title: Mayflies, stoneflies, and caddisflies of streams and marshes of Indiana Dunes National Lakeshore, USA.
abstract: United States National Parks have protected natural communities for one hundred years. Indiana Dunes National Lakeshore (INDU) is a park unit along the southern boundary of Lake Michigan in Indiana, USA. An inventory of 19 sites, consisting of a seep, 12 streams, four marshes, a bog, and a fen were examined for mayflies (Ephemeroptera), stoneflies (Plecoptera), and caddisflies (Trichoptera) (EPT taxa). Volunteers and authors collect 35 ultraviolet light traps during summer 2013 and supplementary benthic and adult sampling added species not attracted by lights or that were only present in colder months. Seventy-eight EPT species were recovered: 12 mayflies, two stoneflies, and 64 caddisflies. The EPT richness found at INDU was a low proportion of the number of species known from Indiana: caddisflies contributed only 32.7% of known state fauna, mayflies and stoneflies contributed 8.4% and 2.3%, respectively. Site EPT richness ranged from one for a seep to 34 for an 8 m-wide stream. Richness in streams generally increased with stream size. Seven new state records and rare species are reported. The number of EPT species at INDU is slightly larger than that found at Isle Royale National Park in 2013, and the community composition and evenness between orders were different.
authors.affiliation: University of Illinois, Prairie Research Institute, Illinois Natural History Survey, 1816 S Oak St., Champaign, IL 61820.
authors.forename: R Edward
authors.initials: RE
authors.lastname: DeWalt
authors.affiliation: University of Illinois at Urbana-Champaign, Department of Entomology, 320 Morrill Hall, 505 S. Goodwin Ave, Urbana, IL 61801.
authors.forename: Eric J
authors.initials: EJ
authors.lastname: South
authors.affiliation: Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, Illinois 60605.
authors.forename: Desiree R
authors.initials: DR
authors.lastname: Robertson
authors.affiliation: Great Lakes Research and Education Center, Indiana Dunes National Lakeshore, 1100 N. Mineral Springs Road, Porter, Indiana 46304.
authors.forename: Joy E
authors.initials: JE
authors.lastname: Marburger
authors.affiliation: Great Lakes Research and Education Center, Indiana Dunes National Lakeshore, 1100 N. Mineral Springs Road, Porter, Indiana 46304.
authors.forename: Wendy W
authors.initials: WW
authors.lastname: Smith
authors.affiliation: 1545 Senator Lane, Ford heights, Illinois 60411.
authors.forename: Victoria
authors.initials: V
authors.lastname: Brinson
keywords: Ephemeroptera; Indiana Dunes National Lakeshore; Indiana Dunes State Park; Plecoptera; Trichoptera; inventory