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Env Science Week 4
Week 4 Vocabulary for Environmental Science
| Term | Definition |
|---|---|
| local extinction | when a species dies out only in a certain region but exists somewhere else |
| mass extinction | total loss of a species everywhere |
| conservation biology | discipline that brings together many fields to attempt to prevent extinction of species, destruction of ecosystems, & other biodiversity problems |
| sustainability | when economic needs are met while also protecting the environment |
| poaching | illegally hunting certain species, usually for profit |
| climax community | ecosystem that is mature & will remain stable if left alone |
| barren | bare land, without soil or living things growing on or in it |
| primary succession | slow process of building an ecosystem in an area that is barren and has never had any kind of soil or life there before;takes hundreds to thousands of years |
| pioneer species | hardy, fast-growing species such as moss, lichen, and bacteria that are the first organisms to take hold during primary succession |
| secondary succession | quicker growth of an ecosystem in an area that was previously inhabited by living organisms but may have been destroyed by fire, flood, etc. (Usually there are some seeds or other nutrients left to build on again) |
Created by:
jodytwining
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