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Issue date
2021-02-16Subject Terms
ArdennaFlesh-footed Shearwater
litter
pollution
vector
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Show full item recordAbstract
Seabirds are apex predators in the marine environment and well-known ecosystem engineers, capable of changing their terrestrial habitats by introducing marine-derived nutrients via deposition of guano and other allochthonous inputs. However, with the health of the world's oceans under threat due to anthropogenic pressures such as organic, inorganic, and physical pollutants, seabirds are depositing these same pollutants wherever they come to land. Using data from 2018 to 2020, we quantify how the Flesh-footed Shearwater (Ardenna carneipes) has inadvertently introduced physical pollutants to their colonies on Lord Howe Island, a UNESCO World Heritage site in the Tasman Sea and their largest breeding colony, through a mix of regurgitated pellet (bolus) deposition and carcasses containing plastic debris. The density of plastics within the shearwater colonies ranged between 1.32 and 3.66 pieces/m<sup>2</sup> (mean ± SE: 2.18 ± 0.32), and a total of 688,480 (95% CI: 582,409-800,877) pieces are deposited on the island each year. Our research demonstrates that seabirds are a transfer mechanism for marine-derived plastics, reintroducing items back into the terrestrial environment, thus making seabird colonies a sink for plastic debris. This phenomenon is likely occurring in seabird colonies across the globe and will increase in severity as global plastic production and marine plastic pollution accelerates without adequate mitigation strategies.Citation
Megan L. Grant, Jennifer L. Lavers, Ian Hutton, Alexander L. Bond, Seabird breeding islands as sinks for marine plastic debris, Environmental Pollution, Volume 276, 2021, 116734, ISSN 0269-7491, https://doi.org/10.1016/j.envpol.2021.116734.Publisher
Elsevier BVJournal
Environmental PollutionType
Journal ArticleItem Description
Copyright © 2021, The Authors. This document is the author’s final accepted version of the journal article. You are advised to consult the published version if you wish to cite from it.NHM Repository
ISSN
0269-7491EISSN
1873-6424ae974a485f413a2113503eed53cd6c53
10.1016/j.envpol.2021.116734
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