scholarly journals Wing damage no obstacle for hummingbird hawkmoths

2021 ◽  
Vol 224 (4) ◽  
Author(s):  
Kathryn Knight
Keyword(s):  
Wing Damage

TEMPORAL VARIATION IN BAT WING DAMAGE IN THE ABSENCE OF WHITE-NOSE SYNDROME

2013 ◽  
Vol 49 (4) ◽  
pp. 946-954 ◽  
Author(s):  
Lisa E. Powers ◽  
Joyce E. Hofmann ◽  
Jean Mengelkoch ◽  
B. Magnus Francis
Keyword(s):  
Temporal Variation ◽  
White Nose Syndrome ◽  
Wing Damage ◽  
Bat Wing

Little Brown Myotis Persist Despite Exposure to White-Nose Syndrome

2011 ◽  
Vol 2 (2) ◽  
pp. 190-195 ◽  
Author(s):  
Christopher A. Dobony ◽  
Alan C. Hicks ◽  
Kate E. Langwig ◽  
Ryan I. von Linden ◽  
Joseph C. Okoniewski ◽  
...  
Keyword(s):  
New York ◽  
Myotis Lucifugus ◽  
White Nose Syndrome ◽  
Military Installation ◽  
Myotis Myotis ◽  
Fort Drum ◽  
Wing Damage

Abstract We monitored a maternity colony of little brown myotis Myotis lucifugus on Fort Drum Military Installation in northern New York in 2009 and 2010 for impacts associated with white-nose syndrome. Declines in colony numbers presumed to be caused by white-nose syndrome were initially discovered in the spring 2009. Although colony numbers have continued to decline, we determined that a minimum of 12 individual banded female little brown myotis survived over multiple years despite exposure to white-nose syndrome. Our results also provide evidence that 14 of 20 recaptured female little brown myotis were able to heal from wing damage and infection associated with white-nose syndrome within a given year, and seven of eight recaptures from within both 2009 and 2010 showed evidence of reproduction.

scholarly journals Flies compensate for unilateral wing damage through modular adjustments of wing and body kinematics

2017 ◽  
Vol 7 (1) ◽  
pp. 20160103 ◽  
Author(s):  
Florian T. Muijres ◽  
Nicole A. Iwasaki ◽  
Michael J. Elzinga ◽  
Johan M. Melis ◽  
Michael H. Dickinson
Keyword(s):  
High Speed ◽  
Lateral Force ◽  
Wingbeat Frequency ◽  
Wing Motion ◽  
Roll Torque ◽  
Weight Support ◽  
Asymmetrical Pattern ◽  
Body Roll ◽  
Vertical Lift ◽  
Wing Damage

Using high-speed videography, we investigated how fruit flies compensate for unilateral wing damage, in which loss of area on one wing compromises both weight support and roll torque equilibrium. Our results show that flies control for unilateral damage by rolling their body towards the damaged wing and by adjusting the kinematics of both the intact and damaged wings. To compensate for the reduction in vertical lift force due to damage, flies elevate wingbeat frequency. Because this rise in frequency increases the flapping velocity of both wings, it has the undesired consequence of further increasing roll torque. To compensate for this effect, flies increase the stroke amplitude and advance the timing of pronation and supination of the damaged wing, while making the opposite adjustments on the intact wing. The resulting increase in force on the damaged wing and decrease in force on the intact wing function to maintain zero net roll torque. However, the bilaterally asymmetrical pattern of wing motion generates a finite lateral force, which flies balance by maintaining a constant body roll angle. Based on these results and additional experiments using a dynamically scaled robotic fly, we propose a simple bioinspired control algorithm for asymmetric wing damage.

scholarly journals Asymmetry costs: effects of wing damage on hovering flight performance in the hawkmothManduca sexta

2017 ◽  
Vol 220 (20) ◽  
pp. 3649-3656 ◽  
Author(s):  
María José Fernández ◽  
Marion E. Driver ◽  
Tyson L. Hedrick
Keyword(s):  
Flight Performance ◽  
Hovering Flight ◽  
Wing Damage

Free-Ranging Little Brown Myotis (Myotis lucifugus) Heal from Wing Damage Associated with White-Nose Syndrome

EcoHealth ◽  
2011 ◽  
Vol 8 (2) ◽  
pp. 154-162 ◽  
Author(s):  
Nathan W. Fuller ◽  
Jonathan D. Reichard ◽  
Morgan L. Nabhan ◽  
Spenser R. Fellows ◽  
Lesley C. Pepin ◽  
...  
Keyword(s):  
Myotis Lucifugus ◽  
White Nose Syndrome ◽  
Myotis Myotis ◽  
Wing Damage ◽  
Free Ranging

scholarly journals Wing damage affects flight kinematics but not flower tracking performance in hummingbird hawkmoths

2020 ◽  
Author(s):  
Klara Kihlström ◽  
Brett Aiello ◽  
Eric J. Warrant ◽  
Simon Sponberg ◽  
Anna Stöckl
Keyword(s):  
Lift Force ◽  
Beat Frequency ◽  
Force Production ◽  
Insect Species ◽  
Flight Performance ◽  
Wing Beat ◽  
Wing Beat Frequency ◽  
High Acceleration ◽  
Wing Damage ◽  
The Many

The integrity of their wings is crucial to the many insect species that spend distinct portions of their life in flight. How insects cope with the consequences of wing damage is therefore a central question when studying how robust flight performance is possible with such fragile chitinous wings. It has been shown in a variety of insect species that the loss in lift-force production resulting from wing damage is generally compensated by an increase in wing beat frequency rather than amplitude. The consequences of wing damage for flight performance, however, are less well understood, and vary considerably between species and behavioural tasks. One hypothesis reconciling the varying results is that wing damage might affect fast flight manoeuvres with high acceleration, but not slower ones. To test this hypothesis, we investigated the effect of wing damage on the manoeuvrability of hummingbird hawkmoths (Macroglossum stellatarum) tracking a motorised flower. This assay allowed us to sample a range of movements at different temporal frequencies, and thus assess whether wing damage affected faster or slower flight manoeuvres. We show that hummingbird hawkmoths compensate for the loss in lift force mainly by increasing wing beat amplitude, yet with a significant contribution of wing beat frequency. We did not observe any effects of wing damage on flight manoeuvrability at either high or low temporal frequencies.

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