What is fecundy?
The number of offspring produced by an organism per reproductive episode.
What is Parity?
The number of reproductive episodes an organism experiences.
What is determinate growth (in the context of sexual maturity and lifespan)?
A growth pattern in which an individual does not grow any more once it initiates reproduction.
What is indeterminate growth (in the context of sexual maturity and lifespan)?
A growth pattern in which an individual continues to grow after it initiates reproduction.
What is semelparity?
When an organism only reproduces once in its lifetime
What is iteroparity?
When an organism reproduces multiple times in its lifetime
What is the difference between an annual and perennial lifespan?
One year versus multiple years.
Are all semelparous organisms annual?
No. Think of the giant pacific octopus which lives roughly 5 years and reproduces once.
What does the principle of allocation state?
When resources (time, energy, and nutrients) are devoted to one body structure, physiological function, or behaviour, they cannot be allotted to another.
What trade-off might an animal experience with large offspring?
Having very few offspring at a time.
As the number of offspring a female can have at once increases the quality of parental care she can provide, the number of offspring likely to survive, and the odds of parental survival ________________.
Decreases
What is the life history of an organism?
The schedule of an organism’s growth, development, reproduction, and survival.
What life history traits can predation affect in prey organisms?
- time to and size at hatching
- time to and size at metamorphosis
- time to and size at sexual maturity