Jumping mechanisms in adult caddis flies (Insecta, Trichoptera)

The Journal of Experimental Biology
M Burrows, Marina Dorosenko

Abstract

To understand the jumping mechanisms and strategies of adult caddis flies, leg morphology and movements were analysed in three species with mean masses of 3.9 to 38 mg. Two distinct jumping strategies were found. First (67% of 90 jumps), take-off was propelled solely by the middle and hind legs while the wings remained closed. Second (33% of jumps), the same leg movements were combined with wing movements before take-off. The hind legs were 70% and the middle legs were 50% longer than the front legs and represented 105% and 88%, respectively, of body length. Both hind and middle trochantera were depressed together, approximately 15 ms before take-off. The front legs apparently did not contribute to thrust in either strategy and were the first to be lifted from the ground. The hind legs were the next to lose contact, so that the middle legs alone provided the final thrust before take-off. Jumping performance did not differ significantly in the two jumping strategies or between species, in acceleration times (range of means for the three species 14.5-15.4 ms), take-off velocities (range 0.7-1 m s(-1)) and trajectory angles. A significant difference in jumps propelled only by the legs was the lower angle (9.3 ± 1.9 deg) of the bod...Continue Reading

References

Jan 1, 1993·Annual Review of Physiology·R K Josephson
Nov 23, 2006·The Journal of Experimental Biology·Malcolm Burrows
Jan 22, 2008·The Journal of Experimental Biology·Gwyneth Card, Michael Dickinson
Aug 18, 2009·The Journal of Experimental Biology·Malcolm Burrows
Jun 24, 2011·The Journal of Experimental Biology·Malcolm Burrows
Jan 10, 2012·Current Opinion in Neurobiology·Gwyneth M Card
Feb 23, 2013·The Journal of Experimental Biology·Malcolm Burrows
Jun 22, 2013·The Journal of Experimental Biology·Gaëlle BimbardRamiro Godoy-Diana
Nov 2, 2014·The Journal of Experimental Biology·Malcolm Burrows, Marina Dorosenko
Mar 11, 2015·Current Biology : CB·Malcolm BurrowsGregory P Sutton
Apr 18, 2015·The Journal of Experimental Biology·Malcolm Burrows, Marina Dorosenko

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Citations

Aug 23, 2017·The Journal of Experimental Biology·Malcolm Burrows, Marina Dorosenko
Feb 15, 2017·The Journal of Experimental Biology·M Burrows, M Dorosenko
Nov 18, 2018·The Journal of Experimental Biology·Malcolm BurrowsSanjay P Sane
May 10, 2018·Scientific Reports·Mostafa R A NabawyWilliam I Sellers
Aug 24, 2019·The Journal of Experimental Biology·M Burrows
Aug 11, 2019·Integrative and Comparative Biology·Gregory P SuttonSheila N Patek

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