Update from Yonder Prairie

Thanks to site steward Scott Kuykendall for sending along a couple of photos from Sunday's Work Party at Yonder Prairie.

To the left is a Sandhill crane that he noticed at the site while he was taking photos as a baseline to help document the changes that we are going to see over the coming years. He noticed something move, looked up from the camera, and there he was - a male sandhill, probably looking for a mate!

Scott also saw a lot of marsh marigold blooming. These plants are such a happy member of our local wet natural areas. They come and go before most other wetland plants reveal their identities. They are a sure sign that there are more intersting species to be found at the site!

In addition to the singing of chorus frogs, Scott also heard the "descending whinny" of the Sora - a bird also known as the Sora Crake or the Sora Rail. This is a hard bird to spot, but I found a picture on the Net to give folks an idea of what they look like. These birds are found in wet areas, and research indicates that they prefer natural wetlands to restored (recreated) habitat. We'll be sure to keep an eye (and ear) out for them at Yonder to see if they are breeding there!

Lots of good news for local oaks

Project Quercus is all about preserving and regenerating the oak woods of the county. And, as we have been saying for a couple of years, the only way we are going to have oaks as a significant part of the local landscape 100 years from now is if individuals, local governments and local businesses all step up to do what they can.

Just this week, we had two perfect examples of how the community can step up -- and, frankly, how some in the community want to step up and help.

On Earth Day, April 22nd, Infinity Day Spa in Crystal Lake, and Ohana Farms near Marengo teamed up with TLC to plant 20 white oak saplings at Ryders Woods Conservation Area in Woodstock. That's Robin Tessmann from Infinity - the awesome spa owner who closed her business for a few hours so her staff could come out to plant the trees. They did it as a promotion for their customers, so each tree was dedicated to someone. Ohana donated the 2-year old, bare-root trees, TLC brought the shovels, buckets and flags, and the City of Woodstock supplied the mulch. There are a lot of big, old white oaks in the park, but no young trees, so it will be nice to see some young 'uns growing there too! The NW Herald did an article about it but forgot to mention TLC...

The second example also happened on Earth Day, when OWC (Other World Computing) made a donation to TLC to support the planting of 20 oaks at Westwood Conservation Area on Saturday May 16th! Thanks to OWC employee Kayleen Ivers for asking TLC about this, and for working with us to make it happen.

There is a nice story about it on OWC's blog which is read by their customers across the country: http://blog.macsales.com/. OWC built a new office and warehouse last year, meeting all of the environmental and energy efficiency standards necessary to achieve LEED Platinum certification through the US Green Building Council. That's a really big deal in the construction world.

Their heating and cooling is geothermal, they are planning to install a wind turbine system to generate electricity, the building is super insulated, the grounds include native plantings, AND they are making investments in the community where they are located to support sustainability here too.

TLC is happy to be a part of these local businesses' efforts to "green" the community!!

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!

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!

Low Impact Development

Recently, I listened to a webinar (a seminar on the Internet) about Low Impact Development (LID for short). It was put on by JFNew and the Delta Institute. JFNew is a native landscaping company, and the Delta Institute is a group that works towards creating a sustainable Great Lakes Region.

So, what is LID? It is all about working with the natural features and qualities of the land to manage stormwater in a non-structural way.

The stormwater management paradigm has long been to build systems to collect and transport away all of the rainwater that falls in a given area. Storm sewers, concrete lined swales, even traditional lawns, are essentially ways to keep water moving away from wherever it fell.

LID means capturing and using or infitrating water closer to where it lands through green infrastructure systems that are actually disconnected.

Try to picture this yard:

1. Rain hits the home's roof, and runs into the gutters, then through the downspout. At the end of the downspout is a rain barrel that collects the first 60 gallons of water for later use watering plants in the garden.

2. Once the rain barrel is full, water then flows out into the yard, where it encounters native plants that absorb some of the water, and slow the flow of the water (unlike a turf lawn that tends to move water quickly).

3. Eventually, some of the water reaches a rain garden - an area of native plants whose deep roots help absorb the water into the ground, and whose leaves help transpire water back into the atmosphere.

4. The yard also has several large trees whose leaves and branches intercept hundreds of gallons of water each time it rains, keeping that water from becoming run-off.

In this scenario, no water ever needs to reach the street and the public stormsewer system.

LID means doing this on a larger scale, and even though it saves money (today and in the future), it is still a very misunderstood, and little used method of handling rain water.

Why? A couple of reasons:

1. It isn't what most public works or consulting engineers learned in school. It is new, and perhaps seen as untested. Let's face it, stormsewers have been around for a long, long time. Builders, engineers, even the average person on the street, have a pretty good idea of how they work.

2. LID involves green stuff, not concrete. How can living things perform as well as -- or better than -- the concrete things we build? I think there is a suspicion of natural systems, because they are harder to quantify and predict. Fortunately, that is changing!

3. Our culture likes control. LID means turning over control of the rainwater to natural systems - to trees and rain gardens. LID means trusting living, growing green things to do their jobs. Yep, they will do what they are made to do whether we tell them to or not!

4. Local ordinances make it harder. Since LID is newer, many local governments do not yet have standards in place to facilitate these systems. Developers often have to fight for the right to use less -- or no -- stormwater piping!

It is time to embrace our natural systems, and to help them do what they are meant to do! It is a peculiar hubris that leads people to believe that they can design something that will operate better than the systems that Mother Earth provided! Call me a savage, but that seems very naive!