Biodemoraphy and genetics of the Berba of Benin

Biondi, G.; Rickards, Olga; Martínez-Labarga, Cristina; Taraborelli, Tea; Ciminelli, Bianca Maria; Gruppioni, Giorgio

doi:10.1002/(sici)1096-8644(199604)99:4<519::aid-ajpa2>3.0.co;2-p

Cited by 11 publications

(6 citation statements)

References 29 publications

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“…Two males showed G6PD variants with normal activity and an electrophoretic mobility slower (93%) than that of the B type. As the same electrophoretic variant has been found in Sicily, in southern Italy (Rickards et al, 1988), and in the Berba population of western Africa (Biondi et al, 1996), we propose an African origin for this allele, which moved to Sicily as a consequence of the uninterrupted gene flow from northern Africa and to the Americas during the slave trade.…”

Section: Genetic Structuresupporting

confidence: 77%

“…Red cell lysates were carried out according to the standard technique and stored at -80°C pending analysis. Red cell and serum markers were typed as described elsewhere (Rickards et al, 1994;Biondi et al, 1996).…”

Section: Genetic Analysismentioning

confidence: 99%

“…PGM1 thermostability, studied for the first time in American populations of African ancestry, was found to be polymorphic as a result of the contribution of Europeans to the gene pool of these hybrid populations. In fact, sub-Saharan Africans and Native Americans are monomorphic for thermostability (Scozzari et al, 1984;Rickards et al, 1994;Biondi et al, 1996).…”

Section: Genetic Structurementioning

confidence: 99%

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Genetic population structure of two African-Ecuadorian communities of Esmeraldas

Martínez-Labarga

Rickards

Scacchi

et al. 1999

Am. J. Phys. Anthropol.

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The genetic structure of two African-Ecuadorian communities, Rio Cayapas and Viche (Esmeraldas province, northwest Ecuador), was studied on the basis of ACP1, ADA, AK1, CA2, ESD, GLO1, G6PD, PGD, and PGM1 subtypes and thermostability, PGM2, HBbeta, F13A, F13B, ORM1, AHSG, C6, C7, and APOC2 gene frequency, and migration data on 255 individuals. The fixation index of Wright (F(ST)), correspondence, and genetic distance analysis were applied to compare the genetic relationships between these communities and other American populations of African ancestry. F(ST) values from the migration data and surname origins suggest that Rio Cayapas is genetically more isolated and shows less mobility and admixture than does Viche. The genetic admixture estimates indicate a large contribution of African genes to the gene pool of both communities (74.3% to 58.4%), whereas the proportion of the Amerindian component differs significantly (14.5% in Rio Cayapas to 27.6% in Viche).

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Section: Genetic Structuresupporting

confidence: 77%

Section: Genetic Analysismentioning

confidence: 99%

Section: Genetic Structurementioning

confidence: 99%

See 1 more Smart Citation

Genetic population structure of two African-Ecuadorian communities of Esmeraldas

Martínez-Labarga

Rickards

Scacchi

et al. 1999

Am. J. Phys. Anthropol.

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“…They represent about 90% of the population in the area of Dassari and refer to themselves as natives [24] (p. 382). In archives and literature the opinion is prevalent that this ethnic group must have arrived from Burkina Faso a long time before the French colonization [25] (p. 533). Many of the Bialaba transited to Togo before finally settling in Benin, where part of the ethnic group can still be found [23] (p. 19).…”

Section: The Bialaba Ethnic Groupmentioning

confidence: 99%

Bialaba Migrants from the Northern of Benin to Nigeria, in Search of Productive Land—Insights for Living with Climate Change

Dreier

Sow

2015

Sustainability

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Abstract:The concept of Environmental Migration has been broadly discussed by the international scientific community. Especially developing countries will have to develop strategies to cope with a rising number of people migrating at national and international levels due to climatic changes and environmental degradation. This paper will critically analyze the term Environmental Migration and sets it in relation to a case study conducted in northwest Benin in August/October of 2013 with Bialaba, analyzing their temporary migration pattern to Nigeria. The aim is to reveal current discussions on the term "Environmental Migration"/"Environmental Migrant" and to discuss its conceptual limits. The qualitative study in this working paper was conducted in the form of 36 interviews with farmers in the Dassari watershed North of Benin and surrounding villages as well as with stakeholders of the local government and NGOs active in the research area. Research results are presented in the following paper to clarify migration motives for the Bialaba of northwest Benin towards Nigeria aiming to stimulate discussions on the topic and to promote new research pathways.

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“…According to Cornevin [68] The Biali, who constitute over 90% of the population in the Dassari area and proclaim themselves to be "natives" and "landowners" [69][70][71], are purported to have arrived there at an unknown time well before French colonization [72,73]. Being among the first migrants from Burkina Faso, the Biali, now having become "natives", are an ethnic group of more than 100,000 people throughout the area of Atacora, with its 549,417 inhabitants [74,75].…”

Section: The Biali Of Materi and Cobly Districtmentioning

confidence: 99%

Migration, Social Demands and Environmental Change amongst the Frafra of Northern Ghana and the Biali in Northern Benin

Sow

Adaawen

Scheffran³

2014

Sustainability

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Abstract:The impacts of environmental change and degradation on human populations, including the possibility of sharp increases in the number of people considered "environmental migrants" have gained considerable attention. Migrating communities may try to distribute their members along particular lines of kinship, gender, marriage and/or services linked to land exploitation and agriculture. This paper explores archives and narratives of African migrants in northwestern Benin and northeastern Ghana. These regions have been marked by severe ecological change and resource deterioration over the years, as well as changes in marital patterns, family relations and customary practices. In the case of Benin, the paper looks at different ethnic groups that migrated from neighboring countries to the study region. It then focuses on the Biali, who undertake marriage journeys after practicing rituals, which are often related to agricultural activities. The Frafra (Ghana), who, in their bid to out-migrate as a livelihood/coping strategy in the advent of environmental deterioration and rainfall variability, are confronted with high bride prices, changing family relations and customary practices. The paper concludes by highlighting socio-cultural changes that ensue in the face of outmigration among different ethnic groups, especially the Biali and Frafra, and the relationship between non-environmental and environmental factors, and mobility strategies. OPEN ACCESSSustainability 2014, 6 376

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Biodemoraphy and genetics of the Berba of Benin

Cited by 11 publications

References 29 publications

Genetic population structure of two African-Ecuadorian communities of Esmeraldas

Genetic population structure of two African-Ecuadorian communities of Esmeraldas

Bialaba Migrants from the Northern of Benin to Nigeria, in Search of Productive Land—Insights for Living with Climate Change

Migration, Social Demands and Environmental Change amongst the Frafra of Northern Ghana and the Biali in Northern Benin

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