Floating debris and organisms can raft to Antarctic coasts from all major Southern Hemisphere landmasses.
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| Title: | Floating debris and organisms can raft to Antarctic coasts from all major Southern Hemisphere landmasses. |
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| Authors: | Dawson, Hannah R. S.1,2 (AUTHOR) hannah.dawson@utas.edu.au, England, Matthew H.2,3 (AUTHOR), Morrison, Adele K.4 (AUTHOR), Tamsitt, Veronica5 (AUTHOR), Fraser, Ceridwen I.6 (AUTHOR) |
| Source: | Global Change Biology. Aug2024, Vol. 30 Issue 8, p1-14. 14p. |
| Subjects: | Marine ecology, Ocean, Coasts, Kelps, Peninsulas |
| Abstract: | Antarctica's unique marine ecosystems are threatened by the arrival of non‐native marine species on rafting ocean objects. The harsh environmental conditions in Antarctica prevent the establishment of many such species, but warming around the continent and the opening up of ice‐free regions may already be reducing these barriers. Although recent genomic work has revealed that rafts—potentially carrying diverse coastal passengers—reach Antarctica from sub‐Antarctic islands, Antarctica's vulnerability to incursions from Southern Hemisphere continents remains unknown. Here we use 0.1° global ocean model simulations to explore whether drift connections exist between more northern, temperate landmasses and the Antarctic coastline. We show that passively floating objects can drift to Antarctica not only from sub‐Antarctic islands, but also from continental locations north of the Subtropical Front including Australia, South Africa, South America and Zealandia. We find that the Antarctic Peninsula is the region at highest risk for non‐native species introductions arriving by natural oceanic dispersal, highlighting the vulnerability of this region, which is also at risk from introductions via ship traffic and rapid warming. The widespread connections with sub‐Antarctic and temperate landmasses, combined with an increasing abundance of marine anthropogenic rafting vectors, poses a growing risk to Antarctic marine ecosystems, especially as environmental conditions around Antarctica are projected to become more suitable for non‐native species in the future. [ABSTRACT FROM AUTHOR] |
| Copyright of Global Change Biology is the property of Wiley-Blackwell 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: 179321106 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Floating debris and organisms can raft to Antarctic coasts from all major Southern Hemisphere landmasses. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Dawson%2C+Hannah+R%2E+S%2E%22">Dawson, Hannah R. S.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> hannah.dawson@utas.edu.au</i><br /><searchLink fieldCode="AR" term="%22England%2C+Matthew+H%2E%22">England, Matthew H.</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Morrison%2C+Adele+K%2E%22">Morrison, Adele K.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tamsitt%2C+Veronica%22">Tamsitt, Veronica</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fraser%2C+Ceridwen+I%2E%22">Fraser, Ceridwen I.</searchLink><relatesTo>6</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Global+Change+Biology%22">Global Change Biology</searchLink>. Aug2024, Vol. 30 Issue 8, p1-14. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Marine+ecology%22">Marine ecology</searchLink><br /><searchLink fieldCode="DE" term="%22Ocean%22">Ocean</searchLink><br /><searchLink fieldCode="DE" term="%22Coasts%22">Coasts</searchLink><br /><searchLink fieldCode="DE" term="%22Kelps%22">Kelps</searchLink><br /><searchLink fieldCode="DE" term="%22Peninsulas%22">Peninsulas</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Antarctica's unique marine ecosystems are threatened by the arrival of non‐native marine species on rafting ocean objects. The harsh environmental conditions in Antarctica prevent the establishment of many such species, but warming around the continent and the opening up of ice‐free regions may already be reducing these barriers. Although recent genomic work has revealed that rafts—potentially carrying diverse coastal passengers—reach Antarctica from sub‐Antarctic islands, Antarctica's vulnerability to incursions from Southern Hemisphere continents remains unknown. Here we use 0.1° global ocean model simulations to explore whether drift connections exist between more northern, temperate landmasses and the Antarctic coastline. We show that passively floating objects can drift to Antarctica not only from sub‐Antarctic islands, but also from continental locations north of the Subtropical Front including Australia, South Africa, South America and Zealandia. We find that the Antarctic Peninsula is the region at highest risk for non‐native species introductions arriving by natural oceanic dispersal, highlighting the vulnerability of this region, which is also at risk from introductions via ship traffic and rapid warming. The widespread connections with sub‐Antarctic and temperate landmasses, combined with an increasing abundance of marine anthropogenic rafting vectors, poses a growing risk to Antarctic marine ecosystems, especially as environmental conditions around Antarctica are projected to become more suitable for non‐native species in the future. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Global Change Biology is the property of Wiley-Blackwell 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: 10.1111/gcb.17467 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 1 Subjects: – SubjectFull: Marine ecology Type: general – SubjectFull: Ocean Type: general – SubjectFull: Coasts Type: general – SubjectFull: Kelps Type: general – SubjectFull: Peninsulas Type: general Titles: – TitleFull: Floating debris and organisms can raft to Antarctic coasts from all major Southern Hemisphere landmasses. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Dawson, Hannah R. S. – PersonEntity: Name: NameFull: England, Matthew H. – PersonEntity: Name: NameFull: Morrison, Adele K. – PersonEntity: Name: NameFull: Tamsitt, Veronica – PersonEntity: Name: NameFull: Fraser, Ceridwen I. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 13541013 Numbering: – Type: volume Value: 30 – Type: issue Value: 8 Titles: – TitleFull: Global Change Biology Type: main |
| ResultId | 1 |
