AP Biology: Population Ecology Flashcards
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| 4821976612 | population | A group of individuals that belong to the same species and live in the same area | 0 | |
| 4821976613 | age structure | Percentage of the population (or number of people of each sex) at each age level in a population. |  | 1 |
| 4821976614 | population density | Number of individuals per unit area | 2 | |
| 4821976616 | exponential growth | Growth of a population in an ideal, unlimited environment, represented by a J-shaped curve when population size is plotted over time. |  | 3 |
| 4821976617 | carrying capacity | Largest number of individuals of a population that a environment can support |  | 4 |
| 4821976618 | desnsity dependent factor | factor that limits population growth and has greater effect in dense populations than less dense populations | 5 | |
| 4821976619 | density independent factor | limiting factor that affects all populations in similar ways, regardless of population size | 6 | |
| 4821976620 | limiting factor | Any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms. | 7 | |
| 4821976621 | logistic growth | When limiting factors restrict size of population to the carrying capacity of the environment. Forms an S-shaped curve. |  | 8 |
| 4821976623 | k-selected species | Species that produce a few, often fairly large offspring but invest a great deal of time and energy to ensure that most of those offspring reach reproductive age. |  | 9 |
| 4821976624 | r-selected species | Life history traits maximize reproductive success in uncrowded environments. Many small offspring that mature quickly, little if any parental care. |  | 10 |
| 4821976625 | life history pattern | A set of traits related to growth, survival, and reproduction such as age-specific mortality, life span, age at first reproduction, and number of breeding events. | 11 | |
| 4821976626 | survivorship curve | a graph showing the decline in numbers of a cohort over time |  | 12 |