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18 Cards in this Set
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- Back
- 3rd side (hint)
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keystone species
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a species which has a major effect on its environment. a large number of other species depend on a keystone species for their survival.
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关键物种 |
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biodiversity hotspot
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area which is particularly rich in different species
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生物多样性热点地区 |
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species richness
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measure of the number of species in a given area
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物种丰富度 |
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indicator species
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species which can be used to monitor pollution levels. food levels etc.
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指标物种 |
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bioindicator
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species that is particularly sensitive to change and so can be used to indicate problems in an area which might lead to loss of biodiversity
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生物指标 |
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sample
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take measurements from a number of randomly selected areas
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样品 |
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quadrat
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apparatus used to identify an area for sampling
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样 |
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quantitative sampling
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counting the number of organisms within a measured area
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定量取样 |
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capture/recapture technique
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method of estimating the population of a particular species in an area which involves capturing individuals. making them and releasing them and then capturing some of them again.
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捕捉/重新捕捉技术 |
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genetic diversity
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variety of genes and alleles within a population
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遗传多样性 |
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extinction
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the permanant loss of all members of a species
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灭绝 |
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critically endangered
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facing an extremely high risk of extinction in the wild
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极危 |
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endangered
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facing a very high risk of extinction in the wild
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濒危 |
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vulnerable
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facing a high risk of extinction in the wild
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脆弱 |
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conservation
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looking after a living and changing environment
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保护 |
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Site of special scientific interest(SSSI)
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area protected from development because of the scientific value of the organisms living there
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特殊科学价值地点 |
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captive breeding programme
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breeding individuals from an endangered species in zoos and parks to save species from extinction
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圈养繁殖计划 |
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cross-species cloning
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cloning animals using a closely related species as a surrogate mother and provider of the empty egg
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跨物种克隆 |
