click below
click below
Normal Size Small Size show me how
Chapter 5
| Word | Def. |
|---|---|
| biodiversity | variety of life in an area |
| extinction | the disapperance of a species when the last of its members dies |
| endangered species | a species in which the number of individuals falls so low that extinction is possible |
| threatened species | when the population of a species is likely to become endangered |
| habitat fragmentation | seperation of wilderness areas from eachother |
| edge effect | differend enviromental conditions that occur along the boundaries of an ecosystem |
| habitat degradation | damage to a habitat by air, water, and land pollutions |
| acid precipitation | rain, snow, sleet or fog with a pH below 5.6 |
| ozone layer | layer of the atmosphere that helps to protect living organisms on Earth's surface from damaging doses of ultraviolet radiation from the sun |
| exotic species | nonnative species in an area |
| Conservation Biology | The study and implementation of methods to protect biodiversity |
| Natural Resources | The parts of the enviroment that are useful or necessary for living organisms |
| Habitat Corriders | Protected strips of land that allow the migration of organisms from one wilderness area to another |
| Sustainable Use | Strives to enable people to use natural resources in was that will benefit them and maintain the ecosystem |
| Reintroduction Programs | Release the organism into an area where the species once lived |
| Captivity | An organism that is held safe by a group of people |