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

Bioblitz: Bugs and Birds in Your Backyard

  • A fish sample from this summer's BioBlitz in Ohio. (Photo courtesy of the Geauga Park District)

Hundreds of tiny plants and animals live in our city parks. But most people are too busy enjoying themselves to bother thinking about the critters… let alone to get down on their hands and knees and look for them. Now a campaign is underway to get people to take a closer look at what’s living in their neighborhood parks. The effort is called a “BioBlitz.” It pairs volunteers with scientists. They go into natural areas and see how many different species they can identify. The idea is to show the important role city parks can play in preserving diverse wildlife. The Great Lakes Radio Consortium’s Patty Murray attended a BioBlitz and has this report:

Transcript

Hundreds of tiny plants and animals live in our city parks. But most
people are too busy enjoying themselves to bother thinking about the
critters… let alone to get down on their hands and knees and look for
them. Now a campaign is underway to get people to take a closer look at
what’s living in their neighborhood parks. The effort is called
a”BioBlitz.” It pairs volunteers with scientists. They go into natural
areas and see how many different species they can identify. The idea
is to show the important role city parks can play in preserving diverse
wildlife. The Great Lakes Radio Consortium’s Patty Murray attended a
BioBlitz and has this report:


A small crowd of people is gathered around a table at a picnic shelter.
They’re not reaching for the mustard. Instead they’re watching Bob
Howe open a metal, shoe box-shaped trap… to see what comes out.


“Yeah, there he is, a masked shrew.” “Wow.”


Howe is a Professor of Applied Science at the University of Wisconsin,
Green Bay. He’s at Baird Creek Park… dumping the little, brown
masked shrew into a clear plastic display cage. It darts under a pile
of grass, probably wondering what the heck’s going on.


“There he is wow, he’s tiny.” ‘What is he?’
“He’s called a masked shrew. Sorex cinereus. It’s our smallest mammal in
Wisconsin. A very common species though most people never see them.”


The shrews are apparently rarely seen because they’re so small… not
even half the size of a toy rubber mouse you’d give your cat to play
with.


It’s obscure animals like this that the BioBlitz is all about.
Organizer Tammy Lee is with the group Great Lakes Forever. She wants
people to take time out from barbecuing… and think about the other
beings that share the park with them.


“And just to make them say, ‘Wow, I didn’t know that yellow billed
cuckoo exists here or that salamander.'”


Lee says BioBlitzes are deliberately staged in urban or suburban parks –
not wildlife sanctuaries -to drive home the point that wildlife doesn’t
always
stay within the boundaries of a preserve. It’s in our own backyards.


“Somewhere that they can walk to, something they can go to, not
necessarily to look for biodiversity, but they might come here to play a
baseball game or play on the playground.”


“Hey do you guys want to help me catch some bugs?”


Volunteer Joan Berkopec is corralling a young brother and sister team.
She
hands the kids cloth nets and leads them beyond the merry go
round and the slide to a patch of waist high wildflowers.


They make a few sweeps with the nets, then sit on the grass to see what
they
came up with.


“Oh Lydia! You have a bunch of stuff in here. You have a
grasshopper.”


“Oh… everything’s getting away!”


The nature hunters lose a few flying insects out of their nets, but in
a matter of minutes they’re able to grab five or ten other funny
looking bugs and put them in sample jars.


They’ll take the bugs back to the Park Shelter where professional
scientists
will identify them. By the end of the 12-hour BioBlitz in the park
they’ll
have identified 571 different species.


Professor Bob Howe, recovered from the excitement of the masked shrew
discovery, thinks this park harbors more than 800 different types of
wildlife depending on the season.


“Well, one species that we suspect is nesting there is Wilson’s fowler, which
is a species found in just a few places in the entire state. We’ve also found
a number of what’re called forest interior bird species like scarlet tanager and wood thrush.
That indicates this forest is intact and quite a good habitat for breeding
birds.”


Not bad for a city park.


Howe says it’s important to have a lot of different species living
together.
Without certain trees, some birds wouldn’t come around. Without the
birds… certain insects would proliferate… and so on. Also, Howe
says city parks filter out all sorts of pollutants such as fertilizers
before they get
into lakes and streams.


More BioBlitzes are going on in Wisconsin this summer. The events have
also
been held in places like Chicago and in New York’s Central Park.


For the
Great Lakes Radio Consortium, I’m Patty Murray.

Related Links

Small Wetlands Drowning in Development

  • Small wetlands such as the one pictured above often dry up during the summer. These 'ephemeral wetlands' are home to all kinds of frogs, salamanders, reptiles and aquatic life that depend on this specific kind of habitat for their survival. Photo by Lester Graham.

Biologists are becoming concerned about the disappearance of a habitat for wildlife that can be found in rural areas, in sprawling suburbs, and even in big cities. The Environmental Protection Agency is trying to get city planners, farmers, and developers to stop draining small marshy areas that biologists call ephemeral wetlands. The EPA says in the rush to save big areas of wetlands these small temporary wet spots have been overlooked at the expense of some unique wildlife. The Great Lakes Radio Consortium’s Lester Graham has more:

Transcript

Biologists are becoming concerned about the disappearance of a habitat for wildlife that can be found in rural areas, in sprawling suburbs, and even in big cities. The Environmental Protection Agency is trying to get city planners, farmers, and developers to stop draining small marshy areas that biologists call ephemeral wetlands. The EPA says in the rush to save big areas of wetlands these small temporary wet spots have been overlooked at the expense of some unique wildlife. The Great Lakes Radio Consortium’s Lester Graham has more:

(Frogs sound)

There’s still just a bit of ice along the edges of this little pool, but it’s a warm day, the ice will soon melt, and the frogs sound as if they’re rejoicing. In the coming weeks, this shallow little pond will become a chorus of different kinds of frogs and host a dance of mating salamanders. Many kinds of amphibians and reptiles are drawn to wet spots like this one to mate and reproduce. And. there’s a bit of a rush to their reproductive activities. More than likely by middle or late summer, this little pool will be all dried up. Actually, that’s good because it means fish can’t survive here, fish that would eat the young of many of these species. So a lot of these frogs and salamanders and other creepy-crawly things do really well here while its wet.

Ed Hammer is a biologist with the Environmental Protection Agency. He says these temporary, or ephemeral, wetlands are usually pretty small… most under two acres in size…some so small you could jump across them. But they’re really important to aquatic life such as fairy shrimp and clam shrimp, which can survive, and even need dry periods. And certain species of frogs and other amphibians who use the wetlands for breeding.

(Frogs fade out)

“They’re extremely productive. We have some of these smaller wetlands in our area in the Chicago region that in a quarter acre of size can produce hundreds and hundreds of salamanders and leopard frogs in a good year when the water holds out. They really depend on those habitats being there every few years at the very least.”

And Hammer says the productivity of the ephemeral wetlands helps other species.

“Salamanders and frogs are fed upon by a multitude of other organisms like turtles and snakes and on up the food chain and then, you know, owls will feed on them. Raccoons and skunks and fox and all up the food chain they’ll be fed on. So they’re an extremely important food source.”

The temporary wetlands are also important to many migrating birds such as pintail ducks and little green herons. Paul Zedler is a professor of environmental studies and scientist at the University of Wisconsin arboretum.

“Imagine you’re a bird, a shore bird, looking for habitat in which to forage. Then ephemeral wetlands, while they’re there, can be an excellent place for resting and feeding.”

Zedler says the ephemeral wetlands are amazing to him because of the wet then dry cycle to which so many animals have adapted.

“It’s like instant ecosystem. Like, add water and you get an ecosystem. People who, once it’s pointed out to them, invariably think it’s pretty darn neat.”

But a lot of times, the people who own the ephemeral wetlands don’t realize that area that gets swampy in wet years is a thriving habitat. Ephemeral wetlands are often drained to plant crops, or bulldozed deeper to build storm water retention basins for housing developments, or the surrounding woodlands are cut down eliminating the habitat where many of the frogs and salamanders live the rest of the year.

They’ve disappeared so quickly that some species that depend on ephemeral wetlands are in danger of disappearing too. Gary Casper is with the Milwaukee Public Museum. He’s been studying a certain turtle called Blanding’s turtle to see why its numbers have dwindled so much.

“Blandings turtles look kind of like those old German helmets from World War II and they have a really bright yellow chin and throat with a real long neck. They’re a threatened species in Wisconsin and threatened or endangered in several other states.”

Casper has been watching Blanding’s turtles to see what makes them tick, where they like to live and eat.

“And after looking at the data from seven years of radio tracking, it’s quite clear that they strongly prefer these seasonal, isolated wetlands probably because they provide much more food for them.”

And so they join a host of other critters such as gray tree frogs, marbled salamanders, fishing spiders, wood ducks and others who heavily depend on the ephemeral wetlands.

The EPA is publishing pamphlets and holding seminars to teach state and local officials and those folks interested in preserving wildlife habitat…hoping they’ll spread the word about the value of the seasonal ponds, or mud puddles so that private landowners will keep them around.

For the Great Lakes Radio Consortium, this is Lester Graham.

Related Links

  • Download a brochure on ephemeral wetlands by the Conservation Foundation. Acrobat Reader required to open file.