Autor: |
Richard Clark, Mark Orr, Kent Willburn, Cinde Gilbert, John G. Sidle, Donna Stuart, Harold G. Nagel |
Rok vydání: |
1993 |
Předmět: |
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Zdroj: |
Remote Sensing of Environment. 43:333-341 |
ISSN: |
0034-4257 |
Popis: |
We counted sandhill cranes on thermal infrared images recorded by the Nebraska Air National Guard's AN/ADD-5 infrared reconnaissance system above the Platte River, Nebraska, in March and April 1989. Individual cranes roosting in the river at night were readily visible on the imagery. Cranes roosted in channel widths averaging 150 m, and there was a correlation between roost site and distance to wetland meadow. Wide channels and wetland meadows have declined greatly. The AN/AAD-5 can be used to supplement current sandhill crane population and habitat monitoring. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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