File:Hiking down the trail (8555342050).jpg
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[edit]DescriptionHiking down the trail (8555342050).jpg |
The Carolina northern flying squirrel is a cold-weather animal descendent from the northern flying squirrels pushed south by the ice sheets that covered northern latitudes during the last ice age. When the ice sheets receded, some of these squirrels found refuge on the tops of our highest mountains. Over the millennia, these squirrels differentiated from their northern cousins and today are a subspecies found only in the Southern Appalachians where northern hardwood forests give way to spruce-fir forests. One of the main ways biologists track populations of these squirrels is to provide nesting boxes, mounted high in trees, which are periodically checked to see if they’re occupied. If Carolina northern-flying squirrels are found using the boxes, those individuals are tagged, weighed and measured. On this day, the Service’s Sue Cameron joined Dottie Brown of the N.C. Wildlife Resources Commission to check a series of boxes off the Blue Ridge Parkway. Unfortunately no squirrels were found on this snowy day, but the trip provided the biologists an opportunity to replace degraded nest boxes. |
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Author | U.S. Fish and Wildlife Service Southeast Region |
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This image, originally posted to Flickr, was reviewed on 24 November 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date. |
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This image or recording is the work of a U.S. Fish and Wildlife Service employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. For more information, see the Fish and Wildlife Service copyright policy.
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current | 03:54, 24 November 2013 | ![]() | 6,000 × 4,000 (8.41 MB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transferred from Flickr by User:AlbertHerring |
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Camera manufacturer | SONY |
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Camera model | NEX-7 |
Exposure time | 1/400 sec (0.0025) |
F-number | f/4.5 |
ISO speed rating | 100 |
Date and time of data generation | 12:19, 25 February 2013 |
Lens focal length | 50 mm |
Orientation | Normal |
Horizontal resolution | 350 dpi |
Vertical resolution | 350 dpi |
Software used | NEX-7 v1.01 |
File change date and time | 12:19, 25 February 2013 |
Y and C positioning | Co-sited |
Exposure Program | Aperture priority |
Exif version | 2.3 |
Date and time of digitizing | 12:19, 25 February 2013 |
Meaning of each component |
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Image compression mode | 3 |
APEX brightness | 8.009375 |
APEX exposure bias | 0 |
Maximum land aperture | 1.6953125 APEX (f/1.8) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 75 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |