外语培训网,让考试变简单,让口语更流利!

位置:外语培训网 > 英语学习网 > 英语口语学习网 >

濒危物种的英文

资料整理:深圳维特英语发布时间:2018-09-05201

濒危物种的英文

濒危物种指所有由于物种自身的原因或受到人类活动或自然灾害的影响而导致其野生种群在不久的将来面临绝灭的机率很高的物种。下面小编为大家整理的濒危物种的英文,希望对大家有用!

濒危物种的英文

An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters. The International Union for Conservation of Nature (IUCN) has calculated the percentage of endangered species as 40 percent of all organisms based on the sample of species that have been evaluated through 2006.

Many nations have laws offering protection to conservation reliant species: for example, forbidding hunting, restricting land development or creating preserves.

Only a few of the many species at risk of extinction actually make it to the lists and obtain legal protection like Pandas. Many more species become extinct, or potentially will become extinct, without gaining public notice.

The conservation status of a species is an indicator of the likelihood of that endangered species not living. Many factors are taken into account when assessing the conservation status of a species; not simply the number remaining, but the overall increase or decrease in the population over time, breeding success rates, known threats, and so on.

Internationally, 199 countries have signed an accord agreeing to create Biodiversity Action Plans to protect endangered and other threatened species. In the United States this plan is usually called a species Recovery Plan.

Captive breeding is the process of breeding rare or endangered species in human controlled environments with restricted settings, such as wildlife preserves, zoos and other conservation facilities. Captive breeding is meant to save species from going extinct. It is supposed to stabilize the population of the species so it is no longer at risk for disappearing.

This technique has been used with success for many species for some time, with probably the oldest known such instances of captive mating being attributed to menageries of European and Asian rulers, a case in point being the Pere David’s Deer. However, captive breeding techniques are usually difficult to implement for highly mobile species like some migratory birds (e.g. cranes) and fishes (e.g. Hilsa). Additionally, if the captive breeding population is too small, inbreeding may occur due to a reduced gene pool; this may lead to the population lacking immunity to diseases.

广州勤学教育信息技术有限公司©版权所有 粤ICP备10236336号-4更新时间:2022-11-03