Etat des connaissances sur la flore et la phytosociologie de deux aires protégées de la chaîne de l’Atakora au Togo : Parc National Fazao-Malfakassa et Réserve de Faune d’Alédjo

Woegan, YA; Akpavi, Sêmihinva; Dourma, Marra; Atato, Abalo; Wala, Kpérkouma; Akpagana, Koffi

doi:10.4314/ijbcs.v7i5.14

Cited by 5 publications

(4 citation statements)

References 6 publications

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“…Yet, this information would help assess vegetation changes over time [ 21 – 23 ] and its impacts on the distribution of wildlife [ 24 ]. Although a number of studies have been carried out [ 25 – 27 ], they do not provide enough information to specifically make suggestions for improved management strategies. In order to fill in this gap, it is important to have accurate data on the types of habitats present in the park and their areas, as well as on changes on their fragmentation and degradation over time [ 28 , 29 ]; information which could be used to help preserve the complexity, integrity and representativeness of each habitat type.…”

Section: Introductionmentioning

confidence: 99%

Changes in the West African forest-savanna mosaic, insights from central Togo

et al. 2018

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The West African forest-savanna mosaic, an important habitat for biodiversity and humans, is severely degraded, fragmented and modified by human activities. However, few studies have quantified the land cover changes observed over time and/or analysed the drivers of change. This study focused on Fazao-Malfakassa National Park, the largest in Togo, uses a combination of remote sensing, ground surveys and questionnaires to: (i) quantify vegetation changes, (ii) determine the drivers of change, (iii) compare results with findings elsewhere in the region and (iv) suggest management interventions. The images used were Landsat 5 TM, Landsat 7 ETM and Sentinel-2. Different vegetation indices were computed including: number of fragments, index of dominance, mean area of a vegetation type and mean annual expansion rate. In total, 300 people (including park staff and local populations) were interviewed using a semi-structured questionnaire. Results indicate that between 1987 and 2015 closed-canopy forest and tree-savanna became severely degraded and fragmented, following trends in other parts of the West African forest-savanna mosaic. The main drivers of change were agricultural expansion, bush fires and timber extraction. Observed changes and drivers altered with time: e.g. agricultural expansion was greatest during 1987–2001 (linked with political instability) while illegal timber extraction augmented during 2001–2015 (following increased timber value). Park staff and local populations’ perceptions on drivers of change did not differ. Our study highlights that action is urgently needed if we are to preserve this important habitat, the biodiversity it hosts and the services it provides to humans. We suggest several management interventions, learning from successful interventions elsewhere in the region.

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Section: Introductionmentioning

confidence: 99%

Changes in the West African forest-savanna mosaic, insights from central Togo

et al. 2018

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“…Three plants were collected from Annaba area (garlic cloves, oleander leaves and eucalyptus leaves); they selected to examine the effect of their aqueous extracts on mycelial growth of the three dermatophytic species: Trichophyton rubrum, Trichophyton verrucosum and Microsporum ferrugeneum. Aqueous extracts is carried out by simple methods according to Sqalli et al (2007) and Eyana (2007), with some modifications. The plant parts of oleander and eucalyptus were thoroughly washed with 2% aqueous sodium hypochlorite and sterile distilled water (Abdel-Raouf, 2001).…”

Section: Plant Extractsmentioning

confidence: 99%

Effect of Aqueous Extract of Eucalyptus Sp., Nerium Oleander and Allium Sativum on the Growth of Dermatophytes

Ennaghra¹,

Bourzama

2019

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The surface mycosis of skin, hair and nails are common infections in the world. They are due to the several molds and yeasts. The main agent responsible for these affections is the dermatophytes: filamentous fungi which live in depending on the keratin of the cornea layer, the skin and the superficial growths of human and animal. Their distributions vary from one country to another and area to another in the same country, according to the climate of each area and favors factors development of these fungi. The dermatophytes pose serious problems of health. The thhhThe aim of the present study is to evaluate the inhibitory effect of aqueous extracts of three plants against three dermatophytic species induce dermatophytosis in the area of Annaba "East of Algeria", isolated from patients reached of the dermatophytosis. We have isolated three species (Trichophyton rubrum, Trichophyton verrucosum and Microsporum ferrugeneum) using Sabouraud Dextrose Agar medium (SDA), that were tested with crude extracts of three plants; Allium sativum (garlic), Nerium oleander (oleander), and Eucalyptus sp. (eucalyptus). The method applied was the solid state dilutions. The obtained results showed that all extracts examined reduced growth of mycelium compared to the controls. It was found that garlic crude extracts proved the highest growth inhibition against the three species (38, 59% to 100%), followed by eucalyptus with 60% to 80%, whereas, oleander reduces the growth with 50% to 60%.

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“…Originaire de l'Afrique de l'Ouest (Russell, 1955), C. millenii est une espèce de forêt dense humide semi-décidue (Akoègninou et al, 2006 ;Aoudji et Ganglo, 2006 ;Adjakpa et Akpo, 2008 ;Adjakpa et al, 2011;Alohou et al, 2017) et forêt marécageuse (Akoègninou et al, 2006 ;Dan, 2009 ; Adjakpa et al, 2011) rencontrée de la Côte d'Ivoire au Nigéria (Akoègninou et al, 2006;Adekunle et Olagoke, 2008). Elle se trouve aussi en forêt galerie (Houenon, 1980 ;Natta, 2003 ;Ganglo et de Foucault, 2006 ;Ceperley et al, 2010;Adjakpa et al, 2013;Kakpo, 2013), en forêt inondable (Adjakpa et al, 2011 ;Hèdégbètan, 2011), en forêt dense sèche (Biaou, 1999 ;Yedomonhan et al, 2008 ;Woegan et al, 2013) et en formations saxicoles (Oumorou, 2003 ;Yedomonhan et al, 2008). Les travaux effectués par Kakpo et al (2018) ont révélé que l'espèce a une structure spatiale agrégative dans un rayon de 10 m autour d'un pied repère avec une tendance à la dispersion entre 10 m et 30 m aussi bien en forêt dense humide semi-décidue qu'en forêt galerie.…”

Section: Origine éCologie Et Distribution Géographiqueunclassified

<i>Cola millenii</i> K. Schum : Etat des connaissances et perspectives de recherche

Lawin¹,

Fandohan²,

Gandji³

et al. 2018

Int. J. Bio. Chem. Sci

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Cola millenii est un fruitier sauvage comestible peu connu, négligé et sous utilisé en Afrique de l'Ouest. La présente synthèse littéraire a pour objectif de faire le point des connaissances sur l'espèce et de relever les axes de recherche-développement. Les moteurs de recherche Google Scholar et Science Direct ont été utilisés pour la recherche de littérature sur l'espèce avec des mots-clés pertinents. Des publications évaluées par les pairs, livres, thèses et mémoires obtenus dans diverses bibliothèques ont été également consultés. Il ressort de l'analyse de la littérature que C. millenii est une plante à usages multiples qui est retrouvée dans plusieurs pays. Elle renferme beaucoup d'éléments minéraux et de la vitamine C nécessaires aux besoins nutritionnels de la population ainsi que des composés chimiques tels qu'alcaloïdes, tannins, saponines, glycosides cardiaques, glucides, stérols, résine et terpènes responsables de son action pharmacologique. En vue de sa conservation et domestication, des travaux complémentaires méritent d'être entrepris sur les variations des usages, l'écologie, la morphologie, la caractérisation biochimique et la phénologie de l'espèce.

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Etat des connaissances sur la flore et la phytosociologie de deux aires protégées de la chaîne de l’Atakora au Togo : Parc National Fazao-Malfakassa et Réserve de Faune d’Alédjo

Cited by 5 publications

References 6 publications

Changes in the West African forest-savanna mosaic, insights from central Togo

Changes in the West African forest-savanna mosaic, insights from central Togo

Effect of Aqueous Extract of Eucalyptus Sp., Nerium Oleander and Allium Sativum on the Growth of Dermatophytes

<i>Cola millenii</i> K. Schum : Etat des connaissances et perspectives de recherche

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