Fall 2017 Michigan Nature Magazine

Fall means back to school, and that new reality brings a seasonal change to the daily migration routes for many Michigan families.

Fall is an especially great time of year to connect kids to nature and the incredible changes that unfold. As students – and their parents – adjust their new clocks and adapt to a new school year, here at MNA we are working with teachers to enrich their student’s classroom learning by using MNA nature sanctuaries as living laboratories. Our schools-to-sanctuaries initiative is creating exciting new partnerships across the state, like the one described by Addison High School teacher Aaron Wesche in this issue’s Q&A (p.33).

Cooler temperatures and decreasing daylight are signals for migratory birds and insects that it is time to leave their northern breeding grounds for warmer winter climes. Some make extraordinary difficult journeys to do so. One of the most astonishing dramas in nature is the annual Monarch butterfly migration from the northern U.S. to a tiny strip of forest in Mexico. Take yourself to a Great Lakes beach or an MNA nature sanctuary with open fields this time of year and wait and watch. You’ll very likely see one of these stunning and fragile beauties flit by as they make their miraculous journey to Mexico.

Sadly, those who have spent a lifetime watching the Monarch migration for the sheer joy of it will tell you they don’t see as many butterflies anymore. Scientists who study the Monarch have confirmed this. In this issue, noted Michigan author Bill Rapai tells the story of how the Monarch migration is now in serious danger of disappearing (p. 18).

The good news is that we can play a role in helping this extraordinary migration (while also helping other declining pollinators). We know that many of our nature sanctuaries provide necessary places for fuel and rest for Monarchs on their journey, but we also know much more needs to be done.

With your continued support MNA will be working to create more Monarch-friendly habitat within our statewide network of sanctuaries; help inspire the next generation to care about Michigan’s natural wonders like the Monarch butterfly through our education programs; and coordinate our work on Monarch conservation with the work of like-minded groups in Michigan, across the Midwest, and Mexico.

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Showcase Sanctuary: Dowagiac Woods

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Hunter’s Creek. Photo: Dan Sparks-Jackson

By Michelle Ferrell, MNA Intern

Since its establishment as a Michigan Nature Association sanctuary in 1983, Dowagiac Woods has become renowned for its dazzling, weeks-long display of spring wildflowers.  In fact, this in part is what inspired the Michigan Nature Association’s interest; shortly after a member visited the woods in 1975 and noted the abundance of Blue-eyed Mary on a 220-acre forest lot that was for sale, an appeal was made for funding to purchase it. The original purchase has since been expanded to encompass an additional 164 acres.

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Trails of Wildflowers. Photo: Judy Kepler

Every year visitors walk the trails meandering through the diverse blooms, some of which are hard to find elsewhere in the state. However, Dowagiac Woods is a unique example of the value of Michigan’s natural heritage, not just for its famed spring wildflowers, but because it’s a largely undisturbed 384-acre block of high-quality forest habitat with ample biodiversity to support a variety of Michigan-native wildlife, including many rare and some endangered species. Nearly 50 kinds of trees and hundreds of various other plant species, as well as close to 50 kinds of birds, have been catalogued by MNA. These include the Yellow-throated warbler whose clear songs grace visitors with joyful notes, the notorious Pileated woodpecker, and the rare and lovely Cerulean warbler.

Large, intact forest blocks like Dowagiac Woods are vital to the composition of habitats that support an array of wildlife, yet are becoming increasingly rare in southern Michigan as landscapes are fragmented by industry and human use. Additionally, the majority of Michigan’s intact forests reside in the upper half of the state. Thus, as the largest MNA sanctuary in the southern Lower Peninsula and a rare, high-quality example of the natural state of Michigan’s mesic southern and southern floodplain forests, Dowagiac Woods is truly a state treasure.

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Dowagiac Woods the largest MNA sanctuary in the southern Lower Peninsula. Photo: Patricia Pennell

The ecological importance of biologically diverse plant communities can’t be overstated. Plants form the basis of habitats and aid in performing various hydrological functions not limited to natural flood control, water purification, and the cycling of water. They anchor and enrich the soil, cycle important nutrients, and convert carbon dioxide into breathable oxygen. Forests also act as important carbon sinks by storing large amounts of carbon dioxide. The more diverse the community of plants that make up a community, the more efficiently it can function as a whole and perform these essential services. When biodiversity drops, ecosystems become less resilient against disturbances like disease or fire, because a single species comprises a much greater proportion of the plant community and its decline takes a greater toll.

With the exception of a section of woods that was selectively cut in the 1960s, the majority of Dowagiac Woods has thankfully remained undisturbed. The Michigan Nature Association’s mission is to preserve and maintain pristine areas like Dowagiac Woods. With soil that has never been plowed and trees that have never been clear-cut, it is the closest illustration of how Michigan’s forests may have looked prior to settlement. Visitors are encouraged to walk the trails and take in the rare sights and sounds of the many unique species found there. With careful management, what remains of Michigan’s natural heritage may yet be enjoyed for generations to come.