Publications (408)
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
Revisiting biotic and abiotic drivers of seedling establishment, natural enemies and survival in a tropical tree species in a West Africa semi-arid biosphere reserve
Sylvanus Mensah, Florent Noulèkoun, Kangbéni Dimobe, Justin Atanasso, Valère K. Salako, Achille Assogbadjo, Romain Glèlè Kakaï
Biotic and abiotic drivers of seedling establishment and survival are fundamental not only for elucidating processes occurring at plant early life stages, but also for assisting species natural regeneration. Keystone, multipurpose and economically important tree species such as Afzelia africana Sm. are reportedly facing recruitment constraints(...)
Afzelia africana; Biotic neighborhood; Conspecific adult density; Phylogeny; Seedling survival; Semi-arid environment
ARTICLE
Prediction of aboveground biomass and carbon stock of Balanites aegyptiaca, a multipurpose species in Burkina Faso
Sambo Ouédraogo , Oumarou Ouédraogo, Kangbéni Dimobe, Adjima Thiombiano, Joseph I. Boussim
Balanites aegyptiaca (L.) Delile is native to semi-arid regions in Africa where it is a well-known and conspicuous component of savannas. The species is highly preferred by local people because of its high socio-economic, cultural and ecological values. However, the species faces multiple environmental challenges such as desertification and hu(...)
Biomass allocation, Predictive equations, Carbon content, Balanites aegyptiaca, Land use and landcover, Agricultural science, Environmental science
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
ß-Lactams and Quinolones Genetic Resistance in West Africa from 2009 -2018 - A Meta-Analysis
Banfitebiyi GAMBOGU, Florencia Wendkuuni DJIGMA, Amana Metuor DABIRE, Abdoul Karim OUATTARA, Simplice Damintoti KAROU, Yaovi AMEYAPOH, Jacques SIMPORE
The increased resistance of bacteria to antibiotics due to theirmisuse is a major public health concern. The present studyaims to assess the prevalence of ß-lactam and/or quinolone resistance and blaBLSE and Qnr genes in West Africa over aten-year period (2009-2018). PubMed, Google Scholar and African Journal Online have been systematically co(...)
ß-lactam, Quinolones, resistance prevalence, blagene, Qnr gene, West Africa
ARTICLE
Climate change reduces the distribution area of the shea tree (Vitellaria paradoxa C.F. Gaertn.) in Burkina Faso
Kangbéni Dimobe , Amadé Ouédraogo, Korotimi Ouédraogo, Dethardt Goetze , Katharina Stein , Marco Schmidt, Blandine Marie Ivette Nacoulma, Assan Gnoumou, Lassina Traoré , Stefan Porembski, Adjima Thiombiano
Vitellaria paradoxa, the shea tree, an economically important fruit-tree species native to savanna regions is threatened in Burkina Faso due to overexploitation and changing land-use. Furthermore, it remains unclear how climate change will influence its frequency and distribution. We investigated the impact of climate change on the projected s(...)
MaxEnt, Fruit tree, Agroforestry parklands, Bioclimatic variables, Species distribution modeling, Arid climate, Non-timber forest products (NTFPs)
ARTICLE
Crops monitoring and yield estimation using sentinel products in semi-arid smallholder irrigation schemes
Boris Ouattara, Gerald Forkuor, Benewinde J. B. Zoungrana, Kangbeni Dimobe,Jean Danumah, Bachir Saley and Jerome E. Tondoh
The use of earth observation data for crop mapping and monitoring in West Africa has concentrated on rainfed systems due to its pre-dominance in the sub-region. However, irrigated systems, though of limited extent, provide critical livelihood support to many. Accurate statistics on irrigated crops are, thus, needed for effective management and(...)
Non applicable
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
Impact of Climate on Ecology and suitable habitat of Garcinia kola Heckel in Nigeria
Onyebuchi Patrick Agwu , Adama Bakayokoa , Saka Oladunmi Jimoh, Kangbéni Dimobe, Stefan Porembski
Garcinia kola is an indigenous multipurpose tree species, with significant cultural value and medical benefits, commonly found in the tropical rain forest zone of West and Central Africa. The species has been reported to be over-used and are now classified as vulnerable species close to commercial extinction. Hence, requires immediate conserva(...)
Garcinia kola, Multipurpose species, Climate scenarios, Climate model, Bioclimatic
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
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(...)
Environmental science; Biological sciences; Plant biology; Ecology; Additive allometric models; Biomass fraction; Carbon; Savanna; Sub-Saharan Africa; Tree components
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