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Bumblebee family lineage survival is enhanced in high-quality landscapes

机译：大黄蜂家族世系在高质量景观中的存活率得到了提高

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摘要

Insect pollinators such as bumblebees (Bombus spp.) are in global decline(1,2). A major cause of this decline is habitat loss due to agricultural intensification(3). A range of global and national initiatives aimed at restoring pollinator habitats and populations have been developed(4,5). However, the success of these initiatives depends critically upon understanding how landscape change affects key population-level parameters, such as survival between lifecycle stages(6), in target species. This knowledge is lacking for bumblebees, because of the difficulty of systematically finding and monitoring colonies in the wild. We used a combination of habitat manipulation, land-use and habitat surveys, molecular genetics(7) and demographic and spatial modelling to analyse between-year survival of family lineages in field populations of three bumblebee species. Here we show that the survival of family lineages from the summer worker to the spring queen stage in the following year increases significantly with the proportion of high-value foraging habitat, including spring floral resources, within 250-1,000 m of the natal colony. This provides evidence for a positive impact of habitat quality on survival and persistence between successive colony cycle stages in bumblebee populations. These findings also support the idea that conservation interventions that increase floral resources at a landscape scale and throughout the season have positive effects on wild pollinators in agricultural landscapes.
机译：大黄蜂（Bombus spp。）等昆虫传粉媒介正在全球范围内减少（1,2）。这种下降的主要原因是由于农业集约化造成的栖息地丧失（3）。已经制定了一系列旨在恢复授粉媒介栖息地和种群的全球和国家举措（4,5）。然而，这些举措的成功关键取决于了解景观变化如何影响关键种群水平参数，例如目标物种在生命周期各阶段之间的存活率（6）。大黄蜂缺乏这种知识，因为难以在野外系统地发现和监测菌落。我们结合了栖息地操纵，土地利用和栖息地调查，分子遗传学（7）以及人口和空间模型的组合，分析了三种大黄蜂物种在田间种群中的家族谱系的年生存率。在这里，我们表明，在本族群的250-1,000 m范围内，随着高价值觅食栖息地（包括春季花卉资源）的比例，从夏季工人到次年春季女王期的家庭世系的存活率显着增加。这提供了证据，表明在大黄蜂种群中，生境质量对连续的菌落循环阶段之间的生存和持久性有积极影响。这些发现还支持这样的观点，即在景观范围内和整个季节内增加花卉资源的保护性干预措施对农业景观中的野生传粉媒介具有积极影响。

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  • 来源
    《Nature》 |2017年第7646期|547-549|共3页
  • 作者

    Carvell Claire; Bourke Andrew F. G.; Dreier Stephanie; Freeman Stephen N.; Hulmes Sarah; Jordan William C.; Redhead John W.; Sumner Seirian; Wang Jinliang; Heard Matthew S.;

  • 作者单位

    NERC Ctr Ecol Hydrol, Benson Lane, Wallingford OX10 8BB, Oxon, England;

    Univ East Anglia, Sch Biol Sci, Norwich Res Pk, Norwich NR4 7TJ, Norfolk, England;

    Zool Soc London, Inst Zool, Regents Pk, London NW1 4RY, England|Univ Bristol, Sch Biol Sci, Life Sci Bldg,24 Tyndall Ave, Bristol BS8 1TQ, Avon, England;

    NERC Ctr Ecol Hydrol, Benson Lane, Wallingford OX10 8BB, Oxon, England;

    NERC Ctr Ecol Hydrol, Benson Lane, Wallingford OX10 8BB, Oxon, England;

    Zool Soc London, Inst Zool, Regents Pk, London NW1 4RY, England;

    NERC Ctr Ecol Hydrol, Benson Lane, Wallingford OX10 8BB, Oxon, England;

    Zool Soc London, Inst Zool, Regents Pk, London NW1 4RY, England|Univ Bristol, Sch Biol Sci, Life Sci Bldg,24 Tyndall Ave, Bristol BS8 1TQ, Avon, England|UCL, Ctr Biodivers & Environm Res, Gower St, London WC1E 6BT, England;

    Zool Soc London, Inst Zool, Regents Pk, London NW1 4RY, England;

    NERC Ctr Ecol Hydrol, Benson Lane, Wallingford OX10 8BB, Oxon, England;

  • 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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