Testing the Trivers-Willard Hypothesis on Polish kings and dukes
نویسندگان
چکیده
منابع مشابه
The maternal dominance hypothesis: questioning Trivers and Willard
Thirty years ago, Trivers and Willard (1973) hypothesized that parental “condition” could be central in influencing the sex ratio of offspring, “good condition” being associated with the conception of males. However, I argue that “condition” is a distraction in this otherwise useful hypothesis, because it is merely a frequent indicator of dominance (a characteristic which often leads to priorit...
متن کاملThe Trivers-Willard hypothesis: sex ratio or investment?
The Trivers-Willard hypothesis has commonly been considered to predict two things. First, that a mother in good condition should bias the sex ratio of her offspring towards males (if males exhibit greater variation in reproductive value). Second, that a mother in good condition should invest more per son than per daughter. These two predictions differ empirically, mechanistically and, as we dem...
متن کاملSex Differences in Intergenerational Income Transmission and Educational Attainment: Testing the Trivers-Willard Hypothesis
From an evolutionary point of view, sex differences in intergenerational transmission of income may be influenced by the Trivers-Willard (T-W) effect: Low status parents should invest more in daughters, whereas high status parents are expected to invest more in sons. This bias in parental investment may result in status-dependent sex biased parental support for higher education and educational ...
متن کاملSex-Biased Parental Investment among Contemporary Chinese Peasants: Testing the Trivers-Willard Hypothesis
The Trivers-Willard hypothesis predicts that high-status parents will bias their investment to sons, whereas low-status parents will bias their investment to daughters. Among humans, tests of this hypothesis have yielded mixed results. This study tests the hypothesis using data collected among contemporary peasants in Central South China. We use current family status (rated by our informants) a...
متن کاملBeautiful parents have more daughters: a further implication of the generalized Trivers-Willard hypothesis (gTWH).
The generalized Trivers-Willard hypothesis (gTWH) [Kanazawa, S., 2005. Big and tall parents have more sons: further generalizations of the Trivers-Willard hypothesis. J. Theor. Biol. 235, 583-590) proposes that parents who possess any heritable trait which increases the male reproductive success at a greater rate than female reproductive success in a given environment will have a higher-than-ex...
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ژورنال
عنوان ژورنال: Anthropological Review
سال: 2019
ISSN: 2083-4594
DOI: 10.2478/anre-2019-0030