Sexual selection and the evolution of complex color patterns in dragon lizards

Many species have elaborate and complex coloration and patterning, which often differ between the sexes. Sexual selection may increase the size or intensity of color patches (elaboration) in one sex or drive the evolution of novel signal elements (innovation). The latter potentially increases color pattern complexity. Color pattern complexity may also be influenced by ecological factors related to predation and environment; however, very few studies have investigated the effects of both sexual and natural selection on color pattern complexity across species. We used a phylogenetic comparative approach to examine these effects in 85 species and subspecies of Australian dragon lizards (family Agamidae). We quantified color pattern complexity by adapting the Shannon–Wiener diversity index. There were clear sex differences in color pattern complexity, which were positively correlated with both sexual dichromatism and sexual size dimorphism, consistent with the idea that sexual selection plays a significant role in the evolution of color pattern complexity. By contrast, we found little evidence of a link between environmental factors and color pattern complexity on body regions exposed to predators. Our results suggest that sexual selection rather than natural selection has led to increased color pattern complexity in males.

Professionals' perceptions of a new model of sexual assault investigation adopted by Victoria Police

This article presents a qualitative evaluation of a new method of operation for sexual assault investigation developed by Victoria Police. The model is characterised by two core components: the establishment of specialist teams of investigators responsible for investigation and victim support; and the establishment of service sites, referred to as 'Multidisciplinary Centres', where all key services are located in a single building separate from police stations. The research approach consisted of in-depth interviews with 90 stakeholders (police, counsellors, medical officers, child protection workers and prosecutors). Collectively, these interviews revealed strong, unanimous support for the ideologies that underpinned the new reforms. Reported outcomes included the following: improved collaboration; increased victim satisfaction, referrals between professionals and reporting rates; reduced response and investigation times; better quality briefs; and higher prosecution and conviction rates. These findings, along with the stakeholders' suggestions for further improvements, are discussed.

Oh yes, he is hot : female football fans and the sexual objectification of sportsmen’s bodies

The past decade has witnessed a growing focus on the study of women sports fans within the social sciences and related disciplines. Emerging from and responding to the historical marginalization of women in sport and the bias towards the male fan in literature on sports spectatorship, critical research on women spectators serves the valuable function of illuminating “women’s everyday experiences of being a sports fan” (Gosling 2007: 250). This chapter considers one aspect of women’s participation as followers of male sports, namely, the extent to which female fans partake in the sexual objectification of sportsmen. We aim to assess how looking at male athletes in sexually desiring ways impacts on the individual and collective construction of women’s gender and sports fan identities.