click below
click below
Normal Size Small Size show me how
Eco Evo Exam3(c.13)
Definitions
| Term | Definition |
|---|---|
| Overshoot | When a population grows beyond its carrying capacity. |
| Die-off | A substantial decline in density that typically goes well below the carrying capacity. |
| Population cycles | Regular oscillation of a population over a longer period of time. |
| Delayed density dependence | When density dependence occurs based on a population density at some time in the past. |
| Damped oscillations | A pattern of population growth in which the population initially oscillates but the magnitude of the oscillations declines over time. |
| Stable limit cycle | A pattern of population growth in which the population continues to exhibit large oscillations over time. |
| Deterministic model | A model that is designed to predict a result without accounting for random variation in population growth rate. |
| Stochastic model | A model that incorporates random variation in population growth rate. |
| Demographic stochasticity | Variation in birth rates and death rates due to random differences among individuals. |
| Environmental stochasticity | Variation in birth rates and death rates due to random changes in the environmental conditions. |
| Habitat fragmentation | The process of breaking up large habitats into a number of smaller habitats. |
| Rescue effect | When dispersers supplement a declining subpopulation and thereby prevent the subpopulation from going extinct, |