P and trace metal contents in biomaterials, soils, sediments and plants in colony of red-footed booby (Sula sula) in the Dongdao Island of South China Sea

Chemosphere
Xiaodong LiuYuhong Wang

Abstract

Concentrations of P and trace metals Zn, Cu, Cd, Pb and Hg in the faeces, bones, eggshells and feathers of seabirds and in the plants, soils and sediments with and without seabird influence on Dongdao Island, South China Sea, were determined and analyzed. Among the seabird biomaterials, the levels of P, Zn, Cu and Cd are the highest in the droppings and several times those in other materials; the Hg concentration is the highest in the feathers; and the Pb content is comparable among these biomaterials. These marked differences indicate different intake-bioaccumulation-elimination pathways for different trace metals. The levels of P, Zn, Cu, Cd and Hg in the plant, soil and sediment samples with the influence of seabird droppings are significantly higher than those in the samples without, and they are significantly correlated with each other. Thus, P, Zn, Cu, Cd and Hg are very likely to have a common source-predominantly bird guano-and the faeces of red-footed booby is an important vector for the flux of nutrient phosphorus and trace metals Zn, Cu, Cd and Hg from marine to island ecosystems on Dongdao Island.

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Citations

Oct 25, 2012·Environmental Science and Pollution Research International·Silvia JerezAndrés Barbosa
May 12, 2010·Proceedings of the National Academy of Sciences of the United States of America·U BergmannP Larson
Mar 13, 2014·The Science of the Total Environment·Qingru WuFengyang Wang
Jul 23, 2013·Marine Pollution Bulletin·Geraldina SignaSalvatrice Vizzini
Oct 26, 2016·The Science of the Total Environment·K E HarganJ P Smol
Dec 2, 2020·The Science of the Total Environment·Saúl De La Peña-Lastra

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