Fertility and Fecundity — 2016 Paper I
Fertility and Fecundity
Model Answer
VAID ICSApproach
- Demand of Question: Define fertility and fecundity and clearly distinguish realized reproduction from biological reproductive capacity.
- Structuring the Response: Explain both concepts, identify their determinants, and show their demographic significance.
- Key Dimensions to Cover: Actual births, reproductive capacity, fecundability, age, nutrition, marriage, contraception and demographic measurement.
Model Answer
Introduction: Fertility and fecundity are related but distinct concepts in biological and demographic anthropology.
Fertility
Fertility refers to the actual reproductive performance of an individual or population, usually measured by the number of live births.
It is influenced by:
- age at marriage;
- contraception;
- birth spacing;
- cultural norms;
- socioeconomic conditions;
- reproductive health.
Thus:
Fertility = Actual reproduction
Fecundity
Fecundity refers to the biological capacity to reproduce, irrespective of whether reproduction actually occurs.
It depends on:
- physiological maturity;
- ovulation;
- sperm production;
- reproductive health.
Thus:
Fecundity = Potential reproductive capacity
A fecund woman may have low or zero fertility because of:
- celibacy;
- contraception;
- delayed marriage;
- personal choice.
Conversely, infertility indicates inability to achieve reproduction despite exposure.
A related concept, fecundability, refers to the probability of conception within a reproductive cycle.
Conclusion: Fertility is a demographic outcome, while fecundity is a biological capacity. Their distinction is essential for understanding population growth and human reproductive behaviour.
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