Image:Vernal Pools 3.jpg
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Vernal pool flowers, with different species occurring in bands related to soil moisture and temperature gradients formed as the pool dries out. Sacramento National Wildlife Refuge, Calif.
Obtained from http://geochange.er.usgs.gov/sw/impacts/biology/vernal/
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This image is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of Interior. For more information, see the official USGS copyright policy |
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 17:25, 22 May 2007 | 243×362 (51 KB) | Neil916 | (Vernal pool flowers, with different species occurring in bands related to soil moisture and temperature gradients formed as the pool dries out. Sacramento National Wildlife Refuge, Calif.<br> Obtained from http://geochange.er.usgs.gov/sw/impacts/biology/v) |
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