Environment and Climate Change Canada, Canadian Wildlife Service, Delta, British Columbia, Canada.
Acadia University, Department of Biology, Wolfville, Nova Scotia, Canada.
Mar Pollut Bull. 2018 Aug;133:684-692. doi: 10.1016/j.marpolbul.2018.06.028. Epub 2018 Jun 19.
We report a mortality event of Red Phalaropes (Phalaropus fulicarius) that occurred from October to November 2016 on the north coast of British Columbia, Canada. All individuals were severely underweight and showing signs of physiological stress. The guts of all carcasses contained ingested plastics (100%, n = 9). Distribution modelling from pelagic bird surveys (1990-2010) indicated that Red Phalaropes are not typically found in the study area during fall months. Ocean conditions during fall 2016 were unusually warm, coinciding with reduced upwelling in the study area. eBird records since 1980 indicated Red Phalaropes are observed closer to shore during periods associated with reduced upwelling. These results suggest that distribution shifts of Red Phalaropes closer to shore, where plastic debris occurs in higher concentrations, may lead phalaropes to feed on plastic debris while in a weakened state, resulting in a combination of two adverse circumstances.
我们报告了一起 2016 年 10 月至 11 月发生在加拿大不列颠哥伦比亚省北岸的红鹈鹕死亡事件。所有个体都严重消瘦，并出现生理压力的迹象。所有尸体的内脏都含有摄入的塑料（100%，n=9）。从海鸟调查（1990-2010 年）的分布模型表明，红鹈鹕在秋季通常不会出现在研究区域。2016 年秋季的海洋条件异常温暖，与研究区域的上升流减少相吻合。自 1980 年以来的 eBird 记录表明，在与上升流减少相关的时期，红鹈鹕更靠近海岸被观察到。这些结果表明，红鹈鹕向更靠近海岸的分布转移，而塑料碎片在那里浓度更高，可能导致鹈鹕在虚弱状态下以塑料碎片为食，从而导致两种不利情况的结合。
