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. Author manuscript; available in PMC: 2008 Apr 4.
Published in final edited form as: Behav Ecol. 2007;18:849–859. doi: 10.1093/beheco/arm054

Figure 1.

Figure 1

Significant effects associated with matching rate during playback; all graphs show leverage residuals for x and y axes. (A) Matching rate as a function of latency to first approach, showing higher matching associated with more rapid approach. (B) Matching rate as a function of closest approach to the speaker, showing higher matching associated with closer approach. (C) Matching rate as a function of song length. (D) Matching rate as a function of male age, showing increased matching for older males.