Hunting bats adjust their echolocation to receive weak prey echoes for clutter reduction

Laura Stidsholt*, Stefan Greif, Holger R. Goerlitz, Kristian Beedholm, Jamie Macaulay, Mark Johnson, Peter Teglberg Madsen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


How animals extract information from their surroundings to guide motor patterns is central to their survival. Here, we use echo-recording tags to show how wild hunting bats adjust their sensory strategies to their prey and natural environment. When searching, bats maximize the chances of detecting small prey by using large sensory volumes. During prey pursuit, they trade spatial for temporal information by reducing sensory volumes while increasing update rate and redundancy of their sensory scenes. These adjustments lead to very weak prey echoes that bats protect from interference by segregating prey sensory streams from the background using a combination of fast-acting sensory and motor strategies. Counterintuitively, these weak sensory scenes allow bats to be efficient hunters close to background clutter broadening the niches available to hunt for insects.

Original languageEnglish
Article numbereabf1367
Number of pages9
JournalScience Advances
Issue number10
Publication statusPublished - 3 Mar 2021


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