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Chapter 3
ecology
| Term | Definition |
|---|---|
| Natural Resources | Anything naturally occurring in the environment that humans use. |
| Pollution | Contamination of Earth's land, water, or air. |
| Point Source | A specific source of pollution that can be identified. |
| Nonpoint Source | A widely spread source of pollution that is difficult to link to a specific point or origin. |
| Environmental Science | The study of the natural processes that occur in the environment and how humans can affect them. |
| Renewable Resources | A resource that is either always available or is naturally replaced in a relatively short time. |
| Nonrenewable Resources | A natural resource that is not replaced in a useful time frame. |
| Sustainable use | The use of a resource in ways that maintain the resource at a certain quality for a certain period in time. |
| Ecological Footprint | The amount of land and water used that individuals use to meet their resource needs and to absorb the waste that they produce |
| Conservation | The practice of using less id a resource so that it can last longer |
| Exponential Growth | Growth pattern in which individuals in the population reproduce at a constant rate so that larger a population gets so that the larger a population gets the faster it grows |
| Clear-Cutting | The process of cutting down all the trees in an area at once |
| Selective Cutting | The process of cutting down only some tree species in an area |
| Sustainable Yield | The use of a resource in ways the maintain the resource at a certain quality for a certain period in time |
| Fishery | An area with a large population of valuable ocean organisms |
| Aquacultur | The practice of raising fish and other water-dwelling organisms for foods. |
| bio diversity | the number of different species in an area |
| keystone species | influences to survival of many other species in an ecosystem |
| gene | are located in cells and carry hereditary information that determines an organisms traits |
| extinction | the disappearance of all species from Earth |
| endangered species | Species in danger of become extinct in the near future |
| threatened species | species that could become endangered species in the near future |
| habitat destruction | the loss of a natural habitat |
| habitat fragmentation | the breaking of a habitat into a smaller,isolated peices |
| poaching | illegal killing or removal of wildlife from their habitats |
| captive breeding | the matting of animals in zoos or wildlife preserves |
Created by:
jac201020918
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