| [detection of dna of the finch polyomavirus in diseases of various types of birds in the order passeriformes]. | between 2000 and 2004 a disease occurred in an aviary in germany affecting various bird species belonging to the order passeriformes including collared grosbeaks (mycerobas affinis), eurasian bullfinches (pyrrhula pyrrhula griseiventris), brown bullfinches (pyrrhula nipalensis), grey-headed bullfinches (pyrrhula erythaca) and yellow-bellied tits (periparus venustulus). the major clinical signs included increased mortality of fledglings and young birds, as well as feather disorders and feather lo ... | 2007 | 17416133 |
| morphological and molecular characterization of eimeria labbeana-like (apicomplexa:eimeriidae) in a domestic pigeon (columba livia domestica, gmelin, 1789) in australia. | an eimeria species is described from a domestic pigeon (columba livia domestica). sporulated oocysts (n = 35) were subspherical, with a smooth bi-layered oocyst wall (1.0 μm thick). oocysts measured 20.2 × 16.1 (22.0-18.9 × 15.7-18.9) μm, oocyst length/width (l/w) ratio, 1.38. oocyst residuum and a polar granule were present. the micropyle was absent. sporocysts are elongate-ovoid, 13.0 × 6.1 (14.5-12.5 × 5.5-7.0) μm, sporocyst l/w ratio, 2.13 (2.0-2.2), sporocyst residuum was present, composed ... | 2016 | 27080159 |
| strict allopatric speciation of sky island pyrrhula erythaca species complex. | increasing evidence of post-divergence gene flow between taxa is shifting our understanding on the mode of speciation. a fundamental question arises concerning the circumstances under which strict allopatric speciation still holds true. sky island populations might undergo reduced gene flow by niche conservatism to highland habitats and follow divergence in an allopatric manner. in this study, we tested this hypothesis in the sky island grey-headed bullfinch (pyrrhula erythaca) species complex v ... | 2020 | 32818596 |