Showing posts with label wetland. Show all posts
Showing posts with label wetland. Show all posts

Tuesday, May 24, 2011

Weeds Are Us


Well, that's what Michael Pollan, author of Botany of Desire, says. He makes a compelling case.

He points out that plants we call weeds are those plants that tend to do well in areas that have been disturbed by humans - farm fields, urban areas, any suburban lawn, for example...

Add to that the fact that people have moved plants around the planet for pretty much as long as humans have been moving themselves, and one can see that weeds and people are inextricably linked.

In some cases, we have even planted the future noxious weeds ourselves. This is the case with both multiflora rose and reed canary grass, which were promoted for planting by the federal government as recently as the 1960s! Today, there is not a natural area manager around who does not curse those plants on a regular basis.

Multiflora rose, with its thorns and long, twining vines, has ripped clothes, snagged skin, and made many walks through the woods unpleasant for decades now. Cutting it and treating the cut stalks with herbicide is about the only way to get rid of it. And that is tedious, unpleasant work!

Reed canary grass (rcg), which was recommended to farmers as a forage plant for low-lying areas, has now moved on to invade nearly any wetland area. Too many wetlands that were dominated by native plants just a decade ago are now dominated by reed canary grass. Rodeo (R) is an herbicide that will kill the grass, but because rcg produces so many seeds, it can take years just to exhaust the seed bank. And, if the area has any water draining into it, there is always the likelihood that seed will flow in from infested areas upstream.

It's daunting, isn't it?

So, what can one person do?

Well, the best thing to do it to plant only native species. Red Buffalo Nursery in Hebron has a nice feature on its website that allows one to get a list of native plants that fit certain criteria (amount of sun, soil conditions, and type of plant -- grass, forb, etc)

The second best thing to do is plant only species that are not invasive. The Chicago Botanic Garden has a nice feature available to help people choose plants that are not invasive - weedy - for most every situation.

Making different choices about what we plant will help stop the increase in invasive plants crowding out our local natural areas.

If you'd like to do more, you can volunteer to help at a restoration work day!

Thursday, March 31, 2011

Frogs and fairy shrimp and salamanders, oh my!

Did you hear the sound of a thumb raking over the teeth of a comb while on a recent hike? That's the Western Chorus Frog. The first frog to emerge when the ground thaws.

They are very loud near some wetlands in our area, particularly in the Alden region where small, fishless ponds (vernal pools) abound this time of the year. A diversity of tiny creatures, such as the fairy shrimp (photo to the right), are found in abundance, providing a valuable food source for the recently emerged amphibians, as well as the hatchling salamanders, frogs, toads and turtles.

In larger ponds - those with fish - these small creatures do not survive, as they become food for the fish. But, in the small temporary pools of spring, the young amphibians are able to mature, feed on mosquito larvae, and breed so there will be future generations!

If you live near one of these spring pools, be on the lookout for spotted salamanders! They have a tendency to end up in window wells - the three on the left were rescued from one during a spring hike to look at vernal pools and the critters found there!

Thursday, May 27, 2010

Turtle Crossing!


I'm thinking about getting some turtle crossing signs to put up along Dean Street, asking people to slow down and yield to these little fellas!

Last week we saw a painted turtle that had been run over right in the middle of the road. And yesterday, I saw a very large snapping turtle that had just made it (safely) across the road.

There are wetlands in the back of properties on the east side of Dean Street, and in the front of properties on the west side of the road.

Most turtles live in wetlands, but they lay their eggs in nearby upland areas. I suspect the snapper was scouting out a nesting spot where it is high and dry near our office, but actually lives in one of the wetlands across the street.

No one explains to the turtles that they need to stay away from roads because of the cars. I would imagine that for them, the road is just a really smooth and easy strip of land to cross while they are scouting for a good spot to lay their eggs.

The next challenge comes when the baby turtles (about the size of a half-dollar) hatch from the eggs, and then through some homing instinct, head off to find their mothers. These little guys are easy prey for many animals and birds. And if they have to cross a road, they are obviously very vulnerable to being squished -- let's face it, they are really small (so not very visible) and they are really slow (because their legs are so tiny!).

So, I'm thinking some well-placed turtle crossing signs are in order to warn folks to be on the look-out!


Monday, March 22, 2010

Horse Fair Springs Fen update!

That's skunk cabbage poking up through the snow on the first day of Spring (March 20th) at Spring Grove's Horse Fair Spring Fen! The little creek was thick with those early-rising, prehistoric-looking plants that are a sure sign of a natural, high quality wetland.

Kudos to Linda Balek for exploring this forgotten corner of the Village last year and finding this hidden gem! March 20th was the second Volunteer Work Party at the property, and what a Party it was. Just five of us made a big dent in the invasive brush, two with chain saws and three hauling & stacking the cut wood!

Who knew it would snow on that first Spring morning! But a few flakes didn't stop the volunteers, just as they didn't stop the skunk cabbage from poking up after its long winter nap.

The pictures on the right and left show the area before and during clearing -- lots of brush is visible. The picture on the right shows Ted Thornton & Rich Paull wrestling with a box elder that has been cut, but won't fall because its upper branches are hung up by grape vines. Snags like that have can't be left to fall later -- they could hurt someone if they fell unexpectedly.

The final picture is of the same area after the clearing is complete. The dark spot in the middle appears to be a wet area that will probably be thick with skunk cabbage next time we're out there!!





Monday, January 11, 2010

Land of Oz article link

Did you see the article in the Monday, January 11th NW Herald about TLC's purchase of a 60 acres we are calling the Land of Oz?

This is only the third time TLC has purchased land -- we only buy land when it is on the county natural areas inventory, and either too small or isolated to be purchased by the Conservation District. Otherwise, we leave the land-buying to them, and focus on work with private landowners.

Let's face it, land is expensive, the District has the money, and they are really good at acquisition. On the other hand, because of Linda Balek, TLC excels at working with private landowners to help them leave their legacies of land for future generations.

But, that brings us back to the Land of Oz. We purchased 60 acres of (mostly) wetland for $270,000, and will undertake restoration in the coming years. There is a lot of reed canary grass growing out there, BUT, there are also these amazing pockets of natural sedge meadow that have no reed canary. The pockets are dominated by blue joint grass, sedges, wetland forbs, and all the things one would expect to find in a natural sedge meadow.

The goal of TLC's restoration will be to connect the dots -- to expand the extent of the high quality pockets to the point where they dominate the site.

We decided to name the site the Land of Oz after the long-time owner, Nat Ozmon. But, the name fits for other reasons as well. Like Baum's Land of Oz, this place would only be found by accident, as when the Wizard's balloon blew off course and in to the Emerald City. It is otherwise inaccessible, and hidden from view due to topography. The Land of Oz lies at the bottom of a basin, and does not have direct frontage on any road.

Our local Land of Oz is also a place of wonder - a place where surprises lie around each bend.

We haven't seen any munchkins yet! Or cowardly lions. But I bet there are plenty of frogs & salamanders! We'll find out in the Spring - I hope you'll join us.



Friday, January 8, 2010

Another Amazing Year


By the numbers, 2009 was an amazing year for TLC. Another 263 acres of precious McHenry County land will never be developed.

- ten conservation easements preserving a total of 200 acres of land.
- one land donation preserving 3 acres.
- one land purchase of 60 acres.

A huge THANK YOU to the landowners who chose to place permanent conservation restrictions on their land, ensuring that future generations will enjoy the beauty and abundance that these lands provide.

As in other years, the numbers are only part of the story. The places preserved include:
- twelve acres of critical recharge for the Boone Creek Fen
- 26 acres adjacent to MCCD's Glacial Park
- 60 acres of sedge meadow that provides a critical stepping stone of habitat
- nine acres of oak woods that are a remnant in the oldest glaciated area of the county
- 75 acres of sustainably managed tree & shrub nursery land
- four acres of buffer for the Parker Fen
- nine acres along the Nippersink Creek
- an ancient grove of hickories
- 16 acres of high quality wetland adjacent to MCCD's High Point Preserve
- three acres adjoining the 150 acre Finch Farm that TLC preserved in 2007
- three acres along Pistakee Lake, presrving a family legacy that has been passed down for most of a Century.

There are many more stories like these waiting to be told! Stories of people, land, and people with the land! I'll take the time to tell some of these stories in the weeks ahead.

If you can attend our annual meeting on January 31st, you'll have the chance to meet some of the people behind the stories! Hope to see you there.

Sunday, November 1, 2009

Seed Shraring Success!


Halloween 2009 included a trick or treat of sorts for adults this year - seed sharing in Alden Township!

The table full of bags is an adult version of candy bowls - each bag containing seed from a different plant species, and all organized by habitat type. Instead of choosing between Snickers, Kit Kats, or Starburst, the seed sharers were grabbing handfuls of Monarda fistulosa, Zizia aurea and Rudbeckia triloba. I wish I had a good photo of one of the adults with a look of glee on her face while finding that species that she had been looking to add to her restoration!

Thanks to Orrin & Patricia Bangert for opening their garage to the seed sharers as a base of operations, and thanks to the Bangerts, Randy & Karen Stowe, Rich & Renee Dankert, Colleen & Lou Moeller and Kay & Dick Pfundt for opening their properties to the thirty or so seed sharers who came out Halloween morning to collect native seed from these mature restorations to either enhance or expand their own restoration projects.

This is the third year that TLC and the WPPC have teamed up with the Alden Township seed group to share their natural abundance with restorationists across McHenry County. Seed Sharing was initially the idea of George Johnson, former Alden Township resident who had a big influence on the spread of prairie and wetland restoration in the township.

The photo at right shows George (on the left) talking with Lou Moeller (on the right with a cup of coffee). Lou & his wife Colleen purchased the Johnson's house when George and his wife Marilyn moved to Madison Wisconsin a couple of years ago.

One of the most exciting things about Seed Sharing is seeing the restoration bug pass not just to new landowners each year, but to a new generation of landowners!








Tuesday, August 25, 2009

Disc Golf versus a Wetland

I read - with a groan - another rant in the newspaper from someone about those "special interest" people in McHenry trying to stop progress because it would mean kids throwing frisbees in their backyards.

I thought: Can't we all learn to get along? Isn't this world big enough for the frisbee-golfers too?

After a call from one of the anti-disc golf neighbors, I realized it wasn't just a case of some folks wanting to keep other folks out of their backyards. The proposed disc golf site is located on a wetland listed on the County's natural area inventory.

There are only about 170 such natural features remaining in the entire county. These natural areas took millenia to evolve, yet the only take hours to destroy through thoughtlessness -- or malice. There are lady slipper orchids growing out there. These flowers are typically only found in natural areas that have survived the onslaught of human beings.

The soil at the park is wet, mucky, not suitable for building anything, and certainly not appropriate for a bunch of people to be running around in, tossing hard discs into metal cages.

When most parks develop amenities in wet areas, things like boardwalks are built to allow people to move across the wetlands without damaging them. Think of Volo Bog or the Bog at Glacial Park near Ringwood. The wetland isn't usually planned for intensive use best suited to a mowed lawn.

Now I will rephrase my early question: "Can't we learn to get along with nature?"

People have destroyed or dramatically altered at least 99% of the landscape somoehow to the detriment of the natural communities that were once here. There are so few remnants of these unique combinations of plants, animals, soils and insects remaining, and yet we still find ways to trample on what little is left.

Call me a savage, but I think nature deserves some places to play too.

Tuesday, April 14, 2009

Burn Baby, Burn!

Ecological Fire Management of natural areas is so cool.

Take a natural area - prairie, wetland or woodland - and every year or two light it on fire. The fire knocks back invasive plants like buckthorn and garlic mustard, giving the deep rooted natives a fighting chance!

The picture makes fire look a little scary, with flames roaring higher than a person, but the truth is that when doing this, TLC is very careful. It is said that a really good ecological burn is slow and boring, and we strive to make sure our burns are the slowest and most boring!

First we make sure there are fire breaks surrounding the area we want to burn - this can be done by raking or mowing vegetation to get rid of stuff that will burn easily. The fire breaks provide a safe place for the crew to move in, and help ensure that the fire will stop at the edges of the site.

Then, starting at the portion of the fire break that is located such that the wind is blowing into our faces, we light a backfire -- this means lighting a fire a foot or so away from the fire break, and letting the wind push the fire to the fire break, resulting in a burned line that effectively expands the fire break. Because we are working against the wind at this point, we don't have to worry about the fire taking off across the site.

Once a really good blackline is burned in, we light the head fire. This is where the wind is at our backs, and the fire roars quickly across the site, dying out when it runs out of fuel at the blackline! Here is a picture of a head fire - you can see the flames leaving a charred landscape in their wake!

All through the burn, we make sure that crew members are positioned at strategic locations to catch any fire that starts up where it isn't supposed to be! Crew members are armed with flappers to smother the fire, rakes to get rid of fuel (grass and leaves), and waterpacks to extinguish the fire if needed.
Historically, fire roared across the landscape regularly, either started by lightning or lit by native people who used it to drive game. The plants that thrived in this landscape are therefore well adapted to fire -- the bur oaks have a thick, corky bark that withstands fire, and the native grasses and flowers have exceptionally deep roots that mean the plants will grow back!
The 2009 Spring burn season is drawing to a close now -- birds are starting to build nests, and grasses are starting to green up. We'd rather not burn down someone's house, not even a sparrow's!

Tuesday, April 7, 2009

Vernal Pools are Teeming with Life!

That's a crayfish, and last Friday, we saw several tiny, immature crayfish in vernal pools up in Alden Township. They were so tiny that the claws were about the width of a strand of hair! The entire critter was perhaps a quarter of an inch long, looking like some random bug larva, but under a magnifying glass, it became clear that these little guys were teeny-tiny crayfish!

A project to gather information about our local vernal pools has been organized by George Johnson, formerly of Alden Township but now living in Madison Wisconsin. One of the things that George had always hoped to accomplish when he lived in McHenry County, was to raise awareness of the presence and importance of these local temporary, spring ponds.

These seasonally wet areas are uncommon in the Chicago region, in large part because they are places that are filled in by homeowners and developers who do not see the benefits of having a wet, mucky spot in the yard each spring and perhaps into the summer.

The spring ponds are fairly common in Alden Township for a couple of reasons: 1. the area is still sparsely developed, and 2. historically, much of the area was used for livestock grazing instead of row crop farming. This meant that the seasonally wet spots survived, along with a lot of critters that are not often seen in the "suburbs."

Friday April 3rd was the inaugural day of McHenry County vernal pool monitoring. During their pool sampling, volunteers saw a large number of fairy shrimp (ranging in color from pink to red to blue to yellow, and everything in between), a wide variety of midges, scuds, and other tiny aquatic life that plays an important role in the overall food chain.

It was a cold day -- 43 degrees in the sun. The water was cold too -- 45 degrees. Yet, when we gazed into our dipping nets as we pulled them from the pools, tiny little eyes looked back at us! I had no idea there was so much activity on a cold day in cold water!

Unfortunately, there were also lots of mosquito larvae. These are another link in the web of life, providing a food source for dragonflies, frogs, fish, birds and other species that feed on water organisms, but I still don't like them. The skeeter larvae spend most of their time at the surface of the water breathing through a tube in their abdomen, as shown in the picture.

The eggs from which the larvae hatched were probably laid in the damp ground last summer or fall, and remained in an embryonic form until conditions were right for them to develop into larvae. The larval stage lasts a week or two, then turns into a pupa for a couple of days -- just long enough for it to become a fully-formed adult mosquito, ready to start feeding...

Now, don't blame the vernal pool for the mosquito larvae. These guys will develop in any little wet spot, regardless of the habitat. Lawns, bird baths, potholes in the road, etc. If it holds water for even a few days, it can be a source of skeeters!

One of the beautiful things about these vernal pools is that they are literally teeming with life of all shapes and sizes. There are microscopic things being eaten by tiny critters, which in turn are eaten by somewhat larger things, etc, etc. In that chain are tadpoles, young frogs and salamanders that eat mosquito larvae.
My wish is that there will be a large number of frog and salamander babies in all of our local vernal pools to eat those larvae before they become adults!


Monday, March 30, 2009

Amphibians Under Threat

The April 2009 issue of National Geographic Magazine has an article about the dramatic, worldwide decline of amphibians (frogs and salamanders) due to a fungus that has been spreading rapidly over the last couple of decades.

The fungus, chytridiomycosis, targets the protein keratin which increases in frogs as they mature. So, a pond with the fungus may be teeming with tadpoles, but have no adult frogs. (And once those frogs mature, they will die too, and then the source of future tadpoles is gone...)

Even areas that are remote from civilization, like lakes high up in the Sierra mountains, have seen devastating die offs of frogs as the fungus has reached those seemingly isolated spots. The following quote seems to sum up the problem:

" 'Today's amphibians have taken not just a one-two punch, but a one-two-three-four punch. It's death by a thousand cuts,' says University of California, Berkeley, biol­ogist David Wake. Habitat destruc­tion, the introduction of exotic species, commercial exploitation, and water pollution are working in concert to decimate the world's amphibians."

Add to these other items the spread of the chytrid fungus, and the population of frogs and salamanders across the planet are in trouble. Hundreds of species have already gone extinct. Many other species are now found only in captivity, where scientists hope they can keep them around through breeding programs, and then reintroduce them to the wild once (if?) the situation with the fungus is resolved.

"Why care about frogs? 'I could give you a thousand reasons,' says herpetologist Luis Coloma. Because their skin acts not only as a protective barrier but also as a lung and a kidney, they can provide an early warning of pollutants. Their insect prey carries human pathogens, so frogs are an ally against disease. They serve as food for snakes, birds, even humans, playing a key role in both freshwater and terrestrial ecosystems. 'There are places where the biomass of amphibians was once higher than all other vertebrates combined,' says David Wake. 'How can you take that out of the ecosystem without changing it in a major way? There will be ecological consequences that we haven't yet grasped.' "
It all goes back to Aldo Leopold's rule about intelligent tinkering: be sure you keep all the parts.

For a quick slide show of frogs from around the world, click here!

Thursday, March 26, 2009

Have you Hugged Your Salamander Today?

Meet the Tiger Salamander Ambystoma tigrinum, one of the few salamader species found in McHenry County. Our local Tigers can be as large as 14 inches, but are more likely to be 6-8 inches long. You are most likely to find one of these guys in a moist woodland under leaf litter - they tend to be very private, probably to avoid predators!

There are about 500 species of salamader worldwide, with the largest type found in China, and weighing in at 140 pounds and nearly 6 feet long!
In Illinois, the largest salamander is called a Hellbender, and can be two and a half feet long. They are found in fast moving streams in the southern part of the state, so don't expect to see one in McHenry County!

The Great Smoky Mountain National Park in North Carolina is considered the salamander capital of the World, boasting 30 different species ranging from the inch and a half long pygmy salamander to the 30 inch hellbender!

Salamanders are amphibians, meaning they spend part of their life on the land and part in the water. They are most closely related to frogs and toads, although they may visually resemble lizards (or snakes with little feet). Their skin must be kept moist or they dry up and die.

Many, but not all, salamanders breathe through their skin, making them highly susceptible to pollutants like pesticides or other chemicals, as these things are absorbed directly through the skin and into the organs.

Salamanders fill an important niche in the overall food chain. They are carnivores, meaning they eat other animals like insects, eggs, small fish, and even small rodents or young frogs. In turn, they are eaten by raccoons, possums, large birds like herons and hawks, snakes, turtles and other medium-sized carnivores.

Following the first big rain in the spring, when temporary pools of water flood, salamanders emerge from hibernation, and head out in search of something to eat and a place where they can meet salamanders of the opposite gender! This drive to reproduce often results in so-called "breeding events" in the temporary pools, where several salamanders gather to lay and fertilize eggs. (Kind of a salamander orgy.)

However, because the salamander is a small, reclusive critter, any given salamander is unlikely to have the opportunity to breed more than once in its lifeime! So, if you happen to chance upon a salamander breeding event in your local vernal pool one spring, just look away, and let them enjoy the party -- it might be the only party any of them ever attend!

Sunday, December 7, 2008

Baseball for Gravel Pit proposal

I just have to get something out there:

The Land Conservancy of McHenry County is not for or against the proposal to build a baseball stadium in Woodstock in exhange for allowing the surrounding area to be mined for gravel. There have been implications in public meetings that TLC has some interest in the project - that is not accurate.

TLC's interest is in ensuring that the environmental resources on and around the property are safeguarded should the development project go forward.

There is a large, high quality wetland area in the center of the parcel. While the proponents say that they will take necessary steps to preserve the wetland, the history of gravel mining adjacent to wetlands is that the wetlands lose because of the changed hydrology (water flow) over and through the site.

The wetland is dependent upon groundwater flow through the surrounding porous soils. Building a baseball stadium will decrease the ability of water to infiltrate at this site, and has a good chance of reducing the flow of water through the ground into the wetland. It also has a good chance of increasing the surface water flow into the wetland, thus changing cool clean groundwater for warm, dirty surface water. The change is likely to mean that the wetland will be more susceptible to invasion by non-native, invasive plants like Phragmites australis, an invader that thrives in urban wetland because of its tolerance of poor water quality and salt.

Now, don't get me wrong, gravel pits can be reclaimed to become lovely conservation areas such as MCCD's The Hollows and Lake County Forest Preserve District's Independence Grove.

In this case, the proposed end use for the gravel pit area is a new County Fair Ground should the Fair Association have the funds needed to purchase the site from the gravel company after the mining is complete.

A question I have in that regard is this: if the gravel company digs down to within a foot of the seasonal high water table, will that leave enough of a separation between the water table and the ground surface for development of a fair ground facility? Or, will soil have to be brought in to increase the separation? And, if the mining will go within a foot of the seasonal high water table level, where will it be in relation to the record high water level? And, how will the water level change with the addition of a baseball stadium and large parking area?

These are not trivial concerns. As the answers emerge, I'll be sure to report back!!