Hematozoa of the avian family Brachypteraciidae (the ground-rollers)
ABSTRACT The Brachypteraciidae is an avian family endemic to Madagascar. Members of this family were mist-netted in Madagascar, and blood smears were made to screen for the presence of hematozoa. Smears were stained with Giemsa and examined at x100, x160, and x1000 for hematozoa. Three new species of avian hematozoa from wild-caught ground-rollers in Madagascar are described. Haemoproteus goodmani n. sp. is found in the pitta-like ground-roller (Atelornis pittoides), whereas Haemoproteus forresteri n. sp. and Leucocytozoon frascai n. sp. are from the rufous-headed ground-roller (Atelornis crossleyi). These represent the first hematozoa described from this family.
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- "Haemoproteus has been considered a relatively host-specific taxon, being restricted to a few bird species belonging to the same family (Bennett et al. 1994; Savage and Greiner 2004; Peirce and Adlard 2005; Hellgren et al. 2009). Haemoproteus parasites show a degree of host specificity that may be related to specific dynamics of vertebrate host and vector populations independent of regional differentiation (Bethany et al. 2014). "
ABSTRACT: The Medium Solimões River region in the Brazilian Amazon Basin is an area utilized for reproduction and nesting by a variety of species of migratory aquatic birds such as Black Skimmers (Rynchops niger). These migratory birds form mixed-species reproductive colonies with high population densities and exhibit a large range of migration routes. This study aimed to describe the prevalence and diversity of the avian malaria parasites Plasmodium and Haemoproteus in Black Skimmers, on the basis of the association between microscopic observation of blood smears and amplification of the mitochondrial cytochrome b gene (mtDNA cyt-b). The overall prevalence rates of the parasites for juvenile and adult bird specimens were 16 % (5/31) and 22 % (15/68), respectively. Sequencing the mtDNA cyt-b marker revealed two Plasmodium lineages, which had been previously described in different regions of the American continent, including a Neotropical region in Southeast Brazil, and one Haemoproteus lineage. The fact that avian malarial parasites have been found infecting the Black Skimmers in the Brazilian Amazon ecosystem, which exhibits considerable diversity, highlights the importance of these migratory birds as a potential source of infection and dispersion of pathogens to other susceptible birds of the Nearctic and Neotropical regions.Parasitology Research 07/2015; 114(10). DOI:10.1007/s00436-015-4622-9 · 2.10 Impact Factor
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ABSTRACT: Dicrurids are a widespread avian family in Africa and Asia. Earlier surveys of this family in these areas have reported the presence of hematozoa and 1 species of Haemoproteus, i.e., Haemoproteus dicruri (De Mello, 1935). One species of drongo occurs in Madagascar and has not been examined previously. Blood smears collected from wild-caught crested drongos, Dicrurus forficatus, in Madagascar were examined using a compound microscope for the presence of hematozoa. A new species, Haemoproteus khani, is described in this study. This new species has circumnuclear gametocytes, in contrast to the halteridial H. dicruri. In addition, H. dicruri is reported for the first time from the crested drongo and is redescribed. This is the first report of hematozoa in drongos of Madagascar.Journal of Parasitology 03/2005; 91(1):131-4. DOI:10.1645/GE-387R · 1.23 Impact Factor
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ABSTRACT: During a recent examination of blood smears from Malagasy birds, a species of avian Plasmodium unlike those currently known was observed. All infected birds were members of the Vangidae, which is endemic to Madagascar and the Comoro Islands. Plasmodium parvulum n. sp. is described, and classified as a member of the subgenus Haemamoeba because of gametocyte and schizont shape, displacement of the host cell nucleus, as well as distortion of the host cell. Round, rosettelike schizonts with 6-8 merozoites, clumped refractile granules, and little cytoplasm were observed. Both schizonts and mature, round gametocytes rotated and displaced the erythrocyte nucleus. A brief comparison to P. relictum is included.Journal of Parasitology 09/2005; 91(4):926-30. DOI:10.1645/GE-431R.1 · 1.23 Impact Factor