Results 1 to 10 of about 7,415,942 (348)

Traditional agricultural practices and the sex ratio today. [PDF]

open access: yesPLoS ONE, 2018
We study the historical origins of cross-country differences in the male-to-female sex ratio. Our analysis focuses on the use of the plough in traditional agriculture.
Alberto Alesina   +2 more
doaj   +2 more sources

Sex ratio effects on reproductive strategies in humans [PDF]

open access: yesRoyal Society Open Science, 2015
Characterizations of coy females and ardent males are rooted in models of sexual selection that are increasingly outdated. Evolutionary feedbacks can strongly influence the sex roles and subsequent patterns of sex differentiated investment in mating ...
Ryan Schacht   +1 more
doaj   +2 more sources

A synthetic sex ratio distortion system for the control of the human malaria mosquito

open access: greenNature Communications, 2014
It has been theorized that inducing extreme reproductive sex ratios could be a method to suppress or eliminate pest populations. Limited knowledge about the genetic makeup and mode of action of naturally occurring sex distorters and the prevalence of co ...
Roberto Galizi   +8 more
openalex   +3 more sources

Genetic architecture of sex determination in fish: Applications to sex ratio control in aquaculture

open access: yesFrontiers in Genetics, 2014
Controlling the sex ratio is essential in finfish farming. A balanced sex ratio is usually good for broodstock management, since it enables to develop appropriate breeding schemes.
Paulino eMartínez   +5 more
doaj   +2 more sources

Socioeconomic status and sex ratio in the contemporary Hungarian population [PDF]

open access: yesEvolutionary Human Sciences
According to the Trivers–Willard hypothesis (TWH), when the mother's condition around conception influences the future reproductive success of male and female offspring differently, the adjustment of offspring sex ratio (SR) to maternal condition will ...
Fanni Sarkadi   +2 more
doaj   +2 more sources

Sex ratio [PDF]

open access: bronzeActa Theriologica, 1983
Gabriela Bujalska
openalex   +2 more sources

Sex ratios [PDF]

open access: yesHeredity, 2002
Sex ratio theory attempts to explain variation at all levels (species, population, individual, brood) in the proportion of offspring that are male (the sex ratio). In many cases this work has been extremely successful, providing qualitative and even quantitative explanations of sex ratio variation.
West, Stuart A   +2 more
openaire   +7 more sources

Sex ratios [PDF]

open access: yesCurrent Biology, 2017
Jennions et al. introduce the different kinds of sex ratio and their biology.
Jennions, Michael D.   +3 more
openaire   +3 more sources

Does the Mother or Father Determine the Offspring Sex Ratio? Investigating the Relationship between Maternal Digit Ratio and Offspring Sex Ratio. [PDF]

open access: yesPLoS ONE, 2015
In mammals, high parental testosterone levels present around the time of conception are thought to skew offspring sex ratio toward sons. The second to fourth digit ratio (digit ratio) is now widely accepted as a negative correlate of prenatal ...
Tae Beom Kim   +4 more
doaj   +1 more source

Trends in female-selective abortion among Asian diasporas in the United States, United Kingdom, Canada and Australia

open access: yeseLife, 2022
Preference for sons and smaller families and, in the case of China, a one-child policy, have contributed to missing girl births in India and China over the last few decades due to sex-selective abortions.
Catherine Meh, Prabhat Jha
doaj   +1 more source

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