灭绝

基本解释 (translations)

annihilation  ·  depopulation  ·  deracinate  ·  uncreate  ·  uprootal  ·  deracinated  ·  deracinates  ·  deracinating

词组短语

die out · become extinct · kill out

与灭绝相关的网络例句 [注：此内容来源于网络，仅供参考]

In China, conservation efforts have already failed to protect the Yangtze River dolphin, the first large aquatic mammal to go extinct since the Caribbean monk seal in the 1950s.

在中国，保护白鳍豚免于灭绝的努力已经失败。白鳍豚是继上世纪50年代加勒比僧海豹之后，首个灭绝的大型水生哺乳动物。

Based on the analysis on brachiopod fossils of the late middle Permian,the brachiopod extinction in Pre-Lopingian event of late middle Permian in this area can be divided into two sub screens: the first screen in the end of earlier Wushisanti Subage a...

通过川渝地区中二叠世晚期的腕足动物化石资料的研究，表明本地区中二叠世晚期的乐平世事件中腕足动物的灭绝可划分为前后2个不同的次级幕：早期的五十三梯亚期之末的第一幕和晚期的倒钻岩亚期之末的第二幕，且第二幕的灭绝规模要比第一幕更大。

Based on the analysis on brachiopod fossils of the late middle Permian, the brachiopod extinction in The Lopingian event of late middle Permian in this area can he divided into two sub screens: the first screen in the end of earlier Wushisanti Subage and the second screen in the end of later Daozuanyan Subage. The second screen's extinct scope is larger than the first screen's.

通过川渝地区中二叠世晚期的腕足动物化石资料的研究，表明本地区中二叠世晚期的乐平世事件中腕足动物的灭绝可划分为前后2个不同的次级幕：早期的五十三梯亚期之末的第一幕和晚期的倒钻岩亚期之末的第二幕，且第二幕的灭绝规模要比第一幕更大。

"This represents the first global extinction of a large vertebrate for over 50 years, only the fourth disappearance of an entire mammal family since AD 1500, and the first cetacean species to be driven to extinction by human activity."

这是50多年来第一大型脊椎动物的灭绝，也是自公元前1500年以来第四次整个哺乳动物家族的消亡，第一个因为人类活动灭绝的鲸类物种。

1Niche construction can lead to stable coexistence of diverse genotypes in spatially structured population, which supports a stable polymorphism even without heterozygote superiority.(2)With habitat deterioration, niche construction accelerates the formation of steady polymorphism and hence impedes the harmful influences of environment on the population, which might embody a life-history strategy of organism under the unfavorable environment.(3)Niche construction results in the coexistence with alternative polymorphism through genotype-environment feedback and limited gene flow.(4)The niche-constructing organism is an active force to alter its environment and hence the direction of natural selection in order to better survival.(5)Spatial dynamics and distribution pattern of metapopulation are profoundly influenced by time-lagged niche construction.(6)Metapopulation size can reach a fixed level in the recency effect and equal weighting of time lag but is statistical stability in primacy effect, which implies the primacy effect is most remarkable.(7)The increment in the relative weightingof each generation\' niche construction and the length of time lag are significant factors for system destabilization.(8)Moderate capacity of positive niche construction benefits the metapopulation persistence.(9)The narrowing of niche breadth can decrease the metapopulation size and thereby increase the extinction risk.(10)The coupled function of time lag and niche construction make the system oscillation and generate the spiral wave, spiral-broken and circular wave in heterogeneous habitat.The spatial distributions of metapopulation and resource content are complementary due to a phase lag of their both frequencies.(12)Metapopulation persistence with niche construction depends not only on the balance between colonization and extinction, but also on the balance between the ability of niche construction and natural dissipation of habitat.(13)Metapopula-tion can survive under certain condition when the percent of suitable patches in habitat is lower than the ration of extinction to colonization.(14)Two thresholds exist in the process of transition of habitat quality dynamics from unsuitable to suitable, which include the intensity of niche construction and the initial condition of system.(15)Metapopulation size is positive correlated with the ability of positive niche construction, which means that organism or population who has strongly positive influences on their environment plays an important role to maintain the available habitat.

通过上述几个方面的研究，主要得出以下15条结论：(1)生态位构建可使空间结构种群，甚至是在没有杂合子优势的条件下，形成多种可能的稳定基因型分布模式；(2)随着环境的破坏与恶化，种群的生态位构建作用加速其较早形成稳定多态以阻碍环境对种群的不利影响，解释了有机体在不利环境下的一种生活史对策；(3)生态位构建作用通过基因型—环境反馈机制及有限的基因交流导致基因型多态的稳定共存；(4)有机体的生态位构建作用是一种积极的动力改变环境进而改变其自然选择的方向；(5)生态位构建的时滞作用对集合种群动态和空间分布产生深刻影响；(6)集合种群大小在时滞的崭新效应和等权重效应下达到一固定值，而在首位效应下达到统计稳定，表明首位效应的影响最显著；(7)首位效应下生态位构建相对权重的增量和时滞的长度是影响系统不稳定性动态的关键因素；(8)适中的生态位构建强度有利于集合种群的续存；(9)生态位宽度变窄会减少集合种群的数量从而增加其灭绝风险；(10)时滞和生态位构建的双重作用使系统产生周期振荡，并在异质性环境中产生稳定的螺旋波，破碎的螺旋波和环形波三种分布模式；(11)集合种群与资源含量的空间分布因为相滞而互补；(12)具有生态位构建的集合种群续存不仅取决于侵占率与灭绝率之间的平衡，而且依赖于生态位构建能力同其生境的自然消耗速率之间的妥协；(13)当生境中适合侵占的斑块比例小于其侵占率与灭绝率之比时，生态位构建作用促使集合种群在一定条件下续存：(14)生境斑块的状态从不适合到适合转变过程中存在生态位构建强度和系统初始条件这两个阈值；(15)集合种群的大小同正生态位构建能力正相关，意味着对环境具有较强正作用的有机体对维持有效生境起积极作用。

Recently extinct species were more similar to living species than those from earlier eras, and as he had seen in South America, and William Clift had shown in Australia, fossils from recent geological periods resembled those still living in the same area.

最近灭绝的物种相比较早时期灭绝的那些物种与活的物种更类似，象他在南美洲所看到那样，象威廉·克利夫特展示的澳大利亚那样；最近地质时代的化石类似于仍然生活在同一地区的物种。

University of Texas, the United States and Australia counterparts from more than 70 years ago was officially announced extinction thylacine (also known as the Tasmanian tiger) extracted isolated gene implantation mouse embryo and show function, which is extinct types Gene the first time in living organisms on another function to prove that the extinction of animal DNA are likely to be activated.

美国得克萨斯大学与澳大利亚同行将从70多年前就被正式宣布灭绝的动物袋狼标本中分离提取出的基因植入老鼠胚胎并显现功能，这是已灭绝种类的基因首次在另一个活的有机体上发挥功能，证明灭绝动物的DNA有可能被激活。

My western comrades, how about not to mention the murderers in Tibet? That would be useful 20 years ago, but it is only sth disgusting now. Besides, as the posterity of those pirates and traders in human beings, don't you think it is a little forgetful for you to say that? In the past your forefathers made great efforts to massacre tens of millions of Indians to get the American continent. Oh wait, please do not mention the theory of 'variola depopulation'...even the black death was not strong enough to kill out your ancestors, how can variola do that? This theory is cheeky!

西方的同志们，不要再拿西藏的那些杀人犯来说事儿了，20年前也许还有点用，现在只能招人厌恶，再说了，身为强盗和人贩子的后代，你们说这些话有点数典忘祖，想当年，你们祖宗可是花了九牛二虎的力气灭绝了几千万印第安人，才把美洲给占了，哦对了，别在提所谓的'天花灭绝'论，想当年黑死病那么厉害都没把你们祖宗给灭绝了，天花算个鸟，这说法也忒无耻了一点。

Miller, a paleobiologist and professor of geology at the University of Cincinnati, says the new study is striking because it establishes a clear relationship between the tempo of mass extinction events and changes in sea level and sediment: Over the years, researchers have become fairly dismissive of the idea that marine mass extinctions like the great extinction of the Late Permian might be linked to sea-level declines, even though these declines are known to have occurred many times throughout the history of life.

&阿诺德一Miller表示，与古地质学教授在辛辛那提大学说，新研究是惊人的，因为它确立了明确的关系节奏的大规模灭绝事件和海平面变化和沉积物：&多年来，研究人员已成为相当不屑一顾的想法，海洋生物大灭绝一样伟大的濒临灭绝的晚二叠世可能与海平面下降，即使这些下降是众所周知的已经发生很多次整个生命的历史。清楚这项研究的关系文件将促使许多人重新考虑其以前的意见。

The baiji, or Chinese river dolphin—deemed "functionally extinct" by a team of scientists in December, 2006—was downgraded from "endangered" to "critically endangered" on the IUCN's 2007 Red List, released today.

白鳍豚又被称做中国江豚——2006年一个科学家组成的小组认为它们已&从机能上灭绝&——在今天发布的国际保护自然与自然资源联合会的红色清单上，它们已经从&濒临灭绝&降级到了&临界灭绝&

与灭绝相关的网络解释 [注：此内容来源于网络，仅供参考]

die out completely：完全灭绝

40. die out灭绝 | 41. die out completely完全灭绝 | 42. come to do 开始做某事

be endangered：濒临灭绝

31 There used to be... 过去常常有... | 32 be endangered 濒临灭绝 | endangered animals 濒临灭绝的动物

extinct：灭绝的

此是距离方法允许我们推论灭绝的(extinct)祖先的属性,在这个案例中是灭绝的(extinct)核苷序列. 距离方法(Distance Methods)需要在树建筑之前的在所有序列之间计算的成对距离. 一旦获得距离矩阵,就可以利用各种方法来计算树.

extinct：灭绝

可见,有必要把灭绝含义解释一下.灭绝(EXTINCT)是指当今世界任何地方都没有该种的成员存在时,就认定是灭绝即绝种. 根据"世界自然保护联盟"(IUCN)的物种等级标准:灭绝(EX)指在过去的50年中未在野外找到的物种,如渡渡鸟.

extinct species：灭绝品种; 灭绝物种

externalities 外部的影响; 外在因素 | extinct species 灭绝品种; 灭绝物种 | extinguishing agent 灭火剂

extinguish：灭绝,熄灭

extinct 灭种,熄灭了的 | extinguish 灭绝,熄灭 | extirpate 灭绝,连根拔起

extirpate：灭绝,连根拔起

extinguish 灭绝,熄灭 | extirpate 灭绝,连根拔起 | extol 颂扬

genocidal：种族灭绝/集团屠杀

genoblast /成熟性细胞/ | genocidal /种族灭绝/集团屠杀/ | genocide /种族灭绝/种族清洗/

genocidal：灭绝种族的

generic training;通用训练;; | genocidal;灭绝种族的; ; | genocide by attrition;缓慢种族灭绝; ;

genocide：种族灭绝

他认为当时没有文字来形容为了某种政治目的而执行的集体屠杀行为,因此发明了"种族灭绝"(Genocide)这个词. 根据历史记载,在第一次世界大战期间,有约150万亚美尼亚人受到奥斯曼土耳其帝国的惩罚. 但是土耳其坚决拒绝用"种族灭绝"来描述这一事件,