Whooping Cranes Not Hatching

  • One of the goals of the Partnership is to get more cranes to raise young in the wild, but so far, only one crane chick has been successfully hatched and gone on to migrating. (Photo courtesy of the US Fish and Wildlife Service)

Wildlife experts are trying to bring back a flock of migrating whooping
cranes in the eastern United States. But there’s a problem. Scientists are
having trouble getting the whoopers to hatch chicks in the wild. Chuck
Quirmbach reports – researchers are taking a closer look at the ten-year-old
rehabilitation effort:

Transcript

Wildlife experts are trying to bring back a flock of migrating whooping
cranes in the eastern United States. But there’s a problem. Scientists are
having trouble getting the whoopers to hatch chicks in the wild. Chuck
Quirmbach reports – researchers are taking a closer look at the ten-year-old
rehabilitation effort:

It’s not easy to get whooping cranes to reproduce, but here in Baraboo,
Wisconsin, researchers have had success at getting captive cranes to produce
chicks.

For the last ten years, the Whooping Crane Eastern Partnership has created a
flock of more than 100 whoopers. Researchers hatched the birds
– and trained them to migrate by flying behind ultralight aircraft ….or to
follow adult cranes. The birds now fly between the upper Midwest and
southeastern U.S.

But one of the goals of the Partnership is to get more cranes to raise young
in the wild. So far, only one crane chick has been successfully hatched and
gone on to migrating.

Jeb Barzen is with the International Crane Foundation. He says they can’t
keep supplying the flock with chicks hatched in captivity:

“It’s expensive. it’s expensive in time, expensive in money…expensive in overall conservation effort, because what you put into whooping crane reintroduction you can’t put into other conservation projects at that time. so to be fully successful …you want that population to be
able to survive on it’s own.”

So far, about 16 million dollars has gone into re-introducing whoopers to
the eastern u.s. More than half of that money came from private donors.

The birds’ main summer home is here at the Necedah National Wildlife Refuge
in Wisconsin.

It’s not that the cranes don’t get close to each other. If you watch the cranes here, you can spot single cranes and the occasional couple.

Jeb Barzen pauses to watch two tall white cranes having a territorial dispute:

“Ooh! these birds are threatening each other. that’s a preen behind the wing
threat…that the second bird is doing…so these are not birds of the same
pair.”

Researchers don’t know why the birds are not raising more wild chicks. But
they do have some theories. Even when cranes do make nice and produce an
egg – the relatively young cranes may be too inexperienced to be patient
parents. Black flies may drive the birds off their nest. Or the parents
may be low on body fat and take off to find food.

The crane researchers are gathering data to find out what cranes need for a
successful nesting site. They’re using tracking radios to follow some of the
birds.

Anne Lacy is with the International Crane Foundation. Today she’s driving
around southern Wisconsin listening for the whoopers.

“it’s important to look at what choices they make as a young bird
before they breed…to know how they choose those areas….they need for
water for roosting at night…they need that eventually for nesting.”

This kind of research is being ramped up this spring. That’s because an
independent report raised some concerns about the crane recovery effort.
The report was done by consultants hired by the Whooping Crane Eastern
Partnership. It mentions problems with financial oversight, scientific
coordination, and whether the birds’ main summer home – at the Necedah
wildlife refuge – is the best place for them.

Louise Clemency is with the US Fish and Wildlife Service. And
she is a co-chair of the eastern partnership. She says the crane recovery
effort won’t make any big changes overnight.

“We’re trying to the time to draw the right conclusions so we can
take the right next step.”

Clemency says decisions on the whooping crane experiment could come next
year. In the meantime..she hopes that some crane eggs laid this spring at
the Necedah refuge will hatch.

For The Environment Report, I’m Chuck Quirmbach.

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Bringing a Fish Back From the Brink

  • The American Shad became so rare that hatcheries had to help restore depleted populations (Photo courtesy of the US Fish and Wildlife Service)

A million year old cycle of fish migration almost came to an end in the waters off of the nation’s capital. But a monumental conservation effort has brought them back from the brink. Sabri Ben-Achour explains:

Transcript

A million year old cycle of fish migration almost came to an end in the waters off of the nation’s
capital. But a monumental conservation effort has brought them back from the brink. Sabri Ben-
Achour explains:

I bet you can’t recognize this sound.

It is the sound of a female shad – it’s a type of fish – having its eggs squeezed out into a metal
bowl.

“In the bowl, it looks like applesauce.”
That’s biologist Catherine Lim. We are on a boat in the middle of the Potomac, 20 miles south of
Washington DC, harvesting and fertilizing shad eggs. Lim picks up a male shad and gives it a
squeeze.

“Yeah, he sprayed out there.”

She mixes the brew around and adds water.

“We’ll bag them up and send them to the fish hatchery.”

This is all part of an effort to restore the population of the American Shad. For millions of years,
the large silver-iridescent fish have swum in from the Atlantic and up the rivers of the East Coast
every spring to spawn. They return to the same place where their lives began, guided by a
unique geological odor that seeps from the earth and mountains that feed each river.

Once upon a time – only a century ago – these fish were so numerous they turned the water silver
and made rivers move.

At least that’s what Jim Cummins says, he’s a biologist.

“On the Susquehanna, there were so many of them they created a wave as they came up the
river, a standing wave.”

On the Potomac they fueled entire industries. According to newspaper reports, Washington DC
exported 4 million barrels of salted shad every year in the 1840’s.

“The wagons would come into Georgetown were so heavy that they crammed up the city – I think
it’s the first report of gridlock in Washington.”

The fish fed more than just commerce – they nourish everything from crabs to dolphins. Bald
Eagles actually evolved to time their egg laying early, so their chicks would hatch just as the Shad
and their relatives appeared in the river. And then came overfishing, dams, and pollution.

“In the 1960’s, there were times when the migratory fish came up to spawn in the area and met
that pollution, and hundreds of thousands of them died and made a stinking mess.”

The clean water act was passed in 1972, but by 1980, the fish were almost wiped out. A
moratorium on fishing at the time was too little too late. Water quality gradually improved as
waste water treatment plants were upgraded and aquatic grasses returned. But still, no Shad.

So Cummins began the Shad restoration project.

They had to use several nets – each hundreds of feet long – just to catch one fish. They got help
from fisheries and even elementary schools. Dams were fixed to let fish go around them. The
Shad population exploded.

At a boat house just outside of DC, anglers Steve Bocat and Louis Covax are enjoying success
that up until recently, few alive have seen here.

“It was great we had incredible fishing. I mean, between the two of us, we had, what, 50-60 fish
up to the boat?”

Another sign of success, a pair of Bald Eagles recently returned to the area following the fish –
the first in decades.

For The Environment Report, I’m Sabri Ben-Achour.

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Winter: An Old Friend Returned

As the heart of winter approaches, it’s tempting to withdraw from the outdoor world and wait till spring. But Great Lakes Radio Consortium commentator Tom Springer thinks the forgotten benefits of winter far outweigh the hardships:

Transcript

As the heart of winter approaches, it’s tempting to withdraw from the outdoor world and wait till
spring. But as Great Lakes Radio Consortium commentator Tom Springer thinks, the forgotten
benefits of winter far outweigh the hardships.


Outside my window there’s an old sugar maple, grey and bare against the late autumn sky. I’ve
raked up most of its leaves and spread them as mulch on my vegetable garden. It seems like the
tree and me have nothing better to do than wait for spring.


But for a tree, the real work of winter has just begun. To prepare for frigid weather, trees undergo
a process known as hardening off. Their sap withdraws from the twigs and branches and returns
to the roots. And the tree’s roots will continue to grow until the ground freezes solid.


When it comes to surviving winter, I think trees have the right idea. It’s in their nature to slow
down and focus on interior growth. Unfortunately, most of us don’t do that. Instead of adapting to
winter, we try to escape it. We dash from our heated house into a semi-heated garage. We drive in
heated cars – which often have heated seats and even heated steering wheels – and we work in a
heated … Well, you get the idea.


But what would happen if we tried harder to accept winter on its own terms? Might we be happier
and healthier?


Researchers say that people can get surprisingly acclimatized to winter weather. As our bodies
get accustomed to cold, we shiver less and our skin retains more heat. In Australia, scientists have
studied aborigines who sleep outside naked in cold weather. They don’t get hypothermia. In
Japan, shellfish divers have been known to spend hours in the ice-cold ocean, wearing nothing
more than a cotton swimsuit.


Spending more time outside in winter can even make you happier. That’s good news for the 10
million Americans who suffer from Seasonal Affective Disorder. SAD is a form of depression
that’s triggered by the short winter days. Some people take anti-depressants to fight SAD. Yet
researchers find that many people can overcome it without using pills. They just need to get
outdoors and absorb some authentic daylight.


Do you suppose Mother Nature is trying to tell us something? For 50,000 years of human
history, winter was a time of rest and rejuvenation woven between the cycle of seasons. And I
doubt that 75 years of electric indoor heat has changed that. For instance, our bodies still crave
good food in winter – not just fudge and party mix, but homemade soup or a juicy pot roast. And
there’s still something about the solemn purity of winter that calls us to focus inward. To boost
the spirits, there’s nothing like a quiet walk on a snowy Sunday afternoon. It’s also the best time
to read the uplifting books that have languished on the nightstand since summer.


This is, without question, the most trying of seasons. It gets depressingly dark by 6 o’clock, and
the wind howls at the door like a hungry wolf. But the frozen solitude of winter is not a thing to
be feared. Winter is simply an old friend returned, who waits in unspoken silence to wish us well.


Tom Springer is a free lance writer from Three Rivers, Michigan.

Canada Debates Revival of Nuclear Power

At a recent meeting in Detroit, the G-8 energy ministers were looking for alternatives to non-renewable resources such as oil and gas. Nuclear energy was high on that list of alternatives. But as the Great Lakes Radio Consortium’s Dan Karpenchuk reports, on the north shore of Lake Ontario, at least, renewing the drive towards nuclear power is becoming too costly:

Transcript

At a recent meeting in Detroit, the G-8 energy ministers were looking for alternatives to non-renewable resources such as oil and gas. High among those alternatives was emphasis on nuclear energy. But as the Great Lakes Radio Consortium’s Dan Karpenchuk reports, on the north shore of Lake Ontario, at least, renewing the drive towards nuclear power is becoming too costly:


The nuclear power plant at Pickering, on the shores of Lake Ontario, holds some of the oldest reactors in North America. Environmentalists have long argued that the 30-year-old reactors in the Pickering power plant should be mothballed. But a couple of years ago, Ontario Power Generation said it would completely overhaul the reactors, estimating a cost of about one billion dollars Canadian.


But the costs, complexity, and time it would take to do the work turned out to be more than anyone expected. The scheduled re-opening has now been twice delayed …and the cost of doing the work has already soared to more than two billion dollars.


While environmentalists in the Great Lakes region may take heart at the delays and the increased
costs, the Ontario government is sticking with it.


Senior officials at the plant say no matter what the costs, re-furbishing is by far the best option for the province. They say even carrying the two billion dollar price tag, it would be competitive with other energy sources such as gas and oil. And, in that context, they say, it still makes commercial sense.


For the Great Lakes Radio Consortium, I’m Dan Karpenchuk.