really concerned that fewer
people want careers in science and engineering. In fact, Gundersen
actually landed money from the Pentagon for the workshop.


But Gundersen admits he’s still testing the theory that scientists can be
screenwriters.


“Oh it’s impossible (laughs). That’s the thing – you can’t promise that
somebody’s going to get their picture made. To me the truest cliché in
Hollywood is that everyone has a script.”


And so, can chemists and engineers possibly compete?


One box office expert says — sure. Paul Dergarabedian is president of
Exhibitor Relations Company in LA. He says scientists have as good a
chance as anyone at selling a script… as long as their stories are
compelling.


“And it’s the more interesting characters who bring that scientific
element, or you have a scientist who’s not the typical nerdy scientist. He
might be more of a sophisticated kind of character in terms of lets say a ladies’
man or something like that you wouldn’t necessarily expect.”


And actually, there is a ladies’ man in one of Paula Grisafi’s scripts. Her
story features two rivals thrown together to figure out why sea life is
dying. The stars of the story are a lovely young marine ecologist and a
hotshot microbiologist from Norway. Grisafi’s been advised that playing
up the romance might help sell the story.


“I guess I was sort of writing for a PG audience. I spent eight years in
Catholic girls’ school so I’m not sure how competent I’m going to be to
write really steamy sex scenes, but I’ll make an effort.”


Grisafi says even if she never sells a script, she’ll still get up at 5 a.m. to
write, and then she’ll put in a full day at the lab.


These new screenwriters hope to prove you don’t have to be a mad
scientist or a loner in the lab to invent movies that sell tickets.


For the GLRC, I’m Rebecca Williams.

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Could Humans Get Chronic Wasting Disease?

  • A deer wasting away from Chronic Wasting Disease. (Photo courtesy of Michigan's Department of Natural Resources.)

A disease that infects deer and elk has been alarming wildlife officials and hunters for years. But now it seems the disease could be more dangerous than previously thought. The Great Lakes Radio Consortium’s Christina Shockley reports:

Transcript

A disease that infects deer and elk has been alarming wildlife officials
and hunters for years, but now it seems the disease could be more
dangerous than previously thought. The Great Lakes Radio Consortium’s
Christina Shockley reports:


Chronic Wasting Disease, or CWD, affects the brain tissue of deer and
elk. Sponge-like holes form in the brains of sick animals. The deer
begin to waste away, become weak, and then die.


Since CWD was discovered in Colorado nearly forty years ago, wild deer
in nine other states have tested positive for the disease. Little is known
about CWD – including how to stop it.


What scientists do know is that the infectious proteins-called prions –
thought to cause CWD are found in the brain and spinal cord areas of
infected animals, but officials still don’t have the answer to the big
question.


Judd Aiken is a professor of Animal Health and Biomedical Sciences at
the University of Wisconsin.


“The ultimate question is whether venison from infected animals, CWD infected
deer, poses a risk to humans. Clearly the first question that needed to be
asked and addressed was whether there was infectivity in muscle.”


Recent findings say there is.


Researchers at the University of Kentucky injected muscle from an
infected deer into the brains of genetically altered mice. The mice
displayed signs of CWD. This is the first time the infectious proteins
blamed for CWD have been found in deer meat.


The finding raises questions about whether eating venison is safe.
Researchers including Aiken say the study is important, but has limits.
For example, he says it doesn’t replicate what would happen in real life.
Plus, he says it’s probably unlikely humans can even get CWD. He says
studies suggest it’s difficult for the disease to jump to other species. Still,
he urges caution. Hunters should get the meat tested before they eat deer
from an area where CWD has been found.


“I, in no way, can advocate the consumption of infected deer, and indeed,
I would suggest due to the limitations of the CW tests, I don’t advocate
the consumption of deer obtained from a CWD endemic area.”


Even if the test comes back negative, Aiken says a negative result isn’t
always accurate, and infected animals in the beginning stages of the
disease can look and act normal.


(Sound of sporting goods store)


John White is a deer hunter from Sheboygan, Wisconsin. He’s in the
hunting section of a nearby sporting goods store. White isn’t too
concerned about Chronic Wasting Disease.


“Not a whole lot of people are worried about it. I mean, when it first
came out, some people were a little leery about it and didn’t want to hunt
that year, but they kinda got over it. I’m not really worried about it being
in the meat at all, because by the time the test comes back I’ll probably
have the deer eaten already and then it’s already too late.”


State wildlife officials say… that’s not a good idea. They recommend that
if you hunt deer in areas where the disease has been found, get the deer
tested before eating it. That message hasn’t changed… since learning the
prions could be in the meat. Some argue… it should change.


John Stauber is with a government watchdog group in Wisconsin, and
is co-author of “Mad Cow USA: Could the Nightmare Happen Here?”
He says officials are keeping quiet about the risk of CWD so they don’t
lose revenue from hunting licenses.


A large portion of state conservation agency budgets are dependent on
fees from hunting licenses. He says all deer that die should be tested for
the disease. Stauber also says CWD is a major human health concern.


“The biggest risk might not be the people who would die from
eating venison, but rather, the people who would die from the
contamination of the blood supply. This is a problem that would unfold
not in days or months or years, but even over decades.”


Stauber says it’s just a matter of time before Chronic Wasting Disease
spreads to people… he says some might even have the disease already,
and not know it.


But researchers like Judd Aiken from the University of Wisconsin say
people shouldn’t over-react.


“People should be concerned, but I don’t want people to panic, either. If
you think you may have consumed venison from infected animals, I don’t
think it’s likely that you’ll ever develop a human prion disease.”


But, Aiken says there’s too much we don’t know about the disease, and
since studies can take years to complete, we might be in the dark for a
while longer.


For the GLRC, I’m Christina Shockley.

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Study: Primates Become Chubby Hubbies

Some human males claim they gain weight when their mates are pregnant. A new study documents a weight gain for some kinds of monkeys when they’re about to be fathers. The Great Lakes Radio Consortium’s Chuck Quirmbach
reports:

Transcript

Some human males claim they gain weight when their mates are
pregnant. A new study documents a weight gain for some kinds of
monkeys when they’re about to be fathers. The Great Lakes Radio
Consortium’s Chuck Quirmbach reports:


Scientists at the University of Wisconsin-Madison weighed about sixty
cotton-top tamarins, and common marmosets during the study. Those
two squirrel-sized primates are known to be monogamous and good
parents.


Researchers found the male monkeys gained another ten percent in
weight when their partners were expecting. Endocrinologist Toni Ziegler
speculates that hormonal changes help the expectant fathers to bulk up
and prepare to lug around their babies.


“There’s a high energetic cost to being the one which these fathers are to
do most of the infant carrying and since they have twins and sometimes
triplets it’s a big responsibility.”


Ziegler says the additional weight only stays on the male monkeys
during the pregnancy… something their human counterparts can only
hope for.


For the GLRC, I’m Chuck Quirmbach.

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Mapping Wooly Mammoth Genome

Wooly mammoths stopped roaming the Great Lakes region 10,000 years ago. But a Canadian scientist has made a breakthrough in reviving their prehistoric genetic code. The Great Lakes Radio Consortium’s David Sommerstein reports:

Transcript

Wooly mammoths stopped roaming the Great Lakes region 10,000 years
ago, but a Canadian scientist has made a breakthrough in reviving their
prehistoric genetic code. The Great Lakes Radio Consortium’s David
Sommerstein reports:


Scientists have studied ancient DNA in the past, but only in fragments.
Geneticist Hendrik Poinar got well-preserved DNA from a wooly
mammoth found in the Siberian permafrost. Poinar is an assistant
professor at McMaster University in Hamilton, Ontario. He and
colleagues at Penn State University have found a way to map the entire
mammoth genome.


“So, it’s really having a Kodak moment on the genes of the past, really,
as they were evolving, and being able to answer fascinating questions
about what makes a mammoth a mammoth, or what makes a Neanderthal a
Neanderthal, and how they differ from a human.”


So far, they’ve completed just one percent of the genome.


Poinar says the discovery begs tough ethical questions, like bringing
extinct animals back to life.


“Creating Pleistocene Park, basically.”


Poinar published the discovery in a recent issue of the Journal Science.


For the GLRC, I’m David Sommerstein.

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