A5091165335- Parasite Biology and Host Interactions
- Fish Biology and Ecology Studies
- Parasites and Host Interactions
- Cocoa and Sweet Potato Agronomy
- Helminth infection and control
- Agriculture and Rural Development Research
- Fish biology, ecology, and behavior
- Identification and Quantification in Food
- Insect-Plant Interactions and Control
- Insect Pest Control Strategies
- Parasitic Infections and Diagnostics
- Orthoptera Research and Taxonomy
- Phytoplasmas and Hemiptera pathogens
- Aquatic Ecosystems and Biodiversity
- Plant and animal studies
- African Botany and Ecology Studies
- Food Chemistry and Fat Analysis
- Animal Ecology and Behavior Studies
- Evolution and Paleontology Studies
- Mosquito-borne diseases and control
- Nematode management and characterization studies
- Bird parasitology and diseases
- Ecology and Vegetation Dynamics Studies
- Genetic diversity and population structure
- Wildlife Ecology and Conservation
Université de Yaoundé I
2016-2025
University of Douala
2019
Wuyi University
2017
University of Bacău
2016
Université de Dschang
2013
The genus Cryncus Gorochov, 1983 composed of African crickets is reported for the first time in Cameroon by description two new species collected at Zamakoe, Ongot and Engout’Adjap southern Cameroonian plateau during an inventory study carried out from March 2014 to September 2015. These are: camerounensis Um Nyobe, Kekeunou & Bilong sp. nov. desutterae Ma descriptions bring total number this 25. distinguished irregularly shaped mirror, without a dividing vein, with short apical field,...
We discuss geographical distribution and phylogeny of Dactylogyridea (Monogenea) parasitizing Cichlidae to elucidate their hosts' history. Although mesoparasitic Monogenea ( Enterogyrus spp.) show typical vicariant distribution, ectoparasitic representatives from different continents are not considered sister taxa, hence cannot result vicariance alone. Because the close host-parasite relationship, this might indicate that present-day cichlid may also reflect dispersal through coastal or...
In diet metabarcoding analyses, insufficient taxonomic coverage of PCR primer sets generates false negatives that may dramatically distort biodiversity estimates. this paper, we investigated the and complementarity three cytochrome c oxidase subunit I gene (COI) based on in silico analyses conducted an vivo evaluation using fecal spider web samples from different invertivores, environments, geographic locations. Our results underline lack predictability both individual sets: (a) sharp...
Parasite switches to new host species are of fundamental scientific interest and may be considered an important speciation mechanism. For numerous monogenean fish parasites, infecting different hosts is associated with morphological adaptations, in particular the attachment organ (haptor). However, haptoral morphology Cichlidogyrus spp. (Monogenea, Dactylogyridea), parasites African cichlids, has been mainly linked phylogenetic rather than constraints. Here we determined position amieti, a...
Insecticides are a key component of vector-based malaria control programmes in Cameroon. As part ongoing resistance surveillance efforts, Anopheles gambiae s.l. female mosquitoes were exposed to organochlorine (DDT), carbamate (bendiocarb), an organophosphate (malathion), and three pyrethroids (deltamethrin, lambda-cyhalothrin permethrin) WHO bioassay test kits. Results indicated higher level (reduced mortality knockdown effect) DDT populations A. s.s. than arabiensis. The West East African...
Tilapias are important aquaculture fishes that have been introduced widely all over the world, often carrying their monogenean parasites with them. An extensive investigation on monogeneans of invasive tilapias was conducted in 19 natural water sources south China between July 2015 and December 2017. We found nine known species monogeneans, i.e., Enterogyrus coronatus, E. malmbergi, Cichlidogyrus cirratus, C. halli, sclerosus, thurstonae, tilapiae, Scutogyrus longicornis, Gyrodactylus...
The origin of introduced Nile tilapia stocks in sub-Saharan Africa is largely unknown. In this study, the potential monogeneans as a biological tag and magnifying glass tested to reveal their hosts' stocking history. monogenean gill community different populations was explored, phylogeographic analysis performed based on mitogenomes four dactylogyrid species (Cichlidogyrus halli, C. sclerosus, thurstonae, Scutogyrus longicornis). Our results encourage use dactylogyrids tags. hypothesis only...
Fifty five medicinal plants belonging to different families selected on the basis of their traditional use against jaundice and various liver disorders were tested for amoebicidal activities. They extracted antiamoebic activity in vitro using polyxenic culture Entamoebic histolytica. As result, 14 exhibited an at a dose 100μg/ml from second fourth day incubation. The extracts additionnaly 6 days 10, 100 500μg/ml concentration, only leaves extract Codiaeum variegatum clear (EC50=10,74...
In the Upper Congo Basin, there are few records of monopisthocotylan parasites from clariids. More surveys clariid fishes can lead to discovery multiple species that new region or science. We aimed investigate parasite fauna belonging Quadriacanthus five in Basin by (i) inventorying composition and providing description when necessary, (ii) analysing their infection parameters. Clarias ngamensis, C. stappersii, buthupogon, gariepinus theodorae were purchased fishermen Lufira, Lubumbashi...
Abstract BACKGROUND: Field trapping experiments were conducted to evaluate the attractiveness of five different pheromone blends as well impact trap design on towards cocoa mirids, Sahlbergella singularis Hagl. and Distantiella theobroma (Dist.), in Cameroon. RESULTS: A total 361 adults S. (359 males two females) caught. The highest numbers mirids found traps with that combined a monoester diester, compared diester or individually control no pheromone. Rectangular caught significantly more...
A comparative in vitro study was carried out to determine the ovicidal and larvicidal activity of aqueous ethanolic extracts Ageratum conyzoides (Asteraceae) leaves on eggs (unembryonated embryonated), first second larval stages Heligmosomoides bakeri . Four different concentrations (0.625, 1.25, 2.5, 3.75 mg·mL −1 ) both were tested. Distilled water 5% tween used as negative controls bioassay. In fact, they did not affect development eggs, hatching, survival. The extract activities dose...
The increasing prevalence of anthelmintic-resistant strains helminths, drug residues in animal products and high cost conventional anthelmintics has created an interest studying medicinal plants as alternative source anthelmintic. potential nematicidal activities four extracts from the bark Canthium mannii (Rubiaceae) stem were investigated vitro. Extracts diluted distilled water (DW) to obtain five different concentrations (1.5, 2.0, 2.5, 3.0 3.5 mg/ml) put contact with eggs larvae...
Missoup, A.D., Nicolas, V., Wendelen, W., Keming, E., Bilong Bilong, C.F., Couloux, A., Atanga, Hutterer, R. & Denys, C. (2012). Systematics and diversification of Praomys species (Rodentia: Muridae) endemic to the Cameroon Volcanic Line (West Central Africa). — Zoologica Scripta , 41 327–345. Our integrative approach combines two mitochondrial genes (16S cyt b gene), nuclear (exon 10 GHR exon 1 IRBP) craniometrical data test status infer phylogenetic relationships three endemics ( P....
A checklist of the 23 species Ancyrocephalidae (Monogenea) parasitizing Tilapia sampled from both sides Cameroon Volcanic Line is provided. As already reported elsewhere, Cichlidogyrus aegypticus in shows two different shape its vagina, and C. tilapiae, arthracanthus tiberianus were found on a wide range host species. Among studied Monogenea, three are considered new described herein: berminensis n. sp. bemini, characterized by short penis with marked narrow heel, simple straight accessory...
The real impact of true bug damage on cocoa pods has never been assessed precisely. We conducted a 2-yr study 1,080 trees 36 farms in Cameroon to assess the contribution bugs fruit mortality and production loss. fruiting cycle, mortality, caused by as well other pests diseases were monitored weekly basis. True also was described 2,500 ripe per year. Pod weight, bean number, weight measured compared for different degrees types pods. Our results showed that main external cause young abortion....
HIV causes progressive impairment of the cellular immune system leading to increased susceptibility infectious agents. Parasitic infestations are common in HIV-infected patients and usually lead diarrhoea. Few studies have addressed issue intestinal parasites among persons Cameroon. This investigation was conducted Douala, Cameroon, assess prevalence gastrointestinal patients, taking into account their status treatment course.Stool blood samples were collected from 201 HIV-positive for...
This cross sectional study assessed the prevalence of intestinal protozoan and helminth infections in N’Djamena, Chad Republic, determined main epidemiological transmission factors these pathogens order to develop efficient control strategies parasites. Four hundred sixty two randomly selected persons, from eight quarters (administrative districts), age less than one year seventy six years old both sexes, were examined N’Djamena town. Out 462 samples, 235 (51%) found harbour at least...
The Cameroon volcanic line (CVL), which represents a major topographical feature of Central Africa, is poorly known concerning its small-mammal biodiversity. Situated in the Bamenda-Banso highland plateau, Mt Oku second highest peak (3011 m) CVL after Cameroon. Despite intensive cultivation and cattle grazing, especially Kilum-Idjim zone, has retained some relict mountain forests, yielded many endemic small mammals. We conducted new taxonomic inventories for mammals present results rodents...
Species of the monogenean genus Quadriacanthus mainly infect fish belonging to Siluriformes, especially genera Clarias, Heterobranchus or Bagrus, and their host specificity is strict (oioxenous) narrow (stenoxenous). An examination gills 19 Papyrocranus afer from Lake Ossa, South Cameroon, revealed for first time presence a species Notopteridae. The morphology size sclerotized parts haptor male female copulatory complexes suggest that this new named euzeti n. sp. differs taxonomically usual...