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AQUATIC HABITAT CONDITION INDEX, STREAM TYPE, AND LWESTOCK BANK DAMAGE IN NORTHERN NEVADA 1
Author(s) -
Myers Thomas J.,
Swanson Sherman
Publication year - 1991
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1991.tb01468.x
Subject(s) - riffle , riparian zone , environmental science , bank , hydrology (agriculture) , habitat , ungulate , vegetation (pathology) , ecology , geology , geotechnical engineering , medicine , pathology , geomorphology , biology
The quality of stream habitat varies for a variety of natural and anthropogenic reasons not identified by a condition index. However, many people use condition indices to indicate management needs or even direction. To better sort natural from livestock influences, stream types and levels of ungulate bank damage were regulated to estimates of aquatic habitat condition index and stream width parameters in a large existing stream inventory data base. Pool/riffle ratio, pool structure, stream bottom materials, soil stability, and vegetation type varied significantly with stream type. Pool/riffle ratio, soil and vegetation stability varied significantly with ungulate bank damage level. Soil and vegetation stability were highly cross‐correlated. Riparian area width did not vary significantly with either stream type or ungulate bank damage. Variation among stream types indicates that riparian management and monitoring should be stream type and reach specific.