| afro-tropical anopheline mosquitoes. iii. description of three new species: anopheles carnevalei sp. nov., an. hervyi sp. nov., and an. dualaensis sp. nov., and resurrection of an. rageaui mattingly and adam. | anopheles (cellia) carnevalei sp. nov. is described as a new species morphologically similar to anopheles nili. this aggressive human biter was collected in ivory coast. anopheles (cellia) hervyi sp. nov. was collected in southern niger and is described as a new species morphologically similar to anopheles salbaii. anopheles (cellia) dualaensis sp. nov. is a new species from duala in southern cameroon. the synonymy of anopheles cavernicolus and anopheles smithii is confirmed. based on extensive ... | 1999 | 10612618 |
| spatial variability in the density, distribution and vectorial capacity of anopheline species in a high transmission village (equatorial guinea). | malaria transmission varies from one country to another and there are also local differences in time and space. an important variable when explaining the variability in transmission is the breeding behaviour of the different vector species and the availability of breeding sites. the aim of this study was to determine the geographical variability of certain entomological parameters: human biting rate (hbr), sporozoitic index (si) for plasmodium falciparum and entomological inoculation rate (eir). | 2006 | 16556321 |
| complexity of the malaria vectorial system in cameroon: contribution of secondary vectors to malaria transmission. | malaria transmission in africa is a dynamic and complex system that is so far superficially understood. further knowledge is required to improve control of the disease. in the present report, we highlight the contribution of the so-called "secondary" malaria vectors to the overall parasite transmission intensity in several sites across cameroon, through a retrospective analysis of surveys from the organisation de coordination pour la lutte contre les endémies en afrique centrale database. in tot ... | 2006 | 17162956 |
| population genetic structure of the malaria vector anopheles nili in sub-saharan africa. | anopheles nili is a widespread efficient vector of human malaria parasites in the humid savannas and forested areas of sub-saharan africa. understanding an. nili population structure and gene flow patterns could be useful for the development of locally-adapted vector control measures. | 2010 | 20540796 |
| multigene phylogenetics reveals temporal diversification of major african malaria vectors. | the major vectors of malaria in sub-saharan africa belong to subgenus cellia. yet, phylogenetic relationships and temporal diversification among african mosquito species have not been unambiguously determined. knowledge about vector evolutionary history is crucial for correct interpretation of genetic changes identified through comparative genomics analyses. in this study, we estimated a molecular phylogeny using 49 gene sequences for the african malaria vectors an. gambiae, an. funestus, an. ni ... | 2014 | 24705448 |
| ape malaria transmission and potential for ape-to-human transfers in africa. | recent studies have highlighted the large diversity of malaria parasites infecting african great apes (subgenus laverania) and their strong host specificity. although the existence of genetic incompatibilities preventing the cross-species transfer may explain host specificity, the existence of vectors with a high preference for a determined host represents another possibility. to test this hypothesis, we undertook a 15-mo-long longitudinal entomological survey in two forest regions of gabon, whe ... | 2016 | 27071123 |
| haemosporidian parasites of antelopes and other vertebrates from gabon, central africa. | re-examination, using molecular tools, of the diversity of haemosporidian parasites (among which the agents of human malaria are the best known) has generally led to rearrangements of traditional classifications. in this study, we explored the diversity of haemosporidian parasites infecting vertebrate species (particularly mammals, birds and reptiles) living in the forests of gabon (central africa), by analyzing a collection of 492 bushmeat samples. we found that samples from five mammalian spec ... | 2016 | 26863304 |
| genetic diversity and signatures of selection of drug resistance in plasmodium populations from both human and mosquito hosts in continental equatorial guinea. | in plasmodium, the high level of genetic diversity and the interactions established by co-infecting parasite populations within the same host may be a source of selection on pathogen virulence and drug resistance. as different patterns have already been described in humans and mosquitoes, parasite diversity and population structure should be studied in both hosts to properly assess their effects on infection and transmission dynamics. this study aimed to characterize the circulating populations ... | 2013 | 23537170 |
| cryptic genetic diversity within the anopheles nili group of malaria vectors in the equatorial forest area of cameroon (central africa). | the anopheles nili group of mosquitoes includes important vectors of human malaria in equatorial forest and humid savannah regions of sub-saharan africa. however, it remains largely understudied, and data on its populations' bionomics and genetic structure are crucially lacking. here, we used a combination of nuclear (i.e. microsatellite and ribosomal dna) and mitochondrial dna markers to explore and compare the level of genetic polymorphism and divergence among populations and species of the gr ... | 2013 | 23516565 |
| habitat suitability and ecological niche profile of major malaria vectors in cameroon. | suitability of environmental conditions determines a species distribution in space and time. understanding and modelling the ecological niche of mosquito disease vectors can, therefore, be a powerful predictor of the risk of exposure to the pathogens they transmit. in africa, five anophelines are responsible for over 95% of total malaria transmission. however, detailed knowledge of the geographic distribution and ecological requirements of these species is to date still inadequate. | 2009 | 20028559 |
| distribution and larval habitat characterization of anopheles moucheti, anopheles nili, and other malaria vectors in river networks of southern cameroon. | despite their importance as malaria vectors, little is known of the bionomic of anopheles nili and anopheles moucheti. larval collections from 24 sites situated along the dense hydrographic network of south cameroon were examined to assess key ecological factors associated with these mosquitoes distribution in river networks. morphological identification of the iii and iv instar larvae by the use of microscopy revealed that 47.6% of the larvae belong to an. nili and 22.6% to an. moucheti. five v ... | 2009 | 19682965 |
| a pre-intervention study of malaria vector abundance in rio muni, equatorial guinea: their role in malaria transmission and the incidence of insecticide resistance alleles. | following the success of the malaria control intervention on the island of bioko, malaria control by the use of indoor residual spraying (irs) and long-lasting insecticide-treated nets (llitn) was extended to rio muni, on the mainland part of equatorial guinea. this manuscript reports on the malaria vectors present and the incidence of insecticide resistant alleles prior to the onset of the programme. | 2008 | 18823554 |
| description and bionomics of anopheles (cellia) ovengensis (diptera: culicidae), a new malaria vector species of the anopheles nili group from south cameroon. | mosquito species of the anopheles nili group (diptera: culicidae) transmit malaria to humans along rivers in africa. to date, the an. nili group includes the species anopheles nili s.s. and its pale-winged variant known as the "congo form," anopheles somalicus and anopheles carnevalei. larval and adult mosquito collections in the forest region of campo, in southern cameroon, uncovered an additional morphological variant provisionally called "oveng form" that was subsequently found to be genetica ... | 2004 | 15311444 |