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首页> 外文期刊>Marine Ornithology >Composition of beached marine birds from an oiling event in southeastern newfoundland and labrador, november 2004
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Composition of beached marine birds from an oiling event in southeastern newfoundland and labrador, november 2004

机译：2004年11月在纽芬兰东南部和拉布拉多发生的一次上油事件引起的滩涂海鸟的​​组成

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摘要

The waters off Newfoundland and Labrador, Canada, have one of the worst chronic oiling problems in the world. Although the species generally affected by chronic oiling is known, details on the sex, age and condition of birds killed are not well understood. In late November 2004, oiled seabirds began arriving on the beaches of eastern Placentia Bay. Over the next week, 409 oiled marine birds were collected, with Thick-billed Murres Uria lomvia (67%) and Dovekies Alle alle (23%) constituting the majority. Adult birds comprised 80% (n = 253) of Thick-billed Murres, 61% (n = 84) of Dovekies and only 38% (n = 16) of Common Murres Uria aalge. Sex ratios were close to unity (48.2% male, n = 189) for Thick-billed Murres, but male-biased for Dovekies (60.5%, n = 76) and Common Murres (85.7%, n = 14). Most Dovekies and Thick-billed Murres were found dead (83%), with the highest proportion found alive three and four days, respectively, after the first birds arrived. In spite of additional mass from the oil, body masses of Thick-billed Murres were low (mean: 742 g; range: 520-986 g; versus an expected 950 g for wintering birds). This study confirms previous assumptions that chronic oil pollution in Newfoundland affects all ages of Thick-billed Murres equally, because the age distribution among recovered birds was similar to that expected in the population at large.
机译：加拿大纽芬兰和拉布拉多附近的水域是世界上最严重的长期注油问题之一。尽管人们普遍了解受长期上油影响的物种，但人们对被杀死的鸟类的性别，年龄和状况的详细信息还不甚了解。 2004年11月下旬，涂油的海鸟开始到达普拉圣西亚湾东部的海滩。在接下来的一周中，收集了409只涂油的海洋鸟类，其中大部分是厚嘴Murres Uria lomvia（67％）和Dovekies Alle alle（23％）。成年鸟类占厚嘴穆尔的80％（n = 253），Dovekies占61％（n = 84），而普通Murres乌里亚血统只有38％（n = 16）。粗嘴米勒的性别比接近统一（男性为48.2％，n = 189），但多夫基犬（60.5％，n = 76）和普米尔米尔斯（85.7％，n = 14）的男性偏见。在首批鸟类到达后的三到四天内，大多数鸽舍和厚嘴穆勒犬被发现死亡（83％），其中存活率最高。尽管油中产生了额外的重量，但厚嘴穆勒犬的体重仍然很低（平均：742 g;范围：520-986 g;相比之下，越冬的鸟类预计为950 g）。这项研究证实了先前的假设，即纽芬兰的慢性油污染会平均影响厚嘴Murres的所有年龄，因为恢复鸟类的年龄分布与整个种群中的预期年龄相似。

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