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File:Biomechanics-of-the-Peacocks-Display-How-Feather-Structure-and-Resonance-Influence-Multimodal-pone.0152759.s005.ogv

Biomechanics-of-the-Peacocks-Display-How-Feather-Structure-and-Resonance-Influence-Multimodal-pone.0152759.s005.ogv ‎(Ogg multiplexed audio/video file, Theora/Vorbis, length 21 s, 640 × 480 pixels, 1.26 Mbps overall, file size: 3.12 MB)

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English: Real-time and high-speed video of a peacock eyespot feather vibrated by a mechanical shaker. https://www.youtube.com/watch?v=yTfk5Izepfo When peacock eyespot feathers are vibrated at 25.6 Hz using a mechanical shaker, the eyespot remains relatively stationary compared to the rapidly moving and flickering loose green barbs. This motion mimics what is observed during natural courtship displays. The 25.6 Hz frequency used in this example is the average frequency of peacock train-rattling displays.
Date
Source S4 Movie from Dakin R, McCrossan O, Hare J, Montgomerie R, Amador Kane S (2016). "Biomechanics of the Peacock’s Display: How Feather Structure and Resonance Influence Multimodal Signaling". PLOS ONE. DOI:10.1371/journal.pone.0152759. PMID 27119380. PMC: 4847759.
Author Dakin R, McCrossan O, Hare J, Montgomerie R, Amador Kane S
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This file is licensed under the Creative Commons Attribution 4.0 International license.
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This file was transferred to Wikimedia Commons from PubMed Central by way of the Open Access Media Importer.
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Date/TimeThumbnailDimensionsUserComment
current06:30, 13 October 201621 s, 640 × 480 (3.12 MB)Open Access Media Importer Bot (talk | contribs)Automatically uploaded media file from Open Access source. Please report problems or suggestions here.

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Format Bitrate Download Status Encode time
VP9 480P 612 kbps Completed 17:48, 19 August 2018 21 s
Streaming 480p (VP9) 609 kbps Completed 05:57, 12 January 2024 1.0 s
VP9 360P 374 kbps Completed 17:48, 19 August 2018 18 s
Streaming 360p (VP9) 371 kbps Completed 21:16, 16 January 2024 1.0 s
VP9 240P 234 kbps Completed 17:47, 19 August 2018 15 s
Streaming 240p (VP9) 231 kbps Completed 00:19, 16 December 2023 1.0 s
WebM 360P 458 kbps Completed 06:31, 13 October 2016 21 s
Streaming 144p (MJPEG) 985 kbps Completed 02:16, 1 November 2023 2.0 s
Stereo (Opus) 2 kbps Completed 03:38, 16 November 2023 1.0 s
Stereo (MP3) 128 kbps Completed 09:47, 30 October 2023 1.0 s

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