Human sex ratio as it relates to caloric availability

Dados Bibliográficos

ID5958151
AutoresRichard J Williams (0000-0002-9558-9588, Government of Manitoba, autor correspondente), Robert J Williams (0000-0002-3943-0273), Susan P Gloster (Government of Manitoba)
Ano1992
Volume39
Fascículo3-4
Páginas285-291
Data de publicação1992-09-01
Peer ReviewedSim
Open AccessNão
TipoARTICLE
PeriódicoBiodemography and Social Biology (JOURNAL)
Identificadores do periódicoISSN: 1948-5565 • E-ISSN: 1948-5573
EditoraInforma UK Limited (PUBLISHER • GB)
DOI10.1080/19485565.1992.9988823
PMID1340046
OpenAlexW2024785001
IdiomaEN
Citações recebidas12
Referências citadas25

The relationship between human sex ratios at birth and caloric availability per capita was examined across different countries. Significant positive correlations were obtained between the amount of food a country had available and the percentage of male births. Furthermore, increases or decreases in a country's caloric availability were related to corresponding changes in that country's sex ratio. These results provide evidence of adaptive sex ratio biasing in humans. The physiological mechanism by which this effect operates is probably higher mortality rates for male embryos and fetuses as a result of nutritional deficiencies and associated stressors

Biology · Caloric theory · Demographic Trends and Gender Preferences · Global Maternal and Child Health · Psychology · Endocrinology