蜘蛛偶尔也会吃素
文章来源:未知 文章作者:enread 发布时间:2016-03-15 05:44 字体: [ ]  进入论坛
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Spiders are known to be the classic example of insectivorous predators2. Zoologists3 from the University of Basel, the US and UK have now been able to show that their diet is more diverse than expected. Their findings show that spiders like to spice up their menu with the occasional vegetarian4 meal. The Journal of Arachnology has published the results. Although traditionally viewed as a predator1 of insects, researchers have become increasingly aware that spiders are not exclusively insectivorous. Some spiders have been shown to enrich their diets by occasionally feasting on fish, frogs or even bats. A new study by Zoologists from the University of Basel, Brandeis University (US) and Cardiff University (UK) now shows evidence of spiders eating plant food as well. 
 
Plants as diet supplement
 
The researchers gathered and documented numerous examples from literature of spiders eating plant food. According to their systematic5 review, spiders from ten families have been reported feeding on a wide variety of different plant types such as trees, shrubs6, weeds, grasses, ferns or orchids7. They also show a diverse taste when it comes to the type of plant food: nectar, plant sap, honeydew, leaf tissue, pollen8 and seeds are all on the menu.
 
The most prominent group of spiders engaged in plant-eating are Salticidae - a diurnal9 spider family with characteristically large anterior10 median eyes. Salticidae were attributed with up to 60 percent of all plant-eating incidents documented in this study. As plant-dwelling, highly mobile foragers with excellent capability11 to detect suitable plant food, these spiders seems to be predestined to include some plant food in their diets.


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1 predator 11vza     
n.捕食其它动物的动物;捕食者
参考例句:
  • The final part of this chapter was devoted to a brief summary of predator species.本章最后部分简要总结了食肉动物。
  • Komodo dragon is the largest living lizard and a fearsome predator.科摩多龙是目前存在的最大蜥蜴,它是一种令人恐惧的捕食性动物。
2 predators 48b965855934a5395e409c1112d94f63     
n.食肉动物( predator的名词复数 );奴役他人者(尤指在财务或性关系方面)
参考例句:
  • birds and their earthbound predators 鸟和地面上捕食它们的动物
  • The eyes of predators are highly sensitive to the slightest movement. 捕食性动物的眼睛能感觉到最细小的动静。 来自《简明英汉词典》
3 zoologists f4b4b0086bc1410e2fe80f76b127c27e     
动物学家( zoologist的名词复数 )
参考例句:
  • Zoologists refer barnacles to Crustanceans. 动物学家把螺蛳归入甲壳类。
  • It is now a source of growing interest for chemists and zoologists as well. 它现在也是化学家和动物学家愈感兴趣的一个所在。
4 vegetarian 7KGzY     
n.素食者;adj.素食的
参考例句:
  • She got used gradually to the vegetarian diet.她逐渐习惯吃素食。
  • I didn't realize you were a vegetarian.我不知道你是个素食者。
5 systematic SqMwo     
adj.有系统的,有计划的,有方法的
参考例句:
  • The way he works isn't very systematic.他的工作不是很有条理。
  • The teacher made a systematic work of teaching.这个教师进行系统的教学工作。
6 shrubs b480276f8eea44e011d42320b17c3619     
灌木( shrub的名词复数 )
参考例句:
  • The gardener spent a complete morning in trimming those two shrubs. 园丁花了整个上午的时间修剪那两处灌木林。
  • These shrubs will need more light to produce flowering shoots. 这些灌木需要更多的光照才能抽出开花的新枝。
7 orchids 8f804ec07c1f943ef9230929314bd063     
n.兰花( orchid的名词复数 )
参考例句:
  • Wild flowers such as orchids and primroses are becoming rare. 兰花和报春花这类野花越来越稀少了。 来自《简明英汉词典》
  • She breeds orchids in her greenhouse. 她在温室里培育兰花。 来自《简明英汉词典》
8 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。
9 diurnal ws5xi     
adj.白天的,每日的
参考例句:
  • Kangaroos are diurnal animals.袋鼠是日间活动的动物。
  • Over water the diurnal change in refraction is likely to be small. 在水面上,折光的周日变化可能是很小的。
10 anterior mecyi     
adj.较早的;在前的
参考例句:
  • We've already finished the work anterior to the schedule.我们已经提前完成了工作。
  • The anterior part of a fish contains the head and gills.鱼的前部包括头和鳃。
11 capability JsGzZ     
n.能力;才能;(pl)可发展的能力或特性等
参考例句:
  • She has the capability to become a very fine actress.她有潜力成为杰出演员。
  • Organizing a whole department is beyond his capability.组织整个部门是他能力以外的事。
TAG标签: plants food spiders
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