Why There Is No Cookbook for Restoring and Managing Prairies

From Anne Stine, Hubbard Fellow:

My big goal for this fellowship is to learn how to make a prairie from scratch.  I also want to know enough about prairie restoration/management that I can evaluate a prairie’s condition and then prescribe treatments to fix it.  For these first few months with The Nature Conservancy, and especially at the Grassland Restoration Network workshop (July 16-18, 2013 in Columbia, MO), I’ve been asking questions about the problems and solutions common to prairie restorations.  My naïve desire is to develop some sort of prairie restoration cookbook.  When I asked Chris why this didn’t exist, he laughed and said “If that were possible my book would’ve been a lot shorter.”  I built my flowchart anyway.

This blog post will be a bit different- I’m going to share the “Patch-Burn Grazing Flowchart” I developed.  Then Chris will respond and explain why the cookbook method doesn’t work.

(Click on the flowchart to see it as a larger image)

PBGbigfcResponse from Chris:

I give Anne credit – it’s clear she’s paying attention and learning a lot during the first couple months of her Fellowship experience.  Her flow chart includes very appropriate treatments for issues that pop up in prairies, and it’s a nice guide to some of those options.  However, prairie restoration and management is a more complex and dynamic process than can be easily captured in a flowchart (or even in a book).  That complexity can seem daunting to some, but is really what makes prairies fun and interesting to work with.  The trick is to accept the complexity and roll with it.

I've been working to rejuvenate our family's prairie south of Aurora, Nebraska for well over a decade.  It's getting there, but it's been anything but a straightforward process.  Every year brings new challenges and surprises.

I’ve been working to rejuvenate our family’s prairie south of Aurora, Nebraska for well over a decade. It’s getting there, but it’s been anything but a straightforward process. Every year brings new challenges and surprises, and we continue to tweak our management strategies.

When I wrote my book on managing prairies, I purposefully stayed away from prescribing any particular management regime (or recipe), and instead tried to provide some background on how prairies work and some guiding principles for managing them.  You can find a partial compilation of those ideas by going to PrairieNebraska.org and clicking on the “Prairie Management” or “Prairie Restoration” tabs at the top of the page.  There are lots of reasons I didn’t prescribe particular management recipes.  Here are a few of them:

1. Every prairie has its own unique species composition (plants, insects, animals, fungi) and that composition drives the way it responds to weather and management.  In some ways, prairie management is like parenting – each prairie (and child) has its own personality and needs to be treated in ways that match that personality.  The best parenting books are the ones that suggest general philosophies and offer tips to try in various situations.  Anyone who has been a parent knows that there is no cookbook for how to do it well.

2. Every year is different.  Last year was the driest on record for our Platte River Prairies.  This spring was very cool and wet, followed by a hot dry July, followed by a cool and wet August (so far).  Prairies respond very differently to fire, grazing, seeding, herbicide treatments, and other techniques due to weather conditions.  Countless times, we’ve applied a treatment to part of a prairie and were excited to see how it worked.  The next year, we applied the treatment in exactly the same way and things would turn out very differently.  We try to tailor our management and restoration to the weather, but we know we’ll be surprised by how things turn out.  Those surprises are what I look forward to most each year.

During the drought of 2012 this sandhill prairie was burned and grazed pretty intensively.  By late summer, it was looking pretty tough.

During the drought of 2012 this sandhill prairie was burned and grazed pretty intensively. By late summer, it was looking pretty tough.  The same burn timing and grazing stocking rate in a wet year would have resulted in a very different impact.

After adjusting our management plans to account for last year's drought, the prairie was grazed briefly this spring and - thanks to some good spring rains - looked lush and green by early June.

After adjusting our management plans to account for last year’s drought and grazing, the same sandhill prairie shown above was grazed briefly this spring and – thanks to some good spring rains – looked lush and green by early June.

3. Prairie restoration is not very predictable either.  We have developed and tested seeding rates, seeding methods, site preparation, and other techniques that seem to work well at our particular sites, but those same techniques wouldn’t necessarily work somewhere else.  One of the big pieces of advice shared each year at Grassland Restoration Network workshops is that when starting a large restoration project, the best plan is to spend several years experimenting with various techniques on small portions of the overall restoration site to figure out what works best at that particular location.  Once you figure out what seems to work best, start planting larger and larger areas each year.

However, even when the exact same techniques are applied, results can still vary from year to year.  Jeb Barzen and Richard Beilfuss did a great experiment at the International Crane Foundation in the early 1990′s in which they seeded 1 acre a year for five years, using the same seed mix and the same techniques.  Even though all the seedings were in the same crop field, each turned out very differently from each other.  The same thing happens everywhere.  Differences are partially tied to the rainfall and other weather that occurs in the early stages of the seeding, but there are many more factors that are difficult to understand or control.  This isn’t a bad thing, it just means that you have to relax your expectations a bit, and embrace the idea of variability.  Why would you want to create multiple prairie plantings that look exactly the same as each other anyway?

4. Invasive species are always a major challenge, and (you’ll not be surprised at this) have to be handled in unique ways depending upon the species and the site.  Every invasive species has its own growth and reproductive strategies, so an approach to controlling one won’t work well on others.  There are general approaches to controlling each species that have been tested and can be useful, but those approaches will work differently from year to year and from site to site.  One of most important aspects of invasive species control is prioritization, something Anne’s flowchart covers pretty well, and more information on that can be found here.

5. Finally, one of my guiding principles for prairie management is that diverse prairies require diverse management.  Doing the same thing every year means always favoring the same group of species – and, by default, managing against another group.  Eventually, that kind of repetitive management can reduce overall species diversity by eliminating plants or animals that can’t thrive under that management.  It’s good to mix things up to allow all the species in a prairie to have a good productive year now and then.

If a prairie is large enough, splitting it into multiple management units each year can help ensure that animals and insects can always find what they need for habitat (it’s more difficult to do that in very small prairies).  However, it’s also important to avoid simply splitting a prairie into the same three or four pieces and rotating management between them in a repetitive pattern – even those patterns can restrict species diversity over time.

Many prairie insects and animals have fairly specific habitat needs.  Grasshoppers, for example, tend to thrive best in prairies with patchy vegetation structure that allows them to move easily back and forth between shade and sun.  Splitting prairie into multiple management units each year can help provide the kind of habitat variety needed to maintain high species diversity.

Many prairie insects and animals have fairly specific habitat needs. Grasshoppers, for example, tend to thrive best in areas with patchy vegetation structure that allows them to move easily back and forth between shade and sun. Splitting prairie into multiple management units each year can help provide a variety of habitat conditions and maintain high species diversity.

During the next couple of months, Anne and Eliza will be part of our annual management planning process here in the Platte River Prairies.  Each fall, we go around to each of our prairies and go through a basic evaluation process.  How does the prairie look this year?  What were the impacts of weather and management this year?  What challenges, including invasive species, are we facing?  What kinds of management have occurred over the last several years?  What does the monitoring data from the last couple of years tell us about how past management has been working (sometimes we have hard data, but we always have field notes and other observations to consider).

We walk around, look at maps, and talk about ideas.  Then we sketch out a plan for the next season based on all of those factors.  We try to make sure it’s different from what we’ve done over the last year or two, but that it addresses the challenges the prairie is facing.  Most importantly, we make sure that we’re learning from and adapting to what we’ve tried in the past and the ways the prairie has responded.

I suppose I could capture that process in a flowchart.  It would look something like this:

Helzer Flowchart

That’s probably not exactly what Anne was hoping for, is it?

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About Chris Helzer

Chris Helzer is an ecologist and Eastern Nebraska Program Director for The Nature Conservancy. He supervises the management and restoration of approximately 4,000 acres of land in central and eastern Nebraska - primarily along the central Platte River. Chris is also the author of "The Ecology and Management of Prairies in the Central United States", published by the University of Iowa Press.
This entry was posted in Prairie Animals, Prairie Insects, Prairie Management, Prairie Natural History, Prairie Plants, Prairie Restoration/Reconstruction and tagged , , , , , , , , , , . Bookmark the permalink.

22 Responses to Why There Is No Cookbook for Restoring and Managing Prairies

  1. and nest the local flow-chart in a larger scale landscape ecological and sociological flow-chart that captures the drivers of degradation that lead to the need for restoration or reconstruction in the first place

  2. Great post Chris (as always!). I think the points you raise apply to a much wider range of ecological resoration systems, not just prairies. They certainly apply to temperate grasslands in Australia. On invasive weeds, I’d add a point that (imho!) most need a condition or set of conditions (often a legacy on prior land-use / mgt) occurring to assist / facilitate invasion – helps to have some insight into these what may be.
    cheers, Tim

  3. Malia Robinson says:

    We have the option of buying about 12+ acres adjacent to our farmstead in the furthest SE corner of Lancaster County. it is bounded by rural roads on two sides, our house on the north and a creek on one side (with a 50+ acre NRD lake, so lots of brome on the dam and Siberian Elm in our yard that we will start to take down). Mostly around that is agriculture, though there is CRD to the SE corner. There is a slough through the acres, with a designated wetland. We would love to purchase this and do a very small scale prairie restoration (we already have a tiny space at the homestead we are seeding). Would this be viable, given all the invasives and exposure to pesticide drift? The purchase option has been put off until the beginning of next year, so it would be good to give it some thoughtful consideration.

    • Chris Helzer says:

      Malia – I think you should go for it. Read my earlier post on managing small prairies, though, as some food for thought about how you might think about objectives. It’s not meant to be the definitive word on the subject, but rather to raise questions. http://prairieecologist.com/2012/03/05/how-should-we-manage-small-prairies/

      You’re right to think about invasives, but I think it’s likely that you can deal with them if you are thoughtful and proactive. I’d talk to Scott Luedtke at Nebraska Game and Parks Commission about some ideas for restoration. He’s a private lands biologist with Nebraska Game and Parks Commission out of Lincoln and a good guy to work with. He’s working with me on a project on my own land…

      You might also consider talking with Bill Whitney at Prairie Plains Resource Institute about the prairie restoration part. They do a lot of restoration work for people through their non-profit organization – often in conjunction with funding from people like Scott Luedtke. They harvest diverse mixtures of seed from eastern Nebraska and are really the only game in town for local-ecotype diverse mixtures at the moment.

      Good luck!

      • Malia Robinson says:

        Thanks Chris for your prompt and thoughtful response! My husband and I are Nebraska Master Naturalists and we both did our training at your Niobrara Preserve (me last year and Roger this year). We have come out to your Platte River Prairie for some work days. I really appreciate the support. We have also learned that our NRD has some grants for restoration and wanted to look into that more. We will also contact Scott if it looks as if we can actually purchase the land. it is a long story! We thought we had the right of first refusal based on our purchase agreement but the owner did not transfer that to our deed and has not respected it. In any case, the potential buyer of it, as part of a larger ag purchase has agreed to sell it to us. Our little patch now, less than half an acre is filled with Elm, brome and ragweed (though the latter has finally been taken over by sweet clover this year, not the greatest news), but the Big Bluestem and flowers are doing great. If we can manage it financially (first hurdle) there will be an uphill battle with the invasives! But we are excited by the possibilities, including a mini wetland (we love our water birds here). We haven’t contacted Bill Whitney yet, though we have the guide that you both developed. Randy, who works with the Loft, was in my husband’s NMN class. We will follow up. Thanks a lot and we will be in touch with you if all this goes through. We feel that any little effort we can make will contribute something to the environment!

  4. Glenn Pollock says:

    Add the problem that the neighbors do not understand what your are doing and do not want to understand. I am having difficulties with a home owner is have a fit about the weeds we are allowing to grown and want us to mow and plant bluegrass. Oh not weeds just native pioneer species. The restoration project is in an urban area. To make it worse he is a State Representative and razing hell. I can work with nature I can not deal with humans.

    • James McGee says:

      Glenn, Some problems can only be solved by better educating future generations.
      James

    • Glenn, there’s the #1 reason I’m so hesitant to rip out my lawn and seed in shortgrass. I want to do it BAD as an example, to show we don’t need to water every day and mow 2-3x a week, but I’m not confident in my landscape design (nor do I want to be active in defending it).

  5. timupham says:

    The International Crane Foundation has stored the prairie in Wisconsin.

  6. Keith Long says:

    Hi Chris – I like your flowchart! That is one of the major ideas that Allan Savory teaches, try something, assume you are wrong, monitor your results and adapt. I am pretty good at this since I am wrong so often. :).

  7. James C. Trager says:

    I like the bottom-most box of Anne’s flow chart the best.
    Maintenance of (continued interaction with) a restoration project can a life-long endeavor, and must be passed on to the next generation if the work of one life is not to be for naught.

    • Patrick says:

      Agreed James. This is especially true for private landowners who seek to restore their property. It is also a reason for private landowners to consider easements, because getting help with restoration is easier when the folks working with you know that the land will be permanently protected.

      • David says:

        It’s not that simple. Conservation easements can change the tax classification on the property. And depending on the State, your taxes can increase considerably. For example, I am familiar with Wisconsin; a conservation easement on a parcel will change the tax classification from agriculture to recreational land and comes with a property tax increase of 2 to 4x. Minnesota, by contrast, has a prairie bank program and qualifying lands are tax exempt. Permanent land protection, not to mention long-term land management, can be tremendous obstacles for private landowners to overcome financially.

        David

        • Patrick says:

          True David, it isn’t simple. But what are the other options then? Hoping an heir will take over management? Selling to someone who says they don’t want to change anything? Can’t rely on that. Perhaps donating the land when you pass then. I recall a conversation with a member of a private conservation organization who said he worked with a landowner to do some prairie reconstruction, only to see it converted back to crops when commodity prices rose. Same thing is happening now with CRP. Can’t blame them for their lack of enthusiasm in working with landowners who do not have some plan in place to get more permanent protection for their property. Clearly some effort is needed to change the law in Wisconsin. Don’t see that happening with the present administration though. You’re right though…private land restoration and protection isn’t cheap, but the personal rewards for me have been well worth the cost.

          • David says:

            Patrick,

            I think programs like Minnesota’s Native Prairie Bank and Native Prairie Tax Exemption http://www.dnr.state.mn.us/prairierestoration/prairiebank.html would be a tremendous boost in protecting lands for present and future generations. The landowner could use the Prairie Bank payment as the start of an endowment for covering future land management cost. It really comes down to public will (okay, maybe not in Wisconsin :-).

            David

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  9. Dunwiddie says:

    Did Beilfuss and Barzen ever publish on their experiment? I’ve heard various references to it over the years, but never seen anything written up. I haven’t ever been able to track anything down using the usual literature search tools.

  10. Erik Nickels says:

    Good post

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