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Keywords: wingbeat frequencyClose
J Exp Biol (2019) 222 (1): jeb187807.
Published: 04 January 2019
..., wingbeat frequency, and flight and resting metabolic rates of workers could predict the trait values of queens that were more than fourfold larger. Flight success of queens decreased over time in part because of a large increase in body mass and a decrease in traits linked with flight, namely wingbeat...
J Exp Biol (2017) 220 (16): 2908–2915.
Published: 15 August 2017
..., their median peak-to-peak dorsal body (DB) acceleration and median DB amplitude also increased. This, in turn, led to higher airspeeds, suggesting that birds fly slower when traversing unfamiliar terrain. By contrast, after route efficiency stabilised, birds exhibited increasing wingbeat frequencies, which did...
Includes: Supplementary data
J Exp Biol (2014) 217 (4): 536–544.
Published: 15 February 2014
...Charles-A. Darveau; Fannie Billardon; Kasandra Bélanger The evolution of flight energetics requires that phenotypes be variable, repeatable and heritable. We studied intraspecific variation in flight energetics in order to assess the repeatability of flight metabolic rate and wingbeat frequency...
J Exp Biol (2012) 215 (18): 3317–3323.
Published: 15 September 2012
... mean maximum lift was not significantly different from that required to support body mass (95±8%), mean wingbeat frequency was 23.7±0.6 Hz, and mean stroke amplitude was 105±5 deg in the forewing and 96±5 deg in the hindwing – all of which are close to free-flight values. Instead, the low cost...
Douglas L. Altshuler, Kenneth C. Welch, Jr, Brian H. Cho, Danny B. Welch, Amy F. Lin, William B. Dickson, Michael H. Dickinson
J Exp Biol (2010) 213 (14): 2507–2514.
Published: 15 July 2010
...Douglas L. Altshuler; Kenneth C. Welch, Jr; Brian H. Cho; Danny B. Welch; Amy F. Lin; William B. Dickson; Michael H. Dickinson SUMMARY Hummingbirds can maintain the highest wingbeat frequencies of any flying vertebrate – a feat accomplished by the large pectoral muscles that power the wing strokes...
Includes: Supplementary data
J Exp Biol (2009) 212 (22): 3633–3642.
Published: 15 November 2009
... to flight mechanical theory, wingbeat frequency and air speed should increase with decreasing air density, i.e. increasing flight altitude. Although wind tunnel experiments have shed light on many aspects of avian flight, the effect of air density remained ambiguous, because air density could...
J Exp Biol (2005) 208 (18): 3581–3591.
Published: 15 September 2005
... to 1065 mg, was found to strongly affect hovering flight mass-specific metabolic rates, which ranged from 114 ml CO 2 h -1 g -1 in small species to 37 ml CO 2 h -1 g -1 in large species. Similar variation of wingbeat frequency in hovering flight occurred among small to large species, and ranged from 250...
J Exp Biol (2005) 208 (6): 1161–1173.
Published: 15 March 2005
... loss, wingbeat frequency, body segment temperatures and behavior of honeybees flying in transparent containment outdoors. For periods of voluntary, uninterrupted, self-sustaining flight, metabolic rate was independent of air temperature between 19 and 37°C. Thorax temperatures( T th ) were very stable...
J Exp Biol (2003) 206 (18): 3139–3147.
Published: 15 September 2003
... amplitude substantially and increased wingbeat frequency slightly. In the second experiment, we maintained constant air density but decreased oxygen partial pressure. Under these normodense but hypoxic conditions, hummingbirds did not alter stroke amplitude but instead reduced wingbeat frequency until...
J Exp Biol (2001) 204 (19): 3283–3294.
Published: 01 October 2001
...C. J. Pennycuick SUMMARY Sixteen species of birds passing Falsterbo in southwest Sweden during the autumn migration season were observed using short-range optical methods. Air speeds and wingbeat frequencies were measured, reduced to sea level, and compared with benchmark values computed...
J Exp Biol (1988) 135 (1): 9–23.
Published: 01 March 1988
..., 1.74-5.23x 10 −3 gcm −2 for whiteflies). Members of the two families are also separated in terms of wingbeat frequency (range 81.l-123.4Hz for aphids, 165.6-224.2 Hz for whiteflies). Since our animals were much smaller than any insects examined previously for these parameters, values were compared...
J Exp Biol (1986) 120 (1): 79–103.
Published: 01 January 1986
... loss heart rate respiratory rate wingbeat frequency endurance J. exp. Biol. 120, 79-103 (1986) 79 Printed in Great Britain © The Company of Biologists Limited 1986 FLIGHT PHYSIOLOGY OF INTERMEDIATE-SIZED FRUIT BATS (PTEROPODIDAE) BY ROGER E. CARPENTER Department of Biology, San Diego State...