Term
|
Definition
| a group of organisms of the same species that live in a specific geographical area and interbreed |
|
|
Term
|
Definition
| the number of individuals in a population |
|
|
Term
|
Definition
| the number of individuals of the same species that live in a given unit of area |
|
|
Term
|
Definition
| in ecology, the pattern of distribution of organisms in a population |
|
|
Term
|
Definition
| a hypothetical population that attempts to exhibit the key characteristics of a real population |
|
|
Term
|
Definition
| logarithmic growth, or growth in which numbers increase by a certain factor in each successive time period |
|
|
Term
|
Definition
| the largest population that an environment can support at any given time |
|
|
Term
|
Definition
| a variable affected by the number of organisms present in a given area |
|
|
Term
|
Definition
| a model of population growth that assumes that finite resource levels limit population growth |
|
|
Term
| density-independent factor |
|
Definition
| a variable that affects a population regardless of the population density, such as climate |
|
|
Term
|
Definition
| a species that is adapted for living in an environment where changes are rapid and unpredictable; characterized by rapid growth, high fertility, short life span, small body size, and exponential population growth |
|
|
Term
|
Definition
| a species characterized by slow maturation, few young, slow population growth, reproduction late in life, and a population density near the carrying capacity of the environment |
|
|
Term
|
Definition
| the principle that states that the frequency of alleles in a population does not change unless evolutionary forces act on the population |
|
|
Term
|
Definition
| the movement of genes into or out of a population due to interbreeding |
|
|
Term
|
Definition
| when individuals prefer to mate with others that live nearby or are of their own phenotype |
|
|
Term
|
Definition
| the random change in allele frequency in a population |
|
|
Term
|
Definition
| a characteristic of an organism that is determined by many genes |
|
|
Term
|
Definition
| a distribution of numerical data whose graph forms a bell-shaped curve that is symmetrical about the mean |
|
|
Term
|
Definition
| a natural selection process in which one genetic variation is selected and that causes a change in the overall genetic composition of the population |
|
|
Term
|
Definition
| a type of natural selection in which the average form of a trait is favored and becomes more common |
|
|
