Civil War, Sexual Violence and HIV Infections: Evidence from the Democratic Republic of the Congo

This paper estimates the effect of conflict and conflict-related vulnerability factors, namely sexual violence and economic vulnerability, on HIV prevalence rates. We find that HIV prevalence rates are higher in conflict-affected regions of the Democratic Republic of the Congo (DRC) than in non-conflict regions, and that sexual violence and economic vulnerability significantly affect HIV prevalence rates. Specifically we find that (i) HIV prevalence is 1.64 % higher in war-affected zones than elsewhere in the DRC; (ii) the impact of sexual violence in conflict-affected regions is 55 times greater than on average (1.10 % versus 0.02 %); (iii) Civil war and sexual violence jointly increase HIV infection rates by 1.45 %; (iv) Finally, economic conflict-related vulnerability does not explain HIV infection rates. In contrast, a one percent point decrease in the poverty incidence, that is a reduction in economic vulnerability, increases HIV prevalence rates by 0.048 % regardless of the situation of conflict.AIDS, HIV, Civil war, sexual violence, DRC, Sub-Saharan Africa.

Men's and women's experiences of violence and traumatic events in rural Cote d'Ivoire before, during and after a period of armed conflict.

OBJECTIVE: We assessed men's and women's experiences of gender based violence and other traumatic events in Côte d'Ivoire, a West African conflict-affected setting, before, during and after a period of active armed conflict (2000-2007). DESIGN: Cross-sectional, household survey. SETTING: 12 rural communities directly impacted by the Crisis in Côte d'Ivoire, spanning regions controlled by government forces, rebels and UN peacekeepers in 2008. PARTICIPANTS: 2678 men and women aged 15-49 years. PRIMARY OUTCOME MEASURES: Violence exposures measured since age 15. Questions included intimate partner physical and sexual violence; physical and sexual violence by others (including combatants) and exposure to traumatic events before, during and after the Crisis period (2000-2007). RESULTS: Physical and/or sexual violence since age 15 was reported by 57.1% women and 40.2% men (p=0.01); 29.9% women and 12.3% men reported exposure to any violence in the past year. Nearly 1 in 10 women (9.9%) and 5.9% men (p=0.03) were forced to have sex by a non-partner since age 15, and 14.8% women and 3.3% men (p=0.00) reported their first sexual experience was forced. Combatants were rarely reported as sexual violence perpetrators (0.3% women). After the Crisis, intimate partner physical violence was the most frequently reported form of violence and highest among women (20.9% women, 9.9% men, p=0.00). Fearing for their life was reported by men and women before, during and after the Crisis. CONCLUSIONS: Sexual violence in conflict remains a critical international policy concern. However, men and women experience different types of violence before, during and after conflict. In many conflict settings, other forms of violence, including intimate partner violence, may be more widespread than conflict-related sexual violence. Alongside service provision for rape survivors, our findings underscore the need for postconflict reconstruction efforts to invest in programmes to prevent and respond to intimate partner violence and trauma

The evolution of harm: effect of sexual conflicts and population size

Conflicts of interest between mates can lead to the evolution of male traits reducing female fitness and to coevolution between the sexes. The rate of adaptation and counter-adaptation is constrained by the intensity of selection and its efficiency, which depends on drift and genetic variability. This leads to the largely untested prediction that coevolutionary adaptations such as those driven by sexual conflict should evolve faster in large populations where the response to selection is stronger and sexual selection is more intense. We test this using the bruchid beetle Callosobruchus maculatus, a species with well documented male harm. Whilst most experimental evolution studies remove sexual conflicts, we reintroduce sexual conflict in populations where it has been experimentally removed. Both population size and standing genetic variability were manipulated in a factorial experimental design. After 90 generations of relaxed conflict (monogamy), the reintroduction of sexual conflicts for 30 generations favoured males that harmed females and females more resistant to the genital damage inflicted by males. Large population size rather than high initial genetic variation allowed males to evolve faster and become more harmful. Sexual selection thus creates conditions where males benefit from harming females and this selection is more effective in larger populations

Access to Justice For Women: India's Response to Sexual Violence in Conflict and Social Upheaval

A 2014 report by the Special Rapporteur on Violence Against Women on gender-based crimes describes the female experience in India as consisting of a "continuum of violence...from the 'womb to the tomb.'" According to Indian government data, a woman is raped in the country approximately every twenty minutes. Women and girls are especially vulnerable to sexual violence during armed conflict and mass violence. Indeed, gender-based crime is a common feature of the armed conflict and mass violence that has marred India since independence.This report examines emblematic case examples from conflict zones and incidents of mass violence to understand how the Indian State responds to sexual violence against women and girls in these contexts. The goal of this report is to analyze the efforts of women victims of sexual violence and their allies to access justice in these contexts and to identify emblematic ways the Indian legal system succeeded or failed to provide effective redress

Effects of social stimuli on sleep in mice: non-rapid-eye-movement (NREM) sleep is promoted by aggressive interaction but not by sexual interaction

Sleep is generally considered to be a process of recovery from prior wakefulness. In addition to being affected by the duration of the waking period, sleep architecture and sleep EEG also depend on the quality of wakefulness. In the present experiment, we examined how sleep is affected by different social stimuli (social conflict and sexual interaction). Male C57BL/6J mice were placed in the cage of an aggressive dominant male or an estrous female for 1 h in the middle of the light phase. The conflict with an aggressive male had a pronounced NREM sleep-promoting effect. EEG slow wave activity, a measure of NREM sleep intensity, was increased for about 6 h and NREM sleep time was significantly increased for 12 h. REM sleep was strongly suppressed during the remainder of the light phase after the conflict, followed by a rebound later in the recovery phase. The sexual interaction, in contrast, had only mild effects. Both NREM sleep and REM sleep were somewhat suppressed shortly after the interaction. In a separate group of mice, blood samples were taken to measure prolactin and corticosterone. The results suggest that the temporary suppression of REM sleep following the social stimuli may be partly due to elevated corticosterone. The different effects of the social stimuli on NREM sleep are not easily explained by differences in the hormone responses. In conclusion, although both social conflict and sexual interaction induce a strong physiological activation, only social conflict has a strong stimulatory effect on NREM sleep mechanisms.

Sexual conflict

This is the author accepted manuscript. The final version is available from Elsevier via the DOI in this record.Evolutionary conflict arises from differences in the fitness interests of replicating entities and has its roots in relatedness asymmetries. Every replicator is related to itself by 100%, but in most cases is less related to other replicators, which generates selfishness and conflicts of interest. Since this basic condition is the norm at many levels of biological organization, conflict is rife in biological systems. Sexual conflict, on which we focus here, is the evolutionary conflict that occurs between males and females because of their divergent fitness interests. Sexual conflict occurs despite sexual reproduction requiring some level of cooperation between males and females because the fitness interests of the sexes are nevertheless never perfectly aligned. In other words, males and females may agree on where they are going, but not necessarily on how to get there. Sexual conflict is a vast topic with relevance to many areas of biology and so here we restrict our focus to matters we think are of broadest interest. Hosken et al. introduce sexual conflict

Male sexually coercive behaviour drives increased swimming efficiency in female guppies

Sexual coercion of females by males is widespread across sexually reproducing species. It stems from a conflict of interest over reproduction and exerts selective pressure on both sexes. For females, there is often a significant energetic cost of exposure to male sexually coercive behaviours. Our understanding of the efficiency of female resistance to male sexually coercive behaviour is key to understanding how sexual conflict contributes to population level dynamics and ultimately to the evolution of sexually antagonistic traits. Overlooked within this context are plastic physiological responses of traits within the lifetime of females that could moderate the energetic cost imposed by coercive males. Here, we examined whether conflict over the frequency and timing of mating between male and female guppies Poecilia reticulata can induce changes in swimming performance and aerobic capacity in females as they work to escape harassment by males. Females exposed to higher levels of harassment over a 5-month period used less oxygen to swim at a given speed, but displayed no difference in resting metabolic rate, maximal metabolic rate, maximal sustained swimming speed or aerobic scope compared to females receiving lower levels of harassment. The observed increase in swimming efficiency is at least partially related to differences in swimming mechanics, likely brought on by a training effect of increased activity, as highly harassed females spent less time performing pectoral fin-assisted swimming. Sexual conflict results in sexually antagonistic traits that impose a variety of costs, but our results show that females can reduce costs through phenotypic plasticity. It is also possible that phenotypic plasticity in swimming physiology or mechanics in response to sexual coercion can potentially give females more control over matings and affect which male traits are under selection