| new species of haemosporidian parasites (haemosporida) from african rainforest birds, with remarks on their classification. | plasmodium (novyella) megaglobularis n. sp. was recorded in the olive sunbird cyanomitra olivacea, and plasmodium (novyella) globularis n. sp. and haemoproteus (parahaemoproteus) vacuolatus n. sp. were found in the yellow-whiskered greenbul andropadus latirostris in rainforests of ghana and cameroon. these parasites are described based on the morphology of their blood stages and a segment of the mitochondrial cytochrome b gene, which can be used for molecular identification and diagnosis of thes ... | 2008 | 18668264 |
| new malaria parasites of the subgenus novyella in african rainforest birds, with remarks on their high prevalence, classification and diagnostics. | blood samples from 655 passerine birds were collected in rainforests of ghana and cameroon and examined both by microscopy and polymerase chain reaction (pcr)-based techniques. the overall prevalence of plasmodium spp. was 46.6%, as determined by combining the results of both these diagnostic methods. in comparison to pcr-based diagnostics, microscopic examination of blood films was more sensitive in determining simultaneous infection of plasmodium spp., but both detection methods showed similar ... | 2009 | 19107524 |
| prevalence and diversity patterns of avian blood parasites in degraded african rainforest habitats. | land use changes including deforestation, road construction and agricultural encroachments have been linked to the increased prevalence of several infectious diseases. in order to better understand how deforestation affects the prevalence of vector-borne infectious diseases in wildlife, nine paired sites were sampled (disturbed vs. undisturbed habitats) in southern cameroon. we studied the diversity, prevalence and distribution of avian malaria parasites (plasmodium spp.) and other related haemo ... | 2009 | 19754513 |
| spatial variation of haemosporidian parasite infection in african rainforest bird species. | spatial heterogeneity influences the distribution, prevalence, and diversity of haemosporidian parasites. previous studies have found complex patterns of prevalence with respect to habitat characteristics and parasite genotype, and their interactions, but there is little information regarding how parasitemia intensity and the prevalence of co-infections may vary in space. here, using both molecular methods and microscopy, we report an analysis of the variation of parasitemia intensity and co-inf ... | 2010 | 19860532 |
| deforestation does not affect the prevalence of a common trypanosome in african birds. | in spite of numerous reports of avian trypanosoma spp. in birds throughout the world, patterns of the distribution and prevalence of these blood parasites remains insufficiently understood. it is clear that spatial heterogeneity influences parameters of parasite distributions in natural populations, but data regarding avian trypanosomes are scarce. using microscopy and molecular diagnostic methods, we analysed the variation of prevalence of avian trypanosoma parasites in two widespread african b ... | 2016 | 27421797 |
| trypanosoma naviformis sp. nov. (kinetoplastidae: trypanosomatidae) from widespread african songbirds, the olive sunbird (cyanomitra olivacea) and yellow-whiskered greenbul (andropadus latirostris). | trypanosoma naviformis n. sp. is described from the african olive sunbird cyanomitra olivacea in ghana based on the morphology of its hematozoic trypomastigotes and partial sequences of the small subunit ribosomal rna gene. this parasite belongs to the group of small non-striated avian trypanosomes (< 30 µm in length in average) with the kinetoplast situated close to the posterior end of the body. trypanosoma naviformis can be distinguished from other small avian trypanosomes due to its poorl ... | 2015 | 26624445 |
| nested cytochrome b polymerase chain reaction diagnostics detect sporozoites of hemosporidian parasites in peripheral blood of naturally infected birds. | some discrepancies between microscopy and pcr-based methods have been recently recorded in the diagnosis of leucocytozoon spp. infection in naturally infected birds. to clarify this issue, blood samples from 109 yellow-whiskered greenbuls andropadus latirostris were investigated using both the microscopic examination of blood films and a nested mitochondrial cytochrome b pcr. the overall prevalence of leucocytozoon spp. infection was 4% after the standard microscopic examination and 17% using th ... | 2009 | 19522549 |