Fitness Costs of Sexual Harassment–The Price of Persuasion

Females are often subjected to unwanted mating advances from males. Such advances can be costly to both parties. The short‐term costs of harassment to females have been widely explored in the literature; however, few studies have measured the direct fitness costs. Moreover, male costs are seldom considered. Conventional wisdom would lead us to hypothesise that sexual harassment is costly; thus, when males and females are housed together, harassment should reduce foraging, growth and reproductive output and may disrupt social interactions. This study quantified harassment costs in both sexes by observing behavioural responses and long‐term effects of unsolicited mating in a controlled setting. Sexually mature guppies were subjected to two housing treatments: equal sex ratios or single‐sex groups. The effects of male harassment on males and females were assessed by measuring behaviour, growth rate and the number of offspring produced over a period of 6 mo. Contrary to our expectations, our results indicated no significant differences in foraging and growth rates between mixed‐ and single‐sex shoals for either sex. Moreover, there was no significant difference in fry production between mixed‐ and all‐female shoals. Large males showed higher mortality when housed with females. Both sexes showed a reduction in shoaling when in mixed‐sex groups. Thus, there appear to be few direct costs of harassment for females in natural, mixed‐sex shoals, but males appear to bear significant harassment costs. The study provides insights into reproductive behaviour and life‐history traits.     

Why are female color polymorphisms rare in territorial damselflies?

In nonterritorial damselflies, females often come in multiple color morphs, perhaps because females with rare colors experience reduced sexual harassment, and thus have a frequency‐dependent fitness advantage, compared to females of the most common color morph, but such polymorphisms are rare in territorial species. We consider three hypotheses to explain the rarity of female color polymorphisms in territorial species: (a) misdirected male aggression, (b) poor male mate recognition, and (c) low mating harassment rates. The first hypothesis has some empirical support, and can account for the absence of andromorphs (i.e., females that resemble males), but does not explain the absence of multiple heteromorphs. We tested the second hypothesis by presenting females of two novel color morphs (green‐ or red‐banded abdomens) to territorial male Hetaerina capitalis. Females of both novel color morphs elicited fewer sexual responses than control females, and the red morph occasionally elicited aggressive responses. These results indicate that novel female color morphs would experience reduced mating harassment in this species, contradicting the hypothesis that male mate recognition is too poorly developed to reduce harassment of novel female morphs. By process of elimination, the third hypothesis, that harassment rates are too low in territorial species to provide rare female morphs a fitness advantage, is favored, but remains untested. Our findings also suggest that the common practice of color‐marking odonates for behavioral research is likely to interfere with mate choice, as has long been known to be the case in birds.     

Concepts of race vanishing,movements of racism rising? Global issues and Austrian Ethnography

This article discusses a contradiction: while notions of race are disappearing from public and academic discourses, numbers of racist socio-political movements are rising. This paradox is examined, first, on a conceptual and methodological level, and some different uses of the relevant terms (e.g., ‘race’ and ‘Rasse’) between English- and German-language spheres are explored. Then, the paradox is assessed through an ethnographic case from Austria. The rise of racist and xenophobic attitudes during the 1990s is discussed for one region where explicit racist language was nevertheless minimal. The analysis relates this to the persistent reproduction of certain cultural practices. Local perceptions of ‘warrior monuments’ are taken as an example to argue that changes in official terminology may conceal, rather than disrupt, the emotional continuities of supremacist nationalism.     

Frequent harassment of mounting after a takeover of a group of moor macaques (Macaca maurus)

Harassment behavior during mounting was observed in a group of moor macaques (Macaca maurus) in Sulawesi, Indonesia. During the study periods in 1994 and 1995, most harassment was performed by juveniles less than 5 years old. No harassment by adult females was observed. Mounting by the α-male, who had newly immigrated to the group, was harassed more frequently than that by the β-male in 1994. In 1995, the frequency of harassment during mounting by the α-male was low as compared with that in 1994. In the case of the new α-male, harassment occurred more frequently during mounting with sexually tumescent females than during mounting with detumescent females. Harassment was rarely observed during mounting by natal males of the group. Many hypotheses have been proposed to explain harassment of mounting in primates. The present results offer support for the following two hypotheses: (1) harassment is an attempt to establish a social bond between the performer and the mounting individuals; or (2) harassment occurs in response to mounting by unfamiliar males.     

Male disguised females: costs and benefits of female‐limited dimorphism in a butterfly

1. In polymorphic species, two or more discrete phenotypes co‐occur simultaneously. Sex‐limited polymorphism is a particular case of polymorphism, in which several discrete morphs coexist within one of the two sexes only. Several hypotheses were proposed to explain the existence and the maintenance of sex‐limited polymorphism in insects: (i) the morphs have similar fitness, such as similar survival and expected fecundity, and their frequencies vary randomly (i.e. the null hypothesis); (ii) harassment by males is reduced towards the less common female morph, in this case andromorph females (i.e. the male mimicry and learned mate recognition hypotheses); (iii) morphs differ in predation risk (i.e. the predation hypothesis); or (iv) morphs differ in thermoregulation ability (i.e. the thermoregulation hypothesis). 2. Field observations and experiments were employed to compare the relative support of these hypotheses using dimorphic females of the bog fritillary butterfly. Differences were detected between morphs in survival, fecundity, harassment by males, predation pressure and thermal properties, thereby rejecting the null hypothesis. 3. The lifestyle of both morphs is associated with different costs and benefits, with advantages in daily survival and precocious emergence for the gynomorph females, and advantages in fecundity, predation and male harassment for the andromorph females. Besides, as the bog fritillary butterfly is protandrous (i.e. males emerge before females), the longer development of andromorph females puts them at risk of emerging when all the males are dead. The results raise the question as to which mechanisms control the ontogenetic pathways driving the production of the two morphs (i.e. genetic polymorphism or phenotypic plasticity).     

Racist victimization among children in The Netherlands: the effect of ethnic group and school

Using data from a nation-wide study, this article examines the extent of racist victimization among Dutch, Turkish, Moroccan and Surinamese children (10-13 years) in The Netherlands. The responses indicate that ethnic minority children are more often victim of racist name-calling and social exclusion than are Dutch children. Furthermore, Turkish children are more likely to face racism than Surinamese and Moroccan children. Using multilevel analysis, the effects of multicultural education and the ethnic composition of the school were also examined. If teachers reacted to incidents, this had a positive effect on racism. Furthermore, multicultural education was positively related to reported experiences with racist victimization, but this effect was only found for the Dutch children. In addition, a higher percentage of Dutch pupils was related to less racist victimization of the Dutch and to more victimization of the three ethnic minority groups.     

Three-dimensional waves in excitable reaction-diffusion systems

The eikonal equation [5] for excitable media is generalised to three dimensional systems. The main result of the investigation is the demonstration of the existence of toroidal and twisted toroidal scroll waves in the limit of large values of the major radius of the torus. The existence of a helical wave near the z-axis follows from the eidonal equation but its connection with the twisted toroidal scroll remains to be demonstrated. The eikonal equation also predicts a non-uniform rate of rotation of the cross-sectional spiral wave near the toroidal axis. The notion of geometrical stability is introduced for the case of an expanding sphere; in particular it is shown that a discussion of stability of solutions of the eikonal equation must take into account the possible shift in the origin of the coordinate systems with respect to which patterns are defined. On leave of absence from: The Department of Mathematics, Glasgow College of Technology, Cowcaddens Road, Glasgow G4 0BA, UK     

How ultrasound first came to new England

Diagnostic ultrasound came to Yale in the 1960s and was first developed in Glasgow and London. This story tells us that ultrasound was well-established in the Department of Obstetrics and Gynecology at Yale University School of Medicine in the Yale-New Haven Hospital by 1970. By then it had caught up with the pioneers in New York, Denver, and even Glasgow.     

Ethnic exclusionism in the periphery: The case of Oriental Jews in Israel's development towns

Students of Israeli politics have stressed cultural factors in explaining the success of right‐wing parties among Oriental Jewish voters. My argument is that closer attention must be paid to labour market relations in trying to explain both the anti‐Arab sentiments of Oriental Jews and their proclivity for right‐wing politics.

Oriental Jews compete with both citizen and non‐citizen Palestinians for jobs at the lowest end of the occupational ladder. This competition, I argue, can explain a great deal of their political attitudes. The data to support the argument are derived from an attitude survey conducted in 1988 in eight ‘development towns’ ‐ small working‐class communities populated mainly with Orientals and characterized by high unemployment rates and pervasive social and economic ills. These towns, and the sociologically similar slum neighbourhoods of major cities, provided Rabbi Meir Kahane, Israel's most vociferously racist politician, with the bulk of his electoral support when he was elected to the Knesset in 1984. In 1988 I found support for Kahane in development towns was almost three times as high as it was in 1984. (Kahane was barred from running for the Knesset in 1988 for being a racist.) Analysis of the data showed that this support was disproportionately concentrated among respondents who suffered most from the effects of labour market friction with Palestinian workers.     

Ethnocentrism and ideology*

Ethnic politics is a paradoxical phenomenon in France. While predominant French ideologies and institutional arrangements reinforce a ‘no ethnic politics’ model, there have been substantive challenges to this traditional model, including changes in state practices, and the political emergence of Franco‐Maghrebis and the immigrant association movement. Using the affaire des foulards [headscarves affair] of 1989 as a case‐study, the article seeks to clarify the ethnic politics paradox in France. I argue that the emergence and configuration of ethnic politics in France are being shaped by a series of constraints. These constraints are reflected in the ways in which the headscarves affair was created, defined, and managed. I suggest that the constraints are rooted not only in French ideologies and institutional arrangements, but also in the ‘nationalist logic’ of contemporary French immigration politics, the integrationist strategies of Franco‐Maghrebi groups, and the immigré perspective of the state and political community.     

Health ethics and Indigenous ethnocide

In colonial societies such as Canada the implications of colonialism and ethnocide (or cultural genocide) for ethical decision‐making are ill‐understood yet have profound implications in health ethics and other spheres. They combine to shape racism in health care in ways, sometimes obvious, more often subtle, that are inadequately understood and often wholly unnoticed. Along with overt experiences of interpersonal racism, Indigenous people with health care needs are confronted by systemic racism in the shaping of institutional structures, hospital policies and in resource allocation decisions. Above all, racism is a function of state law – of the unilateral imposition of the settler society law on Indigenous communities. Indeed, the laws, including health laws, are social determinants of the ill‐health of Indigenous peoples. This article describes the problem of Indigenous ethnocide and explores its ethical implications. It thereby problematizes the role of law in health ethics.     

Female polyandry and size‐assortative mating in isolated local populations of the Japanese common toad Bufo japonicus

In anurans, female polyandry under male harassment is distributed across taxa because of external aquatic fertilization. According to the sexual selection theory, male–male competition for access to females is affected by the operational sex ratio (OSR) and population density. The Japanese common toad, Bufo japonicus, is widespread in mainland Japan, and like the European common toad, B. bufo, it engages in explosive breeding. In this study, we observed the breeding behaviour of B. japonicus in isolated local populations for over four years in two breeding ponds with different population sizes and densities: large‐low (L‐pond) and small‐high (S‐pond). We analysed the relative polyandry ratio in egg clutches laid by females and estimated the size‐assortative mating pattern to be an indicator of male–male competition in the two ponds. Both ponds tended to exhibit a size‐assortative mating pattern; however, the frequency of polyandry was different in the two ponds (L‐pond = 20% and S‐pond = 90%). Our results showed that polyandry could occur without multiple amplexus with a high population density, i.e. eggs were often fertilized by free‐swimming sperm in the small shallow pond. We propose that high female polyandry ratios without continuous male harassment are generated because of a male‐biased OSR and a high population density in the small pond. © 2014 The Linnean Society of London, Biological Journal of the Linnean Society, 2014, 113 , 236–242.     

No peace for estrous topi cows on leks

Male coercion, such as harassment, may be considered the thirdmain component in sexual selection alongside male competitionand female choice. In this study on lek-breeding topi antelopes(Damaliscus lunatus), I investigate whether female mating preferenceshave consequences for male investment in harassment and whetherharassing males are more likely to succeed in mating. I thenaddress the question of whether lek evolution in topi can beexplained by harassment avoidance. Judging from mating rate,I found that female topi antelopes in estrus preferred lek malesto resource defenders. In contrast to lek males, resource defendersdemonstrated significantly higher harassment rates before theysucceeded in mating than when they did not, and the precopulatoryharassment rate was significantly higher on resource territoriesthan on lek territories. After mating on resource territories,harassment dropped to low levels. Thus, resource defenders,but not lek males, seem to employ harassment as a strategy tocoerce females to mate against their preference. However, byusing various measures of harassment intensity, overall estrousfemales were found to experience higher harassment levels onlek, and chases by intruders were relatively rare on all territorytypes. These findings suggest that harassment avoidance is unlikelyas an explanation for lek evolution.     

Correlation of serum oestrogen with salivary calcium in post-menopausal women with and without oral dryness feeling

doi: 10.1111/j.1741‐2358.2011.00580.x
Correlation of serum oestrogen with salivary calcium in post‐menopausal women with and without oral dryness feeling Objective: The aim of this study was to verify the association between salivary calcium and serum oestrogen levels with oral dryness in post‐menopausal women. Also, the correlation between these variables was evaluated. Methods: A case‐control study was carried out on 60 selected menopausal women with and without oral dryness feeling (30 as case and 30 as control) conducted in the Department of Oral Medicine and Radiology, Maharishi Markandeshar University, Mullana, India. Paraffin‐stimulated saliva samples were obtained by expectoration. Salivary calcium concentrations were assessed colorimetrically using Arsenazo III reaction. The serum oestrogen concentration was measured using ELISA. Statistical analysis of Student’s t‐test and Pearson correlation was used. Results: There was significant difference in mean values of both salivary calcium concentration and serum oestrogen between case and control groups. The result obtained also showed that an inverse correlation was found between salivary calcium concentration and serum oestrogen levels in both the groups and in total sample size. Conclusion: Oral dryness in post‐menopausal women is associated with high levels of salivary calcium and low levels of serum oestrogen. The concentrations of salivary calcium and serum oestrogen are inversely correlated in post‐menopausal women, regardless of the presence or absence of oral dryness.     

Institutional non‐participation in assisted dying: Changing the conversation

Whether institutions and not just individual doctors have a right to not participate in medical assistance in dying (MAID) is controversial, but there is a tendency to frame the issue of institutional non‐participation in a particular way. Conscience is central to this framing. Non‐participating health centres are assumed to be religious and full participation is expected unless a centre objects on conscience grounds. In this paper we seek to reframe the issue. Institutional non‐participation is plausibly not primarily, let alone exclusively, about conscience. We seek to reframe the issue by making two main points. First, institutional non‐participation is primarily a matter of institutional self‐governance. We suggest that institutions have a natural right of self‐governance which, in the case of health centres such as hospitals or hospices, includes the right to choose whether or not to offer MAID. Second, there are various legitimate reasons unrelated to conscience for which a health centre might not offer MAID. These range from considerations such as institutional capacity and expertise to a potential contradiction with palliative care and a concern to not conflate palliative care and MAID in public consciousness. It is a mistake to frame the conversation simply in terms of conscience‐based opposition to MAID or full participation. Our goal is to open up new space in the conversation, for reasons unrelated to conscience as well as for non‐religious health centres who might nonetheless have legitimate grounds for not participating in MAID.     

REPLY TO COMMENT ON THE LIFE CYCLE AND TOXICITY OF PFIESTERIA PISCICIDA REVISITED1

Free‐living, marine dinoflagellates are typified by a well‐defined, haplontic life cycle with relatively few stages. The most unusual departure from this life cycle is one reported for the heterotrophic dinoflagellate Pfiesteria piscicida Steidinger et Burkholder. This species is alleged to have at least 24 life cycle stages including amoebae and a chrysophyte‐like cyst form ( Burkholder et al. 1992 , Burkholder and Glasgow 1997a ) not previously known in free‐living marine dinoflagellates. Litaker et al. (2002) redescribed the life cycle of P. piscicida from single‐cell isolates and found only life cycle stages typical of free‐living marine dinoflagellates. The discrepancy between these observations and the life cycle reported in the literature prompted a rigorous study to resolve the life cycle of P. piscicida. Burkholder and Glasgow (2002) took exception to this study, arguing that Litaker et al. (2002) misunderstood the life cycle of P. piscicida and ignored recent publications. We present a rebuttal of their criticisms and suggest a simple way to resolve the discrepancies in the P. piscicida life cycle.     

Advances in the understanding of same-sex and opposite-sex sexual harassment

Sexual harassment has traditionally been studied as men's harassment of women. This has led to a lack of knowledge about same sex harassment, and women harassing peers. This has also downplayed the inherent sexual nature of sexual harassment acts. While keeping in mind that sexual harassment is undesirable and causes distress, one needs to consider that many acts that are perceived as unwanted may not primarily be motivated by a wish to derogate but rather by an interest in soliciting short-term sex. In the current study we examined both perpetrators as well as victims of harassment, and specified both sex of perpetrator and target (a total of eight sex constellations). We reproduced the previously found association between unrestricted sociosexuality and sexual harassment in a representative sample of 1326 high school students (57% women). In all regression models sociosexuality outcompeted traditional measures such as porn exposure, rape stereotypes and hostile sexism. Based on the original work we divided the harassment acts into two groups of tactics: sexual solicitation and competitor derogation. Men were particularly subject to derogatory tactics from other men, while women were particularly subject to solicitation from opposite sex peers. Sexual harassment may be understood better from a human sexual strategies perspective, including competitor derogation and mate solicitation. As such, sociosexual orientation predicts both same sex derogation and opposite sex solicitation. The current results highlight the importance of considering the sex of both perpetrator and target. This advanced understanding of the inherently sexual nature of sexual harassment needs to inform future prevention studies. Unrestricted sociosexuality predicts sexual harassment in all constellations better than traditional social science models.     

Constructing racial difference through group talk: an analysis of white focus groups' discussion of racial profiling

Overtly racist statements are socially and politically unacceptable in the USA. Yet black people in the USA continue to experience discrimination and prejudice at both the individual and institutional levels. This paper examines white people's talk about race in focus groups from the North Carolina Traffic Violation Study. The participants discussed race obliquely, by talking about hypothetical behaviour related to crime and police profiling while largely avoiding direct mention of race. At the same time focus group members voice different expectations for white people and black people. By differentiating between behaviours expected from individuals perceived to belong to different racial groups, they reproduced racial difference. Focus group members legitimized racial profiling and did so using language that was largely ‘colour-blind’ and socially acceptable by attributing the disproportionately high rate of stops for black drivers to ostensibly non-racial factors. The groups used mostly colour-blind language, but the result was racializing discourse.     

Managing predators: The influence of kangaroo rat antipredator displays on sidewinder rattlesnake hunting behavior

Upon sensing predators in their vicinity, many prey species perform antipredator displays that are thought to provide information to the predator that deters it from attacking (predator‐deterrent signals). These displays can be complex, incorporating a variety of signaling elements as well as direct physical harassment of the predator. Although the display behaviors in these communication systems are often well characterized, evidence of the efficacy of these displays in deterring predators is limited due to the challenges associated with studying free‐ranging predators. Here, we examine how the anti‐snake signals of the desert kangaroo rat (Dipodomys deserti) influence the ambush hunting behaviors of sidewinder rattlesnakes (Crotalus cerastes). We found that, although desert kangaroo rats incorporate a number of signal elements into their antipredator display, only sand kicking behavior was a significant factor in motivating sidewinder rattlesnakes to cease hunting: high rates of sand kicking led to early abandonment of ambush coils. These results indicate that anti‐snake displays of small mammals may be especially effective at mitigating the threat posed by rattlesnakes when those displays incorporate physical harassment as well as signaling.