Ⅰ 生物多样性英语作文
在学习、工作、生活中，大家总免不了要接触或使用作文吧，作文是人们以书面形式表情达意的言语活动。那么问题来了，到底应如何写一篇优秀的作文呢？以下是我为大家收集的生物多样性英语作文，希望能够帮助到大家。
Animals are natural resources that people have wasted all through our history. Animals have been killed for their fur and feathers, for food, for sport, and simply because they were in the way. Thousands of kinds of animals have disappeared from the earth forever. Hundreds more are on the danger list today. About 170 kinds in the United States alone are considered in danger.
Why should people care? Because we need animals, and because once they are gone, there will never be any more. Animals are more than just beautiful or interesting. They are more than just a source of food. Every animal has its place in the balance of nature. Destroying one kind of animal can create many problems. For example, when farmers killed large numbers of hawks, the farmers' stores of corn and grain were destroyed by rats and mice. Why? Because hawks eat rats and mice, with no hawks to keep down their numbers, the rats and mice multiplied quickly.
Luckily, some people are working to help save the animals. Some groups raise money to let people know about the problem. And they try to get the governments to pass laws protecting animals in danger. Quite a few countries have passed laws. These laws forbid the killing of any animal or plant on the danger list. Slowly, the number of some animals in danger is growing.
动物是自然资源，在整个历史过程中，人类一直在糟蹋着这种资源。人们杀死动物，获得它们的皮毛，把它们当作食物或运动方式，或者只是因为它们碍事。成千上万种动物已经从这个地球上永远地消失了。现在另外上百种动物也上了濒危动物名单。仅荚国大概就有170种被认为处于危险当中。
为什么人们应该感到担忧呢？因为我们需要动物，因为它们一旦消失，就永远不会再出现。动物不仅仅是漂亮或有趣。它们不仅仅是人类的食物来源。在维持自然平衡中，每种动物都有其作用。毁灭某种动物会导致许多问题。比如，农民们如果杀死为数众多的鹰，他们谷物和粮食的仓库就会受到老鼠和田鼠的破坏。为什么？因为鹰吃鼠类，没有鹰控制它们的数量，鼠类就会迅速繁殖。
幸运的是，有些人正在努力帮助拯救这些动物。有些组织筹钱以便人们了解这一问题。他们也努力使政府通过保护濒危动物的法律。很多国家已经通过了法律。这些法律禁止杀害濒危名单上的动植物。某些濒危动物的数目正在慢慢地不断上升。
In the vast ocean live many creatures with great intellectual and physical capacities. Dolphin is one of those great creatures, whose capacities to think and move at an astounding rate puzzle those who study their behaviors, Dolphins possess something that makes them different from all the other sea creatures. It is not strength or speed but the size of their brains. Dolphin' s brain is almost the same size as that found in the human head. They live for a ling time.
Dolphins' babies are born in the water. They can grow up to three and a half meters long.
Dolopins use sound to help them find their way, look for their food and talk with each other. Sound is just like their eyes and mouths.
在浩瀚的海洋中生活的许多智力发达、身体强健的动物.海豚是那些伟大的人之一,他们的思考能力和行动以惊人的速度让那些研究他们的行为,海豚拥有一些使他们不同于其他所有的海洋生物.它不是力量或速度,但他们大脑的大小.海豚的大脑几乎是相同的大小,在人类头上的发现.它们寿命很长.
海豚宝宝出世在水.它们能长大到三米半长.
海豚利用声音来帮助他们找到他们的路,寻找食物和交谈.声音就像它们的眼睛和嘴一样.
Blue whale is the world's largest animal, the body was blue-gray. Now catch the largest blue whale to the site in the Atlantic near the Falklands. This 33.5 m long blue whale, weighing 195 tons that is much greater than its tongue elephant weighing about 3 tons of its 700 kg heart weight, lung weight 1500 kg, the total blood weight of about 8 tons to 9 tons, intestines are half a mile long. Such a large body can only live in the vast ocean. Whale is an outstanding singer in water, "singer" When push "humpback." In 1971, biologists from the United States under the sea seeking the "humpback" voice is analyzed and found a very special sound signals. The original of these "humpback" issued a series of beautiful sounds, sound mildly varying tone. These sounds continued for 30 minutes, then sing from scratch, from the cadence, to judge the degree of light sweet Man, can travel to sea whales never lost. Usefulness of the people all the whales is very good, a lot of dead whales now, so that human beings are to be discarded, we need to protect the whales, so they continue to multiply Health habitat. Let people according to their benefits, create more advanced equipment, whale is a human friend. Why touch? Yes, I have here a bit information: whales, sea travel will not get lost all use of the whale is a very good person, and now a large number of dead whales, so that human beings are discarded, we need to protect whales, so that they continue to suffer from habitat reproction. Let people according to their benefits, create more advanced equipment, whale is a human friend. Whales every day to sleep. Sleep, always a few heads together, and if there are sound, they scattered and went away. Whales can live for decades or a century.
蓝鲸是世界上最大的动物，全身呈蓝灰色。目前捕到的最大的蓝鲸地点在大西洋的福克兰群岛附近。这条蓝鲸长33.5米，体重195吨这远比大象大得多了它的舌头重约3吨它的心脏重700公斤，肺重1500公斤,血液总重量约为8吨～9吨,肠子有半里路长。这样大的躯体只能生活在浩瀚的海洋中。鲸是歌唱家 水中杰出的“歌唱家”当推“座头鲸”。1971年，美国生物学家对从海上寻下的“座头鲸”发声进行了分析，发现了极其特殊的声音信号。原来这些“座头鲸”发出一连串优美动听、调子不一的婉转声。这些声音延续了30分钟，然后从头唱起，从抑扬顿挫、轻曼悦耳的程度判断，可鲸遨游大海时从来不会迷失方向。鲸的种种用处对人是很有好处的，现在鲸大量的`死亡，使人类也走向灭亡，我们要保护鲸类，让它们继续生栖繁衍。让人们根据它们的好处，制造出更先进的仪器，鲸是人类的朋友。 为什摸？不错，我这里还有一点资料： 鲸遨游大海不会迷航 鲸的种种用处对人是很有好处的，现在鲸大量的死亡，使人类也走向灭亡，我们要保护鲸类，让它们继续生栖繁衍。让人们根据它们的好处，制造出更先进的仪器，鲸是人类的朋友。 鲸每天都睡觉.睡觉时,总是几头聚在一起,要是有响声,它们就四散游开. 鲸可以活几十年或一百年.
Living things react
You and all organisms live in an environment. An environment is made up of
everything that surrounds an organism. It can include air, the water, the soil, and even
other organisms. An organism responds to changes in its environment. When an organism responds to a change, it reacts in certain ways. All living things respond in some way. Have you ever noticed how plants and insects respond to light? Plants bed toward light. Insects fly toward light. Living things also respond in other way. The leaves on some trees respond to a change in season. In autumn, they change colors and then fall off the branches.
Animals also respond to a change in season. Squirrels save nuts for the winter. Bears sleep
through the winter in a cave. You respond to your environment in many ways, too. You
may shiver if you are cold. What other ways do you respond to changes in your
environment?
你和所有的生物生活在同一环境中。环境是由身边的一切组成的有机体。可以包括空气，水，土壤，甚至其他生物。生物体以某种特定的方式，对其环境所发生的变化做出反应。你有没有注意到，植物和昆虫对光有反应？植物向光生长，昆虫迎光飞舞。生物也会对其他东西产生反应。就像有的树叶会依据季节不同而呈现不同状态。在秋天，它们颜色变黄且脱落。动物也不例外。松鼠为过冬储存坚果。熊冬天睡在洞穴中。人对环境的反应是多形式的，就像冷的时候会颤抖。那么你对环境的变化会有怎样的回应呢？
Animals are our friends.But how to protect them？ government is working to protect all animals in danger，and has made lots of plans to save animals.On the other hand， we shouldn’t eat wild animals.We should keep them away from our dinner. That way，there will not be wild animals on sale. I think the hunters and killers will bee fewer and fewer.
Last， we should protect the environment.We should stop people from cutting trees down. Without trees， wild animals will lose their home. And we will lose our animal friends. All of us should try our best to protect animals.
We need to protect animals better We should give them fresh water to drink.We should make the forests bigger for animals in danger to live in.We should advice people not to kill animals beacause they are our friends！
I am a student from Xinhua Middle School in Chongqing，China. Informed that you have a vacancy for a student to serve as the spokesman for animals, I cannot resist my inner excitement,hoping to seize the opportunity to do something for animals .
In my mind，nothing can delight me so much as caring for animals. Wherever I go and whatever I do, I usually keep in mind that animals are angels from the heaven, which bring us endless fort and pleasure. I have been a panda lover since my childhood. Panda is so lovely that brings fun to people and they are regarded as the treasure of our country. Unfortunately，such a rare species is now faced with the danger of being extinct.What I am eager to do is to raise people's awareness of animal protection and appeal to more people to care for our earth panies.
It was a fine day today and the sun was bright. I visited Beijing Zoo with my classmate, He Song. The animals were so interesting that all the people loved them. When a bear asked for some food by waving its ann, a visitor threw something to it. At once I went up to him and said without thinking,'Don't do that. It's bad for it. If you really love them, take good care of them.' His face turned red and answered he wouldn't do that again.
上周，我看了一部令人印象十分深刻的关于熊猫的纪录片。一位教授在20年代80年代早期就开始研究熊猫，他到野外生活，多年寻找野生大熊猫的踪迹。结果，他发现，正是人类，让这些可爱的动物面临灭绝。当时，许多人认为，大熊猫变少是因为新生儿的低出生率。这是不正确。人们为了利益砍伐树木，熊猫失去了家园，也没有食物吃。多亏了这些有价值的数据，政府采取了政策去保护它们。所以此刻，大熊猫的数量正在增加。人们意识到保护环境的重要性，这也是最好的方法来保护野生动物，因为它们是大自然不可或缺的一部分。
Last week，I saw a very impressive documentary about panda A professorstudied panda in the early 1980s went to the wild life and kept trace of wildgiant panda for many years As a result，he found that it was human being thatmade these lovely animals die out At that time，many people believed that giantpanda became less because of the low rate of newborn babies But it was nottrue People cut trees for making profit at that time Panda lose homeland andthey lacked of food Thanks to these valuable data，the government took thepolicy to protect the animals So today，the number of giant panda isincreasing People realize the importance of protecting the environment and itis the best way to protect wild animals，they are the indispensable part of thenature
The giant panda is known as the national treasure of China. The panda was a kind of ordinary animal in China long ago. However， for some reasons， too many of them have been killed. So the number of them is falling quickly.
At present people are taking an important measure to save pandas. People want to find a home for them， and recently， they have set up a nature park for them in Sichuan Province，which is called "Pandas' Home. "There pandas can enjoy their life happily. There is a bamboo forest near the Pandas' Home. So the pandas can find bamboos easily which they like to eat very much.
Because pandas are well protected now， the number of them is increasing every year We hope that one day we will have enough pandas to set them free and let them live in the wild again.
Pandas are good friends of man. Man should try to protect them and let them live in the way they like！
my favourite animal is tortoise. tortoise walk not fast. but i like the tortoise. why? because, tortoise is a cute animal. it have a short tail and a four short foot. it have a little head and a hard shell. they are forty-five little and cute tortoise in my home. they like to play in the water. when they afraid some thing. they wall run fast. they like to eat the fish. i often buy some small fish to them to eat. they can catch the fish fast. first, they fake sleep. when the fish swim near they mouth. they catch the fish fast and bit the fish head. so, the fish die. they can eat the fish. in winter. they like to sleep in the sand. when they sleep, they don’t eat any food.because they wall hibernation. but, when they are thirsty. they come out of the sand. so, we must give water to them to drink.
i love the tortoise. i hate the eagle. because, the eagle often eat
the tortoise with it sharp mouth.my favourite animal is tortoise.
Among all the animalsI like rabbit very much.
When I was a little girlkeep a rabbit by myselfit was very lovely with a pair of long earsand two red round eyesthe hair of it was white.After school I fed it everydayit liked vegetables and carrots.so when I gave them to itthe rabbit always jumpped happilylooked at me by its red eyesseemed to tell me it was very hungry.So I love the rabbit !
There are more and more endangered animals at present,so how to protect them has been our task of top priority . It's wrong for people to hunt animals for their meat and feather,for they are our good friends.We should protect them instead of killing them.Giant pandas,which are one of the endangered animals,live in the forests and live on bamboo lealves.They can just live safely in the natural protection zones.We should stop animal and protect them.
Elephant is the largest animal on land today. It weights some ninety kilograms and is about one metre high when born. when it is 12 years old,it studs over three meters and does not grow any more.
Elephant is usually grey in color,having a long trunk with large ivory tusks protruding from each side of its mouth. Usually moving in groups and caring for each other,Elephant is know to be a very and gentle creamre.
For many years people have used the strength of these poweful animals to move trees and heavy logs. Elephant has been and is a vital tool for people to do many things that would normally be imposs—ible. Elephant is and will continue to be one of the greatest creatures man has ever come into contact with. Its size. beauty,and power willforever be useful to man.
Children，you grabbed the small tadpoles right，you must know that tadpole grew up to bee small frog，the frog can eat insects，so the frog is our human's good friends. We should protect it，not hurt it. But some hotels are also sold the frog meat？Once，dad and his friends took me to dinner. A waiter said："you see，this is we store the launch of new specials，stir flogs ball". "Chicken is what ah？" I curiously ask，"chicken is the frog." The waiter said，with a smile. I was very angry，because they hurt our good friends—frog！Another thing，he makes a big inspiration. One day，when I finish school，saw a man at the school gate at little chicks must sell，and I will have mercy on them. Because the little chicks must first came to this world，away from the mother，away from the mother love and mother warm embrace，and this is what they faced starved to death，the risk of freezing to death. At that time I thought：we humans are so happy！When you see here，did you see to protect our human friends—animals！
Anima is are our friends. Although some of them are very dangerous. But I think we should help them.
Animals are important for every people. No one can live without animals. So, we should do someting for them.
We can't kill them too many, we should keep the balanced nature. Don't damage any animals.
And if you have a pet, than, please feed it well.
Animals are friendly to us, if we are friendly to them. Animals will be our friends forever.
favourite animal is the panda,is our"national treasure",bacause pandas nive,lovable and lively,it was very likr it. panda is an ancient animal,is a zoologist called "living fossile " long ago there were many pandas in china,panda bamoo living area has large flowers,dead,threatening the survival of giant pandas. The whole world is extremely concerned about the rare giant panda rescue and transfer work.
e to the destruction of the natural balance,climate warming,fewer and fewer panda. Panda is one of endangered animals,now only found in China,sichuan,shaanxi,Gansu,people began to conserve this endangered species. Today,the number of pandas has increased,but there is still a long way to go.
Care for animals,is to protect human,we should be animals as man's best friend,to care,to protect them. Protection of animals is a ty of each person,let us work together to protect the giant pandas,giving them a good home.
my favorite animals are swans.they are white.they can swim very well.I think they look like a beautiful girl in a white dress.they have a pair of wings and they can also fly well.I believe they are angles from the sky.they bring us love and make us happy.they are always friendly to us.
we can't hurt them,because they are our friend.I love them！I like dogs,too.they are not beautiful,but they are the best friends.they keep the thieves away.Dogs have the best listening and eyes.
they can hear in the nosiy,see in the dark.If we are in danger,they will help us at once.And they don't mind their lives.so,I love them.
Many animals are in danger of dying out.
As is shown in the chart, we can see the number of animal species decreases faster and faster and this trend will continue.
From 1980 to 20xx, at least 1 million animal species have disappeared. Worse still, more and more wild animals are in great danger.
It is not a piece of sensational news; it is a fact, a harsh reality. Unfortunately, we may not see these animals in the near future.
Ⅱ 关于生物多样性的英语作文
Wild animals have no place in the 21st century. Some people think that preventing these wild animals from dying out is a waste of resource. To what extent do you agree or disagree with this opinion.
Biological diversity has never been so threatened as it is today as a result of the process of human civilization. The various forms of pressure created by human activity have destroyed natural balance, led to the deterioration of natural habitats, genetic erosion and the rarity, even disappearance, of a number of plant and animal species.
As the pace of civilization accelerates, more people, taking more space, needing to use more natural resources, engaging in ever-growing consumption, impose severe deterioration on the habitat of animals. An increasing number of people come to realize that the disappearance of animals will result in serious threat to the equilibrium of ecosystem. Simply put, the extinction of hawks, a rat-eating bird seen in many regions, will result in the rapid propagation of rats. And rats, further, will destroy the prairies and threaten the other animals like gazelles, zebras and others, who live on grass and green lands. The coexistence of animals and human beings creates perfect harmony and brings about the vividness to our planet.
It is hard to imagine what our world would be like without animals. Sociologists also point out that the disappearance of animals can cause social and economic problems. Animal trade, as a supporting sector to the world economy, was very active before. However, the situation is beyond control since animal trade is very profitable and alluring. Many species cannot escape the adversity of being killed.
Certainly, our diet cannot be without meat. There are living stocks, which can provide us with sufficient and nutritious proce. Therefore, we need not to resort to wild animals, especially the endangered ones. To protect animals is to protect our living environment. Every indivial should join efforts to keep the diversity of animals.
Ⅲ 生物多样性 用英语咋说
原始的表达方式是：Biological diversity, 由托马斯·拉夫卓伊(Thomas Lovejoy)于1980年提出；而biodiversity这个组合词则由昆虫学家威尔逊(E. O. Wilson)于1986年提出的。目前两者都有使用。
Ⅳ 热门单词："生物多样性"用英语怎么说
biodiversity
英 [ˌbaɪəʊdaɪˈvɜ:səti] 美 [ˌbaɪoʊdaɪˈvɜ:rsəti]
n.
生物多类状态，生物多样性
词汇难度：IELTS
双语例句：
Their commitment was only to maintain the extent of forests, not their biodiversity.
他们仅承诺维持现有森林面积，并不保证林区生物的多样性。
Ⅳ 英语单词博览006 生物多样性 Biodiversity
biodiversity [ˌoudiˈvə:səti]（n.生物多样性）＝bio＋diversity。bio词根“生命”（如biology生物学），diversity多样性（见下）。
diversity [diˈvə:səti]（n.多样性）＝di＋vers＋ity。di-前缀“分开”(＝dis)，vers词根“转”(＝turn)，-ity名词后缀。“转变后形成差异”→多样性。
diverse [daiˈvə:s]（a.多样的；不同的）＝di前缀“分开”＋vers词根“转”＋e后缀。
diversify [diˈvə:sifai]（v.多样化）＝divers(e)＋ify使…化。
divert [diˈvə:t]（v.转移；改道）＝di分开＋vert词根“转”。注意vert＝vers（辅音变换）。
diverting [diˈvə:tiŋ]（a.有趣的）＝divert＋ing形容词后缀。“能转移注意力的”。
diversion [diˈvə:ʃn]（n.转移；改道；娱乐）＝di分开＋vers转＋ion名词后缀。
divorce [diˈvɔ:s]（v.n.离婚）＝di分开＋vorc词根“转”＋e。“夫妻转身分开”。注意vorc＝vers（元音替换＋辅音变换）。★如何区别divorce和diverse？可把divorce中的o看作指环→“离婚”就是不要戒指了。※Divorce—a tragedy that after a while feels suspiciously like relief.离婚——一场悲剧，片刻之后又似乎觉得像是一种解脱。
avert [əˈvə:t]（v.转移；避免）＝a前缀“离开”(＝away)＋vert转。
averse [əˈvə:s]（a.厌恶的）＝a离开＋vers转＋e。“把脸转开”→厌恶的。
aversion [əˈvə:ʃn]（n.厌恶）＝avers(e)＋ion名词后缀。厌恶疗法（aversion therapy）是一种心理治疗方法。
convert [kənˈvə:t]（v.转变；皈依 n.皈依者）＝con前缀“完全”＋vert转。“完全转变”→皈依。※The ability to convert ideas to things is the secret of outward success.将想法转化为行动的能力是取得明显成功的秘诀。
conversion [kənˈvə:ʃn]（n.转变；皈依）＝con完全＋vers转＋ion名词后缀。
reverse [riˈvə:s]（v.反转 a.反转的 n.反面）＝re前缀“反”(=back)＋vers转＋e。这个词包括三个词性，某些词汇书上一大堆中文解释，而我用七个汉字就搞定了，这就是实力啊！^_^
读网络知识, 记英语单词
Ⅵ 急求一篇关于生物多样性减少的英语作文
这是我的一个presentation的讲稿 for community ecology 不知道适不适合你，是以一个文章为背景的 the bees are back in town (The Economist on March 7th 2009)
At the end of February, the almond flowers were competing for the pollinators in the orchards of California’s central valley. The flowers are so delicate to attract the pollinators which are mainly honeybees, because of the shortage of honeybees in California. The shortage of the honeybees called colony collapse disorder. The colony collapse disorder is described as a phenomenon that large numbers of honeybees are dead in the winter. The causes of colony collapse disorder are unclear. There are some possible causes of the colony collapse disorder, such as virus, parasites and fungus. A study from Cox-foster et. al. showing that the Israeli acute paralysis virus is closely corresponding to the colony collapse disorder by molecular analysis of pathogen DNA like 16s DNA which are highly conserved. For instance, DNA sequencing and NCBI blast were used to identify the species of pathogen on the honeybees. Beside the Israeli acute paralysis virus, parasitic mites can also lead to the colony collapse disorder. But further study is showing that the origin of the colony collapse disorder is the poor food nutrients.
没完 答案补充 实在是发不上去，你要是要和我联系吧
Ⅶ 生物多样性用英语怎么说
biodiversity
n.英[,əudai'və:səti]
美[,baɪodɪ'vɚrsɪti]
生物多样性
生物多样性biodiversity是指一定范围内多种多样活的有机体(动物、植物、微生物)
有规律地结合所构成稳定的生态综合体。
Ⅷ 写生物多样性的作文要求1000字以上，最好是原版不要百度的！那位学霸大神能帮帮我谢谢
生物多样性biodiversity是指一定范围内多种多样活的有机体（动物、植物、微生物） 有规律地结合所构成稳定的生态综合体。 这种多样包括动物、植物、微生物的物种多样性，物种的遗传与变异的多样性及生态系统的多样性。其中，物种的多样性是生物多样性的关键，它既体现了生物之间及环境之间的复杂关系，又体现了生物资源的丰富性。 我们目前已经知道大约有200万种生物，这些形形色色的生物物种就构成了生物物种的多样性。 生物多样性是生物及其与环境形成的生态复合体以及与此相关的各种生态过程的总和，由遗传（基因 ）多样性，物种多样性和生态系统多样性等部分组成。遗传（基因）多样性是指生物体内决定性状的遗传因子及其组合的多样性。物种多样性是生物多样性在物种上的表现形式，可分为区域物种多样性和群落物种（生态）多样性。生态系统多样性是指生物圈内生境、生物群落和生态过程的多样性。遗传（基因）多样性和物种多样性是生物多样性研究的基础，生态系统多样性是生物多样性研究的重点。
动物
兽类是动物中形态结构最高等，生理机能最完善，适应性最强的动物类群。兽类中，华南虎已经濒临灭绝，野生麋鹿已经灭绝。
南极和北极位于地球的两端，终年冰雪覆盖，自然环境极其恶劣，但这里并不是生命的荒漠，仍有丰富的野生动物，它们构成了重要的极地生态系统。
植物
植物的演化是一个连续发展的过程，即从最原始的原核生物，一直到最高等的被子植物，每一个阶段都有化石佐证。植物界从低到高通常被分为这几大门类，藻类、菌类、地衣、苔藓、蕨类、裸子植物、被子植物。
真菌，我们平常食用的金针菇、香菇、灵芝都属于真菌大家庭。
生物多样性受到的威胁
近年来，物种灭绝的加剧，遗传多样性的减少，以及生态系统特别是热带森林的大规模破坏，引起了国际社会对生物多样性问题的极大关注。生物多样性丧失的直接原因主要有生境丧失和片段化、外来种的侵入、生物资源的过度开发、环境污染、全球气候变化和工业化的农业及林业等。但这些还不是问题的根本所在，根源在于人口的剧增和自然资源消耗的高速度、不断狭窄的农业、林业和渔业的贸易谱、经济系统和政策未能评估环境及其资源的价值、生物资源利用和保护产生的惠益分配的不均衡、知识及其应用的不充分以及法律和制度的不合理。总而言之，人类活动是造成生物多样性以空前速度丧失的根本原因。
中国是生物多样性特别丰富的国家之一。据统计，中国的生物多样性居世界第八位，北半球第一位。同时，中国又是生物多样性受到最严重威胁的国家之一。中国的原始森林长期受到乱砍滥伐、毁林开荒等人为活动的影响，其面积以每年0．5×104km2的速度减少；草原由于超载过牧、毁草开荒的影响，退化面积达87×104km2。生态系统的大面积破坏和退化，不仅表现在总面积的减少，更为严重的是其结构和功能的降低或丧失使生存其中的许多物种已变成濒危种或受威胁种。高等植物中有4000—5000种受到威胁，占总种数的15％—20％。在“濒危野生动植物种国际贸易公约”列出的640个世界性濒危物种中，中国就占156种，约为其总数的1／4，形势是十分严峻的。
生物是人类社会和文化的多元基础，更是我们五彩缤纷的生活的基础。据估计，地球上生物约有300-1000万种，但至今有案可查的只有大约150万种，经人类加以研究和利用的只是其中的一小部分。很多物种还未来得及命名就已经灭绝。更重要的是，平均每天就有140种生物从地球上消亡。全球范围内生物多样性正面临严重威胁。
乱砍滥伐，围湖造田，毁林开荒，过度放牧，公路建设等许多人类活动，都破坏和改变了生态环境，不仅减少了生物的适宜生境，也造成了生物的生殖隔离，降低了遗传多样性。
保护生物的多样性
面对如此巨大的生物物种危机，我们应该反对、监督、制止偷猎，采摘珍稀野生动植物，并与此做坚决斗争。
保护环境，爱惜动植物生命。让野生动物远离我们的餐桌。在发展生产的同时，保护野生动物的栖息地。向周围人宣传保护环境，保护生物的多样性。查字典