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| Content Provider | Directory of Open Access Journals (DOAJ) |
|---|---|
| Author | Heather Vance Peter T. Madsen Natacha Aguilar de Soto Danuta Maria Wisniewska Michael Ladegaard Sascha Hooker Mark Johnson |
| Abstract | Visual predators rely on fast-acting optokinetic responses to track and capture agile prey. Most toothed whales, however, rely on echolocation for hunting and have converged on biosonar clicking rates reaching 500/s during prey pursuits. If echoes are processed on a click-by-click basis, as assumed, neural responses 100× faster than those in vision are required to keep pace with this information flow. Using high-resolution biologging of wild predator-prey interactions, we show that toothed whales adjust clicking rates to track prey movement within 50–200 ms of prey escape responses. Hypothesising that these stereotyped biosonar adjustments are elicited by sudden prey accelerations, we measured echo-kinetic responses from trained harbour porpoises to a moving target and found similar latencies. High biosonar sampling rates are, therefore, not supported by extreme speeds of neural processing and muscular responses. Instead, the neurokinetic response times in echolocation are similar to those of tracking responses in vision, suggesting a common neural underpinning. |
| e-ISSN | 2050084X |
| DOI | 10.7554/eLife.68825 |
| Journal | eLife |
| Volume Number | 10 |
| Language | English |
| Publisher | eLife Sciences Publications Ltd |
| Publisher Date | 2021-01-01 |
| Publisher Place | United Kingdom |
| Access Restriction | Open |
| Subject Keyword | Medicine Science Biology (general) Echolocation Biosonar Harbour Porpoise Blainville's Beaked Whale Predator-prey Interactions Response Latency |
| Content Type | Text |
| Resource Type | Article |
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