| http://www.w3.org/ns/prov#value | - Joining them were Susan Kuse, a volunteer naturalist at the Nature Center who led a nature walk through the various representative IL ecosystems at the Nature Center, all of which are in a perpetual state of environmental management and restoration in order to control invasive species such as European buckthorn and common reed; and Marshall Eames, adjunct professor of natural science at Roosevelt,
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