WebMay 1, 2016 · Operational Sex Ratios (OSR) -defined by Emlen (1976) as "the ratio of receptive females to potential mating males at any one time" -are widely used in studies of animal mating systems and sexual ... WebJul 22, 2024 · Female college students from faculties with female-biased OSRs exhibit greater appearance focus than women from male-biased faculties (Study 3). A causal relationship, between women’s intrasexual competition and beautification (and even self-objectification), is subsequently demonstrated in experiments (Studies 4–6).
Parental investment, sexual selection and sex ratios
WebOperational sex ratio versus gender density as determinants of copulation duration in the walnut fly, Rhagoletis juglandis (Diptera: Tephritidae) ... on copulation duration in which male-biased ratios were associated with low frequencies of short copulations and female-biased ratios were associated with high frequencies of short copulations ... WebDec 21, 2024 · Sea turtles have temperature-dependent sex determination. Because females are produced at high temperatures, increasing global temperature may lead to population feminization. Primary sex ratios … cliffbury guest house llandudno
When population-advantageous primary sex ratios are …
WebJul 31, 2024 · The operational sex ratio (OSR) is the ratio of males to females that are in the mating pool seeking mates. The effective sex ratio (ESR) is the ratio of males to … WebApr 12, 2024 · The electrocardiogram (ECG) has been known to be affected by demographic and anthropometric factors. This study aimed to develop deep learning models to predict the subject’s age, sex, ABO blood type, and body mass index (BMI) based on ECGs. This retrospective study included individuals aged 18 years or older who … WebIn the evolutionary biology of sexual reproduction, operational sex ratio (OSR) is the ratio of sexually competing males that are ready to mate to sexually competing females that are ready to mate, or alternativel …. What is the relationship between the operational sex ratio (OSR) and sexual selection in a species? Female-biased OSRs result ... cliff burton wah pedal