Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13574 |
Quantifying impacts of plastic debris on marine wildlife identifies ecological breakpoints | |
Nina Marn; Marko Jusup; Sebastiaan A. L. M. Kooijman; Tin Klanjscek | |
2020-08-13 | |
发表期刊 | Ecology Letters |
出版年 | 2020 |
英文摘要 | Quantifying sublethal effects of plastics ingestion on marine wildlife is difficult, but key to understanding the ontogeny and population dynamics of affected species. We developed a method that overcomes the difficulties by modelling individual ontogeny under reduced energy intake and expenditure caused by debris ingestion. The predicted ontogeny is combined with a population dynamics model to identify ecological breakpoints: cessation of reproduction or negative population growth. Exemplifying this approach on loggerhead turtles, we find that between 3% and 25% of plastics in digestive contents causes a 2.5–20% reduction in perceived food abundance and total available energy, resulting in a 10–15% lower condition index and 10% to 88% lower total seasonal reproductive output compared to unaffected turtles. The reported plastics ingestion is insufficient to impede sexual maturation, but population declines are possible. The method is readily applicable to other species impacted by debris ingestion. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/287790 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Nina Marn,Marko Jusup,Sebastiaan A. L. M. Kooijman,et al. Quantifying impacts of plastic debris on marine wildlife identifies ecological breakpoints[J]. Ecology Letters,2020. |
APA | Nina Marn,Marko Jusup,Sebastiaan A. L. M. Kooijman,&Tin Klanjscek.(2020).Quantifying impacts of plastic debris on marine wildlife identifies ecological breakpoints.Ecology Letters. |
MLA | Nina Marn,et al."Quantifying impacts of plastic debris on marine wildlife identifies ecological breakpoints".Ecology Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
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