Department of Biology

Aarhus University Seal / Aarhus Universitets segl

Jamie Donald John Macaulay

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

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

DOI

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
JournalScience Advances
Volume7
Issue10
Number of pages9
ISSN2375-2548
DOIs
Publication statusPublished - Mar 2021

Bibliographical note

Publisher Copyright:
Copyright © 2021 The Authors, some rights reserved;

See relations at Aarhus University Citationformats

ID: 220401072