A5018497911- Amphibian and Reptile Biology
- Species Distribution and Climate Change
- Wildlife Ecology and Conservation
- Mosquito-borne diseases and control
- Viral Infections and Vectors
- Malaria Research and Control
- Genetic diversity and population structure
- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Genomics and Phylogenetic Studies
- Chromosomal and Genetic Variations
- Lepidoptera: Biology and Taxonomy
- Parasites and Host Interactions
- Bat Biology and Ecology Studies
- Primate Behavior and Ecology
- Evolution and Genetic Dynamics
- Animal Ecology and Behavior Studies
- Insect and Pesticide Research
- Insect Resistance and Genetics
- Animal Behavior and Reproduction
- Parasitic Diseases Research and Treatment
- Scarabaeidae Beetle Taxonomy and Biogeography
- Cancer Genomics and Diagnostics
- Environmental Toxicology and Ecotoxicology
- Insects and Parasite Interactions
University of Buea
2016-2025
The University of Texas Medical Branch at Galveston
2023
Western Kentucky University
2019
The biodiversity of West and Central Africa is understudied, including butterflies moths (Lepidoptera). Cameroon, through its position in between few biogeographic regions diversity habitats, an important hotspot lepidopteran diversity. However, the country also ranks low when it comes to local knowledge. During our long-term ecological projects Cameroonian part Gulf Guinea Highlands, we collected rich material moths, a number interesting faunistic records.In this study, report 31 species...
Abstract Aim Temporal dynamics of biodiversity along tropical elevational gradients are unknown. We studied seasonal changes Lepidoptera the only complete forest gradient in Afrotropics. focused on shifts species richness patterns, turnover communities and species’ ranges, latter often serving as an indicator global change effects mountain ecosystems. Location Mount Cameroon, Cameroon. Taxon Butterflies moths (Lepidoptera). Methods quantitatively sampled nine groups by bait‐trapping (16,800...
Sylvatic dengue viruses (DENV) are transmitted in an enzootic cycle between nonhuman primates and arboreal Aedes mosquitoes Southeast Asia West Africa. Although previous analyses have revealed the evolutionary processes among endemic (human) DENV, little is known about viral evolution sylvatic cycle. Through analysis of 14 complete coding regions Dengue type 2 virus sampled over a 33-year period, we show that both rate change pattern natural selection similar although latter uniquely high...
A total of 2,691 mosquitoes representing 17 species was collected from eight locations in southwest Cameroon and screened for pathogenic viruses. Ten isolates a novel reovirus (genus Dinovernavirus) were detected by culturing mosquito pools on Aedes albopictus (C6/36) cell cultures. virus that caused overt cytopathic effects isolated, but it did not infect vertebrate cells or produce detectable disease infant mice after intracerebral inoculation. The virus, tentatively designated Fako...
Moth diversity on Mount Cameroon, a critical biodiversity hotspot in the Afrotropics, remains understudied despite region's rich and unique ecosystems. In this study, 34 species of plume moths (Pterophoridae) were recorded from Cameroon region, including four new to science: Titanoptilusbigoti Ustjuzhanin & Kovtunovich, sp. nov., Titanoptilusmurkwe Hellinsiaekonjo Hellinsiamapanja nov. Images adult type specimen male genitalia for Titanoptilusmelanodonta Hampson, 1905 are published first...
Rickettsia africae was identified in seven (6%) of 118 patients with acute fevers unknown etiology proven not to be malaria or typhoid fever from clinics along the coastal region Cameroon by polymerase chain reaction (PCR) amplification and sequencing citrate synthase (gltA) outer membrane protein A (ompA) genes Rickettsia. The majority (71%) were female. Clinical manifestations included (100%), headache (71%), myalgia arthralgia (43%), pulmonary involvement (29%), diffuse rash (14%)....
Malaria is a serious health concern in Africa. In Cameroon, an endemic country where malaria remains major public problem, several control measures have been put place among which the use of insecticide-treated bednets (LLINs/ITNs) considered one core vector strategies. However, greatest challenges include ownership and utilisation by individuals households. Factors such as age, marital status, gender, education occupation household head, size, knowledge bednets, socioeconomic environmental...
Malaria in pregnancy is an immense public health problem with at least 50 million pregnant women living malaria endemic areas. To prevent and its complications the World Health Organization recommends use of intermittent preventive treatment sulfadoxine-pyrimethamine (IPTp-SP), insecticide-treated nets (ITNs), effective case management. In most countries Africa, 40% sleep under ITNs. Cameroon, about 90% receive first dose SP, while 64% take complete dose. Following 2011 mass-campaign free...
Abstract Although seasonality in the tropics is often less pronounced than temperate areas, tropical ecosystems show seasonal dynamics as well. Nevertheless, individual insects’ phenological patterns are still poorly understood, especially Afrotropics. To fill this gap, we investigated biodiversity of Lepidoptera communities at three rainforest localities foothills Mount Cameroon, West Africa, one wettest places world. Our multitaxa approach covered six lepidopteran groups (fruit‐feeding...
Abstract Dimorphisms between the sexes are common in vertebrates and may reflect divergent selective pressures operating on each sex. For example, species where males do not show territory defense or pronounced male–male combat, females typically larger than as fecundity selection will favor large female body size. This is often case frogs competition limited to calling behavior. Yet, whether differences reproductive strategies two reflected shape dimorphisms, how those affect relevant...
Agrochemicals misuse is a common practice in developing countries with many environmental implications. This work assessed the ecological risk of pesticides, utilised by farmers, on earthworms at lower slopes Mount Cameroon using Pesticide Risk Tropics to Man, Environment and Trade (PRIMET) model. PRIMET was developed 2008 modellers The Netherlands for use tropical regions. Data usage scheme ecotoxicological information collected keyed into three main outputs: Predicted Exposure...
Long-lasting insecticidal nets (LLINs) are effective tools at reducing malaria transmission. In Cameroon, following the first national mass distribution campaign in 2011, there has been no follow up on efficacy of LLINs distributed. The aim this report is to assess physical integrity and potency distributed three cities with contrasting socio economic status (SES) evaluate use care for bed owned by individuals.The study was conducted Limbe, Tiko Buea localities Fako division South West...
Malaria remains a major public health problem in Africa, and its prevalence Cameroon stands at 29%. Long Lasting Insecticide Nets (LLINs) were distributed 2011 to reduce malaria mortality morbidity; however, assessment of this intervention is scanty. The present study the Tombel district (THD) investigated impact distribution on prevalence. A total 31,657 hospital records from 3 facilities areas for 2010–2013 examined. Records 2010 provided predistribution baseline data, while those 2012...
The amphibian disease chytridiomycosis in amphibians is caused by the chytrid fungus Batrachochytrium dendrobatidis (Bd) and has resulted dramatic declines extinctions of populations worldwide. A hypervirulent, globally-dispersed pandemic lineage (Bd-GPL) thought to be largely responsible for population extinctions, although numerous endemic lineages have also been found. Recent reports linked emergence Bd Cameroon, a major hotspot African diversity. However, it not known whether Bd-GPL or...
Apart from floral morphology and colours perceived by the human eye, ultraviolet (UV) reflectance acts as an important visual advertisement of numerous flowering plant species for pollinators. However, effect UV signalling on attracting pollinators particular is still insufficiently studied, especially in Afrotropics. Therefore, we studied pollination system Hypoxis camerooniana montane grasslands Mount Cameroon, West/Central Africa. We focused mainly effects flowers' its visitors....
Background: Intestinal parasites are an important cause of morbidity and mortality a public health problem especially in tropical developing countries including Cameroon.The two main types intestinal helminths protozoa which causes infections immunocompromised individuals.Diabetes Mellitus (DM) is metabolic non-communicable disease person has high blood glucose.DM increasing our community today diabetics have been reported to be immunocompromised.The purpose this study was determine the...
Ilhéus virus (ILHV)(
Predicting species' capacity to respond climate change is an essential first step in developing effective conservation strategies. However, prioritization schemes rarely take evolutionary potential into account. Ecotones provide important opportunities for diversifying selection and may thus constitute reservoirs of standing variation, increasing the future adaptation. Here, we map patterns environmentally associated genomic craniometric variation central African rodent Praomys misonnei...