The Great Basin Naturalist, 1995, Vol. 55 (Classic Reprint)

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Excerpt from The Great Basin Naturalist, 1995, Vol. 55Emergence traps were anchored over Shal low riffles during the 1988 field season. Natural diurnal changes in water level and erratic discharges due to water release from Platoro Reservoir rendered these ineffective at times, therefore, their use was discontinued in 1989.Pitfall traps consisted of -cm2 modified aluminum soda cans that were buried ¿ush in streamside substrates. A mixture of 70% ethanol and ethylene glycol (the latter to retard evaporation) was used as a preservative. In 1988, 12 traps were installed 1 m from the stream at 1-m intervals on an open beach with nearby vegetation. This was expanded in 1989 to three transects, each consisting of 30 cans set 1 m apart in transects 1 m, 5 m, and 8 m from the initial Shoreline. These traps moni tored not only adult presence of ground-tra versing, brachypterous stoneflies, but also their potential to move laterally from the stream.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.