scholarly journals Ressources Alimentaires De Eidolon helvum (Kerr, 1792), Espece Proche De La Menace (Abidjan, Côte d’Ivoire)

2017 ◽  
Vol 13 (3) ◽  
pp. 182
Author(s):  
Niamien Coffi Jean Magloire ◽  
Kadjo Blaise ◽  
Koné Kéassemon Cédessia Hervé ◽  
N’Goran Kouakou Eliézer

Food resources of the straw-colored fruit bats Eidolon helvum (Kerr, 1792), a near-threaned species in Abidjan-Plateau were studied from August 2007 to July 2008. Faeces collection under sleeping trees and direct observations were made in order to access qualitative composition and temporal distribution of food resources of Eidolon helvum. Results show that 16 species of plants grouped into eight families and classified in three categories of plant organs were exploited by these bats. Among them, three species of plants appeared for the first time in the diet of the frugivorous bats in Côte d’Ivoire. Fruit food resources were most abundant (83%) and fruits of Ficus genus were dominant (45%). The distribution of food resources varied with the season.

2019 ◽  
Vol 28 (2) ◽  
pp. 267-276
Author(s):  
A.I. Khalaim

A new data on distribution of 19 species of Tersilochinae (Ichneumonidae) belonging to the genera Allophrys Förster (four species), Aneuclis Förster (five spp.), Diaparsis Förster (eight spp.) and Tersilochus Holmgren (two spp.) in the Afrotropical Region are provided. Tersilochus abyssinicus Khalaim, 2006, syn. nov. is synonymised with T. moestus Holmgren, 1868. The subfamily Tersilochinae is recorded from Benin, Côte d’Ivoire, Mozambique, Niger, Nigeria, Sierra Leone, Togo, Zambia and Yemen for the first time.


2019 ◽  
Vol 10 (1) ◽  
pp. 94-124
Author(s):  
Bin ZHAO

AbstractThe Ghana/Côte d'Ivoire case is the first time that an ITLOS ad hoc chamber has addressed the lawfulness of unilateral hydrocarbon activities in a disputed maritime area. This paper analyzes the Chamber's ruling on Côte d'Ivoire's submission no. 2, which covers several important issues: the jurisdiction of the Chamber to decide on submission no. 2, the alleged violation of sovereign rights, and the alleged violation of Article 83(3) of UNCLOS. The paper argues that the Chamber's jurisdictional basis of forum prorogatum is questionable, and that there are inconsistent approaches between the Judgment and the Order of the provisional measures. Additionally, there are not only inconsistent understandings of the “Ivorian maritime area” within the same submission no. 2 by the Chamber, but also a logical gap in the Chamber's reasoning with regard to submission no. 2(iii). Consequently, the Chamber's inconsistent approaches may jeopardize the persuasiveness of its judgment.


1992 ◽  
Vol 82 (1) ◽  
pp. 67-72 ◽  
Author(s):  
P. Moyal ◽  
M. Tran

AbstractThe stem borer, Chilo aleniellus (Strand) (Lepidoptera, Pyralidae) is recorded for the first time as a pest of maize in the western part of the forest area of Côte d'lvoire. Descriptions are given of the larva (including chaetotaxy), the pupa, and adult genitalia. The geographical distribution of this species is presented, and its importance as a pest in Côte d'Ivoire is discussed.


2014 ◽  
Vol 65 (10) ◽  
pp. 849
Author(s):  
Koffi Mexmin Konan ◽  
Allassane Ouattara ◽  
Kouassi Sébastino Da Costa ◽  
Abouo Béatrice Adépo-Gourène ◽  
Germain Gourène

The length–length and length–weight relationships and condition factor for Macrobrachium vollenhovenii are described using samples collected from the rivers of Côte d’Ivoire. The maximum carapace lengths (CLs) registered for males and females were 63.00 and 53.60 mm, respectively. All relationships between body length and CL and weight and CL were found to be highly significant, with r2 > 0.76 (P < 0.001). In the length–length relation, the allometry coefficient (b) ranged from 0.75 to 1.46 and varied according to the considered length and groups. The value of b of the length–weight relationship varied from 2.55 to 3.30. Although the three allometry types were observed, overall, M. vollenhovenii exhibited negative allometry. The condition factor (K) did not significantly vary among males and females. The K value decreased from the eastern to western Côte d’Ivoire. The present study presents, for the first time, results on the allometric growth and condition factors of M. vollenhovenii from the rivers of Côte d’Ivoire. Further, a biological database is established for use by fishery managers and in further research on the ecology, reproductive biology and aquaculture potentialities of this species.


2021 ◽  
Vol 17 (34) ◽  
pp. 30
Author(s):  
Adou Yedehi Euphrasie ◽  
Blahoua Kassi Georges ◽  
Yeo Kolo ◽  
Konate Souleymane ◽  
Tiho Seydou

The Nile tilapia, Oreochromis niloticus is a fast growing fish and has a great importance for fisheries, aquaculture, and screen aquarium in Côte d’Ivoire. Parasitic infections constitute significant economic loss in fish production. The work based on Epidemiology of gill Monogenean parasites of O. niloticus from the Agneby River between August to December 2020, for the first time, was aimed to characterize the physicochemical parameters of this River, to inventory the gill Monogenean species in Nile tilapia, to analyze the parasitism as a function study areas and to highlight the parasite species’ distribution on the gill. A total of 102 specimens of fishes was sampled and examined for parasites. Gill helminthofauna of this fish consisted of Cichlidogyrus cirratus, C. tilapiae, C. halli and Scutogyrus longicornis. Fishes of the Agneby River at Agboville are more infested than the other ones due to environmental conditions. The examination of the two sides of the fish revealed that parasites species have the same affinity for the both sides of the fish. In contrast, at the level of the gill arch, these parasites preferred median gill arches (arches II and III).


2019 ◽  
Vol 41.3 ◽  
pp. 7000-7014
Author(s):  
Nakouana TIMITE ◽  
Charles SANGNE Yao ◽  
Kouassi Bruno KPANGUI ◽  
Yao Sadaiou Sabas BARIMA

1 RÉSUMÉ La forêt classée du Haut-Sassandra (FCHS) était l’une des forêts classées la mieux conservée avant la crise politico-militaire en Côte d’Ivoire. Cependant, elle a été massivement infiltrée par de nombreuses populations pendant la décennie de crises qu’a connue la Côte d’Ivoire de 2002 à 2011. La présente étude a pour objectif d’identifier les caractéristiques sociodémographiques des populations infiltrées et les pratiques culturales utilisées lors de la mise en place des plantations cacaoyères au sein de la FCHS. Pour y arriver, des enquêtes ont été réalisées de décembre 2017 à janvier 2018 auprès de 82 personnes sur environ une centaine de cacaoculteurs infiltrés dont les parcelles sont contenues dans le bloc 25 de la FCHS. Les enquêtes ont été suivies par des observations directes dans ces cacaoyères. Les résultats ont montré que 95,1 % des cacaoculteurs infiltrés sont des ressortissants Burkinabè, résidant dans les villages et campements riverains du bloc 25 de la FCHS. Ils sont majoritairement des jeunes cacaoculteurs ayant de petites plantations, généralement moins de 6 ha. La mise en place des plantations a débuté pendant la crise et s’est poursuivie après la période de conflits de 2011. Ces plantations ont été installées après défriche de la forêt par semis direct des fèves en utilisant un matériel végétal non sélectionné. Les fréquences de désherbage et de traitement phytosanitaire sont de deux à trois passages par an. Par ailleurs, la non maitrise des bonnes pratiques culturales cacaoyères, associée au manque d’encadrement (du fait de leur présence illégale au sein du domaine protégé de la FCHS), affecte le rendement annuel des plantations cacaoyères qui est d’environ 154 kg/ha contre 395 kg/ha au niveau national. Cocoa farms and farming practices within a federal area: the case of the classified forest of Haut-Sassandra (FCHS) (Côte d'Ivoire) SUMMARY The Haut-Sassandra classified forest (FCHS) was one of the best preserved classified forests before the politico-military crisis in Côte d'Ivoire. However, it was massively infiltrated by many populations during the decade of crises in Côte d'Ivoire from 2002 to 2011. The objective of this study is to identify the socio-demographic characteristics of the infiltrated populations and the farming practices used when setting up cocoa plantations within the FCHS. To achieve this, surveys were conducted from December 2017 to January 2018 among 82 people out of approximately 100 infiltrated cocoa farmers whose plots are contained in FCHS Block 25. The surveys were followed by direct observations in these cocoa farms. The results showed that 95.1% of infiltrated cocoa farmers are Burkinabe nationals, residing in villages and camps along the banks of FCHS Block 25. They are mainly young cocoa farmers with small plantations, generally less than 6 ha. The establishment of plantations began during the crisis and continued after the 2011 conflict period. These plantations were installed after clearing the forest by direct seeding of the beans using unselected plant material. The frequency of weeding and phytosanitary treatment is two to three times a year. In addition, the lack of good cocoa farming practices, combined with the lack of supervision (due to their illegal presence within the FCHS protected area), affects the annual yield of cocoa plantations, which is around 154 kg/ha compared to 395 kg/ha at national level.


2018 ◽  
Vol 14 (27) ◽  
pp. 215
Author(s):  
Johnson Félicia ◽  
Gbon Gueu Adolphe ◽  
Boga Jean Pierre

This study was conducted in two sides of Bingerville (Abatta and Anna) in southern Côte d'Ivoire. The objective was to inventory the entomofauna of poultry farms in order to verify the presence of Alphitobius diaperinus (Coleoptera: Tenebionidae) in Côte d'Ivoire. It also aimed to establish correlation between Alphitobius diaperinus density in livestock buildings and the loss on poultry production. Thirty (30) poultry buildings were investigated during 3 months. A survey questionnaire on farm characteristics, diseases and mortality was submitted to farmers. The poultry litter was collected, transported to the laboratory and excavated. Insects were determined and counted. A total of 19661 insects were collected on both sites. Alphitobius diaperinus accounts for 96.63% of collected insects. The statistical comparison showed that A. diaperinus is the most representative insect (P <0.0001). This insect is unevenly distributed in chicken farms (n = 89, F = 3.67, and P ˂ 0.00001). Out of 18998 Alphitobius diaperinus collected, a total of 14362 (75.60%) were recorded in the column of feeders and waterers, and only, 4636 (24.40%) off feeders and waterers’. The study also revealed a strong correlation (R = +0.88) between the density of A diaperinus and the loss on chicken production due to avian diseases such as Gumboro, Newcastle, and Mareck. This insect is suspected to be the vector of these aggressive diseases of poultry. Our results reveal for the first time, the effective presence of Alphitobius diaperinus in poultry farms in Côte d'Ivoire.


Nematology ◽  
1999 ◽  
Vol 1 (1) ◽  
pp. 85-94
Author(s):  
August Coomans ◽  
Pieter A.A. Loof ◽  
Michel Luc

AbstractX. nigeriense Luc, 1961 is redescribed on the basis of type material and specimens from Ivory Coast; the male of this species is described for the first time. X. nigeriense apud Bos and Loof (1985) and apud Sakwe and Coomans (1993) are both considered to be populations of X. dihysterum Lamberti et al., 1995. A population of X. mampara Heyns, 1979 is described from Lesotho. Some data are given on the juvenile stages of X. dihysterum and X. mampara. Redescription de Xiphinema nigeriense Luc, 1961 et observations sur X. dihysterum Lamberti et al., 1995 et X. mampara Heyns, 1979 (Nematoda: Dorylaimida) - Xiphinema nigeriense Luc, 1961 est redecrit a partir du materiel type et de specimens provenant de Cote d'Ivoire; le male de cette espece est decrit pour la premiere fois. X. nigeriense apud Bos et Loof (1985) et Sakwe et Coomans (1993) est considere comme appartenant a X. dihysterum Lamberti et al., 1995. Une population de X. mampara Heyns, 1979 provenant du Lesotho est decrite. Des donnees sont fournies sur les stades juveniles de ces deux dernieres especes.


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