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Upper Midwest Environmental Sciences Center

folder.gif Midwest Region of Amphibian Research and Monitoring Initiative (ARMI)

Terrestrial Wetland Global Change Research Network

Fig. 10. Recorded sounds at a single monitoring site in Talkeetna, Alaska (top), the Kenai National Wildlife Refuge, Alaska (middle), and Kootenay National Park, British Columbia (bottom). The contours represent decibel levels that indicate the amphibian and bird species that called, when they called, and the quantities of sound energy they produced.

Fig. 10. Recorded sounds at a single monitoring site in Talkeetna, Alaska (left), the Kenai National Wildlife Refuge, Alaska (middle), and Kootenay National Park, British Columbia (right). The contours represent decibel levels that indicate the amphibian and bird species that called, when they called, and the quantities of sound energy they produced.

Talkeetna, Alaska Kenai National Wildlife Refuge, Alaska Kootenay National Park, British Columbia

Late night sounds at this site in Talkeetna, Alaska, on May 19, 2010

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Late night sounds at this site in the Kenai National Wildlife Refuge on May 19, 2010

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Late night sounds at this site in Kootenay National Park on April 19, 2010

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Early morning sounds at this site in Talkeetna, Alaska, on June 15, 2010

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Early morning sounds at this site in the Kenai National Wildlife Refuge on June 15, 2010

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Early morning sounds at this site in Kootenay National Park on June 15, 2010

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