. Critical trends in Illinois ecosystems. Ecological assessment (Biology); Environmental impact analysis; Nature; Pollution; Conservation of natural resources; Environmental quality. Most fish richness measures were also close to statewide averages and habitat quality was slightly higher than the statewide average. many types of wetland â bogs, fens, seeps, and shallow and deep marshes. Some rare species and community types are limited in their distribution to this area of the state. Urban expansion from the Chicago metropolitan region continues to put severe pressure on the natural resources
. Critical trends in Illinois ecosystems. Ecological assessment (Biology); Environmental impact analysis; Nature; Pollution; Conservation of natural resources; Environmental quality. Most fish richness measures were also close to statewide averages and habitat quality was slightly higher than the statewide average. many types of wetland â bogs, fens, seeps, and shallow and deep marshes. Some rare species and community types are limited in their distribution to this area of the state. Urban expansion from the Chicago metropolitan region continues to put severe pressure on the natural resources here. Even though its boundaries include urbanized areas of the Chicago metropolitan region, the Illinois Beach RRA (77 square miles) is one of the most ecologically rich and unique areas in Illinois. Its location on the shores of Lake Michigan provides a diversity of habitats that support a wide variety of plants and animals. Significant and unusual topographic features include beaches, ridges and swales, and dunes. The area is an important migratory route for birds. The dominant feature of the Prairie Parklands RRA is the recently created Midewin National Tallgrass Prairie, the nation's first federally designated tallgrass prairie, at the former Joliet Arsenal. Significant natural resources include prairies, wetlands and streams. The largest. concentration of upland sandpipers in the state is in the Prairie Parklands area. The RRA takes in 239 square miles â 41% in this watershed and 59% in the KankakeeAtrmilion/Mackinaw watershed. ECOSYSTEM MONTTORING HBI values at the eight sites sampled by CTAP biol- ogists indicate moderate organic enrichment, while EPT richness was slightly below the statewide average. Most fish richness measures were also close to statewide averages and habitat qualit^â was slightly higher than the statewide average. One high quality stream was Person Creek below Kane Count)'s Lero\' Oaks Forest Preser\-e; it had high habitat quality, good EPT and HB
Size: 1562px × 1599px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorillinoisnaturalhistorysurveydivisi, booksubjectnature
