Ouinsavi Christine

Ouinsavi Christine
University of Parakou | UP · Laboratory of Forestry Studies and Research

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65
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Publications

Publications (65)
Article
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Afzelia africana (Fabaceae) is one of the multipurpose plants native in tropical Africa, mainly used for its medicinal properties, fodder value and the quality of its wood. However, the species is highly threatened due to several factors including regeneration problems. This study aimed to assess the effect of ectomycorrhizal inoculation, organic a...
Article
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Owing to decades of inordinate exploitation of African rosewood (Pterocarpus erinaceus) and threats to its sustainability, multiple efforts by researchers to ensure its restoration and conservation have led to a proliferation of research and knowledge. The multiplicity of research and knowledge has left a gap in developing a coherent conservation a...
Chapter
L’Iroko (Milicia excelsa (Welw.) C.C.Berg) est une espèce ayant une grande importance économique pour son bois et qui présente une grande utilité pour les populations locales comme une plante médicinale et sacrée. Malgré une importance économique reconnue depuis plus de deux siècles et une diminution sensible des densités de population de M. excels...
Article
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Pterocarpus erinaceus Poir, a spontaneous species from Guinean savannahs of West Africa, functions as socioeconomic and cultural livelihood in rural areas of Benin. This study improved the knowledge of people about the uses of P. erinaceus organs connected to the sociolinguistic diversity in Benin, intending to enhance the pathways of conservation...
Article
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La compréhension des facteurs influençant les phénophases des plantes d’importance socio-économique est essentielle pour leur gestion durable. Cola millenii est un arbre dont les fruits sont comestibles. La présente étude a analysé les différentes phénophases de l’espèce le long d’un gradient climatique au Bénin. Les évènements de feuillaison, flor...
Preprint
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Background Pterocarpus erinaceus Poir. is a spontaneous species from the three ecological zones of Benin. It is multipurpose species integrated to the socio-economic and cultural livelihood of populations, especially in rural areas. This study examined the different uses made of the organs of Pterocarpus erinaceus in Benin in relation to sociolingu...
Article
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Ricinodendron heudelotii (Euphorbiaceae) is an oilseed plant with high socio-economic value. Unfortunately, the seed’s tegumentary dormancy causes low germination and severely limits its large-scale spread. Germination and juvenile growth of eleven provenances from Benin and Central African Republics were tested under four different pre-treatments...
Article
Cola millenii K. Schum. is a wild edible fruit tree of high socio-economic importance in Sub-Sahara Africa. Its fruit pulp is used for food and nutritional purposes. Other parts of the tree are locally used against several diseases. Given the current threats to natural stands of this species, its domestication has been suggested as one of the metho...
Article
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Pterocarpus erinaceus Poir. is a woody species with high economic value, endemic to West Africa. Anthropogenic pressures, seminal production reduction, the rapid loss of seeds' germinal capacity, and especially the seedlings' difficulty to develop, endanger the regeneration and the survival rate of stands. This study aims to deepen scientific knowl...
Article
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To study the genetic diversity and structure of the forest species Pterocarpus erinaceus Poir., seventeen polymorphic nuclear microsatellite markers were isolated and characterized, using next-generation sequencing. Three hundred and sixty-five (365) individuals were analyzed within fifteen (15) West African populations. The number of alleles for t...
Article
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Mansonia altissima A. Chev., a redwood producer species in tropical Africa, occurs as one small, isolated population in a highly anthropized landscape in Republic of Benin. We accessed the landscape pattern and population status to inform restauration action for the species. We established 20 one-ha permanent plots divided in 320 subplots (25 m × 2...
Article
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Pterocarpus erinaceus is a native tree species of the Guineo-Sudanian and Sudano-Sahelian zones where natural stands are under constant pressure and heavily exploited for timber, animal feeding and others uses. A part from the overexploitation, climate change could also become a serious threat to the species natural distribution. For that purposes,...
Article
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Haematostaphis barteri is a savannah species of tropical Africa that has multiple uses and plays an important socioeconomic role for rural populations. It is a species from tropical Africa, ranging from Côte d'Ivoire to Sudan, passing through Ghana, Togo, Benin, Nigeria, Cameroon and Tchad. In Benin, It is a confined species along the Atacora chain...
Article
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Key message Mansonia altissima A. Chev. has an aggregated distribution at the juvenile life stage that becomes random at the mature life stage. Ceiba pentandra (L.) Gaertn could play the role of nurse plant in the management of M. altissima populations providing them a moderate forest shade in large gaps for early growth. M. altissima and Triplochi...
Article
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L'évaluation et le suivi des espèces forestières constituent une source fondamentale d'informations pour la mise en place des stratégies de conservation efficaces et adaptées de ces espèces. La présente étude a pour objectif de déterminer la caractérisation structurale des peuplements naturels de D. senegalense J.F. Gmel. au Bénin. Quarante-huit pl...
Article
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Understanding species morphological variation across geographical ranges can serve as a first step for germplasm collection and the conservation of genetic resources. The morphological variability of Haematostaphis barteri Hook. F. (Anacardiaceae) in Benin (West Africa) was studied, using 11 traits related to panicles, fruits, leaves and leaflets....
Article
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Abstract: Detarium senegalense is a priority fruit species exploited but little known and under-valued in West African countries. The purpose of this study on the bibliographic synthesis is to take stock of the various works and aspects addressed on the species in order to highlight the lines of research that are still new for better enhancement of...
Poster
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This work proposes a strategy to identify areas for long term conservation and restoration, taking into account potential climate change effects, for native tree species at country scale.
Article
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In order to develop a viable and large-scale Pterocarpus erinaceus seedling production strategy for reforestation, stem cuttings test was carried out using 15 cm length 1.5 to 3.5 cm diameter cuttings, harvested from healthy trees at approximately the same levels on young branches in the morning time. Various levels of Indol Acetic Acid (IAA) dose,...
Chapter
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Pterocarpus erinaceus is an endemic and threatened plant species in arid and semiarid zones of West Africa and is highly exploited for timber, animal feeding, and various medicinal uses. The species is currently native to the Guinean forest-savannah mosaic ecoregion and reported from Senegal to Cameroon. The values of the main characteristics of th...
Article
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Although a number of wild fruit trees in Benin have been studied, others, such as Cola millenii K. Schum., are still relatively undocumented. The aim of this study was to collect ethnobotanical knowledge on C. millenii among socio-cultural groups in Benin. Individual structured interviews were conducted with 1 009 people. Relative frequency of cita...
Article
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Crassocephalum crepidioides (Benth.) S. Moore is a plant consumed as a green leaf vegetable in several regions of Benin. But the species is still not domesticated and is harvested from wild according to the seasons. The plant remains as an undervalued food plant in Benin. This study aims to find the optimal conditions for nursery production of this...
Article
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This study, conducted in south-east Benin, aims to provide practical information on the optimal conditions for successful propagation of stem cuttings of Pterocarpus erinaceus Poir. (Fabaceae), a real alternative to its regeneration and domestication. A trial was conducted to evaluate the effect of different doses of Acid Naphthalene Acetate (ANA)...
Article
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This study aims to evaluate ethnobotanical knowledge that populations hold and income from the exploitation of the breadfruit (Artocarpus communis) in southern Benin. The data collected by interview and focus group are related to the uses of Artocarpus communis, harvest methods and the habitat of specie. The results show that A. communis is used fo...
Article
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Agroforestry have immense benefits for the environment and the farmer. Indeed, in an agroforestry system, the planted or preserved trees produce litter that releases after decomposition into the soil, biogenic elements as natural fertilizer suitable for cropping. But, several factors affect the biomass productivity in these systems. In this study,...
Article
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An old yet appealing fact in conservation biology is the potential of sacred groves (SGs) and forest reserves (FRs) to harbor considerable biodiversity. Although fragmentation effects have been extensively investigated in several studies, the specific context pertaining to SG has rarely been discussed. Using data from two sites (Kétou and Pobè) in...
Article
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L’objectif de l’étude est de recenser les utilisations locales de M. altissima et son importance socio-culturelle au Bénin. Trois groupes ethniques ont été choisis dans les 5 villages riverains de la forêt sacrée Kouvizoun. Trente personnes ont été interrogées dans chaque groupe ethnique. Les valeurs d’usages des organes calculées par groupe ethniq...
Article
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ABSTRACT: This article appears as a review on habitats fragmentation. It clarified key concepts related to fragmentation and summarized methods and tools used for assessing fragmentation. Results revealed that fragmentation understanding was perceived at different ways. However, there is an intersection between all definitions we met in the literat...
Article
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Objectif : La présente étude vise à (i) identifier les types de groupement végétaux à l’origine de la création des forêts sacrées suivant la structuration de Juhe-Beaulaton (2006), (2) décrire les périodes probables de sacralisation des forêts sacrées et (3) analyser les déterminants de la nucléarisation des forêts sacrées. Méthodologie et résultat...
Article
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RESUME L’importance socio-économique de H. barteri a été étudiée au Nord-Ouest du Bénin sur la base d’enquêtes ethnobotanique et socio-économique administrées respectivement sur 230 et 100 personnes des deux sexes et choisies au hasard dans les trois groupes socioculturels majoritaires du milieu d’étude à savoir les Waaba, les Bètammaribè et les Na...
Article
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This study was to evaluate the traditional medicinal use of Phyllanthus amarus in Northern of Benin among three majority ethnic groups and process to phytochemical and toxicological analyses of leaves from three provenances. A semi structured questionnaire was addressed to the questioned people. Accompanied with a translator, the questions are indi...
Article
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1 RESUME L'objectif de l'étude est de recenser les utilisations locales de M. altissima et son importance socio-culturelle au Bénin. Trois groupes ethniques ont été choisis dans les 5 villages riverains de la forêt sacrée Kouvizoun. Trente personnes ont été interrogées dans chaque groupe ethnique. Les valeurs d'usages des organes calculées par grou...
Article
Full-text available
The structural characterization of Prosopis africana of Benin was studied on the basis of forest inventory conducted in three different vegetation types (savannah, fallow, and field) and three climate zones. The data collected in 139 plots of 1000 m 2 each related to the diameter at breast (1.3 m above ground), total height, identification, and mea...
Article
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Chrysophyllum albidum is a tropical forest species which plays tremendous socioeconomic role in west Africa because of its fruits large comsuption and trade. Morphological variation and ecological structure of Chrysophyllum albidum G. Don were assessed in Benin in order to contribute to the species domestication. Dendrometric parameters such as dia...
Article
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The morphological variability of Prosopis africana in its natural range (which includes three climate zones: Guinean zone, Sudano-Guinean zone and Sudanese zone) of Benin was studied on the basis of forest inventory carried out in three different vegetation types (savannah, fallow and field). The data recorded in 139 plots of 1000 m 2 each related...
Article
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The current study examines the process of decomposition of mineral elements and of mineralomass contained in organic waste. After twelve weeks’ observation, in a complete hazardous block of appliance to a treatment repeated 12 times, the results revealed that animal garbage have the higher contents in calcium (29.98% of the dry material), in nitrog...
Article
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La dynamique spatio-temporelle des simulies, vecteurs de l’onchocercose cécitante en fonction de la dynamique de la végétation a été étudiée dans quatre localités bioécologiques de son aire de répartition au Bénin entre les années 1990 et 2010. Il ressort de ces travaux que l’effectif des simulies (Simulium damnosum) a augmenté par région dans le t...
Article
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RESUME L'influence des facteurs climatiques sur les caractéristiques technologiques de dix (10) principales essences de bois d'oeuvre et de service a été étudiée dans la Commune de Parakou au Nord du Bénin. Les données collectées sur chacune de ces espèces sont relatives à l'infradensité, les retraits (retrait volumique, tangentiel, radial et axial...
Article
Full-text available
RESUME L'influence des facteurs climatiques sur les caractéristiques technologiques de dix (10) principales essences de bois d'oeuvre et de service a été étudiée dans la Commune de Parakou au Nord du Bénin. Les données collectées sur chacune de ces espèces sont relatives à l'infradensité, les retraits (retrait volumique, tangentiel, radial et axial...
Article
Full-text available
Ecological structure and fruit production of African fan palm stands in Benin were studied on the basis of surveys laid out in ten (10) populations located in three ecological zones. Dendrometric and fruit production parameters such as: diameter at breast height (dbh), total height (TH), number of fruit bunch per tree, number of fruits per tree, nu...
Article
Full-text available
Ecological structure and morphological variation of Ceiba pentandra populations were assessed in Benin using transect sampling method and principal component analysis as well as cluster analysis on the basis of morphometric parameters related to trees growth and seeds production. Cluster analysis of C. pentandra individuals based on these variables...
Article
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Les caractéristiques structurales des populations rémanentes de samba (Triplochiton scleroxylon) ont été étudiées à travers l’inventaire des individus de l’espèce dans trois zones agroécologiques de son aire de répartition au Bénin. La densité des populations varie d’une zone à l’autre : (1 au centre du pays, 8 au sud-ouest, et 50 au sud-est). La s...
Article
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Iroko ( Milicia excelsa ) is a commercially important timber tree species formerly known by local people in Benin. Because of the highly attractive technological properties of its wood and its multipurpose uses, the species was subjected to intensive human pressure. Apart from strong climate oscillation during the Pleistocene, human caused habitat...
Article
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The study surveyed three hundred (300) women who process sheanuts in Northern Benin in order to estimate the technical, allocative and economic efficiencies of their processing units. The analysis was mainly based on the stochastic production and cost frontiers. The results revealed that indexes of technical, allocative and economic efficiencies we...
Article
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To accurately estimate the genetic diversity and population structure for improved conservation planning of Milicia excelsa tree, 212 individuals from twelve population samples covering the species' range in Benin were surveyed at seven specific microsatellite DNA loci. All loci were variable, with the mean number of alleles per locus ranging from...