蜜蜂生病时依然是出色的食物搜寻者
文章来源:未知 文章作者:enread 发布时间:2016-12-10 08:17 字体: [ ]  进入论坛
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Honeybees are hardwired to efficiently1 search the landscape enabling them to continue working for the greater good of their hives even when they are sick, according to new research co-authored by Queen Mary University of London (QMUL). Radar2 technology has been used to show for the first time that bees remain nimble and able to search and respond to their environment even when they have infections or viruses.
 
Honeybees tirelessly commute3 between rewarding flower patches and their hive, often hundreds or even thousands of metres apart. Their remarkable4 navigational skills rely on distinct landmarks5, such as trees or houses, which they very efficiently find and memorise6 on orientation7 flights. 
 
Experts fitted a transponder, a tiny dipole aerial much lighter8 than the nectar or pollen9 normally carried by the bee, to the thorax of the bee. Tracking each bee individually they would pick up a radar signal form the transponder showing where and how it was flying. 
 
Co-author Professor Juliet Osborne from University of Exeter, said: "We tracked the individual flying bees with a harmonic radar system. This involves attaching a very lightweight aerial to their back but it doesn't affect how fast they fly, or how much nectar they collect. It is still the only method for getting these really detailed10 data on where the bee flies."
 
Bees, like humans, can fall ill and getting around during periods of sickness can become very challenging. However, this study shows that even very sick bees are still able to optimally11 search their surroundings in so-called Lévy flight patterns. 
 
Lead author of the study, Dr Stephan Wolf from QMUL's School of Biological and Chemical Sciences, said: "The honeybees we observed had remarkably12 robust13 searching abilities, which indicate this might be hardwired in the bees rather than learned, making bees strong enough to withstand pathogens and possibly other stressors, and allowing them to still contribute to their colony by for example, foraging14 for food."


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1 efficiently ZuTzXQ     
adv.高效率地,有能力地
参考例句:
  • The worker oils the machine to operate it more efficiently.工人给机器上油以使机器运转更有效。
  • Local authorities have to learn to allocate resources efficiently.地方政府必须学会有效地分配资源。
2 radar kTUxx     
n.雷达,无线电探测器
参考例句:
  • They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。
  • Enemy ships were detected on the radar.敌舰的影像已显现在雷达上。
3 commute BXTyi     
vi.乘车上下班;vt.减(刑);折合;n.上下班交通
参考例句:
  • I spend much less time on my commute to work now.我现在工作的往返时间要节省好多。
  • Most office workers commute from the suburbs.很多公司的职员都是从郊外来上班的。
4 remarkable 8Vbx6     
adj.显著的,异常的,非凡的,值得注意的
参考例句:
  • She has made remarkable headway in her writing skills.她在写作技巧方面有了长足进步。
  • These cars are remarkable for the quietness of their engines.这些汽车因发动机没有噪音而不同凡响。
5 landmarks 746a744ae0fc201cc2f97ab777d21b8c     
n.陆标( landmark的名词复数 );目标;(标志重要阶段的)里程碑 ~ (in sth);有历史意义的建筑物(或遗址)
参考例句:
  • The book stands out as one of the notable landmarks in the progress of modern science. 这部著作是现代科学发展史上著名的里程碑之一。 来自《现代汉英综合大词典》
  • The baby was one of the big landmarks in our relationship. 孩子的出世是我们俩关系中的一个重要转折点。 来自辞典例句
6 memorise memorise     
vt.记住,熟记
参考例句:
  • An actor must be able to memorise his lines.演员须善于熟记台词。
  • I shall try to memorise all these phrases.我要熟记所有这些词组。
7 orientation IJ4xo     
n.方向,目标;熟悉,适应,情况介绍
参考例句:
  • Children need some orientation when they go to school.小孩子上学时需要适应。
  • The traveller found his orientation with the aid of a good map.旅行者借助一幅好地图得知自己的方向。
8 lighter 5pPzPR     
n.打火机,点火器;驳船;v.用驳船运送;light的比较级
参考例句:
  • The portrait was touched up so as to make it lighter.这张画经过润色,色调明朗了一些。
  • The lighter works off the car battery.引燃器利用汽车蓄电池打火。
9 pollen h1Uzz     
n.[植]花粉
参考例句:
  • Hummingbirds have discovered that nectar and pollen are very nutritious.蜂鸟发现花蜜和花粉是很有营养的。
  • He developed an allergy to pollen.他对花粉过敏。
10 detailed xuNzms     
adj.详细的,详尽的,极注意细节的,完全的
参考例句:
  • He had made a detailed study of the terrain.他对地形作了缜密的研究。
  • A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。
11 optimally 8f28d1e19f055043f464b21c2332a5a4     
最佳
参考例句:
  • In the classic script for a Cartel, the group sets a unified optimally exploiting price structure. 按照卡特尔的传统范本,这个集团制定出一个统一的最有利于剥削的价格结构。 来自辞典例句
  • RF power LDMOS with a trench drift region is optimally designed. 对射频功率LDMOS槽形漂移区的结构进行了优化设计。 来自互联网
12 remarkably EkPzTW     
ad.不同寻常地,相当地
参考例句:
  • I thought she was remarkably restrained in the circumstances. 我认为她在那种情况下非常克制。
  • He made a remarkably swift recovery. 他康复得相当快。
13 robust FXvx7     
adj.强壮的,强健的,粗野的,需要体力的,浓的
参考例句:
  • She is too tall and robust.她个子太高,身体太壮。
  • China wants to keep growth robust to reduce poverty and avoid job losses,AP commented.美联社评论道,中国希望保持经济强势增长,以减少贫困和失业状况。
14 foraging 6101d89c0b474e01becb6651ecd4f87f     
v.搜寻(食物),尤指动物觅(食)( forage的现在分词 );(尤指用手)搜寻(东西)
参考例句:
  • They eke out a precarious existence foraging in rubbish dumps. 他们靠在垃圾场捡垃圾维持着朝不保夕的生活。 来自《简明英汉词典》
  • The campers went foraging for wood to make a fire. 露营者去搜寻柴木点火。 来自辞典例句
TAG标签: flight sick honeybees
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