Effect of Vegetation Structure on Bird Vocalizations
نویسندگان
چکیده
In preparing for my presentation, I was recommended several review articles from compilations on bird vocalizations. I based much of my presentation on this particular review. It is a bizarre combination of a little bit of ethology and a good many predictions on how environmental features should influence the evolution of characteristics of bird song such as frequency, amplitude, modulatory emphasis (frequency or amplitude), song speed, and repetition rate of consecutive notes of the same frequency (referred to as “trill-rate” in some articles). Many of the predictions are based on previous experimental acoustic work that did not directly involve birds.
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