File:Measuring a tranquilized grizzly prior to affixing a radio collar (Northern Divide Grizzly Bear Project) (4428173662).jpg
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Summary[edit]
DescriptionMeasuring a tranquilized grizzly prior to affixing a radio collar (Northern Divide Grizzly Bear Project) (4428173662).jpg |
A tranquilized grizzly bear is monitored closely by field biologists while measurements are taken and a radio collar is attached. Radio collars are invaluable tools which allow bear researchers and managers to gather survival and reproductive data on individual bears. Once enough data, approximately 100 "bear years", is accumulated it becomes possible to mathematically estimate trends in the grizzly population. A "bear year" is gathered through monitoring a single bear over the course of one year. Thus, a sample of 25 collared bears tracked for 4 years would yield 100 bear years of data. Managers of the Northern Continental Divide Ecosystem (of which Glacier National Park is a part) are striving to keep 25 bears (primarily females with cubs) radio collared with state-of-the-art GPS/ARGOS collars. These collars locate themselves through the Global Positioning Satellite (GPS) system and then transmit their location to researchers through the ARGOS satellite system. This provides bear researchers and managers with invaluable data, including near real-time location information about individual bears. www.nrmsc.usgs.gov/research/NGSbear_monitoring.htm www.nps.gov/glac/naturescience/bears.htm |
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Author | GlacierNPS |
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This image, originally posted to Flickr, was reviewed on 14 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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current | 07:39, 14 November 2013 | 3,648 × 2,736 (5.23 MB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transferred from Flickr by User:AlbertHerring |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot A640 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/3.2 |
Date and time of data generation | 04:24, 9 May 2008 |
Lens focal length | 7.3 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 04:24, 9 May 2008 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 04:24, 9 May 2008 |
Meaning of each component |
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APEX aperture | 3.34375 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, auto mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 12,710.801393728 |
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Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
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Digital zoom ratio | 1 |
Scene capture type | Standard |