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Combined pesticide exposure severely affects individual- and colony-level traits in bees

机译：农药联合暴露严重影响蜜蜂的个体和菌落水平性状

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接触新烟碱杀虫剂已知会影响蜂的行为，并且rn可能是造成当前蜂的数量下降的一个关键因rn素。此前直没有可能确定对个体的影响与对rn群体的影响之间的机制联系，但这项研究发rn现，在大黄蜂工蜂个体的有害行为影响及其在rn“field-level"接触杀虫剂(本研究中指新烟碱rn和拟除虫菊酯两种杀虫剂)与随后对群体的发rn展和生存的影响之间存在一个直接联系。这些rn杀虫剂降低搜寻食物行为的有效性，并对幼蜂rn关爱和群体生产力有连锁效应。%Reported widespread declines of wild and managed insect pollinators have serious consequences for global ecosystem services and agricultural production. Bees contribute approximately 80% of insect pollination, so it is important to understand and mitigate the causes of current declines in bee populations. Recent studies have implicated the role of pesticides in these declines, as exposure to these chemicals has been associated with changes in bee behaviour and reductions in colony queen production. However, the key link between changes in individual behaviour and the consequent impact at the colony level has not been shown. Social bee colonies depend on the collective performance of many individual workers. Thus, although field-level pesticide concentrations can have subtle or sublethal effects at the individual level, it is not known whether bee societies can buffer such effects or whether it results in a severe cumulative effect at the colony level. Furthermore, widespread agricultural intensification means that bees are exposed to numerous pesticides when foraging, yet the possible combinatorial effects of pesticide exposure have rarely been investigated. Here we show that chronic exposure of bumblebees to two pesticides (neonicotinoid and pyrethroid) at concentrations that could approximate field-level exposure impairs natural foraging behaviour and increases worker mortality leading to significant reductions in brood development and colony success. We found that worker foraging performance, particularly pollen collecting efficiency, was significantly reduced with observed knock-on effects for forager recruitment, worker losses and overall worker productivity. Moreover, we provide evidence that combinatorial exposure to pesticides increases the propensity of colonies to fail.
机译：接触新烟碱杀虫剂已知会影响蜂的行为，并且rn可能是造成当前蜂的数量下降的一个关键因rn素。此前直没有可能确定对个体的影响与对rn群体的影响之间的机制联系，但这项研究发rn现，在大黄蜂工蜂个体的有害行为影响及其在rn“field-level"接触杀虫剂(本研究中指新烟碱rn和拟除虫菊酯两种杀虫剂)与随后对群体的发rn展和生存的影响之间存在一个直接联系。这些rn杀虫剂降低搜寻食物行为的有效性，并对幼蜂rn关爱和群体生产力有连锁效应。%Reported widespread declines of wild and managed insect pollinators have serious consequences for global ecosystem services and agricultural production. Bees contribute approximately 80% of insect pollination, so it is important to understand and mitigate the causes of current declines in bee populations. Recent studies have implicated the role of pesticides in these declines, as exposure to these chemicals has been associated with changes in bee behaviour and reductions in colony queen production. However, the key link between changes in individual behaviour and the consequent impact at the colony level has not been shown. Social bee colonies depend on the collective performance of many individual workers. Thus, although field-level pesticide concentrations can have subtle or sublethal effects at the individual level, it is not known whether bee societies can buffer such effects or whether it results in a severe cumulative effect at the colony level. Furthermore, widespread agricultural intensification means that bees are exposed to numerous pesticides when foraging, yet the possible combinatorial effects of pesticide exposure have rarely been investigated. Here we show that chronic exposure of bumblebees to two pesticides (neonicotinoid and pyrethroid) at concentrations that could approximate field-level exposure impairs natural foraging behaviour and increases worker mortality leading to significant reductions in brood development and colony success. We found that worker foraging performance, particularly pollen collecting efficiency, was significantly reduced with observed knock-on effects for forager recruitment, worker losses and overall worker productivity. Moreover, we provide evidence that combinatorial exposure to pesticides increases the propensity of colonies to fail.

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  • 来源
    《Nature》 |2012年第7422期|p.105-108a5|共5页
  • 作者

    Richard J. Gill; Oscar Ramos-Rodriguez; Nigel E. Raine;

  • 作者单位

    School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK;

    School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK;

    School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK;

  • 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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