Tai_var

Features of vocal responses from Ta

Tiwai_var

Features of vocal responses from Tiwa

Key behaviours produced by focal animals during the different phases of a travel event (see video S1).

<p>Key behaviours produced by focal animals during the different phases of a travel event (see video S1).</p

Average order of appearance of the five key behaviours during the initiation phase.

<p>Average order of appearance of the five key behaviours during the initiation phase.</p

Mean plot showing the sequential order of behaviours observed during travel events that included at least one ‘travel hoo’.

<p>‘Initial gazing’ and ‘hooing’ (p=0.975), and ‘waiting’ and ‘checking’ (p=0.971), were not significantly different from each other, but differed from ‘initial moving’ (p=0.002, p=0.015, p<0.001 and p<0.001, respectively, Tukey HSD pairwise comparisons).</p

Comparison of time spent scanning in different directions following the playbacks of ‘pyows’ presented alone, or preceded by contextual information.

<p>Medians (and IQ range) for N = 6 subjects and the results of Friedman's analyses of variance. H = ‘hacks’, P = ‘pyows’, T = falling tree, E = eagle shrieks.</p

Travel events and context of ‘travel hoos’ recorded from focal individuals between January 2009 and September 2010.

<p>Travel events and context of ‘travel hoos’ recorded from focal individuals between January 2009 and September 2010.</p

Comparison of time spent scanning in different directions following the playbacks of ‘hacks’ presented alone, or preceded by contextual information.

<p>Medians (and IQ range) for N = 6 subjects and the results of Friedman's analyses of variance. H = ‘hacks’, P = ‘pyows’, T = falling tree, E = eagle shrieks.</p

Friedman's analysis of variance comparing the median time spent looking upwards, and toward the source of stimuli, following playbacks of male calls alone and contextual stimuli alone.

<p>Friedman's analysis of variance comparing the median time spent looking upwards, and toward the source of stimuli, following playbacks of male calls alone and contextual stimuli alone.</p

Profile plot showing the successes of focal individuals in recruiting other individuals as a function of the presence of ‘hooing’ and ‘waiting’.

<p>The production of ‘hoos’ had a significantly positive effect on recruitment (GLMM, t=4.857, p<0.001), while the presence of ‘waiting’ had a significantly negative effect (GLMM, t=-2.457, p=0.015). </p