West African Groups Research Articles

The technological landscape of human and animal transportation: Cases from Northern Nigeria and Southern Côte d’Ivoire

This paper sheds light on a West African technological landscape of the early twentieth century that transcended the boundaries of various West African population groups and natural environments. The conceptual framework of technological landscape employed in this study serves to explore the everyday spaces and details of trade and transport activities of merchants from Northern Nigeria, as well as the engagement of forest dwellers in Côte d’Ivoire in the trade of gold and other natural resources they cultivated, harvested and produced in the forest. Building on archival materials from Nigeria and Côte d’Ivoire, the paper considers various historical actors who have often been neglected in history of technology narratives but who are certainly relevant in West African (transport) history.

Genome-wide diversity analysis suggests divergence among Upper Guinea and the Dahomey Gap populations of the Sisrè berry (Syn: miracle fruit) plant (Synsepalum dulcificum [Schumach. & Thonn.] Daniell) in West Africa.

Although Synsepalum dulcificum is viewed as one of the most economically promising orphan tree crops worldwide, its genetic improvement and sustainable conservation are hindered by a lack of understanding of its evolutionary history and current population structure. Here, we report for the first time the application of genome-wide single nucleotide polymorphism genotyping to a diverse panel of S. dulcificum accessions to depict the genetic diversity and population structure of the species in the Dahomey Gap (DG) and Upper Guinea (UG) regions to infer its evolutionary history. Our findings suggest low overall genetic diversity but strong population divergence within the species. Neighbor-joining analysis detected two genetic groups in the UG and DG regions, while STRUCTURE distinguished three genetic groups, corresponding to the UG, Western DG, and Central DG regions. Application of Monmonier's algorithm revealed the existence of a barrier disrupting connectivity between the UG and DG groups. The Western DG group consistently exhibited the highest levels of nucleotide and haplotype diversities, while that of the Central DG exhibited the lowest. Analyses of Tajima's D, Fu's Fs, and Achaz Y* statistics suggest that while both UG and Central DG groups likely experienced recent expansions, the Western DG group is at equilibrium. These findings suggest a geographical structuring of genetic variation which supports the conclusion of differential evolutionary histories among West African groups of S. dulcificum. These results provide foundational insights to guide informed breeding population development and design sustainable conservation strategies for this species.

Use Patterns, Knowledge Diversity and Drivers for the Cultivation of the Miracle Plant [Synsepalum dulcificum (Schumach & Thonn.) Daniell] in Benin and Ghana.

Despite the growing interest in the miracle plant worldwide due to its numerous applications, the threats and the wild harvest of the species hamper its sustainable utilisation. Moreover, traditional knowledge so far documented on the species is limited to a narrow geographical coverage of its natural distribution range, which is West and Central Africa. This study analysed the use variation and knowledge acquisition pattern of the miracle plant among West African sociolinguistic groups and deciphered the drivers of populations’ willingness and readiness to engage in cultivating the species. Semi-structured interviews were conducted with 510 respondents purposively selected from nine sociolinguistic groups in Benin and Ghana using the snowball sampling approach. Information was collected on respondents’ socio-demographic profile, miracle plant ownership, plant parts used and preparation methods, knowledge of the species bioecology, perceived threats on the species, willingness to cultivate, maximum acreage to allocate to the species and maximum price to pay for a seedling. Descriptive statistics, generalized linear models, classification and regression tree models were used for data analysis. The miracle plant ownership mode depended on the age category. Sociolinguistic affiliation, level of schooling, migratory status and religion significantly affected the number of trees owned. We recorded 76 uses belonging to six use categories. The overall use-value of the miracle plant significantly varied according to the respondent sociolinguistic affiliation, main activity and religion. Men were the main source of knowledge and knowledge is mainly acquired along the family line. Knowledge related to food and social uses was mostly acquired from parents and people of the same generation, while magico-therapeutic and medicinal use-related knowledge were inherited from parents and grandparents. Sociolinguistic affiliation, awareness of taboos and market availability were the most important drivers of respondent willingness to cultivate the miracle plant. While the respondent’s level of schooling and perception of plant growth rate determined the maximum acreage they were willing to allocate to the species in cultivation schemes, their main activity, sociolinguistic affiliation and knowledge of the species time to fruiting drove the maximum purchase price they were willing to offer for a seedling of the species. Our findings provide key information for the promotion of miracle plant cultivation in the study area.

Stable isotopes from the African site of Elmina, Ghana and their usefulness in tracking the provenance of enslaved individuals in 18th- and 19th-century North American populations.

Stable isotope values for historic period human remains from Elmina, Ghana, are compared to isotope data from 18th- and 19th-century North American sites as a test case for examining African origins and identifying first generation Africans in the Mid-Atlantic region of the United States. Stable carbon, nitrogen, and oxygen isotope values were measured in skeletal remains. Values from the cosmopolitan port city of Elmina provide the first available reference data from Africa during this time period and region. These values serve as a proxy for West African groups in general which are statistically compared to Euro-Americans and African Americans. Elmina carbon isotope values are relatively higher than those of North Americans, and African Americans show greater statistical similarity to West Africans. Elmina nitrogen isotope values are higher than those of North Americans. Elmina oxygen isotope values are notably higher than those in all Mid-Atlantic North American sites in this study. Similarity in carbon isotope values between Elmina and African Americans suggests commonalities in food availability or food preferences between these groups. Elevated nitrogen isotope values in Elmina individuals support the documented reliance of the local population on marine dietary resources at this coastal port. While carbon and nitrogen isotopes provide insight into foodways, oxygen isotope data, sourced from drinking water, provide better geographical information. The higher oxygen values from Elmina not only differentiate this group from North American Mid-Atlantic sites, but also make it possible to identify outliers at these sites as potential recent arrivals from West Africa.

Morphological assessment of the Zebu Bororo (Wodaabé) cattle of Niger in the West African zebu framework

Abstract. A total of 357 adult cows and 29 sires belonging to the long-horned Niger Zebu Bororo cattle population were assessed for 13 body measurements and 11 qualitative traits. Data were jointly analysed with 311 cows and 64 sires belonging to other four West African zebu cattle populations, sampled in Burkina Faso and Benin, representative of both the short-horned and the long-horned West African zebu groups using multivariate statistical methods. Besides the other long-horned zebu breed analysed (Zebu Mbororo of Burkina Faso), Zebu Bororo cattle tended to have the highest mean values for all body measurements. Mahalanobis distance matrices further informed that pairs involving Zebu Bororo cattle had the higher differentiation of the dataset. However, contour plots constructed using eigenvalues computed via principal component analysis (PCA) illustrated a lack of differentiation among West African zebu cattle populations at the body measurements level. Correspondence analysis carried out on the 11 qualitative traits recorded allowed for ascertaining a clear differentiation between the Zebu Bororo and the other zebu cattle populations analysed which, in turn, did not show a clear differentiation at the qualitative type traits level. In our data, Zebu Bororo cattle had in high frequency qualitative features such as dropped ears, lyre-shaped horns and red-pied coat colour that are not frequently present in the other West African zebu populations analysed. A directional selection due to a rough consensus of the stock-keepers may be hypothesised. Performance of further analyses to assess the degree in which such breeding differences may be related to genetic or production differences are advised.

Ardras, minas e jejes, ou escravos de "primeira reputação": políticas africanas, tráfico negreiro e identidade étnica na Bahia do século XVIII

Resumo: Em 1715, um viajante francês comentou que Salvador parecia uma "nova Guiné", devido à diversidade de origem dos escravos. Malgrado essa diversidade, Salvador guardava uma alta concentração de africanos escravizados que compartilhavam origens similares. Estes escravos vinham principalmente do golfo do Benim, a segunda maior região escravista na África. O artigo visa discutir a presença dos falantes das línguas gbè (ardras, minas e jejes, principalmente) na Bahia durante o século XVIII. O trabalho de Luís Nicolau Parés, A formação do Candomblé, ilumina a presença de africanos da área gbè na Bahia setecentista. Ainda assim, há a necessidade de investigar as dinâmicas atlânticas que resultaram na deportação de gbè falantes para as Américas à luz de novas fontes. Ao explorar as conexões entre os eventos políticos no golfo do Benim e o tráfico baiano de escravos, o artigo também busca os números e origens dos exportados para a Bahia. Procuro combinar análises quantitativas acerca dos números do tráfico transatlântico de escravos, inventários post mortem e registros de batismo de modo a lançar luz sobre as vidas dos africanos ocidentais na Bahia do século XVIII.

Ethnicity and spatiotemporal parameters of bilateral and unilateral transtibial amputees in a 100-m sprint.

Similar to able-bodied sprinters, most of the medals for the 100-m sprint in past Paralympic Games and IPC Athletics World Championships were dominated by West African (WA) and Caucasian (CC) amputee sprinters, not Asian (AS) sprinters. Although these results indicate differences in sprint performance due to ethnicity, little is known about the ethnicity and spatiotemporal parameters of the 100-m sprint for amputee sprinters. The purpose of this study was to investigate the differences in the spatiotemporal parameters of WA, CC and AS sprinters with bilateral and unilateral transtibial amputations during a 100-m sprint. We analyzed 6 WA, 28 CC, and 10 AS amputee sprinters from publicly available Internet broadcasts. For each sprinter’s run, the average speed, average step length, and step frequency were calculated by using the number of steps in conjunction with the official race time. No significant differences were found in the spatiotemporal parameters of the 100-m sprint for the WA and CC groups. On the other hand, the average speed of the AS group was significantly lower because of its shorter step length during the 100-m sprint. The results suggest that WA and CC sprinters would perform similarly during a 100-m sprint, but AS sprinters would not.Electronic supplementary materialThe online version of this article (doi:10.1186/s40064-016-1983-1) contains supplementary material, which is available to authorized users.

The Reinvention of Household Medicine by Enslaved Africans in Suriname

EnslavedAfricans inSurinamefacednotonlyaharshenvironmentandbrutal conditions,but the challenge of sourcing therapeutically useful plants in an unfamiliar land. Howdid they discovermedicinal herbs in the NewWorld? Literature suggests that slave medicine was already well developed in eighteenth-century Suriname, while herbaria prove that Old World plants were present since 1687. Current vernacular plant names reveal European,Amerindian andAfrican influence. Ethnobotanical research among present-day Afro-Surinamers and related West African groups demonstrates that although most plants used by Afro-Surinamers are Neotropical, preparation methods and applications are still veryAfrican. This illustrates thedurability andpersistenceof householdmedicinedespite thedisruptionduring theMiddlePassage.Afro-Surinamershave reinvented their householdmedicinebyusing familiar OldWorld plants, selecting NewWorld plants that were related to African ones, incorporating knowledge of other ethnic groups and deploying trial and error.

Genetic variation reveals large-scale population expansion and migration during the expansion of Bantu-speaking peoples.

The majority of sub-Saharan Africans today speak a number of closely related languages collectively referred to as ‘Bantu’ languages. The current distribution of Bantu-speaking populations has been found to largely be a consequence of the movement of people rather than a diffusion of language alone. Linguistic and single marker genetic studies have generated various hypotheses regarding the timing and the routes of the Bantu expansion, but these hypotheses have not been thoroughly investigated. In this study, we re-analysed microsatellite markers typed for large number of African populations that—owing to their fast mutation rates—capture signatures of recent population history. We confirm the spread of west African people across most of sub-Saharan Africa and estimated the expansion of Bantu-speaking groups, using a Bayesian approach, to around 5600 years ago. We tested four different divergence models for Bantu-speaking populations with a distribution comprising three geographical regions in Africa. We found that the most likely model for the movement of the eastern branch of Bantu-speakers involves migration of Bantu-speaking groups to the east followed by migration to the south. This model, however, is only marginally more likely than other models, which might indicate direct movement from the west and/or significant gene flow with the western Branch of Bantu-speakers. Our study use multi-loci genetic data to explicitly investigate the timing and mode of the Bantu expansion and it demonstrates that west African groups rapidly expanded both in numbers and over a large geographical area, affirming the fact that the Bantu expansion was one of the most dramatic demographic events in human history.

Phylogeography and Demographic History ofAmblyomma variegatum(Fabricius) (Acari: Ixodidae), the Tropical Bont Tick

The genetic diversity of Amblyomma variegatum (Fabricius) from four Caribbean islands and five African countries was compared by analyzing the sequences of three gene fragments, two mitochondrial (12SrDNA and D-Loop-DL), and one nuclear (intergenic transcribed spacer 2 [ITS2]). Genetic variability of the ITS2 DNA fragment consisted of only uninformative single nucleotide mutations, and therefore this gene was excluded from further analyses. Mitochondrial gene divergences among African populations and between Caribbean and African populations were very low. Nevertheless, the data suggest that A. variegatum is divided into distinct East and West African groups, the western group including all Caribbean samples. Phylogenetic analyses of the 12SrDNA and DL gene sequences showed that the West African A. variegatum clustered in a well-supported monophyletic clade, distinct from eastern paraphyletic lineages. Sequences of A. variegatum from the Caribbean were embedded in the West African clade, which supports the known West African historical origin for these ticks.

Paternal lineages signal distinct genetic contributions from British Loyalists and continental Africans among different Bahamian islands

Over the past 500 years, the Bahamas has been influenced by a wide array of settlers, some of whom have left marked genetic imprints throughout the archipelago. To assess the extent of each group's genetic contributions, high-resolution Y-chromosome analyses were performed, for the first time, to delineate the patriarchal ancestry of six islands in the Northwest (Abaco and Grand Bahama) and Central (Eleuthera, Exuma, Long Island, and New Providence) Bahamas and their genetic relationships with previously published reference populations. Our results reveal genetic signals emanating primarily from African and European sources, with the predominantly sub-Saharan African and Western European haplogroups E1b1a-M2 and R1b1b1-M269, respectively, accounting for greater than 75% of all Bahamian patrilineages. Surprisingly, we observe notable discrepancies among the six Bahamian populations in their distribution of these lineages, with E1b1a-M2 predominating Y-chromosomes in the collections from Abaco, Exuma, Eleuthera, Grand Bahama, and New Providence, whereas R1b1b1-M269 is found at elevated levels in the Long Island population. Substantial Y-STR haplotype variation within sub-haplogroups E1b1a7a-U174 and E1b1ba8-U175 (greater than any continental African collection) is also noted, possibly indicating genetic influences from a variety of West and Central African groups. Furthermore, differential European genetic contributions in each island (with the exception of Exuma) reflect settlement patterns of the British Loyalists subsequent to the American Revolution.

Positive selection of a CD36 nonsense variant in sub-Saharan Africa, but no association with severe malaria phenotypes

The prevalence of CD36 deficiency in East Asian and African populations suggests that the causal variants are under selection by severe malaria. Previous analysis of data from the International HapMap Project indicated that a CD36 haplotype bearing a nonsense mutation (T1264G; rs3211938) had undergone recent positive selection in the Yoruba of Nigeria. To investigate the global distribution of this putative selection event, we genotyped T1264G in 3420 individuals from 66 populations. We confirmed the high frequency of 1264G in the Yoruba (26%). However, the 1264G allele is less common in other African populations and absent from all non-African populations without recent African admixture. Using long-range linkage disequilibrium, we studied two West African groups in depth. Evidence for recent positive selection at the locus was demonstrable in the Yoruba, although not in Gambians. We screened 70 variants from across CD36 for an association with severe malaria phenotypes, employing a case–control study of 1350 subjects and a family study of 1288 parent–offspring trios. No marker was significantly associated with severe malaria. We focused on T1264G, genotyping 10 922 samples from four African populations. The nonsense allele was not associated with severe malaria (pooled allelic odds ratio 1.0; 95% confidence interval 0.89–1.12; P = 0.98). These results suggest a range of possible explanations including the existence of alternative selection pressures on CD36, co-evolution between host and parasite or confounding caused by allelic heterogeneity of CD36 deficiency.

The Relevance of John Steinbeck: A West African Prespective

John Steinbeck remains a very popular novelist in West Africa . His novels represent not only an American version of social protest that has now vanished with the twentieth century, but also an authentic portrayal of social truth that resonates profoundly with twenty-first century West Africa. Not surprisingly, The Grapes of Wrath has achieved the greatest fame for Steinbeck in this region of the world because its thematic preoccupations, scenes, and characters are very relevant and immediate to its readers. The hot, dry Oklahoma summer, the knocking down of the Joads' house, the heartlessness of the bank in forcing everyone unable to pay their bills to leave the land, the exploitation of the workers and tenants by corporations undergoing industrialization and mechanization, and the inability of workers to persuade the owners of the land to let them stay till they can perhaps relocateall these events and situations reflect the difficulties and stifling atmosphere facing twenty-first century West African migrant groups. The hasty impulsiveness of the Joads in deciding at night to get on the road before dawnand drugging Grampa with a bottle of soothin' sirup because he was reluctant to migratemirrors the rashness of West African migrants who move out of their home countries with meager resources and little preparation for their journey. They are driven, like the Joads, by a desperation that is political as well as economic, for some West African countries in the twenty-first century are still characterized by bad governance, dictatorship, and a despotism characterized by heartless mismanagement of God-given resources and total insensitivity to glaring poverty, suffering, and hardship. Dissident

Are there Emerging West African Criminal Networks? The Case of Ghana

This paper situates discussions about emerging African Criminal Networks (ACN) within Ghana specifically, and West Africa generally, and seeks to present the initial results of an empirically based study on the activities of transnational organised criminal (TOCs) groups in Ghana. The paper argues that the nature of state and statehood in Africa and its inability to establish effective regulatory mechanisms contributes to the rise of these particular types of criminal groups. It begins by conceptualising the place of Ghanaian and West African criminal groups within the framework of international crime. Furthermore, it undertakes an in-depth analysis of three types of crimes; namely computer and internet crime, drug trafficking and (artisanal) small arms manufacture and smuggling in Ghana. By applying a set of standard variables and criteria, the paper evaluates the growth of TNCs in these three issue-areas and how such activities potentially undermine public institutions like the Ghana Police Service (GPS), customs, excise and preventive services (CEPS), judiciary, banking and political parties and political institutions in Ghana. Finally, it seeks to offer an explanatory framework for the growth and acceptance by local communities of the activities of organised crime in Ghana by situating this within a cultural ethos and the social welfare roles played by those involved in such crimes.

The question of ‘race’ in the pre-colonial southern Sahara

One of the principle issues that divide people in the southern margins of the Sahara Desert is the issue of ‘race.’ Each of the countries that share this region, from Mauritania to Sudan, has experienced civil violence with racial overtones since achieving independence from colonial rule in the 1950s and 1960s. Today's crisis in Western Sudan is only the latest example. However, very little academic attention has been paid to the issue of ‘race’ in the region, in large part because southern Saharan racial discourses do not correspond directly to the idea of ‘race’ in the West. For the outsider, local racial distinctions are often difficult to discern because somatic difference is not the only, and certainly not the most important, basis for racial identities. In this article, I focus on the development of pre-colonial ideas about ‘race’ in the Hodh, Azawad, and Niger Bend, which today are in Northern Mali and Western Mauritania. The article examines the evolving relationship between North and West Africans along this Sahelian borderland using the writings of Arab travellers, local chroniclers, as well as several specific documents that address the issue of the legitimacy of enslavement of different West African groups. Using primarily the Arabic writings of the Kunta, a politically ascendant Arab group in the area, the paper explores the extent to which discourses of ‘race’ served growing nomadic power. My argument is that during the nineteenth century, honorable lineages and genealogies came to play an increasingly important role as ideological buttresses to struggles for power amongst nomadic groups and in legitimising domination over sedentary communities. ‘Race’ was a corollary of the heightened ideological importance of lineage.

Genetic structure in four West African population groups

BackgroundAfrica contains the most genetically divergent group of continental populations and several studies have reported that African populations show a high degree of population stratification. In this regard, it is important to investigate the potential for population genetic structure or stratification in genetic epidemiology studies involving multiple African populations. The presences of genetic sub-structure, if not properly accounted for, have been reported to lead to spurious association between a putative risk allele and a disease. Within the context of the Africa America Diabetes Mellitus (AADM) Study (a genetic epidemiologic study of type 2 diabetes mellitus in West Africa), we have investigated population structure or stratification in four ethnic groups in two countries (Akan and Gaa-Adangbe from Ghana, Yoruba and Igbo from Nigeria) using data from 372 autosomal microsatellite loci typed in 493 unrelated persons (986 chromosomes).ResultsThere was no significant population genetic structure in the overall sample. The smallest probability is associated with an inferred cluster of 1 and little of the posterior probability is associated with a higher number of inferred clusters. The distribution of members of the sample to inferred clusters is consistent with this finding; roughly the same proportion of individuals from each group is assigned to each cluster with little variation between the ethnic groups. Analysis of molecular variance (AMOVA) showed that the between-population component of genetic variance is less than 0.1% in contrast to 99.91% for the within population component. Pair-wise genetic distances between the four ethnic groups were also very similar. Nonetheless, the small between-population genetic variance was sufficient to distinguish the two Ghanaian groups from the two Nigerian groups.ConclusionThere was little evidence for significant population substructure in the four major West African ethnic groups represented in the AADM study sample. Ethnicity apparently did not introduce differential allele frequencies that may affect analysis and interpretation of linkage and association studies. These findings, although not entirely surprising given the geographical proximity of these groups, provide important insights into the genetic relationships between the ethnic groups studied and confirm previous results that showed close genetic relationship between most studied West African groups.

Travel Writing, Experiences, and Silences: What is Left Out of European Travelers' Accounts—the Case of Richard D. Mohun

Recent contributions to this journal have taken various approaches to travelers's accounts as sources of African history. Elizabeth de Veer and Ann O'Hear use the travel accounts of Gerhard Rohlfs to reconstruct nineteenth-century political and economic history of West African groups who have escaped scholarly attention. But essentially they use Rohlfs' work as he intended it to be used. Gary W. Clendennen examines David Livingstone's work to find the history under the propaganda. He argues that, overlooking its obvious problems, the work reveals a wealth of information on nineteenth-century cultures in the Zambezi and Tchiri valleys. Unfortunately, Clendennen does not use this source for these reasons. He uses it instead to shed light on the relationship between Livingstone and his brother.John Hanson registers a basic distrust of European mediated oral histories recorded and written in the African past. He draws attention to the fact that what were thought to be “generally agreed upon accounts” may actually reflect partisan interests. Hanson dramatically demonstrates how chunks of history, often the history of the losers, are lost, as the history of the winners is made to appear universal. Richard Mohun can be seen to represent the winners in turn-of-the-century Central Africa. His account is certainly about himself. I attempt, though, to use his account to recover some of the history of the losers, the Africans, which Mohun may have inadvertently recorded.My question is double; its two parts—one historical, one methodological—are inextricably interdependent. The first concerns the experience of the people from Zanzibar who accompanied, carried, and worked for Richard Dorsey Mohun on a three-year (1898-1901) expedition into Central Africa to lay telegraph wire. The second wonders how and how well the first question can be answered using, primarily, the only sources available to me right now: those written by Mohun himself.

Antibodies to the 65 kDa mycobacterial stress protein in west Africans with rheumatoid arthritis, tuberculosis and malaria.

We have studied IgG antibodies to recombinant mycobacterial 65 kDa heat-shock protein in West African rheumatoid arthritis (RA) patients and local control groups, including those with tuberculosis or malaria. Mean levels were higher among the patients with RA than among healthy controls, but did not achieve statistical significance. Our findings may relate to the level of mycobacterial exposure in West Africa.

Male and Female Artistry in Kalabari Dress

Male and Female Artistry in Kalabari Dress

Fertility Control in Africa

Fertility control is examined in 2 pastoral societies in Africa: the Kipsigis and the Fulani. The Kipsigis have experienced considerable fertility change during the 20th century. Patterns have been less altered among the Fulani but recent drought and resettlement may have initiated changes that are not yet documented. The model of fertility regulation that can be constructed for most of tropical Africa contains elements of the broad cultural patterns that exist throughout the reion but these broad patterns contain significant local variations as demonstrated by examination of the Kipsigis and the Fulani. The Kipsigis live mainly in Kericho district Kenya. Together with the Nandi their present northern neighbors the Kipsigis probably migrated southward during times of drought and famine. Fertility among the traditional pastoral Kipsigis appears to have been well below its potential possibly averaging fewer than 5 children per woman. The most significant regulation mechanism was a late marriage age that was associated with the pastoral economy controlled by elderly men. Within marriage fertility levels were regulated by child spacing similar to that in West and Central Africa. In both instances fertility was designed to maintain a system of social and economic authority rather than to control population growth. The Fulani one of the most distinctive peoples of tropical Africa are basically cattle pastoralists and are scattered across the vast Sahel/savanna zone of West Africa. The Fulani share the African tradition of cultural preference for large families. Much of Fulani culture at 1 level of analysis seems to be oriented toward maximizing the desire for children. Almost all Fulani women marry. Marriage occurs at an early age between 15-16 years for women and between 20-25 years for men. Because women continue to attempt to bear children until menopause rather than cease upon becoming grandmothers Fulani women are in a potentially reproductive status for 25-30 years. The period of breastfeeding is long but there is no postpartum taboo beyond the 40 days specified in the Koran. Theoretically rates for the Fulani should be higher than those of other West African groups but that is not the case. A recent survey gave the average complete size of a Fulani family at 4.9 persons the lowest figure for any group in the country. A pastoral way of life forces spatial separation of spouses while the precarious and fragile physical environment of the Sahel and its effects on livestock produce stress that often leads to marital disruption and divorce. In addition sexually transmitted diseases cause sterility. These factors impede the realization of fertility aspirations. If the break from dependence on pastoralism signals a shift to a sedentary lifestyle fertility among the Fulani will probably increase. The Fulani have not been as affected by Westernization as have the Kipsigis. The Sahelian drought of 1968-74 set forces in motion in motion that may have longterm effects on Fulani demographic patterns.