Ephemeroptera: Heptageniidae of Gunnison County, Colorado
Rhithrogena robustaDodds 1923
Updated 1 Jan 2012
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Introduction to Rhithrogena
ReferencesAllan,JD 1987 Macroinvertebrate drift in a Rocky Mountain stream. Hydrobiologia 144, 261-268.
Carlisle,DM; Clements,WH 2003 Growth and secondary production of aquatic insects along a gradient of Zn contamination in Rocky Mountain streams. Journal of the North American Benthological Society 22 4, 582-597. PDF
Clements,WH; Carlisle,DN; Lazorchak,JM; Johnson,PC 2000 Heavy metals structure benthic communities in Colorado mountain streams. Ecological Applications 10(2)626-638. Abstract
Quote from page 632: "In particular, abundance of the mayflies Rhithrogena robusta (Fig. 5b), Cinygmula sp.(Fig. 5c), and Drunella doddsi(Fig. 5d), and the stonefly Sweltsa sp.(Fig. 5e) was significantly lower at medium- and high-metal stations."
Courtney,LA and Clements,WH 2000 Sensitivity to acidic pH in benthic invertebrate assemblages with different histories of exposure to metals. Journal of the North American Benthological Society 19 (1) 112-127.Abstract
Dodds,GS 1923 Mayflies from Colorado: descriptions of certain species and notes on others. Transactions of American Entomological Society 69, 93-116.
First description of this species.
Dodds GS and Hisaw FL. 1925. Ecological studies on aquatic insects. IV. Altitudinal range and zonation of mayflies, stoneflies and caddisflies in the Colorado Rockies. Ecology 6(4)380-390. Abstract PDF
Gilpin,BR and Brusven,MA 1970 Food habits and ecology of mayflies of the St. Maries River in Idaho. Melanderia 4:19-40. PDF
Jensen,SL 1966 The Mayflies of Idaho (Ephemeroptera). M.S. Thesis, University of Utah, Utah. 364 p.
Quote from Page 195: "Dodds (1923) described this species from a series of nymphns collected in COlorado. Traver (1935b) and Edmunds (1952b) provide descriptions of the adults, and Dodds (1923) and Edminds (1952b) of the nymphs.
Taxonomy and Biology: This species is distinct taxonomically from all other species of Rhithrogena occuring in Idaho and, once nymphs of related species are known, may represent a new subgenus. Adults are easily distinguised by the unique structure of the penes on the male, and nymphs by gill structures.
The nymphs are usually found in small, rapidly flowing streams above elevations of 5,000 feet where they live on rocks in the swiftest portion of the current. Little is known about the biology of the adults. Edmunds (1952b) reports that single males have been collected in Utah during late June and early July.
Distribution: Rhithrogena robusta is a boreal western North AMerican species previously unreported from Idaho. "
McCafferty,WP; Durfee,RS; Kondratieff,BC 1993 Colorado mayflies (Ephemeroptera): an annotated inventory. Southwestern Naturalist 38 3, 252-274. PDF
Quote from page 262: "Dodds (1923) first noted that larvae of this species may or may not have pink or red gills. A parallel situation was discussed by Flowers and Hilsenhoff (1975) for the eastern and midwestern species R. impersonata McDunnough. "
Peckarsky,BL 1980 Influence of detritus on colonization of stream invertebrates. Canadian Journal of Fisheries and Aquatic Sciences 37, 957-963.
Peckarsky,BL 1991 A field test of resource depression by predatory stonefly larvae. Oikos 61 1, 3-10.
Wellnitz,T; Rader,RB 2003 Mechanisms influencing community composition and succession in mountain stream periphyton; interactions between scouring history, grazing and irradiance. Journal of the North American Benthological Society 22 4, 528-541. Abstract and full text
Brown,WS 2004 Mayflies (Ephemeroptera) of Gunnison County, Colorado, USA