species extinction

The rate of species extinction already appears to be accelerating .

而物种灭绝的速率，也已经开始上升。

In this situation , man has to confront such problems as environmental protection and species extinction .

在这种专题化的栖居状况下，人们不得不面临着诸如环境污染、物种灭绝等生态问题。

Study on the Relations Between the Animal Species Extinction and Habitat Destruction

栖息地毁坏与动物物种灭绝关系的模拟研究

Responsive mechanism of species extinction to the habitat destruction at different time scales

物种灭绝对不同时间尺度人类活动的响应机制研究

Some potential orders of species extinction

物种灭绝的若干种可能的序

Biological invasion is causing the local species extinction , making the important reasons for the loss of biodiversity .

生物入侵是造成当地物种灭绝，使得生物多样性丧失的重要原因。

The construction of fungal spawn bank can be used to enlarge reproduction lest species extinction .

菌种库的建立，将野外采集到的健康、成熟、无病虫害、新鲜的子实体进行分离、制种，进行扩大繁殖，防治物种灭绝。

With accelerating of species extinction rate , conservation of biodiversity increasingly become a problem concerned by many scholars and experts .

随着物种灭绝速率的加快，生物多样性的保护日益成生态学界和人类社会共同关心关心的问题。

The view that species extinction will result in natural disasters is by no means a groundless exaggeration .

物种灭亡将导致生态灾难的观点绝不是夸大之辞。

Habitat loss and fragmentation is the primary cause of population , metapopulation and species extinction worldwide .

生境丧失和破碎化是生物多样性丧失的主要原因，并得到了广泛的关注。

Amphibian populations have dramatically declined globally over the past decades , including a number of species extinction .

近几十年来，全球范围内两栖类种群数量出现了较为快速的下降，部分物种甚至灭绝。

The main reasons for species extinction are pollution , farming and urban expansion , overfishing and hunting , the report said .

报告指出物种灭绝的主要原因是环境污染、农田开垦、城市扩张、过渡捕捞和打猎。

There are not only regional environmental pollution and ecological damage , but also the greenhouse effect , global warming , species extinction , sea pollution .

不仅发生了区域性的环境污染和大规模的生态破坏，而且出现了温室效应、全球气候变化、物种灭绝、越境污染、海洋污染等大范围的和全球性环境危机。

Some scientists predict that by2100 there will be50 % of the known species extinction !

有科学家预言，到2100年，将有50%的已知物种灭绝！

The speeds of habitat destruction and species extinction reach the climax during the past 200 years because of rapid human population growth and advances in technology .

在过去的200年里，生境毁坏和物种灭绝的速度已经达到了史上最大。

Now I 'm not saying we don 't have our set of problems -- climate crisis , species extinction , water and energy shortage -- we surely do .

我并不是说这些问题不存在－气候危机，物种灭绝，水资源和能源短缺的情况都确实发生了。

Butchart said that , since 2002 , the risk of species extinction has actually increased , not decreased , along with pressures such as habitat destruction and climate change .

布莱德说，自2002年来，栖息地物毁坏和气候变化的压力增加了物种灭绝的风险，而非减少。

This fragmentation is the main factor resulting in biodiversity loss and species extinction and threatening the existence of living creatures , and influences the gene flow among and within animal populations .

栖息地片断化是导致生物多样性丧失和物种绝灭的主要因素，也是威胁自然界生物生存的重要因素之一。

Since entering the industrial society , environmental problems , such as the global air quality , soil degradation , greenhouse effect , acid rain , part of the species extinction are more and more serious .

进入工业化社会以来，全球空气质量下降、土壤退化、温室效应、酸雨、部分物种濒临灭绝等环境问题日益严重。

Environmental issues has long been the focus of countries in the world , global warming , energy shortages , air pollution , population growth and species extinction threatening the human living environment all the time .

环境问题一直以来是世界各国普遍关注的焦点，全球变暖、能源匮乏、大气污染、人口膨胀和物种灭绝时时刻刻威胁着人类的生存环境。

The equilibrium theory of island biogeography has little contribution to conservation practice because empirical evidence does not support it and the design based this theory is not related to the central problem of species extinction population viability .

岛屿生物地理学的平衡理论的设计原则未涉及到物种绝灭的中心问题&种群生存力，所以该理论对保护实践贡献较小。

The contents of diversity of living things , our country 's actuality and the reasons of the species extinction , illustrate that living things are the live material that humankind can get directly from the nature .

生物多样性包括的内容，我国的现状，物种灭绝原因，说明自然界中的生物是人类可直接获取的生活物质。

Forests are being bulldozed to make more room for factory farms and feed crops to feed farmed animals , and this destruction causes soil erosion and contributes to species extinction and habitat loss .

为了腾出更多的土地给工业化农场和耕作粮食作为饲料给牲畜食用，森林不断被破坏，这导致土壤盐碱化，物种灭绝和动物栖息地丧失。

In order to reverse the negative situation in which traditional theories and practices can hardly stop the trend of species extinction , a holistic strategy for biodiversity conservation at landscape and regional levels is raised and underpinned by GAP analysis approach .

为扭转传统保护思路难以适应现代生物多样性保护需求这一被动现状，人们开始采用一种基于景观和区域尺度的整体保护策略，GAP分析就是实现这种保护策略的主要支撑技术。

Sandstorms is a kind of calamity weather interacted by both winds and sands , it 's formation is closely concerned with many factors , including the global greenhouse effects , forest decreased quickly , vegetation destroyed , species extinction and abnormal climate .

沙尘暴是一种风与沙相互作用的灾害性天气，它的形成与地球温室效应、厄尔尼诺现象、森林锐减、植被破坏、物种灭绝、气候异常等因素有着不可分割的关系。

The theory and models of population viability analysis and minimum viable population are used to study the problem of species extinction and the viability of ecosystems can be determined by using the viability of keystone species , thus they are theoretical foundation of the nature reserve design .

种群生存力分析和最小可存活种群的理论及模型用于物种绝灭问题的研究，同时关键种的生存力用于确定生态系统的生存力，因而该理论和模型成为自然保护区设计的理论基础。

Therefore , the order of species extinction is influenced not only by the dispersal abilities , but also by the different speeds of habitat destruction and the structure of metapopulation . Therefore , to preserve different species , we should exploit different habitat at different rates .

因此，物种灭绝序不只是受竞争-侵占均衡机制的影响，还受不同时间尺度（不同速率）栖息地毁坏的影响，以及集合种群结构的影响。

While human changes to the enironment cause conseration biologists to worry about species extinction , Yale biologists are reersing the logic by trying to trap iruses in habitats that force their extinction , according to a report in ecology letters .

根据生态学通讯上的报告，当人类改变环境引起生物学家担心物种灭绝时，耶鲁生物学家正在反向思维设法诱骗栖息地病毒促使它们灭绝。

The society was set up to preserve endangered species from extinction .

成立这个协会是为了保护濒危物种不致灭绝。

Hundreds of tree species face extinction

许许多多树种濒临灭绝。