| trypanosomes of some sub-saharan birds. | linear measurements and derived indices from striated trypanosomes in nine species of sub-saharan birds representing seven families of the passeriformes, were compared. the dimensions of the striated trypomastigotes from the carduelinae, estrildidae, nectarinidae, passeridae, pycnonotidae, turdinae and zosteropidae were similar to each other as well as to those of the striated trypanosomes from the boreal owl (strigidae). all these trypanosomes were considered to be trypanosoma avium danilewsky, ... | 1994 | 7596580 |
| survey of blood parasites in two forest owls, northern saw-whet owls and flammulated owls, of western north america. | except for a few studies in the eastern united states, little has been published on hemoparasites in owls. we surveyed the blood parasites of 108 northern saw-whet owls (aegolius acadicus) and 24 flammulated owls (otus flammeolus) in idaho during autumn migration in 1999 and 2000. we also surveyed 15 flammulated owls (flow) during breeding season in utah from 2000. leucocytozoon ziemanni, haemoproteus syrnii, haemoproteus noctuae, and trypanosoma avium were identified. the overall prevalence of ... | 2008 | 18436683 |
| blood parasites and nest defense behaviour of tengmalm's owls. | infectious diseases are expected to negatively influence essential life history traits of an individual, because investment in immunological response occurs at the expense of reduced investment in other functions. here we present the first observational evidence that the prevalence of blood parasites is negatively associated with avian nest defense. because the defense of offspring entails a risk of serious physical harm to the parent, it is also assumed to be a good estimate of parental investm ... | 1998 | 28307907 |