Fecundity
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Fecundity, derived from the word fecund, 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. Fecundation is another term for fertilisation.
Fecundity is important and well studied in the field of population ecology. Numerous studies such as by Gaillard et al (2000) have shown that fecundity can increase or decrease in a population according to current conditions and certain regulating factors. For instance, in times of hardship for a population such as a lack of food, juvenile and eventually adult fecundity has been shown to decrease. This shows that the population will reduce birth rate in times of hardship so as to decrease population density and try to ensure survival of the population.
Fecundity has also been shown to increase in ungulates with relation to warmer weather.
In the philosophy of science, fecundity refers to the ability of a scientific theory to open new lines of theoretical inquiry.sr:Фекундизам