On Insect flight-2
|[Note Guidelines] Photographer's Note|
|Trying out methods for photography of insects in flight:|
I’m sorry, the pictured Four-spotted Chaser (Libellula quadrimaculata) is not flying, just preparing to. Dragonflies move all four stiff-elastic wings independently of each other, not just up and down but also with regard to the angles of incidence. In hoverflight the forewings are striking down in synchrony while the hindwings are striking up. Then the movements are reversed. From the viewpoint of cost of transport (i.e. calories used per gram body weight per km), insect flight is not efficient. Steve Jobs knew that (a bicycling man is much more …). But evolution is also about costs of searching for food, costs of sexual selection, about body size and and ...
This flight technique has evolved in Early Permian, 290 Million years ago and has not changed if morphology is an indicator. A dragonfly chasing a prey or an intruder - breathtaking. This type of flying has persisted through the breakup of the Pangaea superccontinent into smaller continents and through two worldwide mass extinction events.
Technical stuff: it was necessary to use a flash and choose a uniform background. I used a tele lens, a short shutter speed, manual focussing and a TTL flash. In order to focus on flying insects it helps when the animals are choosing the same resting place over and over or if they are hovering . But that is trivial …
V. A. Tucker, 1973. Energetic Costs of Locomotion in Animals. In: Readings in Animal Energetics (R. Catlett, ed.). Ardent Media, London
S.S. Wilson, 1973. Bicycle Technology. Scientific American 228, 3
R.J. Bomphrey et al. 2016. Flight of the dragonflies and damselflies. Phil. Trans. Roy. Soc. B 371: 20150389
rbassin has marked this note useful
Only registered TrekNature members may rate photo notes.
|You must be logged in to start a discussion.|
Voici une superbe photo de libellule, bielle qualité des détails, couleurs et netteté
- [2018-07-15 1:11]
Hi Dietrich,not in fly but still a fantastic capture,what a macro and what a colors and details, a very bright capture of this common dragonfly,i like it! Have a nice Sunday and thanks,Luciano
hallo Dietrich v
very nice details with good sharpness and lovely colours
thanks gr lou
- Mozwik (72)
- [2018-07-16 14:47]
Amazing sharpness and detail, nice shot.