Under the Prairie Ice

“To keep every cog and wheel is the first precaution of intelligent tinkering.”–Aldo Leopold

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Polar Vortex! In the Illinois prairie region, all the chatter is about the week’s forecast: wind chill temperatures of 50-plus degrees below zero. Brrr! It’s a good time to dream a little bit about the summer to come.

One of my favorite tasks as a prairie steward is monitoring dragonflies.  People often ask me in the winter, Where are the dragonflies now? How do they survive the brutal cold? 

Some, I tell them, like the green darners and black saddlebags, have migrated south to reproduce. Later generations journey back north again, much like the well-publicized monarch butterfly. But most of our dragonflies are still here—in the nymph stage—under the surfaces of streams, ponds, and pools of prairie wetlands, waiting for spring and warmer temperatures. Under the prairie ice.

Dragonflies and their population changes tell us a lot about our water quality. Dragonfly responses to climate also help us understand what we see happening in the see-sawing temperatures and weather changes in the world around us. Good reasons to care! With this in mind, citizen scientists monitor dragonflies of all species, tracking their numbers each year.

We need our dragonflies. I’ve spent a lot of time kayaking and looking for dragonflies and damselflies on Silver Lake at Blackwell Forest Preserve in Warrenville, Illinois, just for fun.  But now, in this January cold, the lake is full of ice fisherman.

Just across the preserve, not far from the ice fishing houses, is my destination—the Urban Stream Research Center. Here, one of our most vulnerable insect species, the Hine’s emerald dragonfly, is being reared.

Some people dream of meeting sports heroes. Others, their favorite rock star. Me, I dream of seeing the Hine’s emerald dragonfly (Somatochlora hineana) winging its way through a prairie preserve. It’s our only federally-endangered dragonfly. Finicky? Yes! It has a lot of special requirements, including shallow flowing water and time spent in burrows made by the devil crayfish. 

During the winter months, I pore over my favorite dragonfly field guide by Kurt Mead,  part of the North Woods Naturalist Series…

… and open it to the Hine’s emerald dragonfly spread. Then, I think what it would be like to see the real thing.

Today, I’ll get part of my wish.

Heading up the project in its third year in the Chicago Region is DuPage County Forest Ecologist Andrés Ortega. His enthusiasm for dragonflies and passion for the project are evident from the first moment of my arrival at the center.

Andrés reaches into a refrigerator, and pulls out a dozen vials of tiny Hine’s emerald dragonfly nymphs.

The dragonfly nymphs are in “diapause,” just as nymphs are outdoors. These nymphs enjoy cool refrigerator temps of about 40 degrees Fahrenheit;  their normal overwintering temperature, Ortega tells me.

The eggs were gathered from gravid female dragonflies at known breeding sites in DuPage and Cook Counties, Andrés tells me.  Once netted, the tip of the female dragonfly’s abdomen is dipped into water—a process that simulates ovipositing—causing her to release her eggs. After the eggs are harvested, they are taken to a research laboratory in South Dakota. Here, they hatch and are cared for through their first months or even years of nymph life.

Then, they are driven to Illinois and hand-delivered to Ortega at the Urban Stream Research Center.

These are ferocious little critters. Andrés tells me they keep similar-sized nymphs with other similar-sized nymphs, as larger ones will enjoy the smaller ones for dinner if thrown together. Cannibalism! It’s a bug-eat-bug world out there. Staff carefully control the water quality (which should not be too clean) and water temperature.

In the spring, the nymphs will be released into the research center’s indoor raceways. These are long pools that mimic stream-like conditions. The temperature of the water in the raceways is carefully calibrated to reflect the rising temperatures outdoors.

Raceways are custom made by employees expressly for the dragonfly rearing. Sand, rocks, frayed rope pieces, and plastic aquarium plants offer hiding places for the nymphs. In about mid-May, the nymphs will begin feeding from a menu that includes small crustaceans and midge larvae. The screens and netting will keep midges from escaping and interfering with other research work at the center, such as mussel propagation.

It will take the dragonfly nymphs about four to five years to reach maturity, from the egg stage to the beautiful creatures of the air I see in my field guide. When ready to emerge, they will be released into suitable nature preserves in the state.

Ortega tells me that less than one percent of the Hine’s emerald dragonfly nymphs survive in the wild. Pretty slim odds, aren’t they?  I’m grateful to people like Andrés Ortega. He is one of our unsung heroes, doing the hard work of keeping part of the natural world from vanishing forever.

The next time you see a frozen prairie stream or pond this winter, think of the many different species of dragonflies waiting to emerge, just underneath the surface. Who knows? This might be the year we see more of the Hine’s emerald dragonflies, cruising through prairie wetlands. I’m planning to show up and look.

How about you?

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The Aldo Leopold quote that opens this essay is from Round River. Leopold is often referred to as the father of wildlife ecology and the United States’ wilderness system. Please visit The Aldo Leopold Foundation’s website to learn more about Leopold and his work, which is carried on today.

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Grateful thanks to Andrés Ortega for his tour of the Urban Stream Research Center; his patient answers to all my questions;  his reading and suggested edits for this blogpost (all remaining errors are my own); and his terrific work with dragonflies. Contact him at aortega@dupageforest.org.

Many thanks to super nice guy Kurt Mead, author of Dragonflies of the North Woods, Third Edition (2017), and Sparky Stensaas, co-owner of Kollath+Stensaas Publishing, who approved using the cover and pages with the Hine’s emerald dragonfly for this post (and also thanks to photographer Troy Hibbitts whose Hine’s emerald images (thehibbets.net) appear on those pages. If you are interested in dragonflies, you should own this beautiful guide–it is indispensable for Midwestern dragonfly chasers, even if you live a little further south of the North Woods (I live in Illinois).  Order from your favorite local bookseller, or online here.

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All photos copyright Cindy Crosby (top to bottom): Mt. Hoy, Blackwell Forest Preserve, Forest Preserve of DuPage County, Warrenville, IL; cold day at Springbrook Prairie, Naperville, IL; hundreds of Canada geese (Branta canadensis) on open water of Springbrook Creek at Blackwell Forest Preserve, Forest Preserve of DuPage County, Warrenville, IL;  male calico pennant (Celithemis elisa), Schulenberg Prairie, The Morton Arboretum, Lisle, IL:  ice fishing shacks on Silver Lake, Blackwell Forest Preserve, Forest Preserve of DuPage County, Warrenville, IL; Urban Stream Research Center, Blackwell Forest Preserve, Forest Preserve of DuPage County, Warrenville, IL; Cover of Dragonflies of the North Woods, Third Edition, by Kurt Mead (2017), courtesy Kollath+Stensaas Publishing and Kurt Mead; interior spread, Dragonflies of the North Woods, Third Edition, by Kurt Mead (2017), courtesy Kollath+Stensaas Publishing and Kurt Mead. Andrés Ortega (Homo sapiens), ecologist, Forest Preserve District of DuPage County, Warrenville, IL; vials of Hine’s emerald dragonfly (Somatochlora hineana) nymphs, Urban Stream Research Center, Blackwell Forest Preserve, Forest Preserve District of DuPage County, Warrenville, IL; Hine’s emerald dragonfly (Somatochlora hineana) nymph, Urban Stream Research Center, Blackwell Forest Preserve, Forest Preserve District of DuPage County, Warrenville, IL; Hine’s emerald dragonfly (Somatochlora hineana) nymph,Urban Stream Research Center, Blackwell Forest Preserve, Forest Preserve District of DuPage County, Warrenville, IL; Hine’s emerald dragonfly (Somatochlora hineana) nymph, Urban Stream Research Center, Blackwell Forest Preserve, Forest Preserve District of DuPage County, Warrenville, IL; water system, Urban Stream Research Center, Blackwell Forest Preserve, Forest Preserve District of DuPage County, Warrenville, IL; raceway system, Urban Stream Research Center, Blackwell Forest Preserve, Forest Preserve District of DuPage County, Warrenville, IL; life support system, Urban Stream Research Center, Blackwell Forest Preserve, Forest Preserve District of DuPage County, Warrenville, IL; Fox River, Geneva, IL.

Life in the Prairie Cold

“There was nothing so real on the prairie as winter, nothing so memorable.” — Martha Ostenso

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Seven degrees.

It’s that time of year on the prairie. You know. That time.  Frigid temps. Icy trails that make it an effort to get from point “A” to point “Z.”  Add a brutal wind, and it lessens any desire on my part to emerge from piles of blankets on the couch, or to leave my stack of library books and mug of hot chocolate.

There are reasons to go outside, however. Especially for those of us who love snow.

Or wonders in the sky. The lunar eclipse, or what was popularly called the “super wolf blood moon eclipse,” lured me out to my back porch after dark this week. In the western suburbs of Chicago, we had a savagely cold night for viewing, but oh! What a view! The moon seemed to chase Orion across the night sky as it progressed through its different darkened stages. Crisp stars sparkled as a backdrop for the eclipse. I returned inside long past my bedtime.

It was a good reminder: When you forgo being outside in January, the life of the natural world goes on as usual. It doesn’t miss your presence. But you are the poorer for missing the moment.

One particular afternoon this week, despite the breathtaking cold, Jeff and I hike the Springbrook Prairie Forest Preserve,  an 1,800 acre-plus natural area that is, one of three regionally significant grassland bird communities in the state.

Springbrook Prairie is home to short-eared owls, and is a confirmed site for nesting turkey vultures. Bobolinks and dickcissels can be heard singing in the spring. Springbrook also hosts the state-endangered northern harrier.

Today, however, nothing much moves in the wind except the brittle grasses and spent wildflowers.

Until…

A hawk flies up out of the tallgrass in the distance. Could it be the northern harrier? We hike faster, crossing our fingers.

It settles into a tree. We move in for a closer look.

Red-tailed hawk.  Common? Sure. Still magnificent. Although not the northern harrier we’d hoped for.

The rest of the bird life of Springbrook is noticeably silent. The Arctic winds that cause us to wrap our scarves more tightly around our heads are most likely the reason. But there is life here besides the red-tailed hawk. A ball gall next to the trail reminds us. Somewhere inside the gall, a tiny insect larvae is waiting to emerge. Pretty smart, I think, to spend days like today encapsulated in a warm sphere.

The sharp wind seems to be in my face, no matter which way I hike.

It sculpts blue shadows in the snow, carves ripples into the white stuff; scoops out gullies.

Tiny prints necklace the prairie, made by a tiny mammal. Brave—or hungry—to be out in this bitter cold. I remind myself I need to re-learn mammal tracks.

There are cars in the parking lot of the preserve, but we don’t see a soul on the trails. Springbrook Prairie is so vast! Few prairies in Illinois today offer these sweeping vistas in every direction. As we hike up a rise, we see clouds piled up in the east, more than 20 miles away over Lake Michigan. Part of the lake effect.  

Looking north, the preserve’s wetlands are partially frozen and and quiet.

In the west, the prairie could be a landscape painting. Or an old sepia photograph, perhaps.

A living painting or photograph, that is. The ball gall, the hawk, and the mammal tracks remind me of this. Under the ground, the deep roots of prairie plants wait. In only months, they’ll push green spears through the soil and completely change this icy world of the prairie I see today.

I realize I can no longer feel my fingers. Wind-burnt, frozen, we begin the hike back to the car and turn up the heater as high as it will go. Grateful for the warmth. But still…glad to have been a part of the life of the prairie for a moment. Content to have been present to our “landscape of home.”

And… ready for that hot chocolate and those library books.

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Novelist and poet Martha Ostenso (1900-1963) immigrated with  her family from Norway to Manitoba, then Minnesota. After living in New York City, she moved to Los Angeles and became a screenwriter. She died of complications from alcoholism.  The Wild Geese (1924) is her best-known novel, and, as her publisher writes, “Set on the windswept prairies, it is…a poignant evocation of loneliness… .”

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All photos copyright Cindy Crosby, and taken this week at Springbrook Prairie Forest Preserve, Naperville, IL, except where noted (top to bottom): snowfall at the intersection of the collections and wetland prairie plantings on the West Side of The Morton Arboretum in Lisle, IL; super wolf blood moon eclipse over author’s backyard prairie, Glen Ellyn, IL; gray-headed coneflowers (Ratibida pinnata), trail through the tallgrass; red-tailed hawk (Buteo jamaicensis); red-tailed hawk (Buteo jamaicensis); ball gall on goldenrod (probably either Solidago canadensis or Solidago altisissima) made by the goldenrod gall fly (Eurosta solidaginis); bur oak (Quercus macrocarpa) in the tallgrass;  blue shadows and spent wildflowers and prairie grasses; possibly mouse or  vole tracks in the snow; prairie wetlands; looking west on the prairie.

Thanks to Jennifer Crosby Buono, who explained the lake effect snow cloud formations to me that we saw to the east, and provided me with the link in the post.

For more information on galls, check out this interesting article from Entomology Today.

 

Saving Prairie

“Let us go on, and take the adventure that shall fall to us.” — C.S. Lewis

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Wolf Road Prairie! How could anyone resist visiting a nature preserve with a name like this one? It seems ripe with possibilities for adventure.

The sunshine over the 80-acre preserve is welcome, although the wind makes the temperature seem colder than the high 20s.

Jeff and I drive around the preserve, unsure where where the trails are. We can see prairie plants, so we know we’re in the right place. Hmmm.

Time to ask directions. A helpful member of the  “Save the Prairie Society” is shoveling snow, getting ready for an open house at the historical structure on the property. He greets us warmly, and shows us where the trails begin.

We see right away we’re not alone on the prairie. Look at those tracks! Rush hour.

Little critters have left their imprints, like sewing machine stitches, across the prairie.Who made the tracks? We wonder. Prairie voles? Mice? Difficult to tell.

We cross through a wetland…

…and see other signs of the preserve’s inhabitants.

A nest of a bird, long flown.

I’m puzzled by the interesting galls on the sunflowers. My gall knowledge is limited. Sunflower crown gall, maybe?

There’s a goldenrod bunch gall–sometimes called a rosette gall—I recognize on the other side of the trail. Like a dried out winter flower of sorts.

I make a mental note to refresh my gall knowledge—at least of the goldenrod galls! There’s so much to learn while hiking the winter prairie. Always something new, something different. Later at home, I’ll chase down different bits of information, based on our hike. Crown gall. Bunch gall. Adventures of a different kind.

As we hike the south-side prairie savanna remnant…

…we find sidewalks, left over from a pre-Depression Era time when this acreage was slated for a housing development. The contractors got as far as putting in the sidewalks before the project was scrapped. Jeff, who’s a history buff, is delighted.

I’m excited, too. According to an excellent article by the Salt Creek Greenway Association, the preserve was threatened again by a proposed housing development in the 1970s. The Illinois Department of Natural Resources and Forest Preserve District of Cook County were able to acquire the acreage and save the fine examples of savanna and black soil prairie remnant.  What a success story!

In January 2019, the story continues. Although the cooler palette of Wolf Road prairie in winter tends toward white, brown, and blue, with bits of pale yellow…

…little bluestem warms up the tallgrass with reds and golds. Its last clinging seeds sparkle in the sunshine.

Winter on the prairie brings certain plants into focus. Little bluestem is only one example.

In the summer, I appreciate pale purple coneflowers for their swash of pink-purple color across the grasses. In January, I find myself focusing on a single plant’s structure.

Culver’s root, bereft of summer pollinators and long past bloom, takes on sinuous grace and motion in stark relief against the snow.

Even the rough and tumble goldenrod assumes a more delicate beauty in silhouette.

I imagine what this prairie, savanna, and wetland preserve will look like in a few months. Covered with wildflowers. Limned with birdsong. Full of diverse color and motion. Still, seeing Wolf Road Prairie under a layer of snow in the sunshine has its own beauty.

We almost lost this prairie. Twice.

I’m grateful to hike it today.

In a time when so many of our natural areas are threatened, Wolf Road Prairie Nature Preserve stands as an example of what can happen when people care. What other prairies or natural areas should we speak up and protect today, which might otherwise be lost, underfunded, or developed? These are adventures in caring. Adventures in making a difference.

Somewhere, a new prairie adventure is waiting.

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The opening quote is from The Lion, the Witch, and the Wardrobe, a book in the series “The Chronicles of Narnia,” by C.S. Lewis. I love this series, and read it out loud to my adult children when they were growing up.

All photos this week are from Wolf Road Prairie Nature Preserve, Westchester, IL; copyright Cindy Crosby (top to bottom): sky over the wetland; compass plant (Silphium laciniatum) in the prairie display garden; hiking the north side of Wolf Road Prairie; small mouse or vole tracks in the snow; cattail (Typha latifolia, Typha angustifolia or Typha x glauca); unknown bird’s nest; possibly sunflower crown gall (a plant disease); goldenrod gall bunch or rosette—made by a goldenrod gall midge  (Rhopalomyia solidaginis); prairie savanna with bur oaks (Quercus macrocarpa); old sidewalk under the snow in the savanna; snow shadows on the prairie;  little bluestem (Schizachyrium scoparium); pale purple coneflower (Echinacea pallida) seedhead; Culver’s root (Veronicastrum virginicum); goldenrod (possibly Solidago canadensis); sign for Wolf Road Prairie; trail headed south with little bluestem (Schizachyrium scoparium), a rusty orange haze along the trail and in the distance.

Thank you to the members of the Save the Prairie Society and Heritage Project Committee who so generously pointed out trails, gave us a tour of The Franzosenbusch Prairie House Nature Center and Museum, and were warm and welcoming on our visit there. Check out their Facebook page and other social media.

Prairie Epiphanies

“Gratitude bestows reverence, allowing us to encounter everyday epiphanies, those transcendent moments of awe that change forever how we experience life and the world.” — John Milton

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Did you make a New Year’s resolution? One of mine is to visit nearby prairies and natural areas I’ve overlooked. Today, it’s Ferson Creek Fen Nature Preserve, in the western Chicago suburb of St. Charles.

I have a soft spot for preserves with a mosaic of different habitats. Ferson Creek Fen ticks off a lot of boxes. Restored prairie.

Wetland.

Floodplain forest.

The Fox River.

And yes—a namesake fen. What is a fen, you might ask? Here, think of low lands with peaty soil (usually alkaline—in this case—calcareous) that flood, brimming with wet-loving plants.

A boardwalk stretches through part of the preserve, protecting the sensitive wetlands. You can see the Fox River as a sliver of light in the distance.

It’s quiet in the 50-degree weather of this early January day. Our winter coats feel unnecessary.

A gull flies upstream.

Ice drifts in the current, not yet melted in the bright sun.

Downstream, a few kayakers brave the frigid water. The wetlands are painted with freeze and frost in the shadows. Cold is relative, when the sun is shining unexpectedly and the air teasingly whispers “spring.”

The warm planks of the boardwalk offer secure footing in the sunlight.

A steady hum of traffic to the west, punctuated by the squeaky calls of a white-breasted nuthatch nearby, compose the soundtrack for our hike. In the distance, Jeff and I see half a dozen unknown birds roosting in a tree. We step off the boardwalk to investigate. Hoping for something unusual, we plunge ahead on the grassy trail and discover…

…a tree full of….

…common mourning doves.

Ah, well.

They fly up at our approach, and despite myself, I marvel at the gradation of pastel colors in their feathers, dotted with inky black. The pink feet. Their eyes like polished jet-black beads.  I remember my grandmother, a science teacher, teaching me the call of the mourning dove. It was the first bird call I ever learned.

It’s a good reminder for me. There is beauty in the ordinary.

Complexity in everyday things.

All we have to do to is look.  Take a moment to reflect. Remember.

And be grateful.

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John Milton (1608-1674) was a British poet and writer, best known  for his epic poem Paradise Lost.  He also wrote the speech, Areopagitica, in a time of political and religious unrest (1644), an argument for freedom of speech, of the press, and of expression. He eventually went blind (probably from untreated glaucoma) in his late forties, then was imprisoned by a hostile regime and forced to leave his home. His poetry and works on religion and politics continue to be read long after his death.

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All photos copyright Cindy Crosby at Ferson Creek Fen Nature Preserve, St. Charles, IL (top to bottom) common milkweed (Asclepias syriaca) with unknown aster seedheads; remains of an unknown sunflower; ice on duckweed (probably common duckweed Lemna minor, but could be greater duckweed Spirodela polyrhiza or star duckweed (Lemna trisulca) and cattail base (Typha, either common latifolia, narrow-leaved angustifolia or hybrid xglauca); floodplain forest; the Fox River in January; view from the boardwalk; boardwalk through the nature preserve; Fox River reflections in January; unidentified gull flying downstream on the Fox River;  ice floes on the Fox River; view from the boardwalk; probably a red oak (Quercus rubra) leaf on the boardwalk; grassy trail; mourning doves (Zenaida macroura) roosting in a tree; willow pinecone gall made by the gall midge (Rabdophaga strobiloides); cattails (Typha latifolia, angustifolia, or xglauca) backlit by the sunlight.

Thanks to John Heneghan and Tricia Lowery for telling us about the preserve!

A Very Prairie New Year

“The ignorant man marvels at the exceptional; the wise man marvels at the common; the greatest wonder of all is the regularity of nature.” — G. D. Boardman

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2019.

The new year stretches ahead; an unmarked trail. Full of possibilities.

2018 is now water under the proverbial bridge.

Some of us don’t want to let go of the year; full of sweet memories and adventures.

For others, 2019 can’t happen fast enough.

2018 may have left us a little worse for wear.

The symbolism of the “clean slate” is attractive, either way.

Out with the old. In with the new.

Sure, the year ahead will hold new challenges. Some of them may leave us bent, broken, even temporarily defeated.

And yet.

The prairie reminds us that there is a rhythm to life. The tallgrass has its own predictability.

There will be a few curveballs. Predictability is always punctuated on the prairie by surprises.

The unexpected waits to emerge.

That’s part of the frisson, even tension of greeting a new year.

And part of the joy.

Where will the next days and months take us?

And will we be up to the challenges?

Let’s plunge in and find out.

*****

George Dana Boardman Pepper (1833-1913) was a pastor and president of Colby College in Maine.

All photos copyright Cindy Crosby (top to bottom) snowy trail through little bluestem (Schizachyrium scoparium), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; Willoway Brook in the Schulenberg Prairie Savanna, The Morton Arboretum, Lisle, IL;  tracks through the Schulenberg Prairie Savanna, The Morton Arboretum, Lisle, IL; dogbane or Indian hemp (Apocynum cannabinum), Fermilab Natural Areas, Batavia, IL; bug eaten leaf, Schulenberg Prairie, The Morton Arboretum, Lisle, IL; unknown tracks, Schulenberg Prairie, The Morton Arboretum, Lisle, IL; stack of 2018 season’s sweet clover (Melilotus alba and officinalis) along the two-track, Schulenberg Prairie, The Morton Arboretum, Lisle, IL; bee balm (Monarda fistulosa), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; Schulenberg Prairie, The Morton Arboretum, Lisle, IL;  Joe Pye weed (Eutrochium purpureum), Schulenberg Prairie Savanna, The Morton Arboretum, Lisle, IL; praying mantis (Mantis religiosa or possibly the Chinese mantis, Tenodera sinesis) egg case on fragrant sumac (Rhus aromatica), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; staghorn sumac (Rhus typhina), Schulenberg Prairie, The Morton Arboretum, Lisle, IL;  Illinois bundleflower (Desmanthus illinoensis), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; interpretive trail, Fermilab Natural Areas, Batavia, IL; Willoway Brook tributary through the Schulenberg Prairie Savanna, The Morton Arboretum, Lisle, IL.

Thank you to Candy Peterson for bringing the opening quote to my attention! Grateful.