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Article

Secondary sex ratios and male lifespan: Damaged or culled cohorts

23 Jan 2006

Abstract excerpt

Population stressors reportedly reduce the human secondary sex ratio (i.e., the odds of a newborn's being male) by, among other mechanisms, inducing the spontaneous abortion of males who would have been born live had mothers not been stressed. Controversy remains as to whether these abortions result from reduced maternal tolerance of males at the low end of a relatively constant distribution of survivability...

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PMID: 16432236
DOI: 10.1073/pnas.0510567103

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