Trivers–Willard at birth and one year: evidence from US natality data 1983–2001
نویسندگان
چکیده
منابع مشابه
Trivers-Willard at birth and one year: evidence from US natality data 1983-2001.
Trivers & Willard (TW) hypothesized that evolution would favour deviations from the population sex ratio in response to parental condition: parents in good condition would have more sons and parents in poor condition would have more daughters. We analyse the universe of US linked births and infant deaths to white mothers 1983-2001, covering 48 million births and 310,000 deaths. We find that (i)...
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OBJECTIVE To examine how fetal and infant growth are related to left ventricular mass in adult life. DESIGN A follow up study of men born during 1920-30 whose birth weights and weights at 1 year were recorded. SETTING Hertfordshire, England. SUBJECTS 290 men born and still living in East Hertfordshire, England. MAIN OUTCOME MEASURE Left ventricular mass calculated from measurements of i...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society B: Biological Sciences
سال: 2007
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2007.0524