Thoracic vibrations of Melipona seminigra during stationary flight, annoyance buzzing and forager signalling
| . | Thorax vibrations . | . | . | Kruskal–Wallis test . | . | . | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| . | Stationary flight . | Annoyance buzzing . | Forager vibrations . | H (d.f.=2) . | P . | N (FL/AB/FO) . | ||||
| Vibration parameters | ||||||||||
| MF (Hz) | 182 [175/186]a | 305 [283/330]b | 487 [454/499]c | 76.4 | <0.001 | 27/42/21 | ||||
| VAp-p (mm s–1) | 39 [35/47]a | 209 [134/261]b | 115 [69/167]c | 62.5 | <0.001 | 27/42/21 | ||||
| DAp-p (μm) | 20 [13/27]a | 50 [32/75]b | 18 [10/28]a | 40.0 | <0.001 | 27/42/21 | ||||
| Build-up and decay | ||||||||||
| VA build-up | 14 [14/17]a | 5 [4/7]b | 7 [4/9]b | 26.5 | <0.001 | 15/15/15 | ||||
| VA decay | 16 [13/21]a | 6 [4/7]b | 8 [7/10]b | 29.5 | <0.001 | 15/15/15 | ||||
| MF build-up | 1 [0/2] | 2 [1/2] | 2 [0/5] | 3.8 | 0.15 | 15/15/15 | ||||
| MF decay | 2 [0/5] | 4 [3/4] | 6 [3/6] | 5.7 | 0.06 | 15/15/15 | ||||
| . | Thorax vibrations . | . | . | Kruskal–Wallis test . | . | . | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| . | Stationary flight . | Annoyance buzzing . | Forager vibrations . | H (d.f.=2) . | P . | N (FL/AB/FO) . | ||||
| Vibration parameters | ||||||||||
| MF (Hz) | 182 [175/186]a | 305 [283/330]b | 487 [454/499]c | 76.4 | <0.001 | 27/42/21 | ||||
| VAp-p (mm s–1) | 39 [35/47]a | 209 [134/261]b | 115 [69/167]c | 62.5 | <0.001 | 27/42/21 | ||||
| DAp-p (μm) | 20 [13/27]a | 50 [32/75]b | 18 [10/28]a | 40.0 | <0.001 | 27/42/21 | ||||
| Build-up and decay | ||||||||||
| VA build-up | 14 [14/17]a | 5 [4/7]b | 7 [4/9]b | 26.5 | <0.001 | 15/15/15 | ||||
| VA decay | 16 [13/21]a | 6 [4/7]b | 8 [7/10]b | 29.5 | <0.001 | 15/15/15 | ||||
| MF build-up | 1 [0/2] | 2 [1/2] | 2 [0/5] | 3.8 | 0.15 | 15/15/15 | ||||
| MF decay | 2 [0/5] | 4 [3/4] | 6 [3/6] | 5.7 | 0.06 | 15/15/15 | ||||
FL, stationary flight; AB, annoyance buzzing; FO, forager signalling; MF, main frequency; VA, velocity amplitude; DA,displacement amplitude
Values are medians [1st quartiles/3rd quartiles]; N, number of individuals. The build-up and decay phase of the oscillations (VA,MF) were determined through counting the number of cycles between the onset of the vibrations and 95% of their maximum values, and from 95% until their cessation
The same superscript letters (a–c) in each row indicate those groups that were statistically not separated (Dunn's test for pairwise comparison: P>0.05)