Diversité floristique spontanée des plantations de café et de cacao dans la forêt classée de Monogaga, Côte d'Ivoire | Spontaneous floristic diversity of cocoa and coffee plantations in the classified forest of Monogaga, Côte d'Ivoire (reviewed paper)

2006 ◽  
Vol 157 (2) ◽  
pp. 31-36 ◽  
Author(s):  
Constant Yves Adou Yao ◽  
Edouard Kouakou N'Guessan
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Diversity Index ◽  
Agricultural Practices ◽  
Woody Species ◽  
Secondary Forests ◽  
Cote D’Ivoire ◽  
Coffee Plantations ◽  
Côte D'ivoire ◽  
High Tree Density

The inventory and the analysis of the woody species preserved in the different categories of cocoa and coffee plantations showed that they are relatively diversified (presence of endemic, rare and threatened species). They also preserved high tree density and high basal areas. The young plantations are especially diversified. Their number of species,density and basal areas and diversity index are similar to those of the neighbouring old growth and secondary forests. Older plantations display a sharp decline of diversity over time. Agricultural practices in the region represent a threat in the medium term to the preservation of biodiversity.

Taking advantage of natural regeneration potential in secondary forests to recover commercial tree resources in Côte d’Ivoire

2021 ◽  
Vol 493 ◽  
pp. 119240
Author(s):  
Goualo Y.A. Doua-Bi ◽  
Irie C. Zo-Bi ◽  
Bienvenu H.K. Amani ◽  
Aka G.M. Elogne ◽  
Justin K. N’dja ◽  
...  
Keyword(s):  
Cote D'ivoire ◽  
Natural Regeneration ◽  
Côte D’Ivoire ◽  
Secondary Forests ◽  
Regeneration Potential ◽  
Cote D’Ivoire ◽  
Côte D'ivoire

scholarly journals DYNAMICS OF GROWTH OF ALBIZIA ADIANTHIFOLIA AND ALBIZIA ZYGIA (TWO LOCAL LEGUMINOUS PLANTS WITH RAPID GROWTH) DURING THE REGENERATION OF THE POST-FARMING FALLOW AND DEGRADED SPACES

2018 ◽  
Vol 6 (9) ◽  
pp. 364-372
Author(s):  
Kouassi Kouadio Henri ◽  
Kouassi Roland Hervé ◽  
Amon Ano Denis-Esdras
Keyword(s):  
Cote D'ivoire ◽  
Rapid Growth ◽  
Woody Plants ◽  
Côte D’Ivoire ◽  
Woody Species ◽  
Significant Degree ◽  
Leguminous Plants ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Albizia Adianthifolia

The threat which is on the forests and wooded spaces of Africa and particularly those of Côte d'Ivoire is accentuated over the years. The quoted leading causes are the land pressure related to demography, the anarchistic exploitation of the forest woody plants and itinerant agriculture. In many cases, the afforestation is the recommended palliative measure. But with which woody plants does one retimber in Côte d'Ivoire? Which assessment are previous initiatives made? On several occasions the exotic woody plants with rapid growth were used without success. The main objective of this study is to identify local woody plants with rapid growths of which the use will contribute to a significant degree to fast regeneration of our forests, degraded spaces and the post-farming fallow. Floristic inventories and measurements were carried out on the stems of Albizia adianthifolia and Albizia zygia in elementary plots of 400 m ² (20m X 20m). Two local arborescent Leguminous plants with rapid growth were identified for this purpose. They were: Albizia adianthifolia and Albizia zygia. The experiments showed that these species reach the maximas of their growth in height and thickness as from nine (9) years. The sowing of the fallow and/or spaces degraded by these woody species supports the fast regeneration of these degraded spaces.

scholarly journals Determination of the Level of Aflatoxins Contamination in Maize (Zea mays L.) Produced in Five Regions of Côte d’Ivoire

2021 ◽  
pp. 21-31
Author(s):  
Sira Bamba ◽  
Henri Marius Godi Biego ◽  
Adama Coulibaly ◽  
Nyamien B. Yves ◽  
Sidibe Daouda
Keyword(s):  
Cote D'ivoire ◽  
High Performance ◽  
Côte D’Ivoire ◽  
Agricultural Practices ◽  
The European Union ◽  
Cote D’Ivoire ◽  
Maize Production ◽  
Côte D'ivoire ◽  
Aoac Method

Aims: The aim of this work is to assess the level of aflatoxins contamination in maize produced in five regions (Poro, Hambol, Gontougo, Gbêkê, Indénié-Djuablin) of Côte d'Ivoire. Place and duration of study: In this study 375 samples of maize (grains, cobs, spathes) were taken from February 2016 to January 2017 and the aflatoxin analyses were carried out at the Biotechnology Laboratory, Agriculture and Development of Biological Resources of the Félix Houphouët-Boigny University. Methodology: The aflatoxins (B1, B2, G1 and G2) were extracted and assayed by High Performance Liquid Chromatography (HPLC) according to the AOAC method. Results: The results indicate the presence of aflatoxins B1, B2, G1 and G2 in all forms of maize (grains, cobs, spathes) and in the five regions chosen for the study. The mean concentrations of aflatoxins B1 (AFB1) and the total aflatoxins (AFT) varied from 0.79 ± 0.04 µg/kg to 130.31 ± 22.56 µg/kg and from 2.63 ± 2,35 µg/kg to 169.13 ± 40.39 µg/kg respectively. samples from Indénié-Djuablin, Hambol and Gountougo regions showed the highest proportions of non-compliance with the european Union limit of 5 μg/kg and 10 μg/kg. Regarding AFB1, these proportions vary from 0% to 46% in the regions of Gbêkê, Poro and Hambol, while they are between 54% and 96% in the regions of Indénié-Djuablin and Gontougo. For total aflatoxins, the proportions of non-compliant samples were between 0% and 40% (Gbêkê and Poro), 12% and 56% (Hambol), 56% and 96% (Indénié-Djuablin and Gontougo). Conclusion: These results demonstrate a need for monitoring of maize production by stakeholders in the sector who should adopt good agricultural practices.

scholarly journals Ethnobotanical knowledge of medicinal values of Loranthaceae used to treat human diseases by local ethnic Agni Sanwi from Aboisso and Maferé in Côte d'Ivoire

2020 ◽  
Vol 4 (1) ◽  
pp. 039-050
Author(s):  
Amon Anoh Denis-Esdras ◽  
Ahoulou Assoum Stanislas ◽  
Achah Jacques Auguste Alfred Bognan ◽  
Sebe Fiba Doriane ◽  
Soro Dodiomon ◽  
...  
Keyword(s):  
Cote D'ivoire ◽  
Vascular Plants ◽  
Côte D’Ivoire ◽  
Woody Species ◽  
Traditional Healers ◽  
Ethnobotanical Knowledge ◽  
Structured Interviews ◽  
Informant Agreement ◽  
Cote D’Ivoire ◽  
Côte D'ivoire

Loranthaceae are hemiparasitic vascular plants that develop on other woody species. They are used in traditional medicine to treat various pathologies. The present study is a contribution to the knowledge of the medicinal potential of Loranthaceae used in care by Agni Sanwi of Aboisso and Maferé, in the South-East of Côte d'Ivoire. Ethnobotanical surveys were conducted with 50 herbalists and 17 traditional healers using semi-structured interviews. Three (3) species (Globimetula braunii, Phragmanthera capitata and Tapinanthus bangwensis) divided into 3 genera used to treat 35 diseases were identified. They have been cited in the formulation of several remedies. Malaria, typhoid fever, diarrhea and fontanelle were the most commonly reported conditions. Leaves and leafy twigs are the main organs used. The decoction has been predominant in the acquisition of remedies. The drink was the most cited as a method of administering treatments. The Frequency of Citations (FC) of the Loranthaceae employed in the care and medicinal Informant Agreement Ratio (med.IARs) of the respondents were determined. T. bangwensis had the highest FC (95.52%) and med.IARs (0.73). The therapeutic potentials of Loranthaceae have been highlighted and deserve to be popularized through complementary phytochemical investigations.

scholarly journals Faune ichtyologique du lac de barrage Solomougou (Korhogo, Côte d'Ivoire)

2020 ◽  
Vol 14 (7) ◽  
pp. 2528-2537
Author(s):  
Koffi Dongo Kouassi ◽  
Moustapha Diaby ◽  
Yaya Soro ◽  
Konan N’da
Keyword(s):  
Fish Species ◽  
Cote D'ivoire ◽  
Oreochromis Niloticus ◽  
Côte D’Ivoire ◽  
Diversity Index ◽  
Shannon Diversity Index ◽  
Cote D’Ivoire ◽  
Shannon Diversity ◽  
Côte D'ivoire ◽  
Relative Abundances

Le lac de barrage Solomougou, créé en 1973 à des fins agricoles, est exploité de nos jours pour les activités halieutiques. La présente étude y a été conduite en vue d’étudier sa diversité ichtyologique. Les captures des pêcheurs ont été analysées de janvier à décembre 2019. Les paramètres étudiés sont la richesse spécifique, les abondances spécifique et relative, le pourcentage d’occurrence ainsi que les indices de diversité spécifique de Shannon et Weaver et d’équitabilité de Piélou. Ainsi, 12950 spécimens répartis en quatorze familles, vingt-cinq genres et trente-sept espèces ont été répertoriés. Les trois familles comptant le plus d’espèces sont les Cichlidae (10 espèces), suivis des Mormyridae (6 espèces) et des Cyprinidae (5 espèces). Cependant, dans les captures totales, les Cichlidae (41,87%) sont toujours les plus nombreux, suivis des Alestidae (14,47%) et des Mochokidae (12,84%), chacune de ces deux dernières familles étant représentées par deux espèces. Enfin, en termes d’abondance relative spécifique, Brycinus imberi (14,41%), Synodontis schall (12,76%) et Oreochromis niloticus (11,62%) sont les plus représentatives. Relativement aux valeurs de fréquence d’occurrence, la pêcherie compte quatorze espèces accidentelles, une accessoire et vingt-deux constantes. Les valeurs de l’indice de diversité spécifique de Shannon et de l’indice d’équitabilité sont respectivement 3,9159 et 0,7517.Mots clés : Espèces de poissons, abondance, distribution, lac de barrage Solomougou, Côte d'Ivoire. English title: Ichtyological fauna of the Solomougou dam lake (Korhogo, Côte d'Ivoire) The Solomougou dam lake, created in 1973 for crop irrigation, is nowadays used for fishing activities. This study was conducted in order to understand the ichthyological diversity in this fishery. So, fishermen’s catches have been analyzed from January to December 2019 in order to identify fish species and to calculate their specific and relative abundances, their occurrence’s frequency as well as Shannon diversity index and Piélou equitability index. Thus, 12950 specimens including fourteen families, twenty-five genera and thirty-seven species have been recorded. The three families with the most species are Cichlidae (10 species), followed by Mormyridae (6 species) and Cyprinidae (5 species). However, taking into account the relative abundances of families in the total catches, Cichlidae (41.87%) are always the most numerous, followed by Alestidae (14.47%) and Mochokidae (12.84%), each of these last two families being represented by only two species. Finally, in terms of specific relative abundance, the three most dominant species are Brycinus imberi (14.41%), Synodontis schall (12.76%) and Oreochromis niloticus (11.62%). With regard to the occurrence’s frequency values, fourteen accidental species, one accessory and twenty-two constants have been identified. Shannon diversity index and Piélou equitability index are 3.9159 and 0.7517, respectively.Keywords: Fish species, abundance, distribution, Solomougou Dam Lake, Côte d'Ivoire.

scholarly journals Phytodiversity of agroforestry systems with coffee trees and degree of Loranthaceae infestation in the department of Daloa (Central-West, Côte d'Ivoire)

2021 ◽  
Vol 8 (08) ◽  
pp. 1-13
Author(s):  
AMON Anoh Denis-Esdras ◽  
◽  
SAKO Hamed El Amine ◽  
MRANKPA Agnero Stephane ◽  
SEGUENA Fofana ◽  
...  
Keyword(s):  
Plant Species ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Agroforestry Systems ◽  
Persea Americana ◽  
Cote D’Ivoire ◽  
Coffee Plantations ◽  
Spondias Mombin ◽  
Côte D'ivoire ◽  
Significant Difference

The floristic condition of the agroforestry systems established on coffee trees in Daloa, in the Central-West of the Côte d'Ivoire has been carried out. Surface surveys and itinerant surveys identified 123 species, 93 genera and 37 families. Euphorbiaceae and Moraceae are the most represented families. The study made it possible to count 52.03% of the species of the Guinean-Congolese region, 27.65% of the transition species (GC-SZ), 11.3% of the indeterminate species, 5.69% of the endemic species West African and 2.44% of the GCI block species. The degree of infestation of plant species evaluated shows that the values vary from 8.33% at Alchornea cordifolia to 79.17% in Spondias mombin. The results also indicated a significant difference between the degrees of infestation of plant species according to the DBH, the age of the coffee plantations. The rate of infestation of plant species is 33.35±9.84% and the intensity of infestation is 2.83±0.60 tufts/plant. The analysis of the degree of infestation among others of Albizia zygia, Cecropia peltata, Cola nitida, Persea americana, and Spondias mombin has made it possible to identify major problems of Loranthaceae infestation sources posed by the presence of these species in coffee plantations.

scholarly journals Apport des descripteurs qualitatifs dans l’identification des accessions de cocotier Grand pour les programmes de régénération des collections au champ

2020 ◽  
Vol 14 (2) ◽  
pp. 580-599
Author(s):  
Saraka Didier Martial Yao ◽  
Eric-Blanchard Zadjéhi Koffi ◽  
Wentia Alimata Marie-Pierre Daramcoum ◽  
Koffi Yoboue ◽  
Jean-Louis Konan Konan ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Diversity Index ◽  
Cote D’Ivoire ◽  
Qualitative Traits ◽  
Côte D'ivoire ◽  
Long Time ◽  
Qualitative Characters ◽  
Standardized Index

Les descripteurs qualitatifs ont été toujours négligés dans les études de caractérisation du cocotier surtout chez les écotypes de type Grand. Cet article se propose de mettre en évidence la contribution de six caractères morphologiques de type qualitatif dans la description et la typologie de 18 populations de cocotier Grand plantées dans la collection internationale de Côte d’Ivoire. Pour y arriver les stipes, les inflorescences, les fleurs femelles et les fruits ont été observés. Compte tenu à la fois de leurs fortes valeurs d’indice de diversité de Shannon normalisé (H’ variant entre 0,93 et 0,99) et faibles valeurs d’indice de diversité de Simpson (D variant entre 0,24 et 0,28), les caractères formes du fruit et de la noix débourrée ont été les plus discriminants. Les résultats de la classification des populations de cocotier Grand de la collection de Côte d’Ivoire utilisant les caractères qualitatifs sont en désaccord avec la structuration admise et fournie antérieurement à partir des marqueurs morphologiques quantitatifs et moléculaires microsatellites (SSRs). Bien que longtemps marginalisé dans l’étude de la diversité génétique des écotypes Grand de cocotier, l’apport des caractères qualitatifs dans l’identification de ces accessions de la collection de Côte d’Ivoire est discuté. Aussi, l’intérêt du recours aux descripteurs qualitatifs comme alternative aux marqueurs moléculaires pour le suivi de la pureté des accessions de cocotier au champ pendant les cycles de régénération est souligné.© 2020 International Formulae Group. All rights reserved. English abstract Qualitative morphological descriptors have always been neglected in coconut population’s characterization, especially in Tall coconut varieties. This paper proposes the contribution of six qualitative traits in the description and typology of 18 Tall coconut populations planted at the international field genebank of Côte d'Ivoire. Relatively to high values of standardized index of Shannon Weaver diversity H' (0.93 to 0.99) and low values of Simpson diversity index D (0.24 to 0.28), the two qualitative traits that are fruit and husked nut shapes were more discriminating. The results about clustering of the Tall coconut populations in Côte d'Ivoire genebank using all studied qualitative characters were in disagreement with the clustering assumed and provided before from quantitative traits and SSRs molecular markers. Although a long time marginalized in the genetic diversity studies, the contribution of the qualitative traits in the identification of Tall coconut populations in international field genebank of Côte d’Ivoire has been discussed. Also, the interest of recourse of the qualitative descriptors as alternative to the molecular markers for purity follow-up of the coconut accession during the cycles of field genebank regeneration is clearly underlined.

scholarly journals Secondary Forests in Equatorial Africa Côte d’Ivoire - Cameroon - F. E. A.

2015 ◽  
Vol 323 (323) ◽  
pp. 19
Author(s):  
André Aubréville ◽  
Ilona Bossanyi
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Secondary Forests ◽  
Cote D’Ivoire ◽  
Le Fort ◽  
Côte D'ivoire ◽  
Equatorial Africa ◽  
De Se ◽  
Aucoumea Klaineana

La « brousse  secondaire  »  s’oppose  à la « forêt primaire », forêt « noble » aux grands arbres. C’est une forêt exubérante, inextricable, avec plus de lianes et de petits bois que d’arbres, succédant à l’agricul- ture sur brûlis. Dans les régions habitées, elle entoure communément les villages et borde les routes, la forêt primaire étant reléguée aux collines rocheuses et maré- cages. En Afrique équatoriale, la « brousse secondaire » représente actuellement 50 à 75 % des surfaces forestières. La forma- tion des brousses secondaires procède en trois phases : (i) l’apparition de semis d’es- pèces héliophiles (Musanga sp., Vernonia sp., Anthocleista sp.) à croissance rapide, qui diffèrent des espèces de « forêt pri- maire » et dont les graines sont dispersées sur de longues distances ; (ii) la formation d’un sous-bois, constitué cette fois des mêmes espèces arbustives qu’en « forêt primaire », et où se mêle un second groupe d’espèces héliophiles banales, caractéris- tiques de la « brousse secondaire » et rat- trapant le précédent, voire le surcimant ;(iii) la lente reconstitution de la « forêt primaire », riche en sapotacées, guttifères et légumineuses au bois dur, capables de se régénérer dans les sous-bois, et parmi lesquelles de très grands arbres finissent par percer la voûte des cimes. L’okoumé (Aucoumea klaineana), essence précieuse typique des « brousses secondaires », est ainsi fréquent dans les prétendues « forêts primaires » du Gabon, forêts qui ont été en réalité autrefois défrichées. On ne saurait admettre aujourd’hui que le fort potentiel des « brousses secondaires » soit inva- riablement réduit en cendres. Il faut au contraire apprendre à guider et hâter leur évolution en faveur d’espaces à haute va- leur économique.Résumé adapté par la rédaction de la revue.

Évaluation de la qualité de vie (QDV) des patients diabétiques de type 2 au CHU de Yopougon, Abidjan, Côte d’Ivoire

2019 ◽  
Vol 13 (4) ◽  
pp. 369-374
Author(s):  
A. Yao ◽  
A. Hué ◽  
J. Danho ◽  
P. Koffi-Dago ◽  
M. Sanogo ◽  
...  
Keyword(s):  
Cote D'ivoire ◽  
Qualité De Vie ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Côte D'ivoire
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