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Eco Evo Exam 2 (c.8)
Definitions
Term | Definition |
---|---|
Life history | The scheudle of an organism's growth, development, reproduction, and survival. |
Fecundity | The number of offspring produced by an organism per reproductive episode. |
Parity | The number of reproductive episodes an organism experiences. |
Parental investment | The amount of time and energy given to an offspring by its parents. |
Longevity | The life span of an organism. Also known as Life Expectancy. |
Principle of allocation | The observation that when resources are devoted to one body structure, physiological function, or behavior, they cannot be allotted to another. |
Coefficient of determination (R^2) | An index that tells us how well data fit to a line. |
Determinate growth | A growth pattern in which an individual does not grow any more once it initiates reproduction. |
Indeterminate growth | A growth pattern in which an individual continues to grow after it initiates reproduction. |
Semelparity | When organisms reproduce only once during their life. |
Iteroparity | When organisms reproduce multiple times during their life. |
Annual | An organism that has a life span of one year. |
Perennial | An organism that has a life span of more than one year. |
Senescence | A gradual decrease in fecundity and an increase in the probability of mortality. |
Photoperiod | The amount of light that occurs each day. |