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| 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. |
| 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... |
| Tipo: Text |
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| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00391/50239/50878.pdf |
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