Flashcards: Ch.5 Population Growth vocabulary terms
All 14 terms
Terms | Definitions |
|---|---|
 geographic range | the area inhabited by a population |
| population density | number of individuals per unit area |
| distribution | refers to how individuals in a population are spaced out across the range of the population |
| growth rate | determines if the size of a population increases, decreases, or stays the same |
| age structure | the number of males and females of each age in a population |
| immigration | movement of individuals into an area occupied by an existing population |
| emigration | movement of individuals out of an area |
| exponential growth | growth pattern in which the individuals of a population reproduce at a constant rate |
| carrying capacity | maximum number of individuals of a particular species that a particular environment can support |
| limiting factor | factor that controls the growth of a population |
| density-dependent limiting factor | limiting factor that depends on density competition, predation, herbivory, parasitism and disease, stress from overcrowding |
| density-independent limiting factor | limiting factor that affects all populations in similar ways, regardless of the population density |
| demography | study of human populations |
| demographic transition | a dramatic change from high birthrates and death rates to low birthrates and death rates |