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Title data
Sigl, Robert ; Steibl, Sebastian ; Laforsch, Christian:
The role of vision for navigation in the crown-of-thorns seastar, Acanthaster planci.
In: Scientific Reports.
Vol. 6
(August 2016)
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- No. 30834.
ISSN 2045-2322
DOI der Verlagsversion: https://doi.org/10.1038/srep30834
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Abstract
Coral reefs all over the Indo-Pacific suffer from substantial damage caused by the crown-of-thorns seastar Acanthaster planci, a voracious predator that moves on and between reefs to seek out its coral prey. Chemoreception is thought to guide A. planci. As vision was recently introduced as another sense involved in seastar navigation, we investigated the potential role of vision for navigation in A. planci. We estimated the spatial resolution and visual field of the compound eye using histological sections and morphometric measurements. Field experiments in a semi-controlled environment revealed that vision in A. planci aids in finding reef structures at a distance of at least 5 m, whereas chemoreception seems to be effective only at very short distances. Hence, vision outweighs chemoreception at intermediate distances. A. planci might use vision to navigate between reef structures and to locate coral prey, therefore improving foraging efficiency, especially when multidirectional currents and omnipresent chemical cues on the reef hamper chemoreception.
Further data
| Item Type: | Article in a journal |
|---|---|
| Additional notes (visible to public): | BAYCEER137280 |
| Keywords: | Animal behaviour; Animal physiology; Behavioural ecology |
| DDC Subjects: | 500 Science |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology I Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology I > Chair Animal Ecology I - Univ.-Prof. Dr. Christian Laforsch Research Institutions Research Institutions > Central research institutes Research Institutions > Central research institutes > Bayreuth Center of Ecology and Environmental Research- BayCEER Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology |
| Language: | English |
| Originates at UBT: | Yes |
| Date Deposited: | 12 Jan 2018 10:47 |
| Last Modified: | 21 Nov 2023 13:42 |
| URI: | https://epub.uni-bayreuth.de/id/eprint/3650 |
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