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Colletes inaequalis congregation area, PA by Dennis vanEngelsdorp

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About This Gigapan

Taken by
Dennis vanEngelsdorp Dennis vanEngelsdorp
Explore score
2.00 Gigapixels
Date added
Apr 19, 2011
Date taken
May 03, 2011

This is a large congregation of Colletes inaequalis, commonly known as the “Mining Bee.” This natural phenomenon occurs between March and July. The bee ranges from Nova Scotia, Canada south to Georgia, United States. This bee is known to be polylectic (diverse forage), but can specialize on pollinating apples. Colletes will fly about a half mile to a mile and a half for forage.

If you are lucky enough to find a congregation area, it is a sight to see. There can be hundreds to thousands of these small, excavated tunnels present on the ground. The bees are usually flying one to two feet above the ground as they return from foraging. It is important when observing the bees to be careful not to step on them! If you look closely inside the excavated tunnels you may catch a glimpse of the head of a female protruding out from the tunnel, or you may see her back down into the tunnel.

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Stitcher Notes


GigaPan Stitch version 1.1.1241 (Windows)
Panorama size: 2000 megapixels (59508 x 33612 pixels)
Input images: 540 (27 columns by 20 rows)
Field of view: 101.7 degrees wide by 57.4 degrees high (top=1.9, bottom=-55.6)
Vignette correction on: c1=0.0495 c2=-0.0349
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon EOS REBEL T1i, Canon PowerShot SX120 IS
Image size: 3648x2736, 4752x3168 (10.0 megapixels - 15.1 megapixels)
Capture time: 2011-04-15 11:54:03 - 2011-05-04 03:51:28
Aperture: f/8
Exposure time: 0.008 - 0.01
ISO: 80 - 100
Focal length (35mm equiv.): 36.1 mm - 361.4 mm
Digital zoom: off (+ 1 unknown)
White balance: Automatic, Fixed
Exposure mode: Manual
Horizontal overlap: 40.8 to 77.3 percent
Vertical overlap: 38.1 to 55.8 percent
Computer stats: 3509.84 MB RAM, 4 CPUs
Total time 1:31:26 (10 seconds per picture)
Alignment: 45:19, Projection: 13:33, Blending: 32:34
(Preview finished in 1:07:37)

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