Skull morphological adaptations to acoustic emissions: peak frequency in bats

Chiropteran species developed different sound emission systems (i.e. oral or nasal) implying divergent skull morphological adaptations. Species combining multiple sensory strategies to locate their food might present a weaker selection pressure on their skulls due to echolocation compared to species that use echolocation as main sensory system. Consequently, we predicted that skull shape of non-insectivorous bats should not present associations between skull morphology and peak frequency. We tested for the relationship between skull morphology (size and shape, derived from 3D geometric morphometrics) and peak frequency (FP) in a macroevolutionary dataset including ~65% of extant bat genera. Phylogenetic comparative methods were employed to assess skull morphological variation associated to FP. Unexpectedly, we found that also frugivorous nasal emitters presented significant skull shape (but not size) adaptations to the frequency emitted. In both insectivorous and frugivorous species, hi..., , # Skull morphological adaptations to acoustic emissions: peak frequency in bats

Dataset DOI: [10.5061/dryad.c59zw3rnt](10.5061/dryad.c59zw3rnt)

## Description of the data and file structure

Dataset showing skull morphological adaptations to acoustic emissions in 219 species of bats. 

**Covariates.csv** = Ecological and bioacoustics parameters for 219 species of bats.

\"Mass\" = Average species body mass in grams

\"Emission type\" = broadband / FM–multiharmonic types (M), resonant or CF‑dominant call types (R)

\"Call category\" = constant frequency (h), long, broadband, multiharmonic (g), short, broadband, multiharmonic (f), short, broadband, dominated by fundamental harmonic (e), narrowband, multiharmonic (d), narrowband, dominated by fundamental harmonic (c)

\"StartF\" = Start Frequency (KHz)

\"EndF\" = End Frequency (KHz)

\"BW\" = Band Width (KHz)

\"Fpeak\" = Frequency Peak (KHz)

\"Duration\" = Frequency duration (ms)

\"Sweep rate\" = Sweep rate (KHz/ms)

\"Diet\" = insectivorous (I),..., ,