Armand Natta

Armand Natta
University of Parakou (Université de Parakou) · Département d'Aménagement et Gestion des Ressources Naturelles (D AGRN)

PhD

About

82
Publications
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Introduction
Additional affiliations
January 2006 - February 2017
University of Parakou (Université de Parakou)
Position
  • Managing Director

Publications

Publications (82)
Article
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Cattle feeding relies primarily on the use of natural pasture forage resources. Herbaceous plants are the main fodder resources for livestock during the rainy season, and woody fodder and crop residues are the sources of food for the survival of cattle herds during the lean season. The strong anthropic pressure on these forage resources associated...
Article
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La régénération par graines de Detarium microcarpum Guill. et Perr. est importante dans le contexte de sa conservation et sa domestication qui préserve son patrimoine génétique. La présente étude a pour objectif d’évaluer la germination des graines de quatre (04) provenances (Yeroumaro, Périmètre de reboisement de Parakou, Sinwan-Boumoussou et Tria...
Article
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The forest landscape of the Cool Highlands of Lubero (D.R. Congo) is currently in a very severe state of degradation, due to various forms of land occupation. This study analyzes the spatio-temporal dynamics of land use and forest cover in the Cool Highlands of Lubero between 1987 and 2019. It is based on remote sensing estimates of forest cover re...
Article
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Protected areas play an important role in the sustainable conservation of biodiversity. In southern Benin Republic, the Lama Forest Reserve is a refuge for wildlife. It also generates significant incomes for the local population. However, anthropogenic activities together with uncontrolled hunting are increasingly threatening the sustainability of...
Article
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The present study aims to assess diseases and vascular plants of the shea-butter tree (Vitellaria paradoxa C. F. Gaertn) in Sudan Savanna (SS) and Northern Guinea Savanna (NGS) of Benin. Thus, forty (40) sites in total were surveyed in July 2018. On each site, incidence and severity of the disease symptoms, and density and distribution of vascular...
Article
Most of multi-use species are declining in the wide habitat in spite of the variety of the conservation recommendations formulated by researchers. This may be due to the fact that a large part of researches focused on their socioeconomic importance than the conservation of those species. Pentadesma butyracea is a multi-uses tree species that occurs...
Preprint
Full-text available
Background: Forest management can be sustainable if it integrates social, cultural and economic values that local communities associate with forest resources in a given area. Detarium microcarpum Guill. & Perr. (Fabaceae), also known as small detar or sweet detar, is a common multiuse small tree of Sudanese and Sudano-Guinean savannahs with high po...
Article
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Work on fuelwood plantations has often focused on wood productivity as a result of the wood production objective and disruptions associated with development and harvesting activities. However, in fuelwood plantations, wildlife contributes to overall diversity and plays a key role in the biodiversity conservation and assessment process. The study ai...
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Introduction : A la différence des grandes cultures, le fonio, une céréale négligée, n’a pu bénéficier d’un grand nombre de recherches formalisées sur les techniques culturales. Sur la base d’une recherche documentaire systématisée, cet article présente une analyse critique des techniques pratiquées en culture du fonio en Afrique subsaharienne. Li...
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In a context of fragmentation of forest landscape and sustainable use of orchid species, an analysis of the local knowledge base is necessary for developing conservation strategies of orchid habitat. This study aims at i) assessing factors affecting local perception on conservation status of orchids, and ii) determining degradation factors of their...
Article
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Cette analyse bibliographique visait à améliorer les connaissances sur Afzelia africana Sm et Pers (Fabaceae), une espèce menacée. L’espèce est distribuée à travers plusieurs régions en Afrique, démontrant sa plasticité écologique. À ce jour, plusieurs études sur Afzelia africana ont été conduites principalement pour décrire la végétation et la com...
Article
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Le fonio, ancienne céréale africaine, est négligée malgré son rôle crucial dans la sécurité alimentaire. Cette étude vise à comparer les types de semis pour l’amélioration des techniques culturales de cette espèce au Bénin. Les semis en lignes continues à 25cm et 30cm entre lignes, et à la volée ont été comparés dans un dispositif de bloc aléatoire...
Article
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Introduction. À la différence des grandes cultures, le fonio, une céréale négligée, n’a pu bénéficier d’un grand nombre de recherches formalisées sur les techniques culturales. Sur la base d’une recherche documentaire systématisée, cet article présente une analyse critique des techniques pratiquées en culture du fonio en Afrique subsaharienne. Litt...
Article
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Acacia auriculiformis est la troisième essence à croissance rapide la plus plantée au Bénin. Son bois, initialement destiné à l’énergie domestique, est de plus en plus utilisé comme bois d’œuvre. Ceci pourrait représenter une alternative durable à l’exploitation forestière des aires de conservation et contribuer à la séquestration de carbone. Cette...
Article
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Understanding the role of protected areas in conserving biodiversity is a central goal in conservation biology. Anthropogenic activities around and inside these protected areas and, in particular, roads can alter the spatiotemporal dynamics of biological diversity in protected areas. However, our understanding of how the presence and position of ro...
Article
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Background: Atacora Chain of Mountains (ACM) is the Benin part of a range of mountains lying from Benin to Ghana through Togo. It provides goods and services to people and is dominated by rural communities with heavy reliance on natural resources. The ACM may be threatened by the increasing resource needs and the possible shift in people's livelih...
Article
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La chasse est une activité importante pour les communautés proches des réserves de faunes malgré ses impacts négatifs sur les espèces sauvages. Durant un an et demi, un suivi quotidien a été mené aux côtés des chasseurs pendant 203 parties de chasse dans la zone d'étude. L'objectif de cette étude était de recenser les espèces chassées, d'analyser l...
Article
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Fragmentation affects population structure and tree diversity. However, the main causes of fragmentation and their consequences on population structure are still unclear. This study evaluated some causes of gallery forest (GFs) fragmentation and their effect on Pentadesma butyracea population structures in Benin. Twelve P. butyracea GFs were select...
Article
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Poaching and commercialization of wildlife remain a general concern for the Pendjari Biosphere Reserve and its surrounding areas. Although conservationists and nature conservation NGOs continue to invest in wildlife conservation in this reserve, the distribution of poached meats and trophies continues in the surrounding towns and thus curbs wildlif...
Article
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Tél: (+243) 898566061 / (+229) 63957403 REMERCIEMENTS Nous remercions la Plateforme Afrique Centrale de l'Université de Liège et la Wallonie Bruxelles Internationale pour leur appui financier. RESUME Les zones périurbaines de Kinshasa présentent une luxuriante végétation principalement privée mais menacée par des coupes incontrôlées. Pour sa meille...
Article
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Understanding how trees mediate the effects of chronic anthropogenic disturbance is fundamental to developing forest sustainable management strategies. The role that intraspecific functional diversity plays in such process is poorly understood. Several tree species are repeatedly defoliated at large scale by cattle breeders in Africa to feed livest...
Article
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Afzelia africana is a tropical multi-use tree species distributed in West, East, and Central Africa. Understanding factors affecting seedlings is crucial to design an effective conservation and restoration plan for the species. Here, we examined the factors constraining seedling density and survival. We randomly established 203 circular plots of 5-...
Article
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This literature review aimed to improve knowledge on a threatened species Afzelia africana Sm and Pers (Fabaceae). The species thrives across several regions in Africa, demonstrating it ecological plasticity. To date, many studies on the species, have been conducted mainly to describe the vegetation and species communities or to measure its structu...
Article
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Ecosystem services provided by shea parklands and their contribution to the well-being of rural populations in the commune of Savè Central Benin Abstract: Ecosystems provide a range of services and benefits to many people across the world. Agroforestry systems are a type of ecosystems that pairs with sustainable agriculture, with negligible impacts...
Article
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The socioeconomic importance of the rônier (Borassus aethiopum Mart.) Induces a strong pressure on its populations in Savè. The purpose of this study is to evaluate the influence of anthropogenic activities on the dendrometric characteristics of Borassus aethiopum populations in the commune of Savè. The methodology followed was based on the forest...
Article
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Seed potential and constraints to seed regeneration of Haematostaphis barteri, an indigenous fruit species in NorthWest Benin Abstract: Haematostaphis barteri is a fruit species that contributes to the food and medicinal needs of local populations along the Atacora chain in northwestern Benin. It is one of the woody species facing natural regenerat...
Article
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Understanding the diversity of melliferous flora across environmental gradients is important in identifying suitable environments for beekeeping. This study evaluated countrywide melliferous flora diversity in Benin across the rainfall gradient so as to identify the most appropriate zone for beekeeping. A floristic inventory of bee flora was conduc...
Article
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This research investigated the role of periodic markets in the food supply of the Atacora's foothill risk areas in northwestern Benin. The respondents were randomly selected. A total of 330 respondents were surveyed (including 150 traders, 150 consumers and 30 resource persons). Socioeconomic surveys based on quantitative and qualitative data allow...
Article
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Understanding the utilization of plant is fundamental for efficient conservation of species. The present study aimed at assessing the quatitative ethnobotany of Lophira lanceolata Tiegh. ex Keay (Ochnaceae) utilization in Benin. A number of 1261 persons were randomly selected and interviewed using semi-structured questionnaires. Principal Componen...
Article
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Understanding population structure is crucial for the efficiency of management programs. The present study aimed at assessing the typology and structure of the multipurpose tree Lophira lanceolata (Ochnaceae) in Benin. We established seventy squared plots of 50mx50m size and measured on each individual the diameter at breast height (DBH), total hei...
Article
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Non-timber forest products (NTFPs) are widely harvested by local people for their livelihood. Harvest often takes place in human disturbed ecosystems. However, our understanding of NTFPs harvesting impacts in fragmented habitats is limited. We assessed the impacts of fruit harvest, and reduction in habitat size on the population structures of Penta...
Article
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Studies on the ecological impacts of non-timber forest products (NTFP) harvest reveal that plants are often more resilient to fruit and seed harvest than to bark and root harvest. Several studies indicate that sustainable fruit harvesting limits can be set very high (>80% fruit harvesting intensity). For species with clonal and sexual reproduction,...
Article
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Understanding how multiple disturbances affect species population structure is crucial for designing a better conservation strategy of threatened species. In this paper, we assessed the disturbance patterns and evaluated their effects on the population structure of Afzelia africana, in two different bioclimatic zones of the Republic of Benin. The m...
Article
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La connaissance des rapports existants entre les êtres humains, leur milieu de vie et leur culture est très importante pour une gestion durable des ressources naturelles. L'objectif de l'étude était de capitaliser les connaissances endogènes sur les utilisations de Lophira lanceolata Tiegh. ex Keay au Bénin. Il a été effectué une enquête ethnobotan...
Article
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The present study examined the influence of human activities on the structural characteristics of the populations of P. butyracea, a vulnerable multipurpose woody species. A total of 116 plots of 500 m² were randomly installed, 68 in the sudanian region and 48 in the sudano-guinean region, for dendrometric and floristic inventories. The populations...
Article
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L'importance des systèmes agroforestiers dans le maintien des productions vivrières et animales et dans la fourniture des services écosystémiques a été investiguée au Bénin à travers des études de cas très localisée sur le plan géographique. Il ressort qu'épargner les arbres dans les champs, les pâturages et les paysages est indispensable à la prom...
Article
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Understanding impact of climate change on range breadth of rare species can improve the ability to anticipate their decline or expansion and take appropriate conservation measures. Haematostaphis barteri is an agroforestry species of the Sudanian centre of endemism in Africa. We investigated impact of climate change on range of suitable habitats fo...
Article
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The importance of functional traits in understanding plant response to environmental change was widely discussed. However, our understanding of how plant traits vary across ontogenetic and canopy gradients is still limited. In this study, we assessed how functional traits of the tropical tree species Afzelia Africana Sm & Pers vary among ontogeneti...
Article
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Hippopotamus is the second biggest mammal after elephant in the protected areas of Benin. Its populations in these special areas dedicated to biodiversity conservation are seldom known and promoted. In order to fill the gap of knowledge on the importance of Hippopotamus and its organs and produits, we undetook an ethnozoological survey among 81 peo...
Article
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We studied the structure and ethnozoological traits of forest buffalo (Syncerus caffer nanus Sparrman, 1779) from april to may 2013 in the Protected Forest of Agoua (Centre Benin). A total of 72 persons were interviewed (40 hunters and 32 Fulani herders) and fauna was monitored along 6 track through Kilometric Abundance Index (IKA) method. Eleven (...
Article
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The flora and plant communities of gallery forests were studied of the Biosphere Reserve of Pendjari using the phytosociological approach. A total of 350 plant species were identified, of which 98 are typically gallery forest species of the Sudanian region of northern Benin. We define five plant communities: (1) the Broenadia salicina—Garcinia oval...
Article
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The results brought back at the end of this work concerned various chemical constituents of P. butyracea materials collected in seven forest galleries in northern of Benin. The phytochemical analysis showed mucilage, coumarins, gallic tannins, flavones, sterols, and saponins, in its leaves. The cyclohexanic fractions realized from petroleum ether e...
Article
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Studies were carried out on P. butyracea kernels to determine their nutritional and antinutritional composition. The kernels contained 41.9% of butter. The physicochemical properties of the butter are as follows: saponification value, 192.5 mg KOH/g of oil; refractive index (20°C), 1.462; unsaponifiable matter, 1.8%; acidity, 0.41%; peroxide value,...
Article
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This study aimed to evaluate Pentadesma butyracea seeds germination, species vulnerable in Benin and having recalcitrant seeds, Under the influence of water and light, two key factors characteristic of the natural environment of this specie (forest gallery). The device set up for the study is a Complete Random Block where each level of light is ass...
Article
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The seeds of Pentadesma butyracea (butter tree) are exploited by rural populations in West Africa to produce butter used for consumption and as an ingredient in cosmetics and medicinal preparations. To improve our knowledge of this under-studied species, the morphological variation of the trees, fruits and seeds in 12 natural populations of Benin d...
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This paper investigates the structure of the Benin Riparian Forests (RFs) through different methods: life forms, phytogeographic types, diameter class distribution, basal area, and stem density. Field data was collected in 373 phytosociological relevés using the Braun-Blanquet approach. RFs displayed a physiognomy that is highly variable in terms o...