Answer
Survivorship is defined as the proportion of a population that lives past a given age. Fecundity is a measurement of the reproductive rate of an organism or population. Due to restrictions in time and physical resources, survivorship and fecundity are often inversely related.
Work Step by Step
For example, sea turtles reproduce in large numbers, but very few survive to adulthood due to natural predators. On the other hand, humans produce fewer offspring, but our survivorship remains high due to high amounts of parental care.