A quantitative analysis linking seabird mortality and marine debris ingestion
A quantitative analysis linking seabird mortality and marine debris ingestion
复制标题
DOI：
10.1038/s41598-018-36585-9
复制
发表时间：
2019-03-01
影响因子：
4.6
通讯作者：
Wilcox, Chris
中科院分区：
文献类型：
--
作者：
Roman, Lauren;Hardesty, Britta Denise;Wilcox, Chris
Procellariiformes是全球最受威胁的鸟类群体，也是最频繁摄入海洋垃圾的群体。海洋废弃物摄入是全球公认的对海洋生物多样性的威胁，但鸟类摄入多少废弃物与死亡率之间的关系仍然知之甚少。使用51种1733只海鸟的死亡原因数据，我们证明了摄入的碎片和碎片摄入死亡原因（剂量反应）之间的显着关系。吃下一个碎片物品会有20.4%的几率终生死亡，吃下93个物品后会上升到100%。胃肠道阻塞是死亡的主要原因。总体而言，气球是风险最高的碎片物品;导致死亡的可能性是硬塑料的32倍。这些研究结果对量化海鸟因碎片摄入而死亡率具有重要意义，并提供了旨在降低全球受威胁物种死亡率的明确政策目标。
Procellariiformes are the most threatened bird group globally, and the group with the highest frequency of marine debris ingestion. Marine debris ingestion is a globally recognized threat to marine biodiversity, yet the relationship between how much debris a bird ingests and mortality remains poorly understood. Using cause of death data from 1733 seabirds of 51 species, we demonstrate a significant relationship between ingested debris and a debris-ingestion cause of death (dose-response). There is a 20.4% chance of lifetime mortality from ingesting a single debris item, rising to 100% after consuming 93 items. Obstruction of the gastro-intestinal tract is the leading cause of death. Overall, balloons are the highest-risk debris item; 32 times more likely to result in death than ingesting hard plastic. These findings have significant implications for quantifying seabird mortality due to debris ingestion, and provide identifiable policy targets aimed to reduce mortality for threatened species worldwide.