Pacific Northwest Research Station

Title: Sampling methods for amphibians in streams in the Pacific Northwest.

Author: Bury, R. Bruce; Corn, Paul Stephen.

Date: 1991

Source: Gen. Tech. Rep. PNW-GTR-275. Portland, OR: U.S. Department ofÂ’Agriculture, Forest Service, Pacific Northwest Research Station. 29 p

Station ID: GTR-PNW-275

Description: Methods describing how to sample aquatic and semiaquatic amphibians in small streams and headwater habitats in the Pacific Northwest are presented. We developed a technique that samples 10-meter stretches of selected streams, which was adequate to detect presence or absence of amphibian species and provided sample sizes statistically sufficient to compare abundance of individual species among streams. Physical and biological parameters of streams are described as well as ways to collect amphibians effectively. The system can be modified for use in a variety of waterways and for different study objectives. We provide recommendations for improvements on future studies.

Keywords: Amphibians, Pacific Northwest, streams, sampling techniques

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Citation

Bury, R. Bruce; Corn, Paul Stephen.  1991.  Sampling methods for amphibians in streams in the Pacific Northwest..   Gen. Tech. Rep. PNW-GTR-275. Portland, OR: U.S. Department ofÂ’Agriculture, Forest Service, Pacific Northwest Research Station. 29 p