Densities of tailed frog tadpoles in small streams following watershed disturbance

Document Type

Article

Journal/Book Title/Conference

Journal of the North American Benthological Society

Volume

7

Publication Date

1-1-1988

Keywords

densities, tailed frog tadpoles, small streams, watershed distrubance

First Page

246

Last Page

252

Abstract

Streams near Mt. St. Helens, Washington, differ in degree of watershed disturbance caused by the 1980 eruption. Summer densities of tailed frog tadpoles (Ascaphus truei) varied considerably both within and between several of these streams. Differences in density among streams were most clearly associated with differences in extent of forest in the basin. Streams in basins with little forest had maximum temperatures near 20°C and few Ascaphus. In completely or partially forested basins, maximum stream temperatures were

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