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Keywords: cockatiel
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Journal Articles
J Exp Biol (2004) 207 (22): 3969–3976.
Published: 15 October 2004
...C. Hambly; E. J. Harper; J. R. Speakman SUMMARY The effect of experimentally increased wing loading on the energy cost of flight was examined in cockatiels Nyphicus hollandicus . Five individuals were flown for periods of approximately 2 min, while carrying additional payload mass amounting...
Journal Articles
J Exp Biol (2004) 207 (10): 1689–1702.
Published: 15 April 2004
...Tyson L. Hedrick; James R. Usherwood; Andrew A. Biewener SUMMARY We used a combination of high-speed 3-D kinematics and three-axis accelerometer recordings obtained from cockatiels flying in a low-turbulence wind tunnel to characterize the instantaneous accelerations and, by extension,the net...
Journal Articles
J Exp Biol (2003) 206 (8): 1363–1378.
Published: 15 April 2003
... the mechanisms employed by cockatiels ( Nymphicus hollandicus ) to modulate muscle power output. We found that pectoralis contractile function in cockatiels was generally conserved across speed and over a wide range of aerodynamic power requirements. Despite the 2-fold range of variation in muscle power output...
Journal Articles
J Exp Biol (2002) 205 (10): 1389–1409.
Published: 15 May 2002
... ) and transitions between gaits in cockatiels ( Nymphicus hollandicus ) and ringed turtle-doves ( Streptopelia risoria )trained to fly in a recently built, variable-speed wind tunnel. Gait use was investigated via a combination of three-dimensional kinematics and quasi-steady aerodynamic modeling of bound...
Journal Articles
J Exp Biol (2002) 205 (1): 25–35.
Published: 1 January 2002
... aperture control and thus in gating airflow. In parrots (cockatiels, Nymphicus hollandicus ), direct observations show that even during quiet respiration the lateral tympaniform membranes (LTMs) are partially adducted into the tracheal lumen to form a narrow slot. Contraction of the superficial intrinsic...