Tag: native species

Experimenting With a Global Warming Garden

  • Todd Forrest at the New York Botanical Garden's Ladies Border Garden. (Photo by Brad Linder)

When you think about global warming, you probably think about polar ice caps
melting and rising sea levels. But climate change is also having a more immediate
effect — on gardeners. As average temperatures rise, many gardeners are finding
they can grow non-native plants in their back yards. Brad Linder visited one public
garden that’s been nicknamed “the global warming garden”:

Transcript

When you think about global warming, you probably think about polar ice caps
melting and rising sea levels. But climate change is also having a more immediate
effect — on gardeners. As average temperatures rise, many gardeners are finding
they can grow non-native plants in their back yards. Brad Linder visited one public
garden that’s been nicknamed “the global warming garden”:


Most gardeners know there are some plants they’ll never be able to grow, because
of the climate where they live. But the Earth’s climate is changing, and that means
plants that normally grow in the southern United States are thriving as far north as
New York City:


“This Japanese Flowering Apricot, prunus mume. This is a plant that’s widely
grown further south. It’s actually native originally to China, but it’s beloved in Japan.”



Todd Forrest is vice president for horticulture at the New York Botanical Garden:


“And so what we’ve found with climate change is that this plant survives, because
the winter temperatures are on average warmer. But because there’s variability in
our local climate, it will often have its flowers burned by frost.”



Forrest is walking through the Ladies Border Garden, an experimental section of the
Botanical Garden designed to demonstrate the impact of climate change on plants.
Forrest sometimes calls the Ladies Border “the global warming garden,” because
most of the plants are species that couldn’t have grown in this area a few decades
ago.


Climate change probably has been affecting plants and gardeners for years. But
Forrest says it’s only recently that people have put two and two together and realized
that unpredictable weather patterns are affecting their herb gardens:


“Gardeners at times suffer the sort of head in the sand syndrome. They’re so
obsessed with and attuned to their individual garden and climate. And we’re all used
to being frustrated by the weather. I think for a long time we all just sort of ascribed
whatever change there was or variability to that darn weather again. Acting up.
Raining when it should be dry. Dry when it should be raining. Cold when it should be
warm.”


In some ways, the Ladies Border Garden shows how exciting global warming can
be for gardeners. You can grow all sorts of exotic plants in your backyard if you don’t
have to deal with the long cold winters you’re used to.


Forrest has been able to get dozens of unusual plants to grow in New York, including
Choysia and even a Himalayan Fan Palm. That’s right, a palm tree growing in New
York City.


But just because you can grow non-native plants doesn’t mean you should. Because
foreign plants can easily become invasive species, killing off local plants.
Marielle Anzelone is a botanist and garden designer. Her specialty is working with
local plants. Today she’s planting a native-species garden in a public park:



“All the plants are going to have little signs in front of them that say what they are,
because it’s meant to be educational. People should see a plant, say oh, it’s
gorgeous. Want it. Oh, it’s vibernum nutem. And then run out to their nursery
and get it.”


Anzelone says many people don’t realize how beautiful local plants are. For
example, she says people often buy wreaths made of Asiatic Bittersweet vines —
even though it’s an invasive species that’s been killing off American Bittersweet:


“And people maybe then who hang the wreath outside on their door. A bird comes
and eats the berries and poops it out in Prospect Park or Central Park. I mean, that
is how these things get around. So it’s not just your world in a vacuum and nothing
comes to your garden. I mean, birds travel, insects travel.”


That’s why, under normal circumstances, gardeners have to be careful what they
plant in their backyards. Because non-native plants have a way of spreading and
competing with local plants, and climate change complicates things by making it
easier for invasive species to spread:


“The thing that keeps me up at night is not global warming. It’s extinction crisis. And I
think people think a lot about extinction as being this big dramatic thing. It’s a fire, it’s
an oil spill. But actually it doesn’t work that way. Extinction happens on a small scale
all the time.”



As the climate changes, Anzelone says she understands that gardeners will want to
try new things. But she says they shouldn’t forget about native plants, which feed
native insects and animals.


The New York Botanical Garden’s Todd Forrest admits that the Ladies Border
Garden is both exciting and disturbing. While he can demonstrate that new plants
will grow in New York, he knows that global warming is also killing off plants that
have lived here for thousands of years.


For the Environment Report, I’m Brad Linder.

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Live Animal Import Laws

A recent report accuses the federal government of failing to take simple, inexpensive steps that could reduce the risk of live animal imports. Zebra mussels, Asian carp, and pets that get loose, such as Burmese pythons in Florida, hurt native wildlife and can damage the nation’s economy. Lester Graham talked with Peter Jenkins, one of the authors of the report issued by the Defenders of Wildlife. Jenkins says the U.S. Fish and Wildlife Service is one of the agencies that needs to do a better job screening for invasive species:

Transcript

A recent report accuses the federal government of failing to take simple, inexpensive steps that could reduce the risk of live animal imports. Zebra mussels, Asian carp, and pets that get loose, such as Burmese pythons in Florida, hurt native wildlife and can damage the nation’s economy. Lester Graham talked with Peter Jenkins, one of the authors of the report issued by the Defenders of Wildlife. Jenkins says the U.S. Fish and Wildlife Service is one of the agencies that needs to do a better job screening for invasive species:


Peter Jenkins: They’re charged with protecting native species. They’re charged with enforcing the
Endangered Species Act, which is an important part of this issue because these non-
native species threaten our native species, including threatening endangered species in
many cases.


Lester Graham: In the past, the US Fish & Wildlife Service has been accused of being too
slow to act, even when a problem is pointed out. Would the regulation changes you’re
talking about help speed that process?


PJ: Well, Congress would have to agree to commit more resources to the agency…I mean,
there is only one person, believe it or not, only one person whose job is to assess species
to be listed under that law to keep out of the country. Obviously, we need more than one,
we need some qualified professionals working this area. We don’t need millions and
millions of dollars, but we do need a significant increase, probably five or six or up to ten
professional staff looking closely at these imported animals to assess whether we’re
gonna have problems and which ones need to be restricted.


Now, how’s that gonna be paid for? Well, the industries that are bringing these species in
and that want to benefit from the import trade, whether it be pet or live animals or
biomedical testing or zoos or what have you…Those people bringing these species in
clearly should carry some of the cost of what they’re bringing in and in that way, the
taxpayers don’t get burdened too much.


LG: As you’ve mentioned, this is as much an economic problem as it is an environmental
problem. Why haven’t the dollars and sense of this issue really had an impact on the
politics behind making sure that we can restrict this kind of trade?


PJ: Well, that’s a great question and defenders of wildlife did do a white paper on the
economic impact of animal imports trade. The reason is very simple…the people who
benefit do not suffer the cost when these things go wrong. That is to say, the costs are
suffered by the public in terms of disease or invasive species concern or pests, so these
costs are externalized or passed on to the general public and it’s the taxpayers in the end
who wind up having to pay the costs. On the whole, these species that are brought in,
non-native species, are brought in for the pet trade…That’s by far the biggest reason that
species are brought in. That’s basically a luxury item, that’s not an essential item. Those
that benefit from luxury items should bare the cost.


LG: Now, nature seems to eventually cope with many of these exotic species, even the
invasive species to one degree or another and some people would say that this biological
pollution is nearly impossible to prevent so why fight the inevitable?


PJ: Uh, I don’t buy that argument at all. It’s like saying diseases are natural and people are
going to eventually cope with diseases, so why bother trying to prevent diseases? I mean,
we do it because we want to protect certain values. We want to protect our native species,
we want to protect human health, we want to protect the health of our livestock. Of
course we need to be protective and have adequate standards. I mean, we don’t need to be
operating under a law that was written in 1900 just because some people think it’s futile
to try to deal with this issue…We could cope with it.


HOST TAG: Peter Jenkins was one of the authors of a Defenders of Wildlife report calling on the government to do a better job of screening live animal imports. He spoke with The Environment Report’s Lester Graham. The report is available at www.defenders.org.

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Saving Historic City Parks

  • In October 2006, a surprise snow storm did considerable damage to the trees in the Olmsted Park System. (Photo by Joyce Kryszak)

At one time, cities were little more than stone and brick. But in the mid-1800’s
Frederick Law Olmsted began changing all that. The landscape architect
designed some of the most important park systems in the country. But decades
of neglect and nature’s wrath are threatening Olmsted’s largest park system.
Joyce Kryszak has the story of plans to restore it:

Transcript

At one time, cities were little more than stone and brick. But in the mid-1800’s
Frederick Law Olmsted began changing all that. The landscape architect
designed some of the most important park systems in the country. But decades
of neglect and nature’s wrath are threatening Olmsted’s largest park system.
Joyce Kryszak has the story of plans to restore it:


You’ve no doubt heard of, and maybe even taken a stroll through New York’s
Central Park. It was Olmsted who created that 800 plus acres of sprawling urban
backyard. But Olmsted didn’t just carve out a magnificent green space. He also
carved out a reputation for himself, and a demand for his designs for parks all
over the country. Olmsted’s green thumb-print can be found all the way from
Boston’s Emerald Necklace to Yosemite National Park. Brian Dold is a
landscape architect from Buffalo, New York. He says even his profession is an Olmsted
creation.


“[He] came up with the term landscape architecture and really brought it to a
scale where he could do these major projects. So, he sort of grew
from getting work and the profession sort of took off from there.”


And Dold has plenty of work to do in Buffalo, New York. There, he is
maintaining Olmsted’s first, and one of his largest, integrated park systems.


Last October, a surprise snow storm dumped two feet of heavy snow on the still
leaf-covered boughs of Olmsted’s majestic trees. Many of them splintered under the
weight, leaving an amputated landscape. Ninety percent of the trees were
damaged and hundreds were lost. But devoted park lovers are volunteering to help
the non-profit conservancy plant new trees throughout the six parks and
parkway.


“Woo, that’s a lot of work. All right, you got it.”


John Penfold even climbs up on top of the shoulders of other volunteers to unlash the
branches of a newly planted maple. Penfold says they’re willing to do whatever it
takes to save the parks.


“When the storm hit, kind of saw all the trees fall, so, I think it brought the
community together to realize, we have these trees and we need ’em.”


Before the storm hit, the park system was already in crisis. American Elm
disease swept through, killing the stately trees. Then the city cut money for
maintenance. But now, the non-profit conservancy has come up with a twenty-
year master plan to restore the Olmsted park system. Executive Director
Johnathon Holifield says they have their work cut out for them:


“This system, at one time, was home to about 40,000 trees – 40,000. We’re
down to about 12,000,” said Holifield. “So, we have a long way to go to
truly recapture the Olmstedian glory.”


The sense of urgency is helping the conservancy raise the money and muscle
needs to fully restore Olmsted’s vision. The vision part is where landscape
architect Brian Dold comes in. Dold poured over Olmsted’s plans and he consulted
with other conservancies. It’s his job to make sure that the system returns to the
naturalistic setting Olmsted intended.


“He really tried to make it look like it had naturally occurred. He used like
large open meadows, and dense woodland and pathways through there,
sort of meandering through, sort of creating that Olmstedian landscape
that looks like it could have been there from the beginning of time.”


But Olmsted’s plan will get tweaked a bit. Dold says had some experiments that
didn’t work out so well. Over time, the Norway maples and the Common Buckthorn
trees pretty much took over. Dold says they won’t repeat the mistake:


“We’re not planting any of those trees that aren’t zone hardy and trees that
are put on invasive species lists. Those are pretty much eliminated from
anything we would ever do in these parks. And we are actually
physically removing many of them.”


Instead, Dold says they’ll plant native species. Lots of sugar and red maples,
service berries, eastern redbud and others. 28,000 trees over the next 20 years.
Executive Director Johnathan Holifield believes the new plan would meet
Olmsted’s approval:


“He would be pretty happy and particularly when you look out there and
you see the diversity of use in the park, the volunteer element that we
have. That’s what Olmsted was about – democratic,
egalitarian use and that certainly is represented today.”


So, if you happen to be in a Buffalo Olmsted park this summer, be sure to bring a
picnic basket and blanket, or maybe a shovel and some tree stakes.


For the Environment Report, I’m Joyce Kryszak.

Related Links

Zebra Mussels Mend Hearts

Zebra mussels continue to plague many of the nation’s waterways,
crowding out native aquatic life and aggravating fishermen and
engineers. But Brian Bull reports that the invasive species might play
a key part in the surgery room:

Transcript

Zebra mussels continue to plague many of the nation’s waterways,
crowding out native aquatic life and aggravating fishermen and
engineers. But Brian Bull reports that the invasive species might play
a key part in the surgery room:


The Nerites Corporation specializes in bio-degradable, waterproof
tissue adhesives. The concept is familiar if you’ve ever superglued
your fingers together.


The Madison, Wisconsin company is currently developing an adhesive that
could be used in complex heart surgeries, to seal, attach, or re-join
blood vessels. CEO Thomas Mozer says they’ve based their research on
zebra mussels, which attach themselves to surfaces like ship’s hulls
and water intake pipes.


“They adhere to surfaces underwater in the rather messy environment of
the ocean or lakeshore. Where the zebra mussels attach to surfaces.
The kind of environment where synthetic adhesives made by man – prior
to ours coming along – wouldn’t work.”


Mozer predicts it’ll be about three years before the tissue adhesive is
perfected for use in hospitals and clinics.


For the Environment Report, I’m Brian Bull.

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Green Auto Plants Going Main-Stream?

  • GM will build three new crossover SUVs at the Lansing plant. Production will start this fall. (Photo by Dustin Dwyer)

A new assembly plant from one of Detroit’s Big Three car companies is getting attention for its “green” qualities. Big Three automakers may not rank at the top of most environmentalists’ list for companies of the year. But some say the new auto plant is a sign that environmentally-sensitive manufacturing has finally gone main-stream. It’s not just because building green plants is the right thing to do. Really, it comes down to a different kind of green. The GLRC’s Dustin Dwyer has the story:

Transcript

A new assembly plant from one of Detroit’s Big Three car companies is getting attention
for its “green” qualities. Big Three automakers may not rank at the top of most
environmentalists’ list for companies of the year. But some say the new auto plant is a
sign that environmentally-sensitive manufacturing has finally gone main-stream. It’s not
just because building green plants is the right thing to do. Really, it comes down to a
different kind of green. The GLRC’s Dustin Dwyer has the story:


The first thing you notice about the smell of General Motors’ newest plant is how much
you don’t notice it. The plant smells like nothing at all. Not paint, grease or even that
new car smell. GM says it specifically selected materials for its new Lansing Delta Township
Plant in Michigan to limit indoor air pollution. And there’s a lot more to not notice about the plant.
Like how much space it doesn’t use.


On a tour with reporters, GM Environmental Engineer Bridget Bernal points out that less
than half of the plant’s 1,100-acre lot has been developed. The rest is left green, including
75 acres for habitat preservation:


“And basically in that 75 acres, we have a couple of pretty large wetlands, along with
some smaller wetlands. We have a rather large wood lot. And we’ve got a significant area
that’s being developed as native prairie.”


GM says it only planted native species on the site. And it planned ditches and culverts to
help filter water as it drains into other areas. A quarter of the materials used to build the
facility was recycled. The plant uses 45 percent less total energy than a traditional plant.
And, on the day GM gave reporter tours, it rained. Even that gets used. The water is
collected in cisterns, and used for flushing. GM says the plant saves a total of more than 4
million gallons of water per year.


Put together, all these elements were enough to win GM a LEED Gold Certification from
the U.S. Green Building Council.


Kimberly Hoskin is director of the council’s new construction program. She says she’d
been traveling a lot for work when one of her colleagues asked if she’d be willing to take
a trip to an event Lansing, Michigan.


“And I said, ‘Well, who’s it for? And she said, well, General Motors.’ General Motors, a
factory, is getting a LEED Gold Certification? Yes, I’ll go. Of course I’ll go. This is really
exciting.”


GM is not the first auto company to use green elements in an auto plant design. Ford’s
Rouge Plant in Dearborn, Michigan was built earlier this decade with a 10-acre “living”
roof that helped manage storm water runoff.


But Hoskin says, out of about 560 buildings in the nation that have been certified by the
Green Building Council, only five are manufacturing facilities, and GM says the Lansing
facility is the first auto assembly plant to get Gold, the agency’s top rating.


But for GM, the green elements of the Lansing Delta Assembly Plant aren’t just about the
environment. They’re about cold, hard cash. The lower energy use alone will save GM a
million dollars a year. That gives people like Hoskin comfort that the plant isn’t just a
public relations move by GM and it increases the chances that we’ll see more green plants
in the future.


Sean McAlinden is Chief Economist with the Center for Automotive Research:


“As we slowly replace our old big 3 plants, many of which are very elderly, they’re all
going to look like this. They’re all going to be green plants. In fact, some of them will
keep getting greener.”


That’s good news for places where there’s a lot of auto manufacturing, but many people
are not ready to absolve GM of all of its environmental sins.


David Friedman is with the Union of Concerned Scientists. He says a green plant is nice,
but the real problem is still the product:


“Over eight times the impact on the environment when it comes to global warming is
once that vehicle leaves that plant. That’s the biggest step that we need automakers to
take and to improve the fuel economy of all of their cars and trucks.”


GM, and other automakers, say they are working to make cars cleaner. High gas prices
may force even more changes as sales of big pickups and SUVs drop off. Ultimately, car
makers’ profits could depend on building cleaner cars, just as keeping manufacturing
costs down will depend on having cleaner plants.


That could change the way auto companies think about environmental improvements
because going green will be about more than just doing the right thing, or protecting the
brand image. It will be about protecting the bottom line. What’s sustainable for the
environment will also be sustainable for the business, and both will show a lot more
green.


For the GLRC, I’m Dustin Dwyer.

Related Links

Is Goby Die Off Good News?

Officials say a disease might be killing an invasive species of fish in Lake Ontario and the St. Lawrence River. The GLRC’s David Sommerstein reports:

Transcript

Officials say a disease might be killing an invasive species of fish in Lake
Ontario and the St. Lawrence River. The GLRC’s David Sommerstein
reports.

Where the lake and the river meet, people have been finding dead round
gobies.

“Dozens in some cases, hundreds of dead gobies that have been washing up on shores.”

Steve Litwiler is with New York’s Department of Environmental
Conservation. He says a change in water temperature or a poison could
cause the die-off, but initial sampling suggests some kind of disease.

“Is it a disease that could potentially affect other fish? Fortunately right
now the only fish that are dying appear to be the round gobies.”

If only the round gobies die, this could be a good news story. Round gobies
hitched a ride from Europe in the ballast of foreign freighters. They’ve
displaced native species across the Great Lakes by breeding faster and eating
other fishes’ eggs and young.

For the GLRC, I’m David Sommerstein.

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International Treaty to Combat Invasive Species?

  • The current range of the invasive zebra mussel. The mussel was first spotted in the Great Lakes in 1988 after being dumped overboard by a foreign ship. It has since spread throughout much of the United States.

Cargo ships bring goods that we buy, but they also bring invasive critters in their ballast water. These invaders compete with native species and upset the natural balance. Now, delegates from around the world have drawn up a plan to help stop the spread of these foreign stowaways. The Great Lakes Radio Consortium’s Mark Brush has more:

Transcript

Cargo ships bring goods that we buy. But they also bring invasive critters in their ballast water.
These invaders compete with native species and upset the natural balance. Now, delegates from
around the world have drawn up a plan to help stop the spread of these foreign stowaways. The
Great Lakes Radio Consortium’s Mark Brush has more:


Ships need ballast water to keep them upright when sailing open waters. But often that ballast
water contains foreign species.


The international plan aims to implement guidelines that would clean up the ballast water. The
delegates will now try to get their countries to sign onto the plan.


It will be ratified when 30 countries representing 35% of the cargo shipped sign onto it.


Dennis Schornack is the U.S. Chair of the International Joint Commission. The Commission
monitors the health of the Great Lakes. He says the U.S. can’t wait for ratification and needs to
pass it’s own law now.


“I mean we’re having a new species discovered on the average of one every eight months. And if
the convention goes along an ordinary schedule of ratification it could be up to ten years to fifteen
years before it’s effective worldwide. So, we can’t wait that long.”


Schornack is hoping the international plan will give Congress the framework it needs to pass its
own law this year.


For the Great Lakes Radio Consortium, I’m Mark Brush.

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Invasives Leave Parasites Behind

Plants and animals that come from overseas sometimes out-compete species that are native to the region. Scientists have long debated what makes the invaders so successful. One hypothesis is that invasive species have fewer natural enemies. New research supports this idea. The Great Lakes Radio Consortium’s Rebecca Williams has details:

Transcript

Plants and animals that come from overseas sometimes out-compete species that are native to the
region. Scientists have long debated what makes the invaders so successful. One hypothesis is
that invasive species have fewer natural enemies. New research supports this idea. The Great
Lakes Radio Consortium’s Rebecca Williams has details:


Invasive animals and plants have fewer parasites and diseases than their native competitors.


That’s according to two new studies published in the journal Nature. In one study, researchers
analyzed parasites of 26 invasive species, including the zebra mussel.


Kevin Lafferty is an author of the study. He says when a foreign species invades a new area, it
leaves most of its parasites behind. He says importing those natural enemies might be a good
way to control invasives.


“There’s still several species, on average, about 13 parasite species back in the introduced
species’ home range, that we could consider for biological control, and of course an important
part of that process is to determine which ones might be safe, in terms of not infecting our native
species.”


A second study looked at nearly 500 plants that have been brought into the U.S. Researchers
found that plants that leave behind the most pathogens are the most likely to become invasive.


For the Great Lakes Radio Consortium, I’m Rebecca Williams.

Increase in Households Pressures Environment

An increase in the number of households throughout the world is threatening the environment, according to new research in the scientific journal Nature. The Great Lakes Radio Consortium’s Erin Toner explains:

Transcript

An increase in the number of households throughout the world is threatening the environment,
according to new research in the scientific journal Nature. The Great Lakes Radio Consortium’s
Erin Toner explains:


Researchers studied what they call “hotspot countries” – places where native species are
threatened by human activity. They counted 155-million more households since 1985. The study
says the reason for the increase is because fewer people are living under one roof. The number of
households grew even in countries where the population is going down.


Michigan State University researcher Jack Liu took part in the study. He says households with
fewer people aren’t necessarily more efficient.


“For example, in a two person household you would have one refrigerator. In a four-person
household you also have one refrigerator. So the energy efficiency in the two-person household
would be lower.”


Liu says reasons for the increase in households include the high divorce rate and a drop in the
number of generations living under the same roof.


For the Great Lakes Radio Consortium, I’m Erin Toner.

Trade With Asia to Ship in New Invasives?

  • The Asian longhorned beetle, native to China, is a serious threat to hardwood trees in the U.S. So far, populations of the beetle have been confined to Chicago and New York. Foresters are concerned that more non-native species will be introduced through expanded global trade. Photo courtesy of USDA-APHIS.

Forests in the Midwest may be under siege from exotic species more often in the future… partly because of international trade. The Great Lakes Radio Consortium’s Rebecca Williams explains:

Transcript

Forests in the Midwest may be under siege from exotic species more often in the future… partly because of international trade. The Great Lakes Radio Consortium’s Rebecca Williams reports:

The Asian longhorned beetle is native to China.
The beetle caught a ride to the U.S. in the wooden packing material of
imported goods. So far, the beetle has been found in New York and
Chicago. 


Once a tree is infested with beetles, the best way to stop the beetles from spreading is to destroy the tree.

A National Academy of Sciences study predicts that threats to native species will increase as trade opens up between the U.S. and China. The authors say that China may become a new “donor region” for species that could become invasive.

Entomologist Deborah McCullough is an author of the study.

“You can kind of visualize this whole complex of insects and weeds and plant pathogens in Asia that haven’t had a pathway, they haven’t had a route to be brought to the country yet… and we really don’t know what all could end up coming in.”

Dr. McCullough says because China’s range of climates and plant life are similar to that of the U.S., many species that make it over here have a chance to become established.

For the Great Lakes Radio Consortium, I’m Rebecca Williams.