Habitat structure
## [1] "cross.correlation"

## [1] "snr.attenuation"

## [1] "excess.attenuation"

## [1] "envelope.correlation"

## [1] "blur.ratio"

## [1] "spectral.correlation"

## [1] "spectral.blur.ratio"

Frequency modulation and habitat structure
## [1] "cross.correlation"

## [1] "snr.attenuation"

## [1] "excess.attenuation"

## [1] "envelope.correlation"

## [1] "blur.ratio"

## [1] "spectral.correlation"

## [1] "spectral.blur.ratio"

Amplitude modulation and habitat structure
## [1] "cross.correlation"

## [1] "snr.attenuation"

## [1] "excess.attenuation"

## [1] "envelope.correlation"

## [1] "blur.ratio"

## [1] "spectral.correlation"

## [1] "spectral.blur.ratio"

Harmonicity and habitat structure
## [1] "cross.correlation"

## [1] "snr.attenuation"

## [1] "excess.attenuation"

## [1] "envelope.correlation"

## [1] "blur.ratio"

## [1] "spectral.correlation"

## [1] "spectral.blur.ratio"

Duration and habitat structure
## [1] "cross.correlation"

## [1] "snr.attenuation"

## [1] "excess.attenuation"

## [1] "envelope.correlation"

## [1] "blur.ratio"

## [1] "spectral.correlation"

## [1] "spectral.blur.ratio"

Temperature
## [1] "cross.correlation"

## [1] "snr.attenuation"

## [1] "excess.attenuation"

## [1] "envelope.correlation"

## [1] "blur.ratio"

## [1] "spectral.correlation"

## [1] "spectral.blur.ratio"
