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Population Dynamics
Population Dynamics Vocab
| Term | Definition |
|---|---|
| Carrying Capasity | The largest population that an environment can support at any given time. |
| Climax community | a stable, mature community that undergoes little or no change in species over time |
| Density-dependent factor | A variable affected by the number of organisms present in a given area |
| Density-independent factor | a variable that affects a population regardless of the population density, such as climate |
| Emigration | The movement of individuals out of a population. |
| Exponential Growth Model | The pattern for population increase under ideal conditions. J-shaped growth curve is characteristic. The model assumes resources are unlimited. equation: dN/dt= RmaxN |
| Immigration | Movement of individuals into an area occupied by an existing population |
| Limiting Factors | any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms |
| Logistic Growth Model | a description of idealized population growth that is slowed by limiting factors as the population size increases nad carrying capacity. (S shaped Curve) |
| Mortality | The ratio of deaths in an area to the population of that area |
| Natality | The ratio of live births in an area to the population of that area |
| Population Density | the number of individuals of the same species that live in a given unit of area. |
| Primary Succession | succession that begins in an area that previously did not support life |
| Secondary Succession | the process by which one community replaces another community that has been partially or totally destroyed |