Reproduction in Human High Altitude Populations

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Abstract
Patterns of reproduction in human populations living at high altitudes are discussed. While there appears to be little impairment of gametogenesis in either sex in resident highland populations, there is good evidence that pregnancy may be interrupted and in those pregnancies which proceed to term, birth weights are reduced and perinatal mortality is increased. Demographic data, principally from Andean countries, suggest that total fertility in resident highland populations is at least as great as, if not greater than, that at lower levels; this offsets the high rate of foetal and neonatal wastage so that these populations are able to maintain, and even increase their numbers. This is achieved however, only by a reduction in unused reproductive capacity.

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