| comparative egg morphology of six species of the albimanus section of anopheles (nyssorhynchus) (diptera:culicidae). | scanning electron micrographs were used to describe and compare structures of eggs obtained from wild-caught females of 6 species of the albimanus section of anopheles (nyssorhynchus) from south america, which includes important regional vectors of human malaria. among species from the oswaldoi complex, eggs of anopheles oswaldoi (peryassu) were not differentiated from those of its sibling anopheles konderi galvão & damasceno, and eggs of the former species from brazil, ecuador, and suriname sho ... | 1997 | 9103756 |
| tetrahymenidae infection in mosquito populations in a malaria-endemic region of the amazon. | in a field survey performed in a malaria-endemic region of northern amazon, brazil, we encountered ciliate protozoa of the family tetrahymenidae infecting adults and larvae of the following mosquito species: culex sp., anopheles albitarsis l.s., anopheles strodei, anopheles mattogrossensis, anopheles darlingi, and anopheles oswaldoi l.s. based on morphological features and life style, we have tentatively identified the parasite as lambornella sp. the association appears pathogenic for the mosqui ... | 2006 | 16497321 |
| morphological analysis of three populations of anopheles (nyssorhynchus) nuneztovari gabaldón (diptera: culicidae) from colombia. | based on the results of comparative analyses of 1,039 specimens of several progenies of anopheles nuneztovarifrom three localities in colombia, eight costal wing spot patterns were observed. patterns i and iii were the most frequent: 77.96% and 11.36%, respectively. using the diagnostic characters ratio of the length of the basal dark area of hind tarsomere ii/length of hind tarsomere ii, ratio of the length of the humeral pale spot/length of the pre-humeral dark spot, and the ratio of the lengt ... | 2008 | 18368239 |
| malaria transmission in two localities in north-western argentina. | malaria is one of the most important tropical diseases that affects people globally. the influence of environmental conditions in the patterns of temporal distribution of malaria vectors and the disease has been studied in different countries. in the present study, ecological aspects of the malaria vector anopheles (anopheles) pseudopunctipennis and their relationship with climatic variables, as well as the seasonality of malaria cases, were studied in two localities, el oculto and aguas blancas ... | 2009 | 19152707 |
| salivary polytene chromosome map of anopheles darlingi, the main vector of neotropical malaria. | new photomap of anopheles (nyssorhynchus) darlingi root, 1926, is described for a population from guajará-mirim, state of rondonia, brazil. the number of sections in the previous a. darlingi reference map was maintained and new subsections were added to the five chromosome arms. breakage points of paracentric inversions had been previously incorporated into the photomap of this species. an additional inversion is reported, called 3lc, totaling 14 inversions in the a. darlingi chromosome arms. th ... | 2010 | 20682862 |
| phylogenetic analysis and dna-based species confirmation in anopheles (nyssorhynchus). | specimens of neotropical anopheles (nyssorhynchus) were collected and identified morphologically. we amplified three genes for phylogenetic analysis-the single copy nuclear white and cad genes, and the coi barcode region. since we had multiple specimens for most species we were able to test how well the single or combined genes were able to corroborate morphologically defined species by placing the species into exclusive groups. we found that single genes, including the coi barcode region, were ... | 2013 | 23390494 |
| a multi-locus approach to barcoding in the anopheles strodei subgroup (diptera: culicidae). | the ability to successfully identify and incriminate pathogen vectors is fundamental to effective pathogen control and management. this task is confounded by the existence of cryptic species complexes. molecular markers can offer a highly effective means of species identification in such complexes and are routinely employed in the study of medical entomology. here we evaluate a multi-locus system for the identification of potential malaria vectors in the anopheles strodei subgroup. | 2013 | 23597081 |
| new classification of natural breeding habitats for neotropical anophelines in the yanomami indian reserve, amazon region, brazil and a new larval sampling methodology. | here we present the first in a series of articles about the ecology of immature stages of anophelines in the brazilian yanomami area. we propose a new larval habitat classification and a new larval sampling methodology. we also report some preliminary results illustrating the applicability of the methodology based on data collected in the brazilian amazon rainforest in a longitudinal study of two remote yanomami communities, parafuri and toototobi. in these areas, we mapped and classified 112 na ... | 0 | 26517655 |
| comparison of transmission parameters between anopheles argyritarsis and anopheles pseudopunctipennis in two ecologically different localities of bolivia. | anopheles (anopheles) pseudopunctipennis is a recognized malaria vector in the slopes of the andes of bolivia. there, other species might be involved in malaria transmission and one candidate could be anopheles argyritarsis. although it is generally admitted that this species is not a malaria vector in the neotropical region, its potential role in transmission is still controversial and this situation has to be cleared, at least for bolivia. comparing the vectorial efficiency of an. pseudopuncti ... | 2013 | 23941216 |
| contribution of fish farming ponds to the production of immature anopheles spp. in a malaria-endemic amazonian town. | in the past decade fish farming has become an important economic activity in the occidental brazilian amazon, where the number of new fish farms is rapidly increasing. one of the primary concerns with this phenomenon is the contribution of fishponds to the maintenance and increase of the anopheline mosquito population, and the subsequent increase in human malaria burden. this study reports the results of a 2-year anopheline abundance survey in fishponds and natural water bodies in a malaria-ende ... | 2015 | 26573145 |
| is there an efficient trap or collection method for sampling anopheles darlingi and other malaria vectors that can describe the essential parameters affecting transmission dynamics as effectively as human landing catches? - a review. | distribution, abundance, feeding behaviour, host preference, parity status and human-biting and infection rates are among the medical entomological parameters evaluated when determining the vector capacity of mosquito species. to evaluate these parameters, mosquitoes must be collected using an appropriate method. malaria is primarily transmitted by anthropophilic and synanthropic anophelines. thus, collection methods must result in the identification of the anthropophilic species and efficiently ... | 0 | 25185008 |
| wing sexual dimorphism of pathogen-vector culicids. | sexual dimorphism in animals has been studied from different perspectives for decades. in 1874 darwin hypothesized that it was related to sexual selection, and even after nearly 140 years, when additional empirical data has become available and the subject has been investigated from a contemporary viewpoint, this idea is still supported. although mosquito (culicidae) wings are of great importance as they play a sex-specific role, little is known about wing sexual dimorphism in these pathogen-vec ... | 2015 | 25890192 |
| resurrection of two species from synonymy of anopheles (nyssorhynchus) strodei root, and characterization of a distinct morphological form from the strodei complex (diptera: culicidae). | anopheles albertoi unti and anopheles arthuri unti are revived from the synonymy with anopheles strodei root, and a distinct morphological form (designated in this study as anopheles cp form) from the strodei complex of anopheles (nyssorhynchus) is characterized. the male genitalia of an. arthuri and an. albertoi are described and illustrated for the first time. an. strodei, an. arthuri, and an. albertoi were first distinguished based on scanning electron microphotos of the eggs, and then each e ... | 2010 | 20695266 |
| satellite-derived ndvi, lst, and climatic factors driving the distribution and abundance of anopheles mosquitoes in a former malarious area in northwest argentina. | distribution and abundance of disease vectors are directly related to climatic conditions and environmental changes. remote sensing data have been used for monitoring environmental conditions influencing spatial patterns of vector-borne diseases. the aim of this study was to analyze the effect of the normalized difference vegetation index (ndvi) and land surface temperature (lst) obtained from the moderate resolution imaging spectroradiometer (modis), and climatic factors (temperature, humidity, ... | 2015 | 26047182 |
| geometric morphometrics for the taxonomy of 11 species of anopheles (nyssorhynchus) mosquitoes. | the subgenus anopheles (nyssorhynchus) (diptera: culicidae) includes the primary vectors of plasmodium spp. in colombia. most adult females of this subgenus are difficult to identify in the field using the available keys. with the objective of further investigating the discriminatory power of modern morphometrics, both landmark-based and outline-based approaches were explored using the wing venation geometry of 11 anopheles (nyssorhynchus) species. wing shape was able to separate the closest spe ... | 2015 | 25393150 |
| composition of anopheline (diptera: culicidae) community and its seasonal variation in three environments of the city of puerto iguazú, misiones, argentina. | in order to extend the knowledge of the composition of the anopheline community and the seasonal variation related to anthropogenic modifications in the city of puerto iguazú, adult females were captured between 2009 and 2012. samples were collected in three environments with different degrees of anthropogenic modification: urban, periurban, and wild. alpha diversity was evaluated as the 'true' diversity of the species in each environment. among environments, range-abundance curves were used to ... | 2017 | 29194513 |