Prairie Works is the source for ecological and landscape services in Northwest Illinois. Prairie Works can assist on projects large and small ranging from prairie, woodland and savanna restoration, invasive species control, controlled burning and bio-engineered erosion control. Prairie Works offers an environmentally friendly and dynamic solution to traditional land use practices and strives to connect people to the natural history of the area.

The Prairie Works Blog: A cyber bulletin posting articles, news, reports, information, statements, studies, inside dope, observations and ramblings since 2007. Please browse the archives at your leisure.

Tag Archive for 'prairie'

Prairie Works to Host Invasive Plant Seminars

Invasive & Weedy Species Management 101 Workshops Scheduled

Galena, IL: Prairie Works Inc., the source for ecological and landscape services in northwest Illinois, is pleased to announce that it will be hosting a series of workshops on invasive and weedy species management in cooperation with the Jo Daviess Conservation Foundation (JDCF).  The series is designed to provide education about the types and eradication of invasive and weedy species that inhabit our area, especially to individuals interested in volunteering to maintain JDCF’s public use sites. Anyone wishing to donate 10 hours of volunteer work to JDCF over the next year can attend the series at no charge.  Others are welcome at a cost of $40.00/person.

The first session will be held at 2 pm August 22nd at the Galena Adventure Center located next to Fever River Outfitters just before the floodgates in downtown Galena.  It will be a class room setting featuring a presentation by Cory Ritterbusch of Prairie Works on invasive species management.  The following sessions will be held outdoors over the course of several months led by expert staff from both Prairie Works and JDCF.  Participants will get hands on training in dealing with a variety of species such as thistles, reed canary grass, sweet clover, garlic mustard, and poison parsnip.  A winter session will focus on tree species and forest management.  Please reserve your spot by August 14th to the JDFC office at (815) 858-9100 or info@jdcf.org.

Dormant Seeding

Spring is most often associated with sowing seeds, mainly because it is standard in farming and gardening practices. But, if you are a prairie restorationist you have probably bundled up in winter clothes before seeding. Exposing seeds to winter’s punishing weather helps set the stage for successful germination come spring. This method is known as “Dormant Seeding” or “Frost Seeding” and it is becoming the preferred method for seeding most native plant species.

The 'Dormant Seeding' Method

Many native plant seeds, especially forbs (flowers), require a period of stratification before breaking dormancy. Stratifying seed can be done mechanically using several methods, the most common using sand paper. However, hiring Mother Nature to work for you has become recognized as the most effective method. Sowing seeds just before or during winter allows the snow, sleet, freezing rain, etc. to work the seed into the ground and the frost and thaw processes will then insert the seed into the proper depth in the soil. In May when soil temperatures begin rising the seed then “breaks dormancy.” Some of our more conservative species may require this to happen over the course of two or more winters before dormancy is broken.

Another great advantage of dormant seeding is the increased ability to recognize where the seed has been sowed. This is helpful in maintaining equal coverage across the seeding zone and also allowing the seeder to see what species have been put where (see the picture below).

 
The seeding mosaic

The seeding mosiac

 Timing is very critical with this process. Ensuring that this is done ahead of a snowfall will decrease the chances of predatory theft (Birds consuming it) and blowing wind carrying it away. It also assists in the compaction of the seed as its weight will push the seed into the snow. Sometimes your seeding window will be just a day or two or a few hours, so you must be ready to go when that  time comes.

Truly a road commissioners nightmare, a winter that provides many freeze and thaw cycles, provides optimum conditions for a dormant seeding to be successful. Although every winter should provide enough temperature fluctutuation to stratify the seed, I am starting to believe that some winters are just better than others. Any opinions out there? 

Like many of the processes involved in prairie restoration we are emulating the cycles and timing of the long-term past, which is what dormant seeding is modeled after. Seeds drop in the fall and germinate in the spring; this has been happening in prairies for millions of years. There are certainly situations and species specific situations for which a spring or summer seeding can be advantageous, but a winter experience is still needed to provide the seed with the opportunity of a full and happy life. Much like being a resident of the Midwest… 

Prairie?

The Cover to Swell and Swale

 

What a title to a post on this website. The word almost seems generic and overused here. However, it is June and PrairieWorks is very busy communicating with the public about this word, Prairie. To no surprise or fault, the word Prairie means many things to many people. In a world of loose talk and buzzword promotion it is easy to know why. To answer this, let me refer to Torkel Korlings fantastic book from 1972 The Prairie: Swell and Swale (ASIN: B000OFLY1U). The book, produced in Dundee, IL and published in the Netherlands, was sold at camera stores, nature centers, and by word of mouth throughout the 1970′s. If you happen to own this fantastic book you may be surprised by it’s value today. Nature photographer and publisher, Torkel Korling (1903-1998) provided the 64 prairie plant photos and the late great Dr. Robert Betz (1923-2007) was chosen to write it’s introduction.

The following are just a few excerpts from that introduction and the best explanation that I have found to the question:

What is a Prairie?

The prairie flowers have strangely enough dissapeared from open grounds, under the croppings of cattle and the clippings of the scythe. Only a half a dozen of sorts were seen in a ride of 30 miles, and these straggling at great distances.  Illinois 1847

It is surprising how quickly the Midwestern prairies dissapeared after the coming of the settlers, and even more surprising that any prairie flowers still survive after a century and a half of plowing and over grazing. The destruction has been so complete that most of the farmers in this vast region have never seen a virgin prairie. Most prairie plants are so rare or uncommon today that field guides published to aid naturalists in identifying plants do not evenn mention them.

Almost 300 years after french explorers described them, these prairies are only a memory. But still, the word lingers on in the English language to describe any open treeless area, even though it may have no native plants, and be covered with non-prairie grasses and weeds introduced from Europe and Asia. To some, “Prairie” means a vacant lot between houses; to others it is the open land of our Western states.

While most botanists and ecologists know fairly well what a prairie is and can easily recognize one, there is no agreement on a definition. One ecologist defines it as “an extensive tract of level or rolling land, destitute of trees, covered with coarse grass and usually charachterized by deep fertile soil.” Another calls it “the grassland dominated by tall prairie grass, and distinguished from the short grass plains.” Although it is difficult to find a defenition satisfactory to all ecologists, it is possible to describe a prairie in a general sense as a natural North American grassland, composed of native perrenial grasses and other herbaceous plants, in which grasses contributed much of the vegetative cover.

In fact, some relic prairies are very small in size – a fraction of an acre in an old cemetery, a short stretch along a railroad right-of-way or in a tiny patch in the corner of a farmers field. The term “prairie” then is still valid when it applies to those very rare relic grasslands, no matter how small, which have never been plowed or overgrazed. In short, these are remnants of grasslands on which the Illinois, Kickapoo and Miami Indians roamed and hunted the bison. Prairies of this nature, untouched by plowing or overgrazing and in thier pristine state, are called virgin prairies. Prairies which have been modified in some way by man or domesticated animals and which contain both prairie plants and introduced weedy plants are known as degraded prairies.

Outside of North America and on every other continent there are grasslands similar to our North American prairies. Each has a different name. In Eurasia they are known as steppes, while in South America they are collectively called pampa. South Africa has it’s veld, Austrialia it’s basalt plains, and New Zealand it’s Tussock grasslands.

Why, then were prairies fpund in the Middle West? The reason, presumably, was the presence of fire. The relatively flat ground, occasional drought, accumulation of dry litter and high winds and certain times of the year all combine to foster fires. Indians set many of these fires, but some probably had a natural orgin. With fire as an ally, coupled with winds blowing towards the east, the prairie vegetation was able to maintain itself in lands that otherwise would have been forested. In managing and caring for relic prairies, it has been found that fire does not injure the true prairie plants. In contrast, the few tree seedlings that might establish themselves in the dense prairie sod are killed by prairie fires.  

Prairie Grass, it has been frequently repeated, was originally found growing “taller than a man on horseback.” Or, “the settlers cattle were lost amid the prairie grasses.” These reports do not agree with the more reliable historical accounts, or with the observation of our best prairie remnants. While native grasses on low prairies with their great available moisture do reach heights of six feet or more, most of the late-season grasses are only half that tall.

While the Indians did little damage, the coming of the early settlers to the Middle West during the nineteenth century presaged the end of the prairies. The primeval vegetation that had occupied the land for thousands of years was to be destroyed and the land planted with man’s cultivated crops. 

Since so little prairie remains in the Midwest, efforts are being made to reestablish prairie on abandoned farmland. Seeds are collected from nearby prairie relics and planted. The results of projects by the University of Wisconsin at Madison and The Morton Arboretum, Lisle Illinois, show that hard work and luck fairly good prairies can be established within a few years on suitable land.

Even if there were no scientific value in prairies, it’s aesthetic appeal alone should warrant it’s preservation. It is one of our links with the past – a tie with the natural world. It seems immoral to destroy an integral part of the biological world from which mankind arose.

In our modern world with it’s artificiality, complexity and instability, wild prairies can provide us with places to go for peace and solitude. For this alone, prairies should be preserved and cherished.

     Robert F. Betz