Publications (280)
ARTICLE
TOXICITY STUDIES ON THE LEAVES OF SENNA ALATA, A MEDICINAL PLANT FROM BURKINA FASO, IN MICE AND RATS.
Da Filkpièrè Léonard, Ouedraogo Youssoufou, Somé Andouormwine Abel, Sawadogo Touwindséda Aimée, Sawadogo Paténéma and Bayala Balé
The aim of the work is to study the acute and subacute toxicity of the aqueous extract of the leaves of Senna alata (ED-SA). Extracts doses of 500, 1000 and 2000 mg/kg of body weight (bw) were administered to the mice for acute toxicity study. The administration volume was 1 ml/100g. A limit test has been carried out to determine the DL50. For(...)
Acute toxicity, subacute toxicity, rats, mice, Senna alata
ARTICLE
Extended spectrum beta-lactamase and fluoroquinolone resistance genes among Escherichia coli and Salmonella isolates from children with diarrhea, Burkina Faso.
René Dembélé, Ali Konaté, Oumar Traoré, Wendpoulomdé A. D. Kaboré, Issiaka Soulama, Assèta Kagambèga, Alfred S. Traoré, Nathalie K. Guessennd, Awa Aidara- Kane, Amy Gassama-Sow and Nicolas Barro
Background: The emergence and spread of multidrug-resistant gram-negative bacteria (MDR) has become a major
public health concern worldwide. This resistance is caused by enzymes-mediated genes (i.e., extended spectrum
beta-lactamases) that are common in certain Enterobacterioceae species. However, the distribution of these genes is
poorly d(...)
Antibiotics, Resistance genes, qnrB, blaOXA, blaCTX−M
ARTICLE
Extended spectrum beta-lactamase and fluoroquinolone resistance genes among Escherichia coli and Salmonella isolates from children with diarrhea, Burkina Faso
René Dembélé, Ali Konaté, Oumar Traoré, Wendpoulomdé A. D. Kaboré, Issiaka Soulama, Assèta Kagambèga, Alfred S. Traoré, Nathalie K. Guessennd, Awa Aidara-Kane, Amy Gassama-Sow, Nicolas Barro
Abstract
Background
The emergence and spread of multidrug-resistant gram-negative bacteria (MDR) has become a major public health concern worldwide. This resistance is caused by enzymes-mediated genes (i.e., extended spectrum beta-lactamases) that are common(...)
Microbiology, Salmonella, Beta-lactamase, Escherichia coli, Quinolone, Antibiotic resistance, Biology, Multiple drug resistance, Gene, Drug resistance, Diarrhea, Phenotype, Enterobacteriaceae, Virology, Antibiotics, Genetics, Bacteria, Medicine
ARTICLE
Long‐term changes in population size and the age structure and sex ratio of waterbuck in a Sudanian savannah of Burkina Faso
Sidiki Konate, Djidama Sirima, Lankoande Ardjima, Youssouf Sanou, Emmanuel M. Hema, B. Gustave Kabre, Julia E. Fa, Luca Luiselli, Fabio Petrozzi
Abstract The waterbuck (Kobus ellipsiprymnus), though widespread throughout Africa, is suspected to be declining overall. Data on population numbers and structure are lacking for many parts of its range, especially in West Africa, where the subspeciesdefassais found. The aim of the present study was to evaluate the abundance, distribution and(...)
Poaching, Population, Geography, Transect, Sex ratio, Demography, Ecology, Biology
ARTICLE
The seasonal distribution of savannah elephants (Loxodonta africana africana) in Nazinga Game Ranch, southern Burkina Faso
Emmanuel M. Hema, R. F. W. Barnes, Wendengoudi Guenda
Elephant wet and dry season distributions were compared at Nazinga Game Ranch in southern Burkina Faso. Dropping counts along line transects provided an index of occupancy at the end of each season: wet 2006, dry 2007 and dry 2008. We expected that the distribution of elephants would differ between the dry and the wet seasons, with elephants c(...)
Dry season, Transect, Wet season, Geography, Ecology, Biology
ARTICLE
Age-stratified interview campaigns suggest ongoing decline of a threatened tortoise species in the West African Sahel
Luca Luiselli, Godfrey C. Akani, Edem A. Eniang, Massimiliano Di Vittorio, Fabio Petrozzi, Emmanuel M. Hema, Gabriel Hoinsoudé Segniagbeto, Daniele Dendi, Tomas Diagne, Laurent Chirio, Julia E. Fa
Face-to-face interviews with local populations are often used to determine the distribution and population trends of elusive threatened species. Although interviewee responses may suffer from some bias, historical trends in the status of a species can be investigated from age-structured questionnaires. In this paper, we tested this idea by ana(...)
Threatened species, Tortoise, Geography, Ecology, Socioeconomics, Biology, Habitat, Sociology
ARTICLE
The redistribution of thorium, uranium, potassium by magmatic and hydrothermal processes versus surface processes in the Saraya Batholith (Eastern Senegal): Insights from airborne radiometrics data and topographic roughness
Makhoudia Fall, David Baratoux, Mark Jessell, Papa Moussa Ndiaye, Oliver Vanderhaeghe, Jean François Moyen, Lenka Baratoux, Wilédio Marc-Emile Bonzi
Potassium (K), thorium (Th), and uranium (U) are incompatible elements, with various degrees of mobility with respect to hydrothermal alteration or weathering and are taken as tracers for magmatic, fluid-rock interactions and mineralization. These elements may be mapped from airborne radiometric surveys revealing their spatial distribution at(...)
Gamma-ray spectrometry, roughness, geostatistics, variogram
ARTICLE
Hydrogeochemical and pollution characterization of a shallow glauconitic sandstone aquifer in a peri‑urban setting of Bobo‑Dioulasso, southwestern Burkina Faso
Aboubakar Sako, Sâga Sawadogo, Mamadou Nimi and Mahamadou Ouédraogo
Groundwater resources are often exposed to multiple sources of pollution, which may make them unfit for human consumption. As a result, comprehensive geochemical studies on groundwater status and evolution are required for a sustainable management of water resources. In the present study, 38 water samples from hand-dug wells were collected in(...)
Groundwater quality · Non-point source pollution · Chemical weathering · Water–rock interaction · Heavy metals
ARTICLE
Models for estimating aboveground biomass of four dryland woody species in Burkina Faso, West Africa
Philippe Bayen, Florent Noulèkoun, Fidèle Bognounou, Anne Mette Lykke, Adrien N. Djomo, John P. A. Lamers, Adjima Thiombiano
Reliable estimates of carbon stocks for drylands are constrained by a limited number of biomass models for predicting accurately the biomass of dominant tree and shrub species. In this study, 119 trees with a diameter at breast height (dbh) between 3.82 and 45.48 cm were destructively sampled to evaluate aboveground biomass (AGB) allocation an(...)
Biomass (ecology), Diameter at breast height, Allometry, Tree allometry, Shrub, Carbon stock, Biology, Woody plant, Agronomy, Ecosystem, Carbon sequestration, Agroforestry, Botany, Environmental science, Ecology, Biomass partitioning, Climate change
ARTICLE
Unleashing the potential of local captive populations for conservation in the West African savannahs – The case study of the African spurred tortoise
Lankoande Ardjima, Emmanuel M. Hema, Sidiki Konate, Djidama Sirima, B. Gustave Kabre, Fabio Petrozzi, Julia E. Fa, Luca Luiselli
Consulter l'article
Tortoise, Captivity, Geography, Population, Subspecies, Socioeconomics, Ecology, Biology, Demography
ARTICLE
Tortoise ecology in the West African savannah: Multi-scale habitat selection and activity patterns of a threatened giant species, and its ecological relationships with a smaller-sized species
Fabio Petrozzi, Emmanuel M. Hema, Djidama Sirima, Gabriel Hoinsoudé Segniagbeto, Godfrey C. Akani, Edem A. Eniang, Daniele Dendi, Julia E. Fa, Luca Luiselli
Consulter l'article
Tortoise, Threatened species, Ecology, Habitat, Sympatry, Geography, Sympatric speciation, Range (aeronautics), Allopatric speciation, Biology, Population, Demography
ARTICLE
Aboveground biomass allocation, additive biomass and carbon sequestration models for Pterocarpus erinaceus Poir. in Burkina Faso
Moussa Ganamé, Philippe Bayen, Kangbéni Dimobe, Issaka Ouédraogo, Adjima Thiombiano
Efforts to develop allometric models for accurate estimation of biomass and carbon sequestration in Sub-Saharan African savanna ecosystems remain inconclusive. Most available allometric models are not site-specific, and hence do not account for the effects of regional climate variabilities on tree growth and capacity to sequester carbon. In co(...)
Allometry, Biomass (ecology), Tree allometry, Carbon sequestration, Diameter at breast height, Environmental science, Context (archaeology), Forestry, Ecology, Agroforestry, Biology, Biomass partitioning, Geography, Carbon dioxide
ARTICLE
Abondance et distribution des mammifères de la Réserve de Biosphère Transfrontalière du W Niger (RBT W Niger)
YAHOU H., AMADOU O. A., HEMA E., MAHAMANE A.
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RBT W Niger, conservation, gestion de la faune, SMART, distribution de la faune
ARTICLE
Line-transect data may not produce reliable estimates of interannual sex-ratio and age structure variation in West African savannah ungulates
Emmanuel M. Hema, Yaya Ouattara, Maomarco Abdoul Ismael Tou, Giovanni Amori, Mamadou Karama, Luca Luiselli
Adult sex ratios and age structures are important wildlife population parameters, but they have been poorly investigated in ungulate species in West African savannahs. We used line transects to investigate these parameters in 11 ungulates from a protected area in south-western Burkina Faso during the period 2010-2018. We created an empirical m(...)
Ungulate, Transect, Biology, Sex ratio, Ecology, Habitat, Wildlife, Age structure, Population, Demography
ARTICLE
Predicting the structure of turtle assemblages along a megatransect in West Africa
Luca Luiselli, Godfrey C. Akani, Stephanie N. Ajong, Adedolapo George, Massimiliano Di Vittorio, Edem A. Eniang, Daniele Dendi, Emmanuel M. Hema, Fabio Petrozzi, Julia E. Fa
Abstract Understanding large- and small-scale patterns and the determinants of species richness is central for the study of evolutionary mechanisms. The extent to which species richness in local communities is related to larger-scale processes is a pre-eminent topic in ecological and evolutionary research. To investigate how local and regional(...)
Species richness, Ecology, Abundance (ecology), Turtle (robot), Biology, Macroecology, Community structure, Species diversity, Geography