File:Bioluminescent beetle Elateroidea (video).webm
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Original file (WebM audio/video file, VP8/Vorbis, length 55 s, 1,920 × 1,080 pixels, 4.92 Mbps overall, file size: 32.28 MB)
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[edit]DescriptionBioluminescent beetle Elateroidea (video).webm |
English: Video of a bioluminescent beetle Elateroidea (Lampyridae Ototretinae Stenocladius or Rhagophthalmidae), here moving on a banana leaf. This specimen measures about 20 mm (0.79 in). The species produces and emits light, via a chemical reaction during which chemical energy is converted into light energy. The principal chemical reaction in bioluminescence involves some light-emitting molecule and an enzyme, generally called the luciferin and the luciferase, respectively. Oxidation of organic compounds induces photon emission. The intensity of this light can be perceived by the human eye in a radius of 2 m (6.6 ft). At any time, the insect can also decrease the intensity or even completely stop emitting its light (example here). Bioluminescent beetle species are in regression in the World because of the phenomenon of light pollution, insecticides and climate change. This specimen comes from the island of Don Det, Si Phan Don, Laos, in a wild area far from any major city.
Français : Vidéo d'un coléoptère bioluminescent Elateroidea (Lampyridae Ototretinae Stenocladius ou Rhagophthalmidae), ici en mouvement sur une feuille de bananier. Le specimen mesure environ 20 mm (0.79 in). Cette espèce produit et émet de la lumière via une réaction chimique au cours de laquelle l'énergie chimique est convertie en énergie lumineuse. Le composé chimique à l'origine de cette bioluminescence est la luciférine. Celle-ci émet de la lumière en s'oxydant grâce à l'intervention de la luciférase, une enzyme. L'oxydation de composés organiques induit une émission de photons. L'intensité de cette lumière peut être perçue par l'oeil humain dans un rayon de 2 m (6.6 ft). A tout moment, l'insecte peut aussi diminuer l'intensité ou même totalement cesser d'émettre sa lumière (exemple ici). Une lampe d'appoint douce et diffuse a été apportée à proximité pour révéler les détails de l'animal. Les espèces bioluminescentes de coléoptères sont en voie de régression dans le Monde à cause du phénomène de pollution lumineuse, des insecticides et du dérèglement climatique. Ce specimen habite l'île de Don Det, Si Phan Don, au Laos, dans une région sauvage éloignée des grandes villes.
Čeština: Bioluminiscentní larva brouka z čeledi světluškovití leze po bánánovém listu. Larva je dlouhá přibližně 20 mm.
Эрзянь: Биолюминесцентной шунжа Elateroidea (Lampyridae Ototretinae Stenocladius эли Rhagophthalmidae), тесэ моли бананонь лопава. Онкстави 20 millimetres (0.79 in).
Polski: Bioluminescencyjna larwa chrząszcza z nadrodziny sprężyków poruszająca się po liściu bananowca. Larwa ma około 20 mm długości. |
Date | |
Source | Own work |
Author | Basile Morin |
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[edit]This file was selected as the media of the day for 27 February 2020. It was captioned as follows:
English: Video of a bioluminescent beetle Elateroidea (Lampyridae Ototretinae Stenocladius or Rhagophthalmidae), here moving on a banana leaf. This specimen measures about 20 mm (0.79 in).
Other languages
Čeština: Bioluminiscentní larva brouka z čeledi světluškovití leze po bánánovém listu. Larva je dlouhá přibližně 20 mm. English: Video of a bioluminescent beetle Elateroidea (Lampyridae Ototretinae Stenocladius or Rhagophthalmidae), here moving on a banana leaf. This specimen measures about 20 mm (0.79 in). Français : Vidéo d'un coléoptère bioluminescent Elateroidea (Lampyridae Ototretinae Stenocladius ou Rhagophthalmidae), ici en mouvement sur une feuille de bananier. Le specimen mesure environ 20 mm (0.79 in). Эрзянь: Биолюминесцентной шунжа Elateroidea (Lampyridae Ototretinae Stenocladius эли Rhagophthalmidae), тесэ моли бананонь лопава. Онкстави 20 mm (0.79 in). Polski: Bioluminescencyjna larwa chrząszcza z nadrodziny sprężyków poruszająca się po liściu bananowca. Larwa ma około 20 mm długości.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:49, 28 August 2019 | 55 s, 1,920 × 1,080 (32.28 MB) | Basile Morin (talk | contribs) | Light corrected | |
04:25, 28 August 2019 | 55 s, 1,920 × 1,080 (32.46 MB) | Basile Morin (talk | contribs) | User created page with UploadWizard |
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- User talk:Basile Morin/Archive 6 (Aug-Dec 2019)
- User talk:Basile Morin/Archive 7 (2020)
- User talk:Tomer T/Archive 4
- Commons:Featured media/Animals
- Commons:Featured media/chronological/December 2019
- Commons:Featured media candidates/File:Bioluminescent beetle Elateroidea (video).webm
- Commons:Featured video candidates/Log/December 2019
- File:Bioluminescent Rhagophthalmidae (video).webm (file redirect)
- File:Bioluminescent beetle Elateroidea - animated.gif
- File:Close-up view of a beetle Elateroidea.jpg
- File:Close-up view of a bioluminescent beetle Elateroidea.jpg
- File:Side view of a bioluminescent beetle Elateroidea.jpg
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- Category:Bioluminescence
- Category:Rhagophthalmidae
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25 August 2019
video/webm
69e55c39ab4f061fb548d98f32d65fa0ac67b42d
33,846,041 byte
55.043 second
1,080 pixel
1,920 pixel
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