| involvement of birds in the epidemiology of the lyme disease agent borrelia burgdorferi. | borrelia burgdorferi, the causative agent of lyme disease, was isolated from the liver of a passerine bird, catharus fuscescens (veery), and from larval ixodes dammini (tick) feeding on pheucticus ludovicianus (rose-breasted grosbeak) and geothlypis trichas (common yellowthroat). in indirect immunofluorescence antibody tests, isolates reacted with polyclonal and monoclonal (h5332) antibodies. studies on the dna composition of the veery liver isolate and the strain cultured from an i. dammini lar ... | 1986 | 3943893 |
| territorial and sexual behavior in the rose-breasted grosbeak, pheucticus ludovicianus (l.). | | 1966 | 6011495 |
| a hybrid zone revisited: molecular and morphological analysis of the maintenance, movement, and evolution of a great plains avian (cardinalidae: pheucticus) hybrid zone. | black-headed grosbeaks (pheucticus melanocephalus) and rose-breasted grosbeaks (pheucticus ludovicianus) are passerine bird species known to hybridize in the great plains of north america. both extrinsic (environmental) and intrinsic factors (pre- and postzygotic reproductive isolation) have been credited for the generation and maintenance of the grosbeak hybrid zone, but little is known about the genetic characteristics of this hybrid zone. to investigate the stability and extent of the grosbea ... | 2009 | 19619198 |
| longitudinal studies of west nile virus infection in avians, yucatán state, méxico. | following the introduction of west nile virus (wnv) into north america in 1999, surveillance for evidence of infection with this virus in migratory and resident birds was established in yucatán state, méxico in march 2000. overall, 8611 birds representing 182 species and 14 orders were captured and assayed for antibodies to wnv. of these, 5066 (59%) birds were residents and 3545 (41%) birds were migrants. twenty-one (0.24%) birds exhibited evidence of flavivirus infection. of these, 8 birds had ... | 2004 | 15018768 |
| the genus atoxoplasma (protozoa, apicomplexa). | the apicomplexan protozoan genus atoxoplasma garnham, 1950 is resurrected and the family atoxoplasmatidae n. fam. established for homoxenous blood parasites of birds that develop asexually in both the blood and intestinal cells, and form oocysts that are passed unsporulated in the feces, sporulate on the ground, and then infect new hosts. a list of 19 species of atoxoplasma is given. atoxoplasma desseri n. sp. of the evening grosbeak coccothraustes vespertinus and rose-breasted grosbeak pheuctic ... | 1982 | 7119994 |