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首页> 外文期刊>Environmental Science & Technology >Effects of Maternal Reproductive Investment on Sex-Specific Pollutant Accumulation in Seabirds: A Meta-Analysis
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Effects of Maternal Reproductive Investment on Sex-Specific Pollutant Accumulation in Seabirds: A Meta-Analysis

机译：母体生殖投资对海鸟性别特异性污染物积累的影响：荟萃分析

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摘要

Avian egg production demands resources such as lipids and proteins. Relative egg size and mass varies across species, reflecting differences in maternal investment. This variability may affect the maternal transfer of anthropogenic pollutants including lipophilic polychlorinated biphenyls (PCBs) and protein-associated per- and polyfluoroalkyl substances (PFASs) and mercury (Hg). We conducted a meta-analysis on seabirds and investigated whether interspecies variation in maternal investment contributes toward skewed pollutant concentration ratios between males and females, as C-male/C-female (80 studies). Overall concentrations of PCBs and perfluorooctanesulfonic acid (PFOS) were 1.6 and 1.3 times higher, respectively, in males than females, whereas mercury was similar between sexes. Few studies compared females and eggs (n = 6), highlighting a knowledge gap. We found that an increasing maternal investment as a clutch-to-female mass ratio resulted in lower PCB concentrations in females than in males during the incubation period, but no sex-specific differences were observed for mercury and PFOS. Egg production is both a lipid dominated and protein-limited process. Females transfer lipophilic pollutants more easily to eggs, and to a higher degree with increasing maternal investment, but feeding ecology may be more important. Interspecies variation in maternal pollutant transfer may lead to negative effects scaling from an offspring to population level.
机译：禽蛋生产需要脂质和蛋白质等资源。相对蛋尺寸和质量各种各样地不同，反映了母体投资的差异。这种变异性可能影响人为污染物的母体转移，包括亲脂性多氯联苯（PCB）和蛋白质相关的每和聚氟烷基物质（PFASS）和汞（HG）。我们对海鸟进行了荟萃分析，并调查了母体投资中的间隙变化是否有助于男性和女性之间的偏移污染物浓度比，如C-Mear / C-mean（80项研究）。 PCB和全氟辛磺酸（PFOS）的总浓度分别比女性分别为1.6％，雄性，而汞在性别之间相似。少数研究与雌性和鸡蛋（n = 6）进行了比较，突出了知识差距。我们发现，作为离合器到阴质量的母体投资增加导致女性的PCB浓度低于孵育期间的男性，但没有观察到汞和磷脂磷的性别特异性差异。鸡蛋生产是脂质主导和蛋白质有限的过程。女性将亲容易转移亲脂性污染物，并随着母体投资增加，较高程度，但喂养生态可能更为重要。母体污染物转移的间隙变异可能导致从后代到人口水平的负面影响。

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  • 来源
    《Environmental Science & Technology》 |2019年第13期|7821-7829|共9页
  • 作者

    Hitchcock Daniel J.; Andersen Tom; Varpe Oystein; Borga Katrine;

  • 作者单位

    Univ Oslo Dept Biosci N-0316 Oslo Norway;

    Univ Oslo Dept Biosci N-0316 Oslo Norway;

    Univ Ctr Svalbard Dept Arctic Biol N-9171 Longyearbyen Norway|Norwegian Inst Nat Res N-5006 Bergen Norway;

    Univ Oslo Dept Biosci N-0316 Oslo Norway;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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