| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Seabirds supply nitrogen to reefbuilding corals on remote Pacific islets
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| Autores: |
Lorrain, Anne
Houlbreque, Fanny
Benzoni, Francesca
Barjon, Lucie
Tremblay-boyer, Laura
Menkes, Christophe
Gillikin, David P.
Payri, Claude
Jourdan, Herve
Boussarie, Germain
Verheyden, Anouk
Vidal, Eric
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| Data: |
2017-06
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| Ano: |
2017
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| Resumo: |
Seabirds concentrate nutrients from large marine areas on their nesting islands playing an important ecological role in nutrient transfer between marine and terrestrial ecosystems. Here we investigate the role of guano on corals reefs across scales by analyzing the stable nitrogen isotopic (delta N-15) values of the scleractinian coral Pocillopora damicornis on fringing reefs around two Pacific remote islets with large seabird colonies. Marine stations closest to the seabird colonies had higher nitrate + nitrite concentrations compared to more distant stations. Coral and zooxanthellae delta N-15 values were also higher at these sites, suggesting that guano-derived nitrogen is assimilated into corals and contributes to their nitrogen requirements. The spatial extent of guano influence was however restricted to a local scale. Our results demonstrate that seabird-derived nutrients not only spread across the terrestrial ecosystem, but also affect components of the adjacent marine ecosystem. Further studies are now needed to assess if this nutrient input has a positive or negative effect for corals. Such studies on remote islets also open fresh perspectives to understand how nutrients affect coral reefs isolated from other anthropogenic stressors.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00391/50239/50878.pdf
https://archimer.ifremer.fr/doc/00391/50239/50879.pdf
DOI:10.1038/s41598-017-03781-y
https://archimer.ifremer.fr/doc/00391/50239/
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| Editor: |
Nature Publishing Group
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| Formato: |
application/pdf
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| Fonte: |
Scientific Reports (2045-2322) (Nature Publishing Group), 2017-06 , Vol. 7 , N. 3721 , P. 1-11
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| Direitos: |
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated ...
info:eu-repo/semantics/openAccess
restricted use
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