Data for: "Horseshoe bats foraging in the wild adjust sensing to separate prey echoes from background clutter"

Background:
How animals handle immense incoming sensory information and regulate sensing is difficult to study under natural conditions. Using miniature GPS tags with microphone we monitored the sensing of freely foraging Greater horseshoe-bats.
Hypothesis:
We hypothesized that horseshoe bats adapt their sensory acquisition for prey detection and clutter-noise rejection.
Findings:
We found that the bats adjusted their call frequency to maintain the highest-frequency echoes from background in a forward-directed, spatially limited sector at a constant maximal frequency. This Doppler-Shift-Compensation strategy guaranteed that echoes of insects flying in front of the bats were received at the sensitive center of their auditory fovea while masking background echoes were received at lower frequencies.
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Data uploaded:
Data by fig.xslx
Data_description.docx
Data_for_paper.mat