the Reproductive Priming Effect Revisited: Mate Poaching, Mate Copying, Or Both?.

According to the reproductive priming effect, an individual who enters into a romantic relationship tends to see an increase in admirers. To further understand the mechanisms underlying this effect and its relationship with mate poaching and copying, 560 undergraduates were asked to report their experiences of being a romantic target (i.e., experiencing more admirers when in a new relationship) or an admirer (having greater attraction for someone in a relationship). Over two thirds of respondents noticed this increase in admirers, and approximately half reported being more attracted to a person who recently entered a new relationship. Many of the responses indicated that this increased interest was a result of “jealousy” and reported that they wanted what they couldn\u27t have. Behavioral changes were varied and correlated only weakly with the effect (both as admirer and target), which suggests that the attraction is mainly due to the target’s relationship status. Men were found to be seeking out other opportunities when in a new relationship, indicating a unique mating strategy

Toupee or Not Toupee?: Cranial Hair and Perceptions of Men’s Attractiveness, Personality, and Other Evolutionary Relevant Traits

The question of whether or not cranial hair affects perceptions of attractiveness, personality, career success, and other traits related to fitness for men in two populations was investigated in two experiments. Experiment 1 used a 2 (race) × 2 (cranial hair of man) design, and examined attractiveness, fitness, and socially desirable personality measures. Experiment 2 used a 2 (race) × 2 (cranial hair) design to determine perceived attractiveness, fitness-related traits, and the Big-5 dimensions of personality. Amount of cranial hair did not affect personality ratings on the dimensions of the Big-5 but did affect perceived socially desired aspects of personality (such as warmth, sophistication, kindness, etc.). In Experiment 1, the White man with hair received higher perceived attractiveness, personality, and fitness ratings than the bald White man, while no differences occurred for the Black men. For Experiment 2

An Analysis of the Role of the State Manpower Services Council

The State of Alask

On a pedestal: High heels and the perceived attractiveness and evolutionary fitness of women

We analyzed the responses of 448 participants who completed questions on attractiveness and other evolutionary fitness related traits, and long- and short-term mating potential, of a woman in either high heeled or flat shoes. We hypothesized that the woman in high heels would be rated as more attractive and evolutionarily fit by both men and women, and preferred for short-term mating by men. The hypothesis was partially supported. The woman in high heels was perceived as being more sexually attractive, physically attractive, feminine, and of a higher status. Additionally, women rated women as having a higher status regardless of the shoe, than men, while men rated women as having higher short- and long-term mating potential, than women did, regardless of the shoe. We discuss the implications of these findings

If you leave, don\u27t leave now: The role of gender, sociosexuality, and fear of being single on desire to engage in breakup sex

Experiencing a romantic breakup is often a complicated and emotional experience, and in many cases, this emotional ambivalence leads to people having “breakup sex” with their ex-partners. To better understand this complicated relationship stage, we sampled 987 single adults to understand how individual differences in sociosexuality and fear of being single predict one\u27s desire to have breakup sex and previous breakup sex experience. We observed that both men and women who reported more unrestricted sociosexual orientations reported greater desire for breakup sex. However, women—but not men—who reported greater fear of being single reported a greater desire for breakup sex. Lastly, those who reported a more unrestricted sociosexual orientation were more likely to have had breakup sex in the past. Results suggest that both men\u27s and women\u27s desire for casual sex impacts engagement in breakup sex and that women\u27s desire is also motivated by their fear of being single

The “Green on Green” Conflict in Wind Energy Development: A Case Study of Environmentally Conscious Individuals in Oklahoma, USA

Development in wind energy technology and deployment of infrastructure reduces reliance on fossil fuels and can further energy security goals. Wind energy, however, can conflict with other green interests. The goal of this research was to examine the perceptions of environmentally conscious individuals at the intersection of wind energy development and biodiversity conservation interests. A majority of respondents identified that they cared very much about both renewable energy development as well as biodiversity conservation. We found that while participants were aware of the shifting causes of mortality of bird populations, they were less aware of the implications of wind energy on bat populations. In addition, attitudes towards biodiversity conservation as well as wind energy development were statistically significant when looking at the identification of some impacts. Most participants were willing to support wind energy development considering trade-offs related to factors such as visual impacts or economic benefits if it had no impacts on biodiversity conservation. Our research shows that environmentally conscious individuals are well-informed on only some impacts of wind energy development. Results also suggest that biodiversity conservation impacts are prioritized by environmentally conscious individuals when gauging support for wind energy development. As sustainable development continues, it is important to consider this green on green conflict, as renewable energy development is not only confronted by general issues of public opposition, but also specific environmental complaints.This manuscript was supported by funding from the US National Science Foundation (NSF DGE-1545261). Open Access fees paid for in whole or in part by the University of Oklahoma Libraries.Ye

Early Verb Learning: How Do Children Learn How to Compare Events?

An important problem verb learners must solve is how to extend verbs. Children could use cross-situational information to guide their extensions, however comparing events is difficult. Two studies test whether children benefit from initially seeing a pair of similar events (‘progressive alignment’) while learning new verbs, and whether this influence changes with age. In Study 1, 2 ½- and 3 ½-year-old children participated in an interactive task. Children who saw a pair of similar events and then varied events were able to extend verbs at test, differing from a control group; children who saw two pairs of varied events did not differ from the control group. In Study 2, events were presented on a monitor. Following the initial pair of events that varied by condition, a Tobii x120 eye tracker recorded 2 ½-, 3 ½- and 4 ½-year-olds’ fixations to specific elements of events (AOIs) during the second pair of events, which were the same across conditions. After seeing the pair of events that were highly similar, 2 ½-year-olds showed significantly longer fixation durations to agents and to affected objects as compared to the all varied condition. At test, 3 ½-year-olds were able to extend the verb, but only in the progressive alignment condition. These results are important because they show children\u27s visual attention to relevant elements in dynamic events is influenced by their prior comparison experience, and they show that young children benefit from seeing similar events as they learn to compare events to each other

Evolution of Mutational Robustness in an RNA Virus

Mutational (genetic) robustness is phenotypic constancy in the face of mutational changes to the genome. Robustness is critical to the understanding of evolution because phenotypically expressed genetic variation is the fuel of natural selection. Nonetheless, the evidence for adaptive evolution of mutational robustness in biological populations is controversial. Robustness should be selectively favored when mutation rates are high, a common feature of RNA viruses. However, selection for robustness may be relaxed under virus co-infection because complementation between virus genotypes can buffer mutational effects. We therefore hypothesized that selection for genetic robustness in viruses will be weakened with increasing frequency of co-infection. To test this idea, we used populations of RNA phage φ6 that were experimentally evolved at low and high levels of co-infection and subjected lineages of these viruses to mutation accumulation through population bottlenecking. The data demonstrate that viruses evolved under high co-infection show relatively greater mean magnitude and variance in the fitness changes generated by addition of random mutations, confirming our hypothesis that they experience weakened selection for robustness. Our study further suggests that co-infection of host cells may be advantageous to RNA viruses only in the short term. In addition, we observed higher mutation frequencies in the more robust viruses, indicating that evolution of robustness might foster less-accurate genome replication in RNA viruses

Mercury in fish and adverse reproductive outcomes: results from South Carolina

Mercury is a metal with widespread distribution in aquatic ecosystems and significant neurodevelopmental toxicity in humans. Fish biomonitoring for total mercury has been conducted in South Carolina (SC) since 1976, and consumption advisories have been posted for many SC waterways. However, there is limited information on the potential reproductive impacts of mercury due to recreational or subsistence fish consumption. To address this issue, geocoded residential locations for live births from the Vital Statistics Registry (1995–2005, N = 362,625) were linked with spatially interpolated total mercury concentrations in fish to estimate potential mercury exposure from consumption of locally caught fish. Generalized estimating equations were used to test the hypothesis that risk of low birth weight (LBW, <2,500 grams) or preterm birth (PTB, <37 weeks clinical gestation) was greater among women living in areas with elevated total mercury in fish, after adjustment for confounding. Separate analyses estimated term LBW and PTB risks using residential proximity to rivers with fish consumption advisories to characterize exposure. Term LBW was more likely among women residing in areas in the upper quartile of predicted total mercury in fish (odds ratio [OR] = 1.04; 95% confidence interval [CI]: 1.00-1.09) or within 8 kilometers of a river with a ‘do not eat’ fish advisory (1.05; 1.00-1.11) compared to the lowest quartile, or rivers without fish consumption restrictions, respectively. When stratified by race, risks for term LBW or PTB were 10-18% more likely among African-American (AA) mothers living in areas with the highest total fish mercury concentrations. To our knowledge, this is the first study to examine the relationship between fish total mercury concentrations and adverse reproductive outcomes in a large population-based sample that included AA women. The ecologic nature of exposure assessment in this study precludes causal inference. However, the results suggest a need for more detailed investigations to characterize patterns of local fish consumption and potential dose–response relationships between mercury exposure and adverse reproductive outcomes, particularly among AA mothers.https://doi.org/10.1186/1476-072X-13-3