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Life Histories of Stoneflies (Plecoptera) and Other Aquatic Insects in the Rio Conejos Drainage, Colorado

Description: Stonefly life histories were studied March, 1987 through May, 1990 in the Rio Conejos, Colorado. Adult presence phenology and intensity were monitored daily in the summers of 1988 and 1989 and were coupled with monthly benthic samples to assess nymphal growth. Eggs of several species were reared. Thirty-one species were collected, with several multi-species assemblages occurring in Capnia, Utacapnia, Taenionema, Suwallia, Triznaka, Isogenoides and Isoperla. Sufficient data were obtained to reve… more
Date: May 1992
Creator: DeWalt, Ralph Edward
open access

The Study of Temporal and Spatial Variability of Degree Day Factor of Snowmelt in Colorado

Description: Snowmelt is one of the major sources of surface water supply and ground-water recharge in high elevation areas and can also cause flooding in snow dominated watersheds. Direct estimation of daily snowmelt requires daily snow water equivalent (SWE) measurements that are not always available, especially in places without monitoring stations. There are two alternative approaches to modeling snowmelt without using direct measurements of SWE, temperature-based and energy-based models. Due to its sim… more
Date: May 2016
Creator: Pokhrel, Pranav
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