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. 2015 May 22;282(1807):20150265. doi: 10.1098/rspb.2015.0265

Figure 1.

Figure 1.

Median and inter-quartile range in the four experimental conditions natural ‘Krak’ (K, N = 11), artificial ‘Krak’ (K( ), N = 9), natural ‘Krak-oo’ (K+, N = 12) and artificial ‘Krak-oo’ (K(+), N = 10) for each variable studied. (a–e) The number of calls given, respectively, by the male (a) and by the group with (b) ‘Alk’ alarm call units, given alone and combined with an R unit, (c) ‘W’ alarm call units, given alone and combined with an R unit, (d) number of ‘RA’ alert calls given (combination of ‘R’ and ‘A’ call units) and (e) sum of three positive social call units and combinations between them (i.e. H, L, A call units and HA and LA calls). Plots (f) and (g) show the duration of alarm, respectively, for the male (f) and the group (g). Finally, (h) and (i) show latency to give first call, respectively, for the male (h) and the group (i).