| population genetic confirmation of species status of the malaria vectors anopheles willmori and an. pseudowillmori in thailand and chromosome phylogeny of the maculatus group of mosquitoes. | among the anopheles (cellia) maculatus group of oriental mosquitoes, positive assortative mating occurs within sympatric and synchronous populations of an.willmori and an.pseudowillmori in the presence of populations of an.maculatus and an.sawadwongporni, judged from the occurrence of inversion homozygotes and the absence of any heterozygotes in their distinctive, polytene chromosomes. genotypic frequencies for enzyme electromorphs give additional evidence for the species status of an.pseudowill ... | 1992 | 1463898 |
| heterochromatin variation in chromosome x in a natural population of anopheles willmori (diptera: culicidae) of thailand. | among the eight families of anopheles willmori derived from individual wild-caught females collected from chiangmai province (northern thailand) and examined, four isofemale lines showed variation in the x chromosome, including the normal x1 and three aberrant types (x3, x4 and xl). it is postulated that these different types of x chromosomes could have arisen as a result of spontaneous chromosomal rearrangements involving tandem translocation and paracentric inversion followed by acquisition of ... | 1996 | 8901140 |
| anopheles pseudowillmori is the predominant malaria vector in motuo county, tibet autonomous region. | malaria is endemic in linzhi prefecture in the tibet autonomous region (tar), but the vector for malaria transmission had never been identified. | 2009 | 19291287 |
| biting activity and host preference of the malaria vectors anopheles maculatus and anopheles sawadwongporni (diptera: culicidae) in thailand. | adult mosquitoes in the anopheles maculatus group were surveyed from different regions of thailand and five different species were morphologically identified, including anopheles maculatus, anopheles sawadwongporni, anopheles notanandai, anopheles dravidicus, and anopheles willmori. blood-feeding activity and host preference of two species, anopheles maculatus and anopheles sawadwongporni, were observed during a one-year period at pu teuy village, sai yok district, kanchanaburi province, west-ce ... | 2009 | 20836806 |
| the dominant anopheles vectors of human malaria in the asia-pacific region: occurrence data, distribution maps and bionomic precis. | abstract: background: the final article in a series of three publications examining the global distribution of 41 dominant vector species (dvs) of malaria is presented here. the first publication examined the dvs from the americas, with the second covering those species present in africa, europe and the middle east. here we discuss the 19 dvs of the asian-pacific region. this region experiences a high diversity of vector species, many occurring sympatrically, which, combined with the occurrence ... | 2011 | 21612587 |
| species composition, seasonal occurrence, habitat preference and altitudinal distribution of malaria and other disease vectors in eastern nepal. | it is increasingly recognized that climate change can alter the geographical distribution of vector-borne diseases (vbds) with shifts of disease vectors to higher altitudes and latitudes. in particular, an increasing risk of malaria and dengue fever epidemics in tropical highlands and temperate regions has been predicted in different climate change scenarios. the aim of this paper is to expand the current knowledge on the seasonal occurrence and altitudinal distribution of malaria and other dise ... | 2014 | 25430654 |
| outdoor malaria transmission in forested villages of cambodia. | despite progress in malaria control, malaria remains an important public health concern in cambodia, mostly linked to forested areas. large-scale vector control interventions in cambodia are based on the free distribution of long-lasting insecticidal nets (llins), targeting indoor- and late-biting malaria vectors only. the present study evaluated the vector density, early biting activity and malaria transmission of outdoor-biting malaria vectors in two forested regions in cambodia. | 2013 | 24044424 |
| malaria ecology along the thailand-myanmar border. | malaria in southeast asia frequently clusters along international borders. for example, while most of thailand is malaria free, the border region shared with myanmar continues to have endemic malaria. this spatial pattern is the result of complex interactions between landscape, humans, mosquito vectors, and malaria parasites. an understanding of these complex ecological and socio-cultural interactions is important for designing and implementing malaria elimination efforts in the region. this art ... | 2015 | 26437860 |
| anopheles (cellia) maculatus group: its spatial distribution and molecular characterization of member species in north-east india. | anopheles (cellia) maculatus is considered a group of at least nine formally named species. faced with the difficulty of correct morphological identification due to overlapping characters, several member species of the an. maculatus group are known to play important role in malaria transmission in the oriental region. current assemblage, distribution and vectorial importance of the member species within the maculatus group is far from clear in the north-eastern region of india. our study encompa ... | 2012 | 22771401 |
| crossing experiment of anopheles maculatus form k and anopheles willmori (james) (diptera: culicidae). | we recently reported crossing experiments between anopheles maculatus form k and five members of the maculatus group to support the specific status of form k. in the present study, we performed further crosses between form k and a sixth species of the maculatus group, anopheles willmori (james). low viability was observed in hybrid males and females. all hybrid males were sterile with atrophied testes, or partially sterile with abnormal spermatozoa. the hybrid females showed normal ovaries. the ... | 2008 | 18685865 |