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Plastic ingestion by Flesh-footed Shearwaters, Puffinus carneipes, and Wedge-tailed Shearwaters, Puffinus pacificus

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Hutton, I and Carlile, N and Priddel, D (2008) Plastic ingestion by Flesh-footed Shearwaters, Puffinus carneipes, and Wedge-tailed Shearwaters, Puffinus pacificus. Papers and Proceedings of the Royal Society of Tasmania, 142 (1). pp. 67-72. ISSN 0080-4703

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Abstract

The population of Flesh-footed Shearwaters, Puffinus carneipes, on Lord Howe Island, Australia, has decreased over recent decades. Known
threats include long-line fishing and loss of nesting habitat. The recent occurrence of plastic debris in breeding colonies has raised concerns
that plastic ingestion also may be contributing to the decline of this species. In this paper we investigate the extent of plastic ingestion by
Flesh-footed and Wedge-tailed shearwaters, Puffinus pacificus, on Lord Howe Island. The remains offailed Flesh-footed Shearwater fledglings
contained substantial quantities of plastics: up to 37 cm3, equivalent to at least 31% of proventricular capacity. Road-killed adults (n=21)
had no plastic in their proventriculus. Proventricular contents of near-fledged birds, obtained by non-lethal means, showed that 79%
of Flesh-footed Shearwaters and 43% of Wedge-tailed Shearwaters contained plastics, in volumes of up to 18.0 cm3 and 2.8 cm3, respectively.
Plastic loads were significantly less in Wedge-tailed Shearwaters, the difference possibly due to different densities of plastic within
the foraging locations of each species. The impact of plastic ingestion on the survival of Flesh-footed Shearwater chicks and fledglings, and
the consequent impacts on the demography of the population are unknown and warrant further investigation.

Item Type: Article
Keywords: Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library
Journal or Publication Title: Papers and Proceedings of the Royal Society of Tasmania
Page Range: pp. 67-72
ISSN: 0080-4703
Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:

Copyright Royal Society of Tasmania

Date Deposited: 16 May 2012 04:38
Last Modified: 18 Nov 2014 04:31
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