Plastic ingestion by Flesh-footed Shearwaters, Puffinus carneipes, andWedge-tailed Shearwaters, Puffinus pacificus
Plastic ingestion by Flesh-footed Shearwaters, Puffinus carneipes, andWedge-tailed Shearwaters, Puffinus pacificus
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肉足海鸥 (Puffinus carneipes) 和楔尾海鸥 (Puffinus pacificus) 摄入的塑料
DOI：
10.26749/rstpp.142.1.67
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发表时间：
2008
影响因子：
5.8
通讯作者：
D. Priddel
中科院分区：
文献类型：
--
作者：
I. Hutton;N. Carlile;D. Priddel
近几十年来，澳大利亚豪勋爵岛上的肉足剪水雀（Puffinus carneipes）数量有所减少。已知的威胁包括长线捕鱼和筑巢栖息地的丧失。最近在繁殖群体中出现的塑料碎片引起了人们的担忧，即塑料摄入也可能导致该物种的下降。在本文中，我们调查的程度，塑料摄入的肉脚和楔尾剪水，Puffinus pacificus，豪勋爵岛。这些被遗弃的肉脚剪水雏鸟的遗体中含有大量的塑料：高达37立方厘米，相当于至少31%的前胃容量。道路死亡的成年人（n=21）没有塑料在他们的前胃。近羽翼丰满的鸟类，通过非致命手段获得的前胃内容物显示，79%的肉足剪水和43%的楔尾剪水含有塑料，体积分别高达18.0立方厘米和2.8立方厘米。
楔尾剪尾鸥的塑性载荷明显较小，这种差异可能是由于楔尾剪尾鸥体内的塑性密度不同所致。
每个物种的觅食地点塑料摄入对肉足剪水雏鸟和雏鸟生存的影响，以及对种群人口统计的影响尚不清楚，需要进一步调查。
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.