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Figure 2

From: Male song of the Aquatic Warbler, a promiscuous bird without paternal care, is more complex than previously thought

Figure 2

Song phrase repertoires of the Aquatic Warbler males. (a) Enumerated phrase repertoire as a function of the number of phrases from the start of a recording. Because the number of song phrases recorded from each male varied, the sample size for the enumerated phrase repertoire was N = 40 for 10–20 phrases, N = 39 for 30–40 phrases, N = 37 for 50–100 phrases, and N = 23 for 200 phrases. The enumerated phrase repertoire based on all phrases recorded (range 25–648) for each bird was calculated for all the 40 males. (b) Average phrase repertoire size estimated with the Chao1 and ACE estimators, based on all the 40 males.

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