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Keywords: Turning
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Journal Articles
J Exp Biol (2021) 224 (20): jeb243020.
Published: 25 October 2021
... their foreflippers to propel themselves forward without aid from the collapsed hindflippers, which are passively trailed. During maneuvers such as turning and leaping (porpoising), the hindflippers are spread into a delta-wing configuration. There is little information defining the role of otarrid hindflippers...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (6): jeb166041.
Published: 22 March 2018
...Frank E. Fish; Allison Kolpas; Andrew Crossett; Michael A. Dudas; Keith W. Moored; Hilary Bart-Smith ABSTRACT For aquatic animals, turning maneuvers represent a locomotor activity that may not be confined to a single coordinate plane, making analysis difficult, particularly in the field. To measure...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (5): 908–919.
Published: 01 March 2017
... attacks by the brief squid Lolliguncula brevis on both shrimp and fish. Squid attack success was high (>80%) and three behavioral phases were identified: (1) approach, (2) strike and (3) recoil. Lolliguncula brevis demonstrated greater maneuverability (i.e. a smaller length-specific turning radius...
Journal Articles
J Exp Biol (2016) 219 (5): 676–685.
Published: 01 March 2016
... temperature conditions and during turning. At ground temperatures ranging from 45 to 60°C, mites ran at a mean relative speed of 192.4±2.1 body lengths (BL) s −1 , exceeding the highest previously documented value for a land animal by 12.5%. Stride frequencies were also exceptionally high (up to 135 Hz...
Includes: Supplementary data
Journal Articles
J Exp Biol (2015) 218 (22): 3678–3688.
Published: 01 November 2015
... in wind tunnels with limited maneuvering, and without analysis of echolocation behavior. In this study, we engaged insectivorous big brown bats in a task requiring simultaneous turning and climbing flight, and used synchronized high-speed motion-tracking cameras and audio recordings to quantify...
Includes: Supplementary data
Journal Articles
J Exp Biol (2015) 218 (3): 480–490.
Published: 01 February 2015
... the underlying kinematics and resulting aerodynamic mechanisms of low speed turning flight in the pigeon ( Columba livia ). Three birds were trained to perform 90 deg level turns in a stereotypical fashion and detailed three-dimensional (3D) kinematics were recorded at high speeds. Applying the angular momentum...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (15): 2717–2725.
Published: 01 August 2014
... in the field. Specifically, we collected data on tandem flights, defined as two birds maneuvering together. These data permit us to evaluate several hypotheses on the high-speed maneuvering flight performance of birds. We found that high-speed turns are roll-based, but that the magnitude of the centripetal...
Includes: Supplementary data
Journal Articles
J Exp Biol (2008) 211 (21): 3359–3369.
Published: 01 November 2008
.... * Author for correspondence (e-mail: tytell@umd.edu ) 1 9 2008 © The Company of Biologists Limited 2008 2008 fluid dynamics escape response C-start turning maneuvering bluegill sunfish Lepomis macrochirus particle image velocimetry The escape response (also called a C...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2008) 211 (21): 3478–3489.
Published: 01 November 2008
... maneuvers. In the present study, we examined the kinematics of slow-speed turning flight in the lesser short-nosed fruit bat, Cynopterus brachyotis , to understand the basic mechanics employed to perform maneuvers and to compare them with previous findings in bats and other flying organisms. Four...
Includes: Supplementary data
Journal Articles
J Exp Biol (2007) 210 (17): 3117–3125.
Published: 01 September 2007
... to altered activity patterns typically involves superimposing exercise onto a normal locomotor repertoire, making a distinction between qualitative changes to locomotor repertoires and quantitative increases in activity level difficult. Here, we directly tested the hypothesis that an increase in turning...
Journal Articles
J Exp Biol (2007) 210 (6): 971–982.
Published: 15 March 2007
... and decouple these multiple constraints may provide a distinct advantage for turning performance. Subjects sprinted on circular tracks of 1, 2, 3, 4 and 6 m radii. All five tracks were drawn with paint on flat, clean, paved asphalt so that they were cotangential with a strategically placed force platform...
Journal Articles
J Exp Biol (2005) 208 (12): 2237–2252.
Published: 15 June 2005
... a behavioural transition do so at the same rate. The present study tests this assumption by analysing the sequence of kinematic events during turning of the stick insect Carausius morosus , and by measuring how the time courses of the changing parameters differ between legs. Turning was triggered reliably...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2003) 206 (4): 667–674.
Published: 15 February 2003
...Frank E. Fish; Jenifer Hurley; Daniel P. Costa SUMMARY Maneuverability is critical to the performance of fast-swimming marine mammals that use rapid turns to catch prey. Overhead video recordings were analyzed for two sea lions ( Zalophus californianus ) turning in the horizontal plane. Unpowered...