Does polygyny reduce fertility?
| Autor: | Steven C. Josephson |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Adult
Male Adolescent media_common.quotation_subject Reproductive strategy Fertility Birth Intervals Pregnancy Utah Genetics Humans Sociology Marriage Low fertility Polygyny Ecology Evolution Behavior and Systematics Aged media_common Aged 80 and over Increased fertility Middle Aged Anthropology Female Anatomy Demography |
| Zdroj: | American Journal of Human Biology. 14:222-232 |
| ISSN: | 1520-6300 1042-0533 |
| DOI: | 10.1002/ajhb.10045 |
| Popis: | Polygyny can increase, decrease, or have no effect on fertility. Understanding how this can occur requires consideration of both the proximate determinants of fertility and the ultimate effects of polygyny as a female reproductive strategy. Several factors reduced the fertility of polygynous women in 19th century Utah, including marrying at an older age, marrying older men, and conflict between co-wives. Sterility did not explain the reduced number of children in polygynous women, nor is there evidence of a "dilution effect" from sharing a husband. If women could anticipate a reduction in their own fertility, why would they still choose polygyny? Evidence suggests that they chose it because the children of polygynous men had increased fertility, high enough to offset the low fertility of polygynous women themselves. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text