B. A. Djossa

B. A. Djossa
Université Nationale d'Agriculture de Porto-Novo (Bénin) · Ecole de Foresterie et Ingénierie du Bois

PhD

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40
Publications
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424
Citations

Publications

Publications (40)
Article
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Background: African pangolins are currently experiencing unprecedented levels of harvesting, feeding both local demands and the illegal international trade. So far, the lack of knowledge on the population genetics of African pangolins has hampered any attempts at assessing their demographic status and tracing their trade at the local scale. We con...
Article
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Illegal hunting of wildlife is one of the major issues in tropical ecosystems, especially when it occurs in highly degraded habitats with forest cover fragmentation. In this study, we assessed the impact of bushmeat hunting in a large forest patch (the Lama Natural Forest; LNF) and 11 nearby forest islands, using Traditional Ecological Knowledge fr...
Preprint
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We conducted in the Dahomey Gap (DG) a pioneer study on the genetic tracing of the African pangolin trade. We sequenced and genotyped 189 white-bellied pangolins from 18 forests and 12 wildlife markets using one mitochondrial fragment and 20 microsatellites loci. Tree-based assignment procedure showed the ‘endemicity’ of the pangolin trade, as stri...
Article
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Background Pangolins are trafficked in unsustainable volumes to feed both local and global trade networks for their meat and the medicinal properties of their derivatives, including scales. We focus on a West African country (Benin) to assess the medicinal and spiritual values of pangolins among different ethnic groups and identify the cohort of bu...
Article
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Although pangolins are considered to be one of the most trafficked wild mammals in the world, their conservation status remains uncertain through most of their ranges, and notably in western Africa. Using local ecological knowledge in combination with direct occurrence evidence, we assessed the distribution and abundance of the white-bellied pangol...
Article
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Mangrove ecosystems constitute valuable resource all over the world. They provide habitats for flora and fauna species, protect the coast against erosion and supply various products for local communities. Currently, mangroves are overused and degraded. Up to now, perceptions of local communities on the dynamic of mangrove forest and their acceptabl...
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Information on how abiotic and biotic factors affect species population structures and regeneration are critical for understanding plant growth in natural habitats. Here, we used data from three spatially distinct populations of Afzelia africana Sm. in the Pendjari Biosphere Reserve in Benin, to determine how the species population structures respo...
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La tomate (Lycopersicon esculentum) est un légume très largement utilisé dans l'alimentation des ménages dans le monde en général et au Bénin en particulier. La production des fruits de tomate dépend essentiellement des abeilles qui pollinisent ses fleurs. Les abeilles impliquées dans la pollinisation de cette culture au Bénin restent encore peu co...
Article
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Zanthoxylum zanthoxyloides (Rutaceae) is a plant commonly used in the treatment of many diseases in tropical areas including digestive disorders, toothache, abdominal pain, sickle cell disease, snake bites, etc. This article reviews phytochemical, pharmacological and toxicological studies of this plant. Many traditional uses of this plant have been...
Article
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Pollination is an important ecosystem service provided by a large array of biotic agents. This service improves the nutritional and physical characteristics of fruits. Both farmers and consumers search some characteristics on crops they grow or select for food. This study aims at identifying fruit characteristics improved through pollination that m...
Article
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Dendrometric parameters such as tree DBH, height, crown diameter and size characteristics of leaves and fruit production collected from Vitellaria paradoxa subsp. growing in three land use types in Pendjari Biosphere Reserve (PBR) were analyzed. A total of 36 circular plots of 15 m diameter were randomly set in the three main land use sites of the...
Article
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A captivity rearing trial has been conducted at Kétou, district of Plateau, in the aim to collect key data for the domestication of the African grass rat (Arvicanthis niloticus) that is already widely consumed in many different localities of Benin. A group of 7 individuals comprising 5 females and 2 males have been reared in captivity at Kétou, fro...
Article
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Parkia biglobosa (the locust bean tree) is one of agroforestry species of major socio-economic importance not only in Benin but in the whole West African region. However, its conservation and domestication for the diversification of agricultural production depends on its ability to adapt to climate change. Thus 492 points of occurrence combined wit...
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Introduction. The plant baobab (Adansonia digitata L.) is a multipurpose tree in Sub-Saharan Africa. This study investigates the role of bat-induced pollination in baobab fruiting. Materials and methods. The tree was studied in three different climatic regions in Benin Republic: Matéri, Dassa-Zoume and Come-Houéyogbé, representing the Northern, Cen...
Article
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Pollinators provide pollination services that are crucial for sexual reproduction of many flowering plants. Beside wind and water, pollination services are provided by animals but mainly by insects. They improve the quality and the quantity of many crops. This study aimed at accessing the economic value of pollination services on selected crops in...
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Many regions in Africa are currently being converted from subsistence to cash crop farming such as cotton. Agricultural intensification is usually accompanied by increased use of pesticides, which can have an impact on non-target organisms. Bats are particularly sensitive to insecticide loads while providing substantial ecosystem services as predat...
Article
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Multiple land uses including tourism, hunting, and agriculture around protected areas can be a serious complication for wildlife management. We calculated habitat selection indices (Manly's alpha) for 10 bovid species in the Pendjari Biosphere Reserve in Benin, west Africa, to assess if habitat use differed in each bovid species between hunting and...
Article
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This study was performed to gain more knowledge about the Bohor reedbuck time budget and vigilance in a savanna habitat. Detailed data on the time-budget were collected through focal animal observation technique to determine whether the time budget activities of Bohor reedbuck was affected by vegetation cover and to test if herd size, position in h...
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Indigenous perception on ecosystem services provided by honey bees and fruit bats were assessed in Bénin to find out whether the communities value these services and to appreciate if there is any chance to conserve them locally. Farmers were interviewed with questionnaire in three regions of Bénin to report their perception on bats and bees’ value...
Article
La commercialisation et l’utilisation des essences médicinales constituent des pratiques très courantes en Afrique et en particulier au Bénin. Une enquête a été effectuée chez une seule vendeuse disposant de trois différents étalages. L’inventaire minutieux et détaillé des trois étals a duré 30 jours. Un total de 205 espèces végétales groupées en 1...
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Résumé Les enquêtes de terrain ont permis d’aborder la problématique de création de réserves de faune dans la partie méridionale du Bénin. Des investigations ont été faites sur les populations qui entourent les marécages de Sèmè-Kpodji, de Yovocodji à Kpomassè, la forêt marécageuse de Démè-Lokoli-Koussoukpa, celle de Gnanhouizounmè et l’estuaire de...
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Le Tragelaphus spekei ou sitatunga est une espèce menacée (Liste rouge UICN). La caractérisation de son habitat dans les zones humides du sud du Bénin est faite afin de mieux connaître son écologie. L’étude est basée sur 31 relevés phytosociologiques effectués suivant la méthode sigmatiste de Braun Blanquet (1932). Les différents relevés ont été ré...
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The distribution area of the red-bellied guenon (Cercopithecus erythrogaster erythrogaster) in the Dahomey Gap has not been fully documented. This study contributed to filling this information gap. Surveys were conducted in 21 villages located in the wetlands of southwestern Benin and southern Togo. We found that only a few small areas of forest al...
Article
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Résumé Les analyses des données démographiques de l’INSAE, complétées par les prospections et les enquêtes de terrain ont permis d’analyser la pression anthropique qui pèse sur les sites à ériger en réserves de faune dans la partie méridionale du Bénin. Des investigations ont été faites sur des sites échantillons comme les marécages de Sèmè-Djèrègb...
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The Western Tree Hyrax (Dendrohyrax dorsalis sylvestris) is one of the least studied small mammals of West Africa. In Benin, it is reported from few remnant forest patches including the Lama Forest Reserve, one of the last undisturbed dense forest patches in the Dahomey Gap. We used station counts based on vocalization to study activity pattern and...
Article
The development of intensive rearing guinea fowl is very little used; however, it is a good chance of recovery of the animal due to nutritional and dietary outstanding of its meat and eggs. The aim of this study conducted in Porto-Novo (Benin),is to evaluate the sex reversing in guinea fowl and the parameters of production and reproduction of the b...
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Résumé L'étude est conduite pour apprécier le statut éco-démographique des populations de Cobe defassa, Kobus ellipsyprimnus defassa (Ruppell), dans la plaine d’inondation du Parc National de la Pendjari au Nord-Bénin. Sur la base que le Cobe defassa figure désormais au nombre des espèces les plus menacées du Parc. Une évaluation des mesures restri...
Article
La conservation de la diversite biologique dans les zones humides, erigees en sites Ramsar, necessite une connaissance approfondie de l’ecologie de leurs composants majeurs. Pour ce faire, une meilleure connaissance du regime alimentaire des especes animales menacees de ces sites Ramsar est d’une imperieuse necessite. Le Sitatunga apparait actuelle...
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In Sub-Saharan Africa, indigenous fruit trees play vital roles in nutrition and food security particularly, in food shortage times. Sclerocarya birrea subsp. birrea, an indigenous dioecious fruit tree is such a resource with strong multipurpose use characteristics in semi-arid zones of West Africa. We assessed sex ratio, spatial distribution among...
Article
La presente etude a evalue l’influence du type d’habitats sur la diversite et la structure des communautes des chiropteres dans les forets de Niaouli et de Lokoli situees au Sud du Benin. L’inventaire floristique est realise avec la methode de Braun-Blanquet et celui des chiropteres est fait au filet japonais. Ces deux formations forestieres ont mo...
Article
Sacred groves and community forests are common ways for local rural African people to conserve natural resources. The importance of traditional approach in wildlife conservation was evaluated with line transect method utilized to assess five community forests. Comparable species richness with similar size protected forests of the same regions were...
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Many tropical plants depend on seed dispersal by animals for their natural regeneration. Our results reveal that in the Pendjari Region, Benin (West Africa), fruits of shea trees (Vitellaria paradoxa) constitute a key resource for flying foxes (Chiroptera: Pteropodidae). Furthermore, handling of Vitellaria seeds by flying foxes can lead to an incre...
Article
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The shea tree, Vitellaria paradoxa, is a socio-economically important tree for the rural population in parts of West Africa. Our study assessed the current status of this native tree species with regard to increasing human pressure in northern Benin. We compared distribution of adult shea trees, seedlings and saplings in farmed lands with protected...

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