| A | B |
|---|
| Exponential Growth | As a population gets larger it grows at a faster rate |
| Carrying Capacity | # of organisms of 1 species an environment can support indefinitely |
| Life-History Pattern | An organism's reproductive pattern |
| Density-Dependent Factors | Disease, competition, predators & food |
| Density-Independent Factors | volcanic eruptions, temperature, storms, floods & drought |
| Demography | the study of human population size, density and distribution, movement and its birth and death rates |
| Birthrate | # of live births/1000-yr |
| Death Rate | # of deaths/1000-yr |
| immigration | movement of individuals into an area |
| emigration | movement of individuals out of an area |
| PGR | Population Growth Rate |
| Doubling Time | time needed for a population to double in size |
| Age Structure | proportions of the population that are in different age levels |
| Diane Fossey | Studied populations of Apes in Africa |
| Biodiversity | the variety of species in a specific area |
| Extinction | the disappearance of a species when the last of its members dies |
| Endangered Species | #'s of a species are so low that extinction is possible |
| Habitat Fragmentation | separation of wilderness areas from other wilderness areas |
| Edge effects | different conditions along the boundary of an ecosystem |
| Habitat Degradation | damage to a habitat by pollution |
