The ice bridge to Isle Royale has formed. See our post here.
Original post: January 9, 2014
Wolves first came to Isle Royale in Lake Superior by crossing an ice bridge in the late 1940s, but these ice bridges have not been forming as often in recent years and the wolf population on Isle Royale has been suffering as a result.
He also spoke about how, unlike the other four Great Lakes, Lake Erie is surrounded by agriculture and a more urbanized landscape.
You can listen to him speak about his "50 and 2 Rule" here:
Lake Erie has seen a resurgence in blooms of cyanobacteria (sometimes referred to as blue-green algae) over the last ten years. It was once a big problem in the 60s and 70s, and it has returned as a problem again.
The fourth story in our week-long series, In Warm Water.
Yellow perch are a staple of firehouse and church fish fries, and the delicate fish on that dish might once have lived in the Great Lakes. But warmer lake waters in a changing climate threaten the yellow perch population as well as other popular cool water fish, like walleye.
You can listen to the first piece in our series above.
We kick off our week-long series In Warm Water: Fish and the Changing Great Lakes with a look at Lake Superior.
It has long been the coldest and most pristine Great Lake. Its frigid waters have helped defend it from some invasive species that have plagued the other Great Lakes. But Lake Superior’s future could look radically different. Warming water and decreasing ice are threatening the habitat of some of the lake’s most iconic fish.
You can listen to today's Environment Report here or read an expanded version of the story below.
Wolves and moose fight for survival on Michigan's Isle Royale National Park. For more than 50 years, researchers have been closely watching them in the world’s longest-running study of predators and prey.
The number of predators on the island has been sinking fast.
The Park is a dedicated wilderness area, so managers do their best to keep it as untouched by humans as possible. But people might need to step in.
Phyllis Green is the park's superintendent. “At this point we’re concerned about the low levels of wolves on the island, but we’re also concerned about making sure the next steps we take are well-thought-out,” she says.
There are just eight wolves left on Isle Royale. This is the first year that Michigan Technological University researchers were unable to document any pups born to the wolves.
ISLE ROYALE, Mich. (AP) - Isle Royale National Park's gray wolves apparently don't have a gender gap after all.
Scientists reported last year that only nine wolves remained on the Lake Superior island chain - the lowest total in more than 50 years. They said just one was known to be a female, raising doubts about the predator's long-term prospects for survival in the wilderness park.
But Superintendent Phyllis Green said Thursday that genetic analysis of wolf excrement and additional observations suggest that four or five of the animals are females.
Even so, Green says the wolves' situation remains tenuous and experts are studying how climate change may affect them.
Michigan Technological University biologists are conducting their annual winter study at Isle Royale and are expected to release updated wolf and moose numbers next month.
This is the first in a two-part series. Click here to hear part two.
Fifteen people from Michigan have died from fungal meningitis, more than in any other state.
It’s tough to know for sure why Michigan wound up with a full third of all cases nationwide. Bad luck? A graying population seeking pain relief medication that, in this case, turned out to be contaminated? Or a bustling, privatized network of pain clinics spread across the state?
As the nation’s civic leaders search for a permanent solution to keep invasive Asian carp from spreading, other parts of the country are betting on the carp’s future. Across the Mississippi Valley, fishermen and exporters are teaming up to develop the market for carp, and carp products. Some people hope that selling carp might be the best method for checking their expansion.
When the French explorer Père Marquette traveled down the Illinois River in 1673, his journal tells of encounters with “monstrous fish” so large they nearly overturned his canoe.
In all likelihood the fish Marquette was talking about were channel catfish, but nearly 340 years later fisherman Josh Havens says it’s bighead carp... and silver carp which now harass boaters on the Illinois (silver carp are the jumpers).
“Oh everybody hates ‘em, except for people that shoot ‘em and stuff like that. I hate ‘em when I’m trying to tube with my kids, but then when we’re trying to shoot ‘em I like them. So it’s a love-hate thing.”
Earlier this spring, the Obama administration ordered the U.S. Army Corps of Engineers to speed up a five-year study of options to block invasive Asian carp from entering the Great Lakes. Many biologists say the best solution would be complete separation of the Great Lakes from the Mississippi River watershed. But basin separation comes with its own multi-billion dollar price tag... and it would require re-plumbing the entire City of Chicago.
This story begins with a nice round number, and that number is 1900… the year the Chicago Sanitary and Ship Canal was complete.
Back then, the canal’s opening was touted as one of the biggest civil engineering feats of the industrial age—significant, for completely reversing the flow of the Chicago River away from Lake Michigan and taking all the sewage from the city of Chicago with it.
Over 100 years later, that canal is still doing the same job.
“On any given day, depending on the time of year, approximately 60-80 percent of the volume of the Chicago River is treated municipal wastewater.”
It’s something we don’t like to talk about, but cancer is all around us. It would be hard to find someone who hasn’t been touched by cancer - not just someone you know - but someone you love.
In Living with Cancer, a special one-hour documentary from Michigan Radio, we'll explore how much we really know about the connections between cancer and the chemicals in our environment.
We’ll meet both regular people and scientists trying to figure out if certain towns around Michigan are struggling with more cancer cases than other places because of current or past pollution. You'll hear about whether or not turning to the courts makes sense when it seems a company might to be blame for putting people at risk of cancer or other illnesses. Finally, we'll look at where we go from here. What do researchers know, and where are they looking next?
Listen live at 3pm on air on Michigan Radio or you can listen to the show at the audio links below:
This election year has seen a huge increase in the amount of money being spent on political campaigns compared to previous years. A lot of that money is being spent on negative political ads on TV.
As Michigan’s primary election gets closer, and the general election is only four months away, we’re going to see more and more political TV ads. And the bulk of those ads are going to be negative ads.
“I hear the negativity all the time. I’m tired of it. Tell me what it is you want to do not what you think the other guy is going to do," said Troy Hemphill.
“I don’t like to listen to that. I want some positive information," Kiirsten Olson insisted.
“Even when you think, ‘I’m not going to listen to negative ads, I’m not going to listen to negative ads,’ and then one creeps inside your brain. And then it sticks,” Shannon Rubago bemoaned.
Those are pretty typical responses of a couple of groups of people we talked to. We showed them a series of negative ads to see what their reactions would be.
The longest running predator-prey study anywhere in the world takes place right here in Michigan.
For more than five decades, researchers have been closely watching the ebb and flow of wolves and moose on Isle Royale.
To do their work, wolf biologists Rolf Peterson and John Vucetich of Michigan Tech lean on those willing to pitch in and help.
Moosewatch volunteers hike off-trail for miles with their backpacks getting heavier as they pick up moose bones along the way.
They get bitten by bugs, scratched by branches, and soaked by the rain as they make their way through Isle Royale's boreal forest.
And they pay for the experience. It costs $450 per person, which covers the expenses for the wolf-moose project.
The researchers have been relying on these summer volunteers since 1988. John Vucetich says overall, about a third of all bones they collect are collected by Moosewatch volunteers.
"In a typical year they find the skeletal remains of 50 to 75 moose. They perform necropsies on these moose and collect several specimens (skull, jaw bone, metatarsus, and any arthritic bones)," says Vucetich.
Rebecca Williams and I recently went out with a Moosewatch group on Isle Royale.
Each group is made up of six people. Five volunteers and one group leader.
The leader is in charge of making sure people don't get separated and lost in the dense forest.
Our group leader, Jeff Holden, described himself as a bit of a mother hen, which is a good quality to have for someone looking after five people for an entire week in the backcountry.
Holden's job was made especially hard when we arrived. He now had two reporters to keep track of as well.
I tended to wander off a little with my camera as I tried to anticipate where the volunteers would come out of the woods:
I never wandered too far, and I captured some video of these volunteers at work in the woods.
Here's what the Moosewatch experience is like:
Moosewatch volunteer David Conrad says his friends don't know what to think of his trip to Isle Royale.
"They can't find this place on a map," says Conrad. "They think the U.P. is part of Canada. [I tell them] 'yeah, I'm going to an island in Lake Superior to count dead moose, and maybe see a live one.' People think I'm crazy. It's just a cool little adventure."
The wolf-moose research project on Michigan's Isle Royale National Park is in its 54th year.
A big chunk of their research goes into tracking down dead moose - bones and carcasses - around the island.
From these remains the researchers can pick apart the status and overall health of the moose population. And understanding moose is important to wolf research, since the wolves eat the moose.
It's like understanding the overall quality and quantity of food available at the grocery store. If there's good, abundant food available, you'd expect things to be good. If not, well - you get the picture.
When Rebecca Williams and I arrived at the Daisy Farm campground on Isle Royale, we were met by Rolf Peterson in his boat.
He said he'd just heard of a dead moose on Caribou Island and asked whether we would like to go see it with him.
A stroke of luck. We'd traveled by plane, car, and boat to get here, and here was our chance to see Peterson in action.
Here's a video of our trip with him. Is ripping the skull off a dead moose gross? I didn't think so, but you can be the judge.
So, what did you think? Vote by typing "gross" or "not gross" in the comment section below.
All this week, we’re visiting an island archipelago in Lake Superior. Isle Royale National Park is so remote you can only get here by ferry or seaplane. It's mostly wilderness. Cell phones don’t work here.
Wolves and moose have the run of the island. It’s an ideal place for people who study the big mammals.
"A nine month old calf. It looks like it might’ve just fallen down the rocky edge and never got up."
Rolf Peterson has come across a moose skeleton. Mourning cloak butterflies are lapping up sodium from the bones. With a yank and a twist, Peterson rips off the skull.
"I think it’s least disruptive if we just saw off the back leg."