Response of tagged long-finned pilot whales to KW and CTRL playbacks.

<p>(A) Reaction scores for KW playbacks (N = 5 whales tested twice, n = 10 trials) and CTRL playbacks (N = 3 whales tested twice, n = 6 trials). Positive values: attraction towards the sound source; negative values: avoidance. Dashed lines link the reaction scores of the same subject. (B) Change of group size during KW and CTRL playbacks (for each stimulus type: N = 3 individuals tested twice, n = 6 trials). Positive values: whales aggregating around tagged animal; negative values: whales spreading. Error bars give mean ± SEM.</p

Reaction scores for the 10 KW playback trials (magenta) and the 6 CTRL playback trials (grey) versus the distance between tagged whale and sound source at start of playback.

<p>The 6 different signs represent the 6 tagged whales (▵◊□○X+).</p

Track of tagged whale gm10_158d.

<p>Each dot corresponds to 1 sighting. Orange: baseline period. Black: control playback (CTRL) period. Magenta: killer whale playback (KW) period. Triangles: position of the sound source, at start and end of playbacks. Dotted lines: projected course of the whale as if the animal had kept its initial direction of horizontal movement.</p

Time series of behavior states during baseline and controlled exposure experiments from 12 DTAG records

Data set used to model effects of sonar and killer whale sound playbacks on sperm whale state-switching, probability of buzzing and locomotion effort in 1-min time steps. Each row represents 1-min time steps. Columns give the identifier for each tagged whale (tagid), seconds since tag-on (sfromtot), depth at the start of the 1-min bin (depth), estimated behavior state (state; 1-surface, 2-descent, 3-layer restricted search, 4-ascent, 5-drifting, 6-active non-foraging), probability of the state (state_prob), presence/absence of terminal echolocation buzz (buzz), locomotion effort measured by overall dynamic body acceleration (ODBA), and experimental phase (experiment). The remaining columns show candidate exposure covariates, as described in Table 2 of the manuscript