We live in a world of near continuous monitoring. In our automobiles we monitor the status of fuel, oil pressure, temperature, and seat belts through gauges, lights, and electronic voices. The consumption of electricity and fuel in our homes is monitored as is the chlorine in our drinking water and the alcohol in our beer. Manufacturers retain quality assurance inspectors and issue warrantees and guarantees to convince us that all is well. We monitor our schools and measure our own progress through grades and proficiency scores. It seemed appropriate, therefore, that the Illinois Natural History Survey should take a measure of the living natural resources of Illinois by bringing together a knowledgeable group of persons to summarize the state of the State. In order to share this information and to provide an opportunity for discussion, a symposium, "Our Living Heritage: The Biological Resources of Illinois," was sponsored by the Illinois Department of Energy and Natural Resources and organized by the Survey. The event, timed to coincide with Earth Day 1990 celebrations, was held on April 2.^ and 24 on the campus of the University of Illinois at Urbana-Champaign. It was attended by nearly 250 professional scientists from some 50 agencies and institutions along with a number of interested and dedicated citizens. To share the results of that symposium with an even larger audience, we have issued this publication of its proceedings.
To address the salient features of the living resources of Illinois in an ordered fashion, the symposium was presented in five sessions: forests, prairies and barrens, wetlands, streams and caves, and agro-urban ecology. When we consider that only (.).59t of Illinois remains in undisturbed natural areas, that Illinois ranks 46th among states in publicly owned open space per person, that forest acreage has decreased by 73% in the past century and tallgrass prairie by over 99%, that 85% of our wetlands have been lost, that soil erosion proceeds at the rate of 200 million tons per year, and that approximately 30,000 tons of herbicide and 3,500 tons of insecticides are used annually on agricultural crops in Illinois, we can scarcely imagine the tone of the symposium to have been anything but pessimistic. In part, there was discouragement, but it was tempered by positive developments, including the designation of the Middle Fork of the Vermilion River as a National Wild and Scenic River, the acquisition of the Cache River Basin, the initiation of a study to identify high-quality Illinois streams based on biodiversity, and the ever quickening actions of the Nature Preserves Commission.
Preservation/conservation has been in conflict with consumption/development since the days of Theodore Roosevelt. At times one side seems to prevail over the other, but the balance has been clearly on the side of consumption. Special interest groups have to a considerable extent managed to give the word environmentalist a pejorative cast and the word development a positive ring. During the past decade, the executive branch of the federal government has determinedly downplayed environmental concerns, and that stance has been translated into inertia in a number of federal agencies with responsibility for natural resources. The focus of the United States Environmental Protection Agency, for example, has until very recently ignored the living components of the environment. At the same time, public sensitivity to environmental concerns has dramatically increased, primarily through public service television and other media-generated presentations on tropical deforestation, extinction of species, depletion of the ozone layer, agro-chemical contamination of groundwater, and the effects of acid rain. Some of this concern is now being transformed into political action. Polls suggest that the public understanding of environmental matters is quite high, and some beheve that it exceeds the perceptions of elected officials. A Green Party has emerged in this country only very recently, but Greens are a part of both major political parties and the trend in federal legislation may soon begin to sway in favor of conservation/preservation and away from consumption/development. The National Institutes for the Environment may well become a reality within the next several years. Within this tentatively encouraging national picture, the symposium was timely indeed.
One symposium event of special interest cannot be documented in these proceedings — the "citizens respond" program of Monday evening, April 23—and I would like to note it here. Michael Jeffords and Susan Post of the Survey opened that session with a mulitmedia presentation on the biodiversity of Illinois. Their slides of representative plants and animals and habitats of the natural divisions of Illinois brought home to us the beauty and fragility that can yet be discovered in the landscape of our state. A panel presentation by five environmental activists followed: Clark Bullard, Office of Energy Research at the University of Illinois at Urbana-Champaign; Max Hutchison, Natural Land Institute of The Nature Conservancy; Lawrence Page of the Illinois Natural History Survey; Donna Prevedell, farmwife and contributing editor to the Progressive Farmer, and Michael Reuter, Volunteer Stewardship Network of The Nature Conservancy. They spoke briefly but openly on preservation activities in which they had been closely involved. The discussion was then turned over to the audience, who asked questions and shared their experiences—successes and failures—with preservation efforts.
I urge you to read on in order to understand the status of the biological resources of Illinois and to appreciate how much remains to be accomplished to secure their future—and ours. I would be remiss, however, if I did not conclude by acknowledging the committee of Survey staff who planned and conducted the symposium: Lawrence Page, Michael Jeffords, Joyce Hofmann, Susan Post, Louis Iverson, and Audrey Hodgins. Their efforts included developing the program, arranging for speakers and facilities, producing and mailing promotional materials, and welcomine the audience. Without their enthusiasm and hard work, the symposium v^ould not have materialized and our understanding of the biological resources of Illinois would be much diminished.
Lorin I. Nevling. ChiefIllinois Natural History Suney
Primary Insect Types in the Illinois Natural History Survey Collection, Exclusive of the Collembola and Thysanoptera
