DeWalt R Edward, South Eric J, Robertson Desiree R, Marburger Joy E, Smith Wendy W, Brinson Victoria
University of Illinois, Prairie Research Institute, Illinois Natural History Survey, 1816 S Oak St., Champaign, IL 61820.
University of Illinois at Urbana-Champaign, Department of Entomology, 320 Morrill Hall, 505 S. Goodwin Ave, Urbana, IL 61801.
Zookeys. 2016 Jan 21(556):43-63. doi: 10.3897/zookeys.556.6725. eCollection 2016.
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.
美国国家公园保护自然群落已有百年历史。印第安纳沙丘国家湖滨区（INDU）是美国印第安纳州沿密歇根湖南部边界的一个公园单元。对19个地点进行了清查，这些地点包括一处渗流、12条溪流、4处沼泽、1处泥炭藓沼泽和1处沼泽，调查了蜉蝣目（Ephemeroptera）、襀翅目（Plecoptera）和毛翅目（Trichoptera）（EPT分类群）。志愿者和作者在2013年夏季收集了35个紫外线诱捕器，补充的底栖生物和成虫采样增加了未被灯光吸引或仅在较冷月份出现的物种。共发现78种EPT物种：12种蜉蝣、2种襀翅目昆虫和64种毛翅目昆虫。在INDU发现的EPT丰富度在印第安纳州已知物种数量中占比很低：毛翅目昆虫仅占该州已知动物群的32.7%，蜉蝣和襀翅目昆虫分别占8.4%和2.3%。各地点的EPT丰富度从一处渗流的1种到一条8米宽溪流的34种不等。溪流中的丰富度通常随溪流大小而增加。报告了7个新的州记录和珍稀物种。INDU的EPT物种数量略多于2013年在皇家岛国家公园发现的数量，且各目之间的群落组成和均匀度有所不同。
