A method used to track animal movements that relies upon the detection of radio signals at
specific frequencies.
threatened species
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.
triangulation
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.
tributary
A stream that flows into or joins a larger stream (for example, Monture Creek is a tributary to
the Blackfoot River).
turbidity
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.
turbulent
Streamflows, which causes disturbance of the water surface and produces waves. A riffle may be
turbulent.