Brice Augustin Sinsin's research while affiliated with Ecole Polytechnique d’Abomey-Calavi and other places

Publications (43)

Poster
Full-text available
A previous study performed in Indonesia pointed out that K and Mg leaf contents greatly vary from one oil palm progeny to another for the same production level. Such differences in nutrient contents may lead to an incorrect assessment of the nutrient requirements, questioning the validity of leaf analysis as a diagnostic tool. The principal aim of...
Article
Full-text available
Oil palm fertilizer requirements are based on leaflet mineral concentrations. Four oil palm progenies representing a wide genetic diversity of Elaeis guineensis species and with contrasting K and Mg leaflet concentrations were tested in Indonesia and Nigeria, environments which differ predominantly in climate. During 5 years, we compared oil palm p...
Article
Full-text available
Background and aims In oil palm, similar fertilization treatments can result in leaflet potassium and magnesium concentrations that vary significantly from one progeny to another. This hinders the development of standardized fertilizer recommendations for this crop, as they are usually calculated based on optimum leaflet nutrient concentrations. M...
Article
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We compared four oil palm ( Elaeis guineensis Jacq.) progenies’ morphological growth characteristics to reveal genotypic differences in plant growth and assess their adaptability in Nigeria’s environment in response to different levels of potassium chloride (KCl) and kieserite fertilizer applications. The studied progenies (C1, C2 and C3 of Deli ×...
Preprint
Full-text available
Background and aims: In oil palm, similar fertilization treatments can result in leaflet potassium and magnesium concentrations that vary significantly from one progeny to another. This hinders the development of standardized fertilizer recommendations for this crop, as they are usually calculated based on optimum leaflet nutrient concentrations. M...
Article
Aromatic and medicinal plants (AMP) are flora with a fragrant essence. The aim of this study is to identify the aromatic plants used by herbalists in three districts of the Departement des Collines. The method of data collection is based on ethnobotanical surveys of herbalists using the Dagnelli formula and pre-established survey questionnaires. Th...
Article
Description of the subject. Poor germination associated with physical dormancy was experienced in the legume Aeschynomene histrix Poir. seeds and can reduce the establishment and growth of this species. Objectives. To evaluate the effects of different pre-planting treatments, including digestion by Lagune cattle or other preplanting treatments on...
Article
The child is the foundation for the consolidation of a couple's home in the world. Thus, the absence of the fruit of the union (child) in the couple is subject to criticism and is a source of problems between the spouses. The first cause cited is female infertility. This study aims at solving the problems of female infertility through the knowledge...
Article
Full-text available
Understanding the interactions between local people and chimpanzees is crucial to develop sustainable wildlife conservation strategies and management policy in the Mbam-Djerem National Park (MDNP). The MDNP covers about 416,512 ha and shelters the Nigeria-Cameroon chimpanzee ( Pan troglodytes ellioti) being the most endangered of all currently reco...
Article
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This research was conducted in the framework of the feasibility study related to FOCUSED-Benin project, the 5 th work package of the YES-PV NIG BEN project financed by the German Government through its Ministry of Research and High Education (BMBF). The FOCUSED Benin project's major objective is to protect the environment through the utilization of...
Article
Full-text available
The runoff and soil loss were assessed in situ at the scale of 2.12 m 2 plots during the rainy season of 2010 to better understand the determinants and magnitude of the massive soil loss and land subsidence (donga) in the sub-humid zone of Africa in Karimama, North Benin. The experimental design was a split plot with two factors: the topography in...
Chapter
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Atacora mountain is a particular ecosystem of West Africa where soil degradation occurs. The present study assessed the impacts of physical soil degradation on vegetation in the Beninese portion of this mountain chain. Phytosociological surveys were carried out along line transects from plain to summit within 22 plots of 30 m x 30 m. Based on indic...
Article
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In African wildlife conservation literature, southern and southeastern African voices dominate, giving a false impression of pan-Africanism. We present divergent perspectives from West, Central and the Horn of Africa and argue that empathy towards multiple perspectives offers increased resilience to COVID-19 and other crises.
Article
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L’étude aborde la dynamique de l’utilisation des terres à travers l’évolution des emblavures et de la production des principales cultures, puis l’impact des activités agricoles sur l’environnement et les conditions de vie des populations. Objectif : L’objectif global de l’étude était d’évaluer les impacts socio-environnementaux des activités agrico...
Article
Full-text available
Accurate assessment of great ape populations is a prerequisite for conservation planning. Indirect survey methods using nest and dung, and a set of conversion parameters related to nest decay rates, are increasingly used. Most surveys use the standing crop nest count (SCNC) method, whereby nests are counted along transects and the estimated nest de...
Article
Full-text available
Background: Understanding the relationship between great apes and their habitat is essential for the development of successful conservation strategies. The chimpanzee Pan troglodytes ellioti is endemic to Nigeria and Cameroon, and occupies an ecologically diverse range of habitats from forests to forest-savannah mosaic in Mbam-Djerem National Park...
Article
Full-text available
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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Palm oil mill wastes (POMW) are well known to be rich in phosphorus, nitrogen, calcium, magnesium, sodium and potassium. This study was carried out in 2012 to assess farmers' practices on utilization of POMW in agriculture in the south of Benin. A total of 335 palm oil mills from the Communal Union of Palm Oil Producers were randomly selected and s...
Article
Full-text available
Response to nitrogen fertilizer of 2 grass species, Pennisetum polystachion and Setaria sphacelata, and one legume Tephrosia pedicellata was studied in northern Benin. The 3 species are native in Sudanian grasslands and occur on tropical ferruginous soils. The experimental plots were fertilized with a basal dressing of potassium chloride and triple...
Article
Full-text available
Niche theory suggests differential use of shared resources facilitates coexistence of species in a community. In this study we used the faecal stable isotope analysis with observations along transect lines perpendicular to the Pendjari River. This was to examine seasonal habitat features and diet partitioning between two sympatric bovid species wat...
Article
Niche theory suggests differential use of shared resources facilitates coexistence of species in a community. In this study we used the faecal stable isotope analysis with observations along transect lines perpendicular to the Pendjari River. This was to examine seasonal habitat features and diet partitioning between two sympatric bovid species wat...
Data
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Résumé : La nécessité d’appréhender le complexe élevage-environnement à l’image des éleveurs qui recherchaient l’harmonie avec leur milieu devrait constituer un objectif fondamental des intervenants dans ce secteur. La nécessité d’une exploitation adéquate de l’environnement amène les éleveurs à étendre l’espace d’élevage par la mobilité du cheptel...
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...
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...

Citations

... The significant differences in growth variables observed among the progenies tested in our study are probably determined genetically (Nouy et al., 1999;Konan et al., 2014;Corley and Tinker, 2016), i.e. linked with the specific physiological traits of the different genetic origins of the oil palms (Jacquemard et al., 2002). This difference in growth morphology between progenies may also be related to differences in leaflet mineral concentrations which were found to be specific to each progeny (Dassou et al., 2022b). ...
... The negative effect of KCl on rank 17 frond length for progenies C2 and C3 might possibly be explained by the high yield (with increasing KCl levels) recorded between 5 to 8 YAP (Dassou et al., 2022a). Fruit bunches are mineral sinks that store K, to the detriment of K potentially accumulating in fronds (Dubos et al., 2010;Legros et al., 2006). ...
... The Mbam and Djerem National Park (MDNP) is still home to a residual relict population of Nigeria-Cameroon chimpanzees (Pan troglodytes ellioti), which find an ideal refuge in this environment. Indeed, the expansion of industrial oil palm and rubber plantations has led to the degradation and progressive reduction of the primate habitats (Kamgang et al., 2021). Alexis (2016) estimates the population of the remaining chimpanzee to be between 3,500 and 9,000 individuals residing in a forested habitat north of the Sanaga River in Cameroon and at the eastern edge of Nigeria. ...
... Our results on the relations between conservationists' geographies and their values suggest that place-and community-based conservation projects are more likely to embody local people's values than top-down, transnational interventions. However, it is crucial to note that, by focusing on respondents' country of origin, and aggregating these into continents, our results will have missed any variation in values between and within the countries of each continent (Bauer et al., 2021). The findings presented here should contribute to debates about diversity of people and of values in conservation at a global level (Chaudhury & Colla, 2021;Haelewaters et al., 2021). ...
... Toutefois, la baisse de la fertilité des sols entraîne la chute des rendements et par conséquent celle des revenus des producteurs (Fangnon, 2012). Alors que le taux de croissance démographique s'accélère dans la région, l'agriculture qui doit nourrir les populations et assurer leur mieux être connaît une crise caractérisée par une baisse relative de sa production, une dégradation des ressources naturelles et l'environnement (Kombienou et al., 2020). En outre, le développement rural mal maîtrisé, les pollutions diverses liées à l'usage incontrôlé des différents intrants agricoles, la baisse de la qualité des eaux, l'extension de l'érosion, l'appauvrissement des sols et le recul sans cesse du couvert forestier sont les manifestations les plus visibles de cette dégradation (Roufaï, 2005). ...
... The results of the soil analysis revealed a relative poverty of the watersheds of the commune of Boukombe in organic matter. This is partly justified by the fact that the majority of producers (80%) do not spread organic manure in their fields and do not bury crop residues during the plowing of the soil either [42]. These cultural practices have a double objective. ...
... This suggests that while food-providing trees are good indicators of tool-site selection, they may not be good predictors of site use, because the data collected did not capture temporal changes in food availability or frequency of foraging activity. On the other hand, nests are temporary features that, on average, rarely preserve for longer than 6 months in non-savannah environments (Ihobe, 2005;Kamgang et al., 2020;Zamma & Makelele, 2012). Therefore, they are a better spatial proxy for recent ranging patterns and possibly explain why differences were found for nests, but not for vegetation. ...
... The selection of individual nesting trees by chimpanzees has been attributed to the morphological characteristics of trees, including the tree diameter, tree height, and lowest branch height (Hakizimana et al., 2015;Hernandez-Aguilar et al., 2013) as well as the species type (Brownlow et al., 2001;Sanz et al., 2007;Stanford & O'Malley, 2008). In addition to the selection of individual trees, chimpanzees also select nesting areas within forests, including a preference for primary forest cover (Bryson-Morrison et al., 2017;Koops et al., 2012), high elevation (Barca et al., 2018;Koops et al., 2012), steep slopes (Abwe, 2018;Dutton et al., 2016;Kamgang et al., 2018), and closed canopy (Abwe, 2018). Besides habitat and topographic factors, seasonality may affect nest construction in great apes. ...
... N could be applied to seedlings during the vegetative to spikelet initiation period. Adequate N from floral initiation to seedhead emergence can boost seed yield by improving tiller survival, increasing seedhead density, seedhead branching, floret differentiation, and seed size [37,38]. However, in our study, the N fertilizer was applied once in one dose after the closing cut immediately. ...
... Parmi ces difficultés, figurent les contraintes alimentaires notamment la non disponibilité du fourrage en toutes saisons. La pression démographique, l'amélioration des systèmes de production et l'introduction des cultures de rente ont favorisé l'extension des champs de cultures au détriment des aires de pâture constituées par les jachères et les formations naturelles (Houndjo et al., 2018). Les conséquences en sont le surpâturage, l'extension des zones dénudées et la diminution des espèces fourragères les plus appétées. ...