‘I'm black and I'll always be that way’: black identities through the lens of interracial intimacy

Early research on black racial identity development cautioned that close relationships with whites signalled an alienation from blackness and a subconscious acceptance that ‘white is right’. These assumptions mirrored popular media and political discourse suggesting that romantic relationships outside of one's racial group reflect a devalued or inauthentic racial self. More recent scholarly research presents a mixed picture about the role of interracial intimacy on black racial identities. Using in-depth qualitative narratives with forty-two interracially partnered African Americans, this article explores whether interracial intimacy recasts the meaning or intensity of black racial identities. Findings affirm that black racial identities are heterogeneous – some partners experienced blackness as a central, fundamental identity while others possessed ambivalent attachments to blackness. Across these experiences, however, adult interracial intimacy had at most an incremental influence on racial identity. Interracial contact during adolescence was far more influential because it allowed blacks to develop dimensions of white cultural identity.     

Population structure and ecology of the African buffalo (Syncerus caffer Sparrman, 1779) in Chebera Churchura National Park,Ethiopia

An investigation of population structure and ecology of the African buffalo (Syncerus caffer Sparrman, 1779) was carried out in the Chebera Churchura National Park, Ethiopia during the wet and dry seasons of 2005–2006. Sample counts of African buffaloes were carried out in an area of 1,215 km². The estimated population of buffalo was 2,617 individuals. Males comprised 35.0%, while females 52.8% of the population. The remaining 12% of the population was young of both sexes and of all ages of unknown sex. It was difficult to categorize the young into male and female in the field, as their primary sexual characteristics were not easily visible. Male to female sex ratio was 1.00 : 1.51. Age structure was dominated by adults, which constituted 72.06% of the total population. Subadults comprised 22.02%, and young accounted for 5.9% of the population. Larger herds of up to 27 individuals were observed during the wet season and smaller herds of eight individuals during the dry season. The mean herd size during wet and dry seasons was 24.81 and 7.77, respectively. The African buffaloes were distributed in four habitat types such as grasslands, woodlands, montane forests and riverine habitat in the study area. They were observed more in the riverine vegetation types during the dry season. Relative abundance of food resources, green vegetation cover and water availability in the area were the major factors governing their distribution in the present study area. They spent a greater proportion of the time in feeding and resting/ruminating activities. On the average, 49.7% of the daytime was spent in feeding, and 38.75% of the day on resting (lying down and standing). Morning and the late afternoon activity peaks were more pronounced during the dry season than the wet season.     

Gender and the dynamics of mobility: reflections on African migrant mothers and ‘transit migration’ in Morocco

By describing the everyday lives of African migrant mothers and their children in Morocco, this paper highlights how migration and ‘immobility’ in so-called ‘transit countries’ are gendering and gendered experiences. Relying on migrants' narratives, the paper demonstrates how migrants' transitions to motherhood create both specific and gendered spaces for agency and particular and gendered constraints upon agency that shape women migrants' mobility dynamics in space and time.     

Being black,foreign and woman: African immigrant identities in the United States

This paper contextualizes racial and ethnic identities in shaping African women’s work lives in the USA. While the literature on black immigrant groups has posited that ethnic identities are often deployed to shield black immigrants from racism, my findings indicate that for a group of African women, their racial and ethnic identities are viewed as potential sources of discrimination. As black immigrant women from middle-class backgrounds in their home countries, they also articulate experiences with racism and downward social and occupational mobility. Accounting for how race and ethnicity intersect in the lives of black immigrant groups can nuance our understanding of racial identities and highlight diversity in experiences among national and regional groups. Focusing on particular health-care settings further suggests the importance of professional contexts in shaping the identity formations of recent black immigrants.     

The minority culture of mobility of France's upwardly mobile descendants of North African immigrants

This article examines the challenges associated with the experience of upward educational mobility among descendants of North African immigrants in France. Drawing on in-depth, open-ended interviews with students and graduates of the prestigious grandes écoles, it sheds light on three specific ways in which class-based and ethno-racial inequalities intersect to shape the mobility costs that our respondents outline: (1) feelings of isolation resulting from being one of the only bursar recipients and ethno-racial minorities of their schools; (2) perceived conflation of their minority background with counter-elite dispositions; and (3) difficulties of adjusting to a student life reflecting the cultural styles of the predominantly white, upper-middle-class group. The article suggests that our respondents deploy a minority culture of mobility rooted in class and ethno-racial processes to overcome these challenges. It finally discusses implications for future research, stressing the need to examine the intersecting effect of multiple social categories in informing complex mobility experiences.     

Overground versus underground: a genetic insight into dispersal and abundance of the Cape dune mole‐rat

Molecular methods are commonly used to investigate cryptic populations that are difficult to locate or observe directly. The population dynamics of many subterranean organisms have been overlooked, at least in part, as a result of the absence of appropriate molecular markers. Recent studies in African mole‐rats have raised questions about the modes of dispersal and mate acquisition. In the present study, we apply a suite of 25 microsatellite markers to test the overground/underground dispersal hypotheses. Using these data, we also apply an approach to estimate population size and look for signal of demographic expansion or contraction. The genetic data suggest that the same breeding population extends between locations (approximately 50 km), with elevated inbreeding coefficients suggestive of some degree of isolation of the urban location. Low genetic differentiation between study sites supports the proposed high levels of vagility of dispersing individuals overground. We find a signal of long‐term population decline of Bathyergus suillus in this region. Their adherence to mesic conditions potentially recommends B. suillus to be of utility in monitoring the proposed climate‐induced desiccation of the Western Cape. Of potential interest is the discovery of a second divergent population at the rural location, with microsatellite data suggesting contemporary reproductive isolation and a mitochondrial divergence putatively dated at approximately 0.6 Mya. © 2013 The Linnean Society of London, Biological Journal of the Linnean Society, 2013, 110 , 890–897.     

Factors affecting the bionomics of the eastern African egg parasitoid Trichogramma bournieri Pintureau & Babault (Hymenoptera: Trichogrammatidae)

The trichogrammatid Trichogramma bournieri Pintureau & Babault is a polyphagous parasitoid of eggs of several cereal stemborer species in eastern Africa. The effects of host species, host age and duration of host deprivation on the performance of the parasitoid were studied in the laboratory. Host acceptance and suitability were tested using five stemborer species. The noctuids Sesamia calamistis Hampson, Sesamia nonagrioides (Lefebvre), Busseola fusca (Fuller) the crambid Chilo partellus (Swinhoe) and the pyralid Eldana saccharina Walker were successfully parasitized by T. bournieri. Parasitism, number of progeny and developmental time varied significantly with host species. The eggs of S. calamistis and B. fusca were the most suitable, whereas those of E. saccharina were the least suitable. While parasitism and number of progeny tended to decrease with age of hosts, there were no significant differences in sex ratio. Longevity of the parasitoid increased with increase in deprivation of hosts from 0 to 12 days. Average lifetime fecundity per female decreased, indicating resorption of eggs.     

State and evolution of the African rainforests between 1990 and 2010

This paper presents a map of Africa''s rainforests for 2005. Derived from moderate resolution imaging spectroradiometer data at a spatial resolution of 250 m and with an overall accuracy of 84%, this map provides new levels of spatial and thematic detail. The map is accompanied by measurements of deforestation between 1990, 2000 and 2010 for West Africa, Central Africa and Madagascar derived from a systematic sample of Landsat images—imagery from equivalent platforms is used to fill gaps in the Landsat record. Net deforestation is estimated at 0.28% yr⁻¹ for the period 1990–2000 and 0.14% yr⁻¹ for the period 2000–2010. West Africa and Madagascar exhibit a much higher deforestation rate than the Congo Basin, for example, three times higher for West Africa and nine times higher for Madagascar. Analysis of variance over the Congo Basin is then used to show that expanding agriculture and increasing fuelwood demands are key drivers of deforestation in the region, whereas well-controlled timber exploitation programmes have little or no direct influence on forest-cover reduction at present. Rural and urban population concentrations and fluxes are also identified as strong underlying causes of deforestation in this study.     

Multiple nuclear and mitochondrial DNA sequences provide new insights into the phylogeny of South African Lacertids (Lacertidae,Eremiadinae)

Eremiadinae, one of three subfamilies of Lacertidae, are distributed throughout Asia and Africa. Previous phylogenetic studies suggested that one of the main groups of Eremiadinae (the Ethiopian clade) consist of two clades with predominately East‐African and South‐African distribution. Yet, especially the latter one, which includes the genera Pedioplanis, Meroles, Ichnotropis, Tropidosaura and Australolacerta, was not well supported in the molecular phylogenetic analysis. In this study, we analysed the phylogenetic relationships among the genera of the ‘South African clade’ to assess whether this group actually forms a highly supported clade and to address questions concerning the monophyly of the genera. We sequenced sections of the widely used mitochondrial genes coding for 16S rRNA, 12S rRNA and cytochrome b (altogether 2045 bp) as well as the nuclear genes c‐mos, RAG‐1, PRLR, KIF24, EXPH5 and RAG‐2 (altogether 4473 bp). The combined data set increased the support values for several nodes considerably. Yet, the relationships among five major lineages within the ‘South African clade’ are not clearly resolved even with this large data set. We interpret this as a ‘hard polytomy’ due to fast radiation within the South African lacertids. The combined tree based on nine marker genes provides strong support for the ‘South African Clade’ and its sister group relationship with the ‘East African Clade’. Our results confirm the genus Tropidosaura as a monophylum, while Ichnotropis is paraphyletic in our trees: Ichnotropis squamulosa appears more closely related to Meroles than to Ichnotropis capensis. Furthermore, the monophyly of Meroles is questionable as well. Based on our results, I. squamulosa should be transferred from Ichnotropis into the genus Meroles. Also, the two species of Australolacerta (A. australis and A. rupicola) are very distantly related and the genus is perhaps paraphyletic, too. Finally we propose a phylogeographical scenario in the context of palaeoclimatic data and compare it with a previously postulated hypothesis.     

Potential role of metabolomics in the improvement of research on traditional African medicine

The global market for herbal medicine is growing steadily. The usage of herbal medicine is particularly common in many parts of Africa; the World Health Organization estimates that approximately 80% of Africans rely on traditional African medicines (TAMs) for treating various diseases. TAMs hold promise in preventive treatment, early disease intervention and personalized medicine. However, clinical integration of TAMs is restricted due to limited information concerning their characterization. Presently, many studies on TAMs utilize a reductionist approach, making it extremely difficult to understand the holistic modifying effects that these therapeutic agents may have on biological systems. Fortunately, emerging technologies such as metabolomics platforms adopt a ⿿top-down⿿ strategy that permits a holistic evaluation of the components, metabolic pathways and biomarkers modified by TAMs, which can aid in addressing common concerns over safety and toxicity, while also ensuring that quality control standards are met. Metabolomics approaches may also be beneficial for advancing our understanding of the efficacy and mechanism of action of TAMs, and may contribute to the advancement of research and drug discovery, early diagnosis, preventive treatment and TAMs-driven personalized medicine in Africa. This review also considers the main challenges that may hinder the adoption and integration of metabolomics approaches in research on TAMs in Africa and suggests possible solutions.