A method used to track animal movements that relies upon the detection of radio signals at specific frequencies.
A designation given to those species that are in danger of becoming endangered in the near future. An example of a threatened species in Montana is the bull trout.
A method in telemetry studies used to pinpoint where the exact location of an animal is by relying on the intensity of signals at three different points that form a triangle. The middle point receives the strongest signal.
A stream that flows into or joins a larger stream (for example, Monture Creek is a tributary to the Blackfoot River).
The relative clarity of water. An unclear (poor visibility) stream is usually caused by sediment flowing downstream with the stream current, like during spring runoff.
Streamflows, which causes disturbance of the water surface and produces waves. A riffle may be turbulent.