Term
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Definition
| No longer in existence; that which has ended or died out. |
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Term
| Effective Population Size |
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Definition
| The size of an ideal population that would undergo the same amount of random genetic rift as the actual population; sometimes used to measure the amount of inbreeding in a finite, randomly mating population. |
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Term
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Definition
| Regions of little area but contain large percentages of global species distributions. |
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Term
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Definition
| A nonnative species that successfully colonizes a disturbed area or empty niche, spreads, and outcompetes associated native species. |
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Term
| Minimum Viable Population (MVP) |
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Definition
| Size of a population which, with a given probability, will ensure the existence of the population for a stated period of time. |
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Term
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Definition
| Area of suitable habitat necessary for maintaiing the MVP. |
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Term
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Definition
| Returning a degraded ecosystem or former ecosystem to pre-existing condition or as close to that condition as possible. |
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Term
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Definition
| A widespread geographic distribution. |
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Term
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Definition
| Occur in a single geographic area and no place else. |
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Term
| Critically Endangered Species |
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Definition
| Have a > or = 50% probability of extinction within 10 years or 3 generations, whichever is longer. |
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Term
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Definition
| Have a 20 % probability of extinction within 20 years or 5 generations. |
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Term
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Definition
| Have a > or = 10% probability of extinction within 100 years. |
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Term
| Effective Population Size |
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Definition
| The number of individuals that are able to contribue genes to the next generation; ie breeding individuals. |
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