| seasonal and age-related changes in blood parasite prevalence in dark-eyed juncos (junco hyemalis, aves, passeriformes). | we determined seasonal changes in blood parasite infections in a free-living population of dark-eyed juncos (junco hyemalis) breeding in interior alaska (65 degrees n; 148 degrees w). the common parasites found in blood smears were leucocytozoon fringillinarum (56%), trypanosoma avium (33%), and haemoproteus fringillae (9%). in males, parasite prevalences were relatively high at arrival on breeding grounds and increased during the breeding season. intensity of infection with leucocytozoon also i ... | 2001 | 11351333 |
| leucocytozoon fringillinarum and leucocytozoon dubreuili in turdus fuscater from a colombian páramo ecosystem. | leucocytozoon spp. infections have been rarely studied in neotropical countries. the apparently low prevalence of these parasites compared to the nearctic regions suggests the absence of competent vectors; however, a 21.3% overall prevalence has recently been reported in non-migratory birds from the páramo region of chingaza national natural park (nnp), where turdus fuscater (great thrush) is the species most frequently infected by these parasites. the present study provides the descriptions of ... | 2013 | 23046497 |
| hematozoa from montane forest birds in papua new guinea. | blood smears were examined from 141 montane forest birds of 45 species in southeastern papua new guinea. haemoproteus spp. occurred in 46 (32.6%), leucocytozoon fringillinarum woodcock, 1910 in five, trypanosoma sp. in one and haemogregarina sp. in one. intensity of infection by haemoproteus was highest in those avian species and families with the highest prevalence; increasing altitude had no demonstrable effect on the prevalence of haemoproteus spp. | 1985 | 3981752 |
| blood parasitaemia in a high latitude flexible breeder, the white-winged crossbill, loxia leucoptera: contribution of seasonal relapse versus new inoculations. | we measured seasonal changes in the prevalence of haematozoa (leucocytozoon fringillinarum, haemoproteus fringillae, and trypanosoma avium) in free-ranging white-winged crossbills, loxia leucoptera, over 1.5 year in fairbanks, alaska, usa. this prevalence was low during early winter. l. fringillinarum prevalence increased in late winter/early spring, in the absence of vectors, suggesting relapse of latent infection. by contrast, the prevalence of t. avium and h. fringillae did not increase until ... | 2010 | 19849885 |
| leucocytozoonosis in the israeli sparrow, passer domesticus biblicus hartert 1904. | among the 91 house sparrows (passer domesticus biblicus hartert, 1904) examined and caught in the jordan valley, israel, 79% were found to be infected with leucocytozoon fringillinarum woodcock 1910. in the coastal plain of israel (south of tel aviv), leucocytozoon infection was found in only 3 out of 43 examined sparrows. in the birds examined, leucocytozoon gametocytes were present, often in large numbers, in the circulating blood of the visceral organs, whereas they were only sporadic or even ... | 2005 | 15940526 |
| a comparison of the blood parasites in three subspecies of the yellow wagtail motacilla flava. | one-hundred and eighty yellow wagtails motacilla flava belonging to 3 subspecies (motacilla flava feldegg, motacilla flava flava, motacilla flava thunbergi) were caught during the spring migration in south kazakhstan and investigated by microscopic examination of stained blood smears. haemoproteus anthi, haemoproteus motacillae, leucocytozoon fringillinarum, leucocytozoon majoris, plasmodium relictum, plasmodium polare, atoxoplasma sp., trypanosoma sp., and microfilariae were identified. the ove ... | 2001 | 11534666 |
| occurrence of blood parasites and intensity of infection in prunella modularis in the montane and subalpine zone in the slovak carpathians. | the objective of this study was to obtain primary information on the occurrence of blood parasites and intensity of infection in the dunnock prunella modularis in the montane region of slovakia. altogether 109 birds were examined during the years 2006-2010. the occurrence of haemoproteus sp., leucocytozoon fringillinarum and trypanosoma sp. was documented. blood parasite prevalences of 45% by microscopic examination and 55% by pcr diagnostics were found. the prevalence of leucocytozoon sp. was f ... | 2012 | 22875671 |