Impact of cattle on two isolated fish populations in Pahranagat Valley, Nevada
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Authors: F. R. Taylor, L. A. Gillman, and J. W. Pedretti
Date: 1989
Journal: Great Basin Naturalist
Volume: 49
Number: 4
Pages: 491-495
Summary of Methods: Taylor et al. concluded that the removal of cattle from Ash Springs and Browne Springs caused a healthy rebound of the fish population in that stream. They had predicted that cattle were introducing harmful bacteria into the stream system, as well as high amounts of ammonia and nitrites. Once the cattle were removed from Ash springs, fish numbers climbed back to their pre-cattle numbers within the same year of cattle removal.
Article Summary / Main Points: None
Vegetation Types:
MLRA Ecoregions:
Agrovoc Control Words: Riparian zones Rangelands Wildlife
Article Review Type: Refereed
Article Type: Experimental Research
Keywords: ammonia, nitrates, disturbance, endemic fishes
Annotation: No grazing measurements were given, but authors state that it was the presence of cattle that caused the degraded stream conditions, especially the bacteria from cattle feces.
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