Missouri Natural Areas Newsletter 2015
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2015 NaMItuSSOURIral AreVolume 15,as Number 1 N E W S L E T T E R “…identifying, designating, managing and restoring the best remaining examples of natural communities and geological sites encompassing the full spectrum of Missouri’s natural heritage” Missouri, but not overwhelming to someone with- Editor’s Note out academic training in entomology. I wanted to Missouri’s Insect Diversity know about the leafhoppers in my yard, about all the different sweat bees that visit my bright yellow everal years ago, in the spring following a cup plant flowers in August, and the cicadas and December prescribed fire event in my urban katydids whose choruses I hear around my bun- Swoods, we discovered a motley assortment of galow in summer months. I recall Ted’s response, highly charismatic leafhoppers that we wanted to always professional and friendly, and it was volu- identify. Rather than visiting random internet sites minous. According to The Terrestrial Natural Com- of questionable scholarship and accuracy, I asked munities of Missouri (Nelson, 2010), in 2000, 87,107 esteemed entomologist and tiger beetle expert Ted native species and subspecies of insects existed in MacRae for a field guide for insects appropriate for Missouri. Asking an expert in this highly special- Pink-striped oakworm moths in the Elk River Breaks Woodland Natural Area. The caterpillars of this moth feed on oaks (Quercus spp.), the dominant canopy tree in the natural area at Big Sugar Creek State Park. While some consider this species a forest pest, it has been well-documented that oak-specific caterpillars provide an important food source for breeding songbirds. Photo by Allison J. Vaughn Vol. 15, No. 1, 2015 • Missouri Natural Areas Newsletter 1 Photo by Douglas Miller Even in an urban setting, charismatic insects such as this candy-striped leafhopper (Graphocephala coccinea) can persist in a dense thicket of cup plant (Silphium perfoliatum). ized field for a basic pictorial guide to insects was Much has been written in recent months about probably a bit naïve on my part. But Ted deliv- the importance of pollinators on the landscape, ered with a reference to Eric R. Eaton and Kenn fueling an interest in creating pollinator habitats Kaufman’s Field Guide to Insects of North America, through gardening. The mission of the Missouri a wonderful and user-friendly identification book Natural Areas Program involves the recognition for the general user such as myself. I am not an and preservation of our state’s best remaining entomologist by any stretch, but I have an interest examples of natural communities with all facets of in our state’s rich insect diversity, and the role of a biodiversity represented. While pollinator gardens biodiverse insect population in all of the systematic have been proven to provide nectar and nesting ecological functioning of our native landscapes. sites for suites of pollinating insects, it would be Missouri is fortunately home to a range of experts remiss to disregard the role of Missouri’s intact na- in ants, bees, tiger beetles, dragonflies and damsel- tive landscapes, especially our designated natural flies, katydids and the myriad of other insects that areas, in the protection and sustainability of insect inhabit our natural landscapes. For the 2015 issue diversity. The historic natural setting throughout of the Missouri Natural Areas Newsletter, we have much of the state, a landscape that existed before invited several leaders in the field of entomology to the age of extraction began, included thousands discuss their areas of interest and research, and to of acres of a grass-forb matrix that hosted not just share their thoughts on specialized biota and insect monarch butterflies but an entire suite of insects diversity in Missouri. This is a large topic to cover, and other biota that have been largely extirpated, and I recognize that we have only scratched the barring populations that persist in remnants of proverbial surface of knowledge in Missouri. high quality landscapes today. The restoration of 2 Missouri Natural Areas Newsletter • Vol. 15, No. 1, 2015 natural landscapes with a heterogeneous NATURAL AREAS FEATURED IN THIS ISSUE mix of native flora should be tantamount in conservation planning for pollinating in- Star School Hill Prairie sects, but restoration methods must be carefully Brickyard Hill Loess Mound implemented. Our highly fragmented, disturbed, McCormack Loess Mounds and out-of-context landscapes may harbor some Meramec Mosaic of the last remaining populations of rare species, Johnson's Shut-Ins Fen both plant and animal. St. Francois Mountains With the 2005 publication of Paul Nelson’s The Grasshopper Hollow Terrestrial Natural Communities of Missouri, the Mis- Mingo souri Natural Areas Committee endorsed the use of carefully applied prescribed fire for the restora- Contents tion and maintenance of Missouri’s fire-mediated The Role of Missouri’s Natural Areas and Other systems. Since that time, fire management has Conservation Lands in Preserving Tiger Beetle Diversity been used on a larger, landscape-sized scale, invit- Ted C. MacRae ................................................................. 4 ing a series of questions and concern regarding the Contributions of Designated Natural Areas to Recovery sustainability of relictual populations of insects Efforts of Hine’s Emerald Dragonfly in Missouri Dr. Paul M. McKenzie........................................................ 8 and other biota. Without fire, the landscape will Searching for Potential Prairie Orchid Pollinators no longer provide the necessary facets for the sus- Dr. David Ashley ................................................................. 12 tainability of a given species, but with improperly Native Bees of Meramec Mosaic Natural Area applied fire, the very disturbance that certain in- Dr. Alexandra Harmon-Threatt. .......................................... 16 sects depend on may be the cause of their demise Ant Diversity in Fire-mediated Systems in the Ozarks Lizzie W. Wright ..............................................................20 or, worse, extirpation. Emulating natural distur- Butterfly Species as Habitat Indicators bance processes on a landscape scale will naturally Brett Budach ...................................................................24 allow for refugia, if the process is properly imple- St. Francois Mountains Natural Area Highlights mented. This issue of the Missouri Natural Areas Ron Colatskie .................................................................. 27 Newsletter highlights research on native bees, rare Mingo Natural Area Ben Mense .......................................................................31 orchid pollinators, and other insects that serve as 2014–2015 Calendar of Events ............................................ 32 lynchpins for functioning ecosystem health. Con- tact the authors of the respective articles for more The Missouri Natural Areas Newsletter is an annual journal published by the Missouri Natural Areas Committee, whose information and to continue the dialogue. mission is identifying, designating, managing and restoring the — Allison J. Vaughn, editor best remaining examples of natural communities and geological sites encompassing the full spectrum of Missouri’s natural heritage. Allison Vaughn is the Ozark District Natural Resource Steward with The Missouri Natural Areas Committee consists of the Missouri the Missouri Department of Natural Resources. Department of Natural Resources, the Missouri Department of Contact: [email protected] Conservation, the U.S. Forest Service, the U.S. Fish and Wildlife Service, the National Park Service and the Nature Conservancy. Ø To receive notification when new issues of the Missouri Natural Areas Newsletter are posted, e-mail [email protected]. This list-serve is only used to notify people of the link to the current natural areas newsletter web posting. Vol. 15, No. 1, 2015 • Missouri Natural Areas Newsletter 3 Photo by Christopher R. Brown Saline Springs Tiger Beetle (Habroscelimorpha circumpicta johnsonii) The Role of Missouri’s Natural Areas and Other Conservation Lands in Preserving Tiger Beetle Diversity By Ted C. MacRae slightest movement, long thin legs for running down prey, and large, toothy jaws for grabbing and hen Missourians think about wild- promptly dispatching their hapless victims. While life diversity, usually the state’s 800+ representing only a tiny fraction of the total insect W species of fish, amphibians, reptiles, fauna in Missouri, the 24 species of tiger beetle birds, and mammals come to mind. In reality, the that live in the state still represent a level of diver- diversity title belongs to the perhaps 25,000 spe- sity worthy of study and protection. cies of insects that share habitats with vertebrates, Tiger beetles frequently live in disturbed habi- ranging from the microscopic (springtails) to the tats with sparse vegetation, such as sandbars and annoying (mosquitoes) to the revered (monarch erosion cuts, as well as along muddy banks, on butterfly). Among the most charismatic insects in glades and in forest litter. European settlement Missouri are the tiger beetles, predaceous insects resulted in drastic alterations in the abundance that favor open ground in a variety of lowland and distribution of these habitats, and tiger beetle and upland habitats. Like their big cat namesakes, populations have been affected as a result. Dredg- tiger beetles have huge eyes that can detect the ing and straightening