File:Flickr - brewbooks - Magnetic Termite mound habitat.jpg
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[edit]DescriptionFlickr - brewbooks - Magnetic Termite mound habitat.jpg |
The biological significance of Magnetic Termite mounds The “Magnetic Termite” Amitermes meridionalis occurs only in a small part of the Northern Territory of Australia and builds famous wedge-shaped mounds with an elongated axis that is orientated in a striking north-south direction. This shape is unique among all other termite mounds which are always more or less spherical and many hypotheses have been advanced to explain the remarkable shape and orientation. Most of these investigations focus on the orientation, but the biological significance of the shape is rarely explored. The currently accepted hypothesis considers shape and orientation as adaptation to maintain a thermo stable eastern face. In contrast to this we consider habitat conditions, such as heavy rainfalls and regularly flooding in the wet season, as most important for the evolution of this shape. iussi.confex.com/iussi/2006/techprogram/P1435.HTM i09_0501 041 Kingdom:Animalia Phylum:Arthropoda Class:Insecta Subclass:Pterygota Infraclass:Neoptera Superorder:Dictyoptera Order:Isoptera Family: Termitidae
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Date | |
Source | Magnetic Termite mound habitat |
Author | brewbooks from near Seattle, USA |
Camera location | 13° 06′ 10.99″ S, 130° 50′ 38.68″ E ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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This image, originally posted to Flickr, was reviewed on 15 June 2012 by the administrator or reviewer Matanya, who confirmed that it was available on Flickr under the stated license on that date. |
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current | 07:41, 15 June 2012 | ![]() | 2,927 × 1,244 (1.6 MB) | Matanya (talk | contribs) | == {{int:filedesc}} == {{Information |Description=The biological significance of Magnetic Termite mounds The “Magnetic Termite” Amitermes meridionalis occurs only in a small part of the Northern Territory of Australia and builds famous wedge-shape... |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot SD850 IS |
Exposure time | 1/500 sec (0.002) |
F-number | f/5.5 |
ISO speed rating | 80 |
Date and time of data generation | 17:54, 30 April 2009 |
Lens focal length | 23.2 mm |
File change date and time | 17:54, 30 April 2009 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 17:54, 30 April 2009 |
Meaning of each component |
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Image compression mode | 5 |
APEX shutter speed | 8.96875 |
APEX aperture | 4.90625 |
APEX exposure bias | 0 |
Maximum land aperture | 4.90625 APEX (f/5.48) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 14,506.666666667 |
Focal plane Y resolution | 14,485.207100592 |
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 |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |