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首页> 外文期刊>The Science of the Total Environment >Is plastic ingestion in birds as toxic as we think? Insights from a plastic feeding experiment
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Is plastic ingestion in birds as toxic as we think? Insights from a plastic feeding experiment

机译：塑料摄入鸟类是否像我们想象的那样有毒？塑料喂养实验的见解

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摘要

Plastic pollution is a modern tragedy of the commons, with hundreds of species affected by society's waste. Birds in particular mistake plastic for prey, and millions of wild birds carry small plastic loads in their stomach and are exposed to potential toxicological effects. It is currently unknown how severely the toxicological and endocrine disrupting chemicals in plastic affect avian development, reproduction and endocrine function. To address this question, we conducted multi-generational plastic feeding experiments to test the toxicological consequences of plastic ingestion at environmentally relevant loads in Japanese quail, Coturnix japonica, investigating parental and two filial generations. Contrary to expectations, we found no evidence of lasting toxicological effects on mortality, adult body weight, organ histology, hormone levels, fertility, hatch rates and eggshell strength in birds experimentally fed plastic. However, we found plastic ingestion causes higher frequencies of male reproductive cysts and minor delays in chick growth and sexual maturity, though without affecting ultimate survival or reproductive output. We report that although plastic ingestion causes detectable endocrine effects in our model species, our lack of finding mortality, morbidity and adverse reproductive outcomes may challenge the common hypothesis of severe toxicological harm and population-level effects when environmentally relevant loads of plastic are ingested. Crown Copyright (c) 2019 Published by Elsevier B.V. All rights reserved.
机译：塑料污染是现代的公地悲剧，数百种物种受到社会废物的影响。鸟类尤其将塑料误认为是猎物，数百万只野生鸟类的胃中携带的塑料量很小，并暴露于潜在的毒理作用。目前尚不清楚塑料中的毒理学和内分泌干扰化学物质如何严重影响禽类的发育，繁殖和内分泌功能。为了解决这个问题，我们进行了多代塑料喂养实验，以测试日本鹌鹑，Coturnix japonica在与环境有关的负荷下塑料摄入的毒理学后果，并调查了父母代和两个子代。与预期相反，我们没有发现对通过实验饲喂塑料的禽类的死亡率，成年体重，器官组织学，激素水平，生育力，孵化率和蛋壳强度产生持久毒理学影响的证据。然而，我们发现塑料摄入虽然不影响最终存活或生殖输出，但会引起较高频率的男性生殖囊肿，并导致雏鸡生长和性成熟的轻微延迟。我们报告说，尽管摄入塑料会在我们的模型物种中引起可检测的内分泌作用，但是当摄入与环境相关的塑料时，我们缺乏发现死亡率，发病率和不利的生殖结果可能会挑战有关严重毒理学危害和种群水平影响的普遍假设。官方版权（c）2019由Elsevier B.V.保留所有权利。

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  • 来源
    《The Science of the Total Environment》 |2019年第15期|660-667|共8页
  • 作者

    Roman Lauren; Lowenstine Linda; Parsley Laura Maeve; Wilcox Chris; Hardesty Britta Denise; Gilardi Kirsten; Hindell Mark;

  • 作者单位

    Univ Tasmania, Inst Marine & Antarctic Studies, Hobart, Tas, Australia|CSIRO Oceans & Atmosphere, Hobart, Tas, Australia;

    Univ Calif Davis, Sch Vet Med, Dept Pathol Microbiol & Immunol, Davis, CA 95616 USA;

    Univ Tasmania, Sch Nat Sci, Hobart, Tas, Australia|Univ Canterbury, Sch Biol Sci, Christchurch, New Zealand;

    CSIRO Oceans & Atmosphere, Hobart, Tas, Australia;

    CSIRO Oceans & Atmosphere, Hobart, Tas, Australia;

    Univ Calif Davis, Sch Vet Med, Karen C Drayer Wildlife Hlth Ctr, Davis, CA 95616 USA;

    Univ Tasmania, Inst Marine & Antarctic Studies, Hobart, Tas, Australia|Univ Tasmania, Antarctic Climate & Ecosyst CRC, Hobart, Tas, Australia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Marine debris; Japanese quail; Toxicology; Endocrine disruption;

    机译：海洋垃圾;日本鹌鹑;毒理学;内分泌干扰;

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