Cultural evolution trees

Song type life span

Phylograms

## [1] "BR1"

## [1] "BR2"

## [1] "CCE"

## [1] "CCL"

## [1] "HC1"

## [1] "HC2"

## [1] "SUR"

Phylomorphospace

Overlapped phylomorphospace

Phenograms

## [1] "HC1"

## [1] "CCE"

## [1] "CCL"

## [1] "SUR"

Acoustic space

Saturation of the acoustic space