Fig. 2: Examples of the Mahalanobis distance (MD) scores for dive and movement behavior comprised from focal follow and tag data from four trials. | Communications Biology

Fig. 2: Examples of the Mahalanobis distance (MD) scores for dive and movement behavior comprised from focal follow and tag data from four trials.

From: Humpback whale masked hearing thresholds in noise measured with modified behavioral observation audiometry

Fig. 2

Each graph shows the Mahalanobis distance (MD) score from focal follow data (upper four) and tagged individual movement and dive behavior (lower four) from four trials (a 0.25 kHz stimulus exposure trial, which is outlined in Figs. 1, and 1, 4, and 16 kHz stimulus exposure trials). Blue and red horizontal dashed lines show the level at which a significant change in behavior was assumed, i.e., an MD score that exceeded the dashed line. Graphs also indicate the onset of the upsweeps (vertical green dashed lines).

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