Movie 5
Thermotaxis of groups of stage 1 and stage 3 larvae
(A) Showing stage 1 larvae moving in a 55 mm × 55 mm arena as described for Movie 4. Larval behaviour is observed within a linear 0.08 °C/mm heat gradient between 33 °C and 29 °C for 7 min (5-fold time-lapse). Larvae are placed at about 33 °C. Tracks are blended in after 23 s.
(B) Likewise showing stage 3 larvae moving in a 225 mm × 225 mm arena as described for Movie 5. Larval behaviour is observed within a linear 0.08 °C/mm heat gradient between 33 °C and 18 °C for 5 min (5-fold time-lapse). Larvae are placed at about 33°C. Tracks are blended in after 15 s.
The Ol1mpiad: concordance of behavioural faculties of stage 1 and stage 3 Drosophila larvae
Journal of Experimental Biology 2017. 220:2452-2475; doi: 10.1242/jeb.156646