File:The-Predatory-Ecology-of-Deinonychus-and-the-Origin-of-Flapping-in-Birds-pone.0028964.s002.ogv
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The-Predatory-Ecology-of-Deinonychus-and-the-Origin-of-Flapping-in-Birds-pone.0028964.s002.ogv (Ogg Theora video file, length 59 s, 320 × 240 pixels, 596 kbps, file size: 4.22 MB)
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[edit]DescriptionThe-Predatory-Ecology-of-Deinonychus-and-the-Origin-of-Flapping-in-Birds-pone.0028964.s002.ogv |
English: Stability flapping in a wild Eurasian Sparrowhawk ( Accipiter nisus ). The vigorous flapping of this sparrowhawk is not an attempt to fly away with its prey. Rather, this is “stability flapping”: employed only to get on top of the prey and maintain this position so that the raptor can use its bodyweight to pin down its victim. With the feet employed in preventing escape, the forelimbs must now be used to maintain an advantageous position: the opposite to what is seen in basal theropods where the forelimbs presumably had a greater role in subduing prey, with the feet used for positioning. Filmed 12 th March 1998, Nacton, Suffolk, UK.
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Source | Video S1 from Fowler D, Freedman E, Scannella J, Kambic R. "The Predatory Ecology of Deinonychus and the Origin of Flapping in Birds". PLOS ONE. DOI:10.1371/journal.pone.0028964. PMID 22194962. PMC: 3237572. | ||
Author | Fowler D, Freedman E, Scannella J, Kambic R | ||
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This file is licensed under the Creative Commons Attribution 3.0 Unported license.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:44, 24 September 2012 | 59 s, 320 × 240 (4.22 MB) | Open Access Media Importer Bot (talk | contribs) | Uploaded with the Open Access Media Importer. (test edit) botrequest |
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Short title | Video S1 |
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Author | Fowler D, Freedman E, Scannella J, Kambic R |
Usage terms | http://creativecommons.org/licenses/by/3.0/ |
Image title | Stability flapping in a wild Eurasian Sparrowhawk ( Accipiter nisus ). The vigorous flapping of this sparrowhawk is not an attempt to fly away with its prey. Rather, this is ?stability flapping?: employed only to get on top of the prey and maintain this position so that the raptor can use its bodyweight to pin down its victim. With the feet employed in preventing escape, the forelimbs must now be used to maintain an advantageous position: the opposite to what is seen in basal theropods where the forelimbs presumably had a greater role in subduing prey, with the feet used for positioning. Filmed 12 th March 1998, Nacton, Suffolk, UK. (AVI) |
Software used | Xiph.Org libtheora 1.1 20090822 (Thusnelda) |
Date and time of digitizing | 2011-12-14 |