01706nas a2200193   4500008004100000245011900041210006900160300001300229490000700242520107100249653001901320653002101339653001601360653001801376653001501394100002001409700001701429856006601446       2008                        eng d00aLife history and production of the riffle beetle, Stenelmis crenata (Say) (Elmidae), in a tallgrass prairie stream0 aLife history and production of the riffle beetle Stenelmis crena  a197 -2040 v303 a<p>We examined life history dynamics and estimated production of the riffle beetle, Stenelmis crenata (Say, 1824), in a tallgrass prairie stream. Stenelmis crenata had a univoltine life cycle with larvae present year-round. Recruitment of first instars occurred from June&ndash;October, larval growth was synchronised through the winter, pupation occurred in late spring, and adults first appeared in late May. Adults were most abundant (24 individuals/m2) during summer and were present in samples through October. For larval biomass and production estimates, a body length&ndash;mass relationship (ash-free dry mass [AFDM] = 0.0079*TL2.7595) was constructed. Mean annual density and biomass of larvae were 235 individuals/m2 and 90.7 mg AFDM/m2, respectively. Annual larval production was 493 mg/m2/y, representing a total of &sim;101 g AFDM for the stream reach examined. Production estimates for S. crenata in this stream were high compared to other estimates for elmids, and this species comprised an appreciable portion of total scraper (13.5%) production.</p>10aaquatic insect10agrassland stream10aGrowth rate10aKonza Prairie10alife cycle1 aStagliano, D.M.1 aWhiles, M.R.  uhttps://www.tandfonline.com/doi/abs/10.1080/01650420802331141