"Bird use of heterogeneous native prairie biofuel production plots" will be presented by Jarret Pfrimmer.
Agricultural intensification has driven the loss of more than 90% of native grassland habitats in the Midwest. Consequently, grassland birds have declined more drastically than any other North American guild. Current biofuel production systems rely on high input monoculture crops that provide little habitat value to most grassland birds. The research investigates bird use of four diverse mixes of native prairie vegetation for biofuel production on three diverse soil types. This seminar will present data on visual breeding bird surveys and nest monitoring conducted over multiple years of growing, managing, and harvesting native prairie species for biomass production.
Karen Viste-Sparkman, wildlife biologist with Neal Smith National Wildlife Refuge, will discuss the ecological restoration at the Neal Smith National Wildlife Refuge. The seminar is free and open to the public. Refreshments will be served.
The 3rd annual UNI 5K 'Run for the Preserves," sponsored by the UNI Botanical Center and the Student Nature Society, is a cross-country run to promote awareness of UNI's natural preserves for students, faculty and staff as well as the Cedar Valley Community. The course winds through the Tallgrass Prairie along Dry Run Creek, into the Upland Forest and around the UNI Observatory.
Follow the link to register for the run on-line or print the registration form and drop it off at the UNI Botanical Center.
The Botanical Center and the Biology Student Nature Society will hold their annual spring plant sale. Plants for sale include many types of tropicals, herbs, vegetables and a limited number of orchids.
Anna Abney, M.S. in biology graduate candidate, will present her research findings on the effect of burn timing on insect assemblages in a recent prairie reconstruction. Refreshments will be provided.
Prescribed burning is a common management practice in prairie reconstructions, but many entomologists are concerned about the impact of burning on insect populations. The effect of fire on insects has been studied on remnant prairies, but little research has been done on reconstructed prairies, especially the first years after planting. This study examines how spring and fall prescribed burns affect the abundance and community composition of grasshoppers (Acrididae) and ground beetles (Carabidae) in a recent prairie planting.
John Pearson, Iowa Department of Natural Resources, will present "Perspectives of Iowa Savannas for Restoring a Pre-Settlement Landscape." Savanna was a major plant community of early Iowa occupying more than 2.4 million acres. Types of savanna differed ranging from park-like areas with widely distributed tress interspersed with prairie vegetation and virtually no shrub layer to dense thickets of woody species within a prairie matrix with a few stunted open growth trees. Oak savanna is regarded as a high priority for conservation because no original savanna currently exists. Interest in savanna restoration is increasing, but selecting sites to restore is influenced by variety of definitions and concepts. Pearson will explore contrasting concepts in savanna posed by historic maps, modern soil surveys and floristics, and relate them to the use of 1832-1859 General Land Office surveys, Mollic Hapludalf soil maps and plant indicator species in restoration. Refreshments will be provided.
Dr. E. Arthur "Art" Bettis of the University of Iowa's Department of Geoscience will outline the processes that formed the landscape of the Mississippi River valley during the last glacial period and over the past 10,000 years. Bettis will also discuss why bottomland restoration scenarios should incorporate existing information about the valley’s geomorphology to develop cost-effective projects and best management practices.
His teaching and research focus on landscape evolution during the past 2 million years. He pursues interests in the long-term behavior of eolian, fluvial and glacial systems and the impact of human activities on the landscape. His recent research involves the Homo erectus peopling and occupation of island Southeast Asia, stratigraphic and sedimentological studies of Midcontinet U.S. loess depositional systems, and the application of alluvial lithostratigraphy in stream management and restoration.
Molly Schlumbohm, a graduate student at the Tallgrass Prairie Center, will present "Maximizing Biomass Production of Prairie Vegetation as an Alternative Energy Source." Schlumbohm studied four treatments to determine the best mixture of prairie vegetation to maximize the production of biomass on marginal farmland. This biomass can be used as an alternative energy source to coal. Refreshments will be provided.
Carl Kurtz will discuss his native seed production process including seasonal management of the production site, harvesting method, machinery required, yield in pounds/acre and species diversity, bagging process, seed analysis and marketing strategy. Kurtz is a multi-talented naturalist and farmer who does freelance writing, photography, teaching, lecturing, tallgrass prairie reconstruction and produces native prairie seed. He is probably best known for his photography with photos appearing nationwide in more than 50 publications and is the author of Iowa’s Wild Places and A Practical Guide to Prairie Reconstruction.
Dr. Rick Lampe, professor of biology at Buena Vista University, will present "Student Field Trips to South Africa: Optimal Learning Experiences in an Exotic Environment," a composite discussion of historical, cultural and biological education gained from multiple field trips with Buena Vista students to South Africa. Student field trip participants have opportunities to experience the rich history and culture of South Africa as well as observing and studying the unique ecosystems and wildlife of that portion of the exotic African continent. Refreshments will be provided.