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Ants cultivating afids on Digitalis purpurea - Purple Foxglove - Roter Fingerhut - Hesse - Germany - 01
 

 

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http://commons.wikimedia.org/wiki/File:Ants_cultivating_afids_on_Digitalis_purpurea_-_Purple_Foxglove_-_Roter_Fingerhut_-_Hesse_-_Germany_-_01.jpg

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50° 0′ 33.50″ N, 8° 33′ 50.12″ E

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Description
Deutsch: Ameisen (Myrmica rubra) melken Blattläuse (Aphis fabae) auf rotem Fingerhut (Digitalis purpurea), Hessen, Deutschland. Im unteren Bereich des Bildes sind einige von Wespen parasitierte, tote Blattläuse zu erkennen (aufgebläht und in brauner Farbe). Im oberen Bereich des Bildes ist scheinbar eine parasitierende Wespe zu sehen (siehe Bildnotizen). Solche Wespen können ungestört von den Ameisen ihre Eier in den Blattläusen ablegen, weil sie Botenstoffe produzieren, die die Ameisen glauben lassen, die Wespen seien Blattläuse oder Ameisen.
English: Ants (Myrmica rubra) cultivating/milking aphids (Aphis fabae) on Purple Foxglove (Digitalis purpurea), Hesse, Germany. In the lower part of the image, some parasitized dead aphids are visible (brown color, expanded body). In the upper part of the image, one winged insect is visible, which seems to be rather a parasitic wasp than a winged aphid (see image notes). Parasitic wasps can lay eggs in aphids undisturbed by the ants, because they have a chemical camouflage such that the ants think that they are either other ants or are aphids.
Acknowledgement: Many thanks to Hugh Loxdale, Richard Harrington and to the user Biopics for their help in assigning the aphid species and providing additional infomation. According to the two experts Hugh Loxdale and Richard Harrington, the aphid species on the photo is apparently Aphis fabae.
Date
Source Own work
Author Norbert Nagel

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This is one of the images forming part of the Valued image set: Aphids being attended by ants and parasitized by wasps on Wikimedia Commons. The image set has been assessed under the valued image set criteria and is considered the most valued set on Commons within the scope:
Aphids being attended by ants and parasitized by wasps

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Photo's description:
Ameisen (Myrmica rubra) melken Blattläuse (Aphis fabae) auf rotem Fingerhut (Digitalis purpurea), Hessen, Deutschland. Im unteren Bereich des Bildes sind einige von Wespen parasitierte, tote Blattläuse zu erkennen (aufgebläht und in brauner Farbe). Im oberen Bereich des Bildes ist scheinbar eine parasitierende Wespe zu sehen (siehe Bildnotizen). Solche Wespen können ungestört von den Ameisen ihre Eier in den Blattläusen ablegen, weil sie Botenstoffe produzieren, die die Ameisen glauben lassen, die Wespen seien Blattläuse oder Ameisen. Ants (Myrmica rubra) cultivating/milking aphids (Aphis fabae) on Purple Foxglove (Digitalis purpurea), Hesse, Germany. In the lower part of the image, some parasitized dead aphids are visible (brown color, expanded body). In the upper part of the image, one winged insect is visible, which seems to be rather a parasitic wasp than a winged aphid (see image notes). Parasitic wasps can lay eggs in aphids undisturbed by the ants, because they have a chemical camouflage such that the ants think that they are either other ants or are aphids. Acknowledgement: Many thanks to Hugh Loxdale, Richard Harrington and to the user Biopics for their help in assigning the aphid species and providing additional infomation. According to the two experts Hugh Loxdale and Richard Harrington, the aphid species on the photo is apparently Aphis fabae.
Licensing:
Creative Commons Attribution-Share Alike 3.0 Unported


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EXIF data:
File name ants_cultivating_afids_on_digitalis_purpurea_-_purple_foxglove_-_roter_fingerhut_-_hesse_-_germany_-_01.jpg
Size, Mbytes 7.249349609375
Mime type image/jpeg
Camera manufacturer NIKON CORPORATION
Camera model NIKON D7000
Image resolution in width direction 330
Image resolution in height direction 330
Unit of X and Y resolution 2
Exposure time 1/30 sec (0.033333333333333)
F number f / 8
Exposure program 1
ISO speed rating 100
Exif version 0230
Lens focal length 105 mm
Date and time original image was generated 2012:06:02 15:36:21
Shutter speed 4.9068905902692
Aperture 6
Exposure bias 0
Maximum lens aperture 3.1699249969261
Metering mode 2
Light source 10
Color space information 1
InteroperabilityOffset 800
Sensing method 2
Scene type 
CFA pattern 
Exposure mode 1
White balance 1
Digital zoom ratio 1
Focal length in 35 mm film 157 mm
Interoperability index R98
Interoperability version 0100
Copyright holder Norbert Nagel CC-BY-SA




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