Chemosensory behaviour of juvenile crown-of-thorns sea star (Acanthaster sp.), attraction to algal and coral food and avoidance of adult conspecifics.
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| Title: | Chemosensory behaviour of juvenile crown-of-thorns sea star (Acanthaster sp.), attraction to algal and coral food and avoidance of adult conspecifics. |
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| Authors: | Webb, M.1 (AUTHOR) monique.webb@sydney.edu.au, Clements, M.1 (AUTHOR) matthew.clements@sydney.edu.au, Selvakumaraswamy, P.1 (AUTHOR) paulina.selvakumaraswamy@sydney.edu.au, McLaren, E.1 (AUTHOR) emily.mclaren@sydney.edu.au, Byrne, M.1 (AUTHOR) maria.byrne@sydney.edu.au |
| Source: | Proceedings of the Royal Society B: Biological Sciences. 5/29/2024, Vol. 291 Issue 2023, p1-10. 10p. |
| Subjects: | Chemical ecology, Coral reefs & islands, Starfishes, Coralline algae, Semiochemicals, Corals |
| Abstract: | Intraspecific and habitat-mediated responses to chemical cues play key roles in structuring populations of marine species. We investigated the behaviour of herbivorous-stage juvenile crown-of-thorns sea stars (COTS; Acanthaster sp.) in flow-through choice chambers to determine if chemical cues from their habitat influence movement and their transition to become coral predators. Juveniles at the diet transition stage were exposed to cues from their nursery habitat (coral rubble-crustose coralline algae (CCA)), live coral and adult COTS to determine if waterborne cues influence movement. In response to CCA and coral as sole cues, juveniles moved towards the cue source and when these cues were presented in combination, they exhibited a preference for coral. Juveniles moved away from adult COTS cues. Exposure to food cues (coral, CCA) in the presence of adult cues resulted in variable responses. Our results suggest a feedback mechanism whereby juvenile behaviour is mediated by adult chemical cues. Cues from the adult population may deter juveniles from the switch to corallivory. As outbreaks wane, juveniles released from competition may serve as a proximate source of outbreaks, supporting the juveniles-in-waiting hypothesis. The accumulation of juveniles within the reef infrastructure is an underappreciated potential source of COTS outbreaks that devastate coral reefs. [ABSTRACT FROM AUTHOR] |
| Copyright of Proceedings of the Royal Society B: Biological Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 178680528 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Chemosensory behaviour of juvenile crown-of-thorns sea star (Acanthaster sp.), attraction to algal and coral food and avoidance of adult conspecifics. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Webb%2C+M%2E%22">Webb, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> monique.webb@sydney.edu.au</i><br /><searchLink fieldCode="AR" term="%22Clements%2C+M%2E%22">Clements, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> matthew.clements@sydney.edu.au</i><br /><searchLink fieldCode="AR" term="%22Selvakumaraswamy%2C+P%2E%22">Selvakumaraswamy, P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> paulina.selvakumaraswamy@sydney.edu.au</i><br /><searchLink fieldCode="AR" term="%22McLaren%2C+E%2E%22">McLaren, E.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> emily.mclaren@sydney.edu.au</i><br /><searchLink fieldCode="AR" term="%22Byrne%2C+M%2E%22">Byrne, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> maria.byrne@sydney.edu.au</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Proceedings+of+the+Royal+Society+B%3A+Biological+Sciences%22">Proceedings of the Royal Society B: Biological Sciences</searchLink>. 5/29/2024, Vol. 291 Issue 2023, p1-10. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Chemical+ecology%22">Chemical ecology</searchLink><br /><searchLink fieldCode="DE" term="%22Coral+reefs+%26+islands%22">Coral reefs & islands</searchLink><br /><searchLink fieldCode="DE" term="%22Starfishes%22">Starfishes</searchLink><br /><searchLink fieldCode="DE" term="%22Coralline+algae%22">Coralline algae</searchLink><br /><searchLink fieldCode="DE" term="%22Semiochemicals%22">Semiochemicals</searchLink><br /><searchLink fieldCode="DE" term="%22Corals%22">Corals</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Intraspecific and habitat-mediated responses to chemical cues play key roles in structuring populations of marine species. We investigated the behaviour of herbivorous-stage juvenile crown-of-thorns sea stars (COTS; Acanthaster sp.) in flow-through choice chambers to determine if chemical cues from their habitat influence movement and their transition to become coral predators. Juveniles at the diet transition stage were exposed to cues from their nursery habitat (coral rubble-crustose coralline algae (CCA)), live coral and adult COTS to determine if waterborne cues influence movement. In response to CCA and coral as sole cues, juveniles moved towards the cue source and when these cues were presented in combination, they exhibited a preference for coral. Juveniles moved away from adult COTS cues. Exposure to food cues (coral, CCA) in the presence of adult cues resulted in variable responses. Our results suggest a feedback mechanism whereby juvenile behaviour is mediated by adult chemical cues. Cues from the adult population may deter juveniles from the switch to corallivory. As outbreaks wane, juveniles released from competition may serve as a proximate source of outbreaks, supporting the juveniles-in-waiting hypothesis. The accumulation of juveniles within the reef infrastructure is an underappreciated potential source of COTS outbreaks that devastate coral reefs. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Proceedings of the Royal Society B: Biological Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1098/rspb.2024.0623 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 1 Subjects: – SubjectFull: Chemical ecology Type: general – SubjectFull: Coral reefs & islands Type: general – SubjectFull: Starfishes Type: general – SubjectFull: Coralline algae Type: general – SubjectFull: Semiochemicals Type: general – SubjectFull: Corals Type: general Titles: – TitleFull: Chemosensory behaviour of juvenile crown-of-thorns sea star (Acanthaster sp.), attraction to algal and coral food and avoidance of adult conspecifics. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Webb, M. – PersonEntity: Name: NameFull: Clements, M. – PersonEntity: Name: NameFull: Selvakumaraswamy, P. – PersonEntity: Name: NameFull: McLaren, E. – PersonEntity: Name: NameFull: Byrne, M. IsPartOfRelationships: – BibEntity: Dates: – D: 29 M: 05 Text: 5/29/2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 09628452 Numbering: – Type: volume Value: 291 – Type: issue Value: 2023 Titles: – TitleFull: Proceedings of the Royal Society B: Biological Sciences Type: main |
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