Fecundity, derived from the word, generally refers to the ability to reproduce. In biology and demography, fecundity is the potential reproductive capacity of an organism or population, measured by the number of gametes (eggs), seed set or asexual propagules. Fecundity is under both genetic and environmental control, and is the major measure of fitness. Fecundation is another term for fertilization. Super fecundity refers to an organism's ability to store another organism's sperm (after copulati… (More on Fecundity)