2013年加州科学院发现91种新物种
文章来源:未知 文章作者:enread 发布时间:2013-12-24 07:09 字体: [ ]  进入论坛
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In 2013, researchers at the California Academy of Sciences discovered 91 new plant and animal species and two new genera, enriching our understanding of the complex web of life on Earth and strengthening our ability to make informed conservation decisions. The new species, previously1 unknown to science, include 38 different ants, 12 fishes, 14 plants, eight beetles2, two spiders, one reptile4, and one amphibian5. In addition, Academy scientists discovered a new genus of beetle3 and a previously unidentified genus of sea fan.
 
More than a dozen Academy scientists along with several dozen international collaborators described the newly discovered plants and animals. Proving that there are still plenty of places to explore and things to discover on Earth, the scientists ventured into remote jungles and descended6 to the bottom of the sea, looked in their own backyards (California) and explored the other side of the world (Africa). Their results, published in more than 30 scientific papers, help advance the Academy's research into two of the most important scientific questions of our time: "How did life evolve?" and "How will it persist?" "Our best estimates are that we have discovered and described less than 10 percent of the life forms on Earth," said Dr. Terry Gosliner, Dean of Science and Research Collections at the Academy. "As we race to discover the other 90 percent of the species that make up the tapestry7 of life, we are focusing our efforts on global biodiversity hotspots -- places that are both unusually diverse and highly threatened, including many tropical forests, coral reef communities and our own backyard, California." Below are a few highlights among the 91 species described by the Academy this year. 
 
Madagascar's list of endemic species grows 
 
The islands of the southwestern Indian Ocean, especially Madagascar, are composed of extremely fragmented natural habitats and are renowned8 for hosting many endemic species -- those that cannot be found anywhere else on Earth. This is a place the California Academy of Sciences considers a global biodiversity hotspot. However, Madagascar's biodiversity is increasingly threatened, adding new urgency to the research being conducted on the island. This year, Academy scientists were able to identify 38 previously unknown ant species, seven new plants and two new spider species from Madagascar.
 
Academy scientist Brian Fisher, an entomologist who specializes in the study of ants, calls them "the glue that holds ecosystems9 together." "Ants are one of the most important members of ecosystems," says Fisher. "They turn over more soil than earthworms." But they're also some of the most overlooked, he says. "If they were bigger, they would be the most studied type of organism, but people don't see them."
 
Now, Fisher and his team are able to look for these small creatures in a new way. Recently, satellite companies and engineers from Google have provided Academy researchers with high-resolution satellite images of some of the least explored areas of Madagascar. Equipped with a GPS-enabled tablet loaded with customized software and recent high-res images, Fisher and his colleagues can identify which patches of forest are most likely to contain new species of ants based on their elevation10, vegetation and adjacent habitats.
 
The work being done by Academy scientists is helping11 to correct a long-standing bias12 in habitat conservation. "If you base conservation on just vertebrates," Fisher says, "it leads you to conclude that only the largest forests are important. Ants and other insects provide a better map of true biodiversity."


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1 previously bkzzzC     
adv.以前,先前(地)
参考例句:
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
2 beetles e572d93f9d42d4fe5aa8171c39c86a16     
n.甲虫( beetle的名词复数 )
参考例句:
  • Beetles bury pellets of dung and lay their eggs within them. 甲壳虫把粪粒埋起来,然后在里面产卵。 来自《简明英汉词典》
  • This kind of beetles have hard shell. 这类甲虫有坚硬的外壳。 来自《现代汉英综合大词典》
3 beetle QudzV     
n.甲虫,近视眼的人
参考例句:
  • A firefly is a type of beetle.萤火虫是一种甲虫。
  • He saw a shiny green beetle on a leaf.我看见树叶上有一只闪闪发光的绿色甲虫。
4 reptile xBiz7     
n.爬行动物;两栖动物
参考例句:
  • The frog is not a true reptile.青蛙并非真正的爬行动物。
  • So you should not be surprised to see someone keep a reptile as a pet.所以,你不必惊奇有人养了一只爬行动物作为宠物。
5 amphibian mwHzx     
n.两栖动物;水陆两用飞机和车辆
参考例句:
  • The frog is an amphibian,which means it can live on land and in water.青蛙属于两栖动物,也就是说它既能生活在陆地上也能生活在水里。
  • Amphibian is an important specie in ecosystem and has profound meaning in the ecotoxicology evaluation.两栖类是生态系统中的重要物种,并且对环境毒理评价有着深远意义。
6 descended guQzoy     
a.为...后裔的,出身于...的
参考例句:
  • A mood of melancholy descended on us. 一种悲伤的情绪袭上我们的心头。
  • The path descended the hill in a series of zigzags. 小路呈连续的之字形顺着山坡蜿蜒而下。
7 tapestry 7qRy8     
n.挂毯,丰富多采的画面?
参考例句:
  • How about this artistic tapestry and this cloisonne vase?这件艺术挂毯和这个景泰蓝花瓶怎么样?
  • The wall of my living room was hung with a tapestry.我的起居室的墙上挂着一块壁毯。
8 renowned okSzVe     
adj.著名的,有名望的,声誉鹊起的
参考例句:
  • He is one of the world's renowned writers.他是世界上知名的作家之一。
  • She is renowned for her advocacy of human rights.她以提倡人权而闻名。
9 ecosystems 94cb0e40a815bea1157ac8aab9a5380d     
n.生态系统( ecosystem的名词复数 )
参考例句:
  • There are highly sensitive and delicately balanced ecosystems in the forest. 森林里有高度敏感、灵敏平衡的各种生态系统。 来自《简明英汉词典》
  • Madagascar's ecosystems range from rainforest to semi-desert. 马达加斯加生态系统类型多样,从雨林到半荒漠等不一而足。 来自辞典例句
10 elevation bqsxH     
n.高度;海拔;高地;上升;提高
参考例句:
  • The house is at an elevation of 2,000 metres.那幢房子位于海拔两千米的高处。
  • His elevation to the position of General Manager was announced yesterday.昨天宣布他晋升总经理职位。
11 helping 2rGzDc     
n.食物的一份&adj.帮助人的,辅助的
参考例句:
  • The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
  • By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。
12 bias 0QByQ     
n.偏见,偏心,偏袒;vt.使有偏见
参考例句:
  • They are accusing the teacher of political bias in his marking.他们在指控那名教师打分数有政治偏见。
  • He had a bias toward the plan.他对这项计划有偏见。
TAG标签: species earth Academy
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