Bison, Grassland Birds, Dung Beetles, Bees, Small Mammals, Invasive Species, Bacteria & Fungi — these are all topics of ongoing study by Professors, graduate students and postdoctoral fellows at Nachusa Grasslands. I had the opportunity to photograph Nachusa’s first Science Symposium last Saturday, as an interested audience gathered at the Franklin Creek Grist Mill to hear several researchers present their work.
The ongoing research is amazing and exciting to hear about!
Dr. Elizabeth Bach and graduate student, Kim Elsenbroek, both study microbes (bacteria & fungi) in the soil and how they affect the success of prairie plants. Dr. Bach asks, “What are the microbes doing? When are they most active? How do the microbes affect the plants throughout the growing season? How do the microbes cycle nutrients?” Kim Elsenbroek compares the microbe activity in the soils of remnant (original unplowed prairie) versus successful and less successful prairie plantings.
Insect and Mammal Studies
How does the beetle community change following a prairie restoration? How has the introduction of bison affected the beetles? Answering these questions are important, because beetles are known to be a good indicator of ecological health. By the way, Dr. Barber is holding dung beetles in his hand!
How are the small mammals (mice, voles etc.) responding to bison introduction at Nachusa? To find out, Angela Burke baits live traps with peanut butter and oats to capture the mammals. After she gathers her data, she microchips them and releases the animals back into the prairie. The meadow jumping mouse has been her most exciting find, while the deer mouse has been her most common.
Graduate student, Sean Griffin, studies the most important pollinators in prairies — bees. How does prairie restoration change the bee communities? To collect the bees, he sets up his brightly–colored traps on warm, sunny days. His research compares bee populations in remnant prairies to those in restored prairies.
Seven female bison fitted with GPS collars provide hourly location points for graduate research student, Julie Brockman. Do the bison prefer restored or remnant prairies? How are bison affected by human activity? To learn more, read Julie’s article on page seven of the 2014 Prairie Smoke magazine.
I had the wonderful opportunity to assist Heather Herakovich this summer as she searched for grassland bird nests. Read more about my experience in my May 28 blog titled Searching for Grassland Bird Nests.
With the decline of tall grass prairies, nine grassland species are near–threatened or vulnerable. Heather looks for changes in nest density since the introduction of bison. How does nest density compare in restorations versus remnant prairie? Will the nests have more brood parasitism? (see photo)
The last presenter, Dr. Shannon McCarragher, looks at the ecological impact the non–native honeysuckle (Amur honeysuckle, Lonicera maackii) has on the native White Oak tree in a savanna. How much light does the White Oak require to establish a healthy savanna?
Many presenters speaking on Saturday were recipients of scientific research grants from the Friends of Nachusa Grasslands. The Friends . . .
“ . . . may award monetary grants to qualified candidates conducting scientific research significant to Nachusa Grasslands. Research projects should focus primarily on prairie and savanna land management practices, such as prescribed fire, seed collection, weed control, general or specific flora or faunal populations, and natural areas restoration.”
To learn more about the awarded Science Grants or to apply for a 2016 Research Grant, visit the Nachusa Grasslands website.