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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Maternally invested carotenoids compensate costly ectoparasitism in the hihi
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Maternally invested carotenoids compensate costly ectoparasitism in the hihi

机译：母体投资的类胡萝卜素补偿了hihi中昂贵的外皮炎

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摘要

Dietary ingested carotenoid biomolecules have been linked to both improved health and immunity in nestling birds. Here, we test whether maternally invested egg carotenoids can offset the cost of parasitism in developing nestling hihi (Notiomystis cincta) from the bloodsucking mite (Ornithonyssus bursa). Our results reveal clear negative effects of parasitism on nestlings, and that maternally derived carotenoids compensate this cost, resulting in growth parameters and ultimate mass achieved being similar to nonpara-sitized young. Our results offer an unique example of a direct positive relationship between enhanced maternal investment of carotenoids and an ability to cope with a specific and costly parasite in young birds. As O. bursa infestations reduce population viability in hihi, our findings also highlight the importance of key nutritional resources for endangered bird populations to better cope with common parasite infestations.
机译：饮食中摄入的类胡萝卜素生物分子与改善雏鸟的健康和免疫力有关。在这里，我们测试了由母亲投资的鸡蛋类胡萝卜素是否可以抵消吸血螨（Ornithonyssus bursa）发育成雏型hihi（Notiomystis cincta）的寄生虫成本。我们的研究结果表明，寄生虫对雏鸟具有明显的负面影响，而母体产生的类胡萝卜素可以弥补这一成本，从而导致生长参数和最终质量类似于未寄生的年轻人。我们的研究结果提供了一个独特的例子，表明母亲对类胡萝卜素的投资增加与应对幼鸽中特定且昂贵的寄生虫的能力之间存在直接的正相关关系。由于法氏囊侵染会降低hihi种群的生存能力，我们的发现还凸显了关键营养资源对于濒临灭绝的鸟类种群的重要性，以便更好地应对常见的寄生虫侵袭。

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    John G. Ewen; Rose Thorogood; Patricia Brekke; Phillip Cassey; Filiz Karadas; Doug P. Armstrong;

  • 作者单位

    Institute of Zoology, Zoological Society of London, Regents Park, London NW1 4RY, United Kingdom;

    Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, United Kingdom;

    Institute of Zoology, Zoological Society of London, Regents Park, London NW1 4RY, United Kingdom;

    Centre for Ornithology, School of Biosciences, Birmingham University, Edgbaston, Birmingham B15 2TT, United Kingdom;

    Department of Animal Science, University of Yuezuencue Yil, Van 65080, Turkey;

    Wildlife Ecology Group, Institute of Natural Resources, Massey University Manawatu, Private Bag 11-222, Palmerston North 4442, New Zealand;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    life history; maternal effects; parasites; stitchbird;

    机译：生活史;产妇影响;寄生虫针鸟;

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