| mites of the genus torotrogla (prostigmata: syringophilidae) from north american passerines. | five new quill mite species of the genus torotrogla kethley, 1970 (acari: syringophilidae) are described from north american passerines: t. aphelocoma sp.n. from aphelocoma californica (corvidae) and t. cardinalis sp.n. from cardinalis cardinalis (cardinalidae) in texas; and t. coccothraustes sp.n. from coccothraustes vespertinus (fringillidae), t. cyanocitta sp.n. from cyanocitta stelleri (corvidae), and t. piranga sp.n. from piranga ludoviciana (thraupidae) in california. a key to females of a ... | 2009 | 19351069 |
| mycoplasmosis in evening and pine grosbeaks with conjunctivitis in quebec. | an outbreak of conjunctivitis affected evening grosbeaks (coccothraustes vespertinus) and pine grosbeaks (pinicola enucleator) in quebec (canada) during the winter 1998-99. one to 30% of the individuals from these two species were sick at 13 feeding stations. sick birds were thin and had unilateral or bilateral catarrhal and lymphoplasmacytic conjunctivitis and rhinitis, and mucopurulent infra-orbital sinusitis. mycoplasmal organisms were isolated in cultures in an affected evening grosbeak and ... | 2001 | 11763749 |
| house finch (haemorhous mexicanus) conjunctivitis, and mycoplasma spp. isolated from north american wild birds, 1994-2015. | sampling wild birds for mycoplasma culture has been key to the study of house finch (haemorhous mexicanus) conjunctivitis, yielding isolates of mycoplasma gallisepticum spanning the temporal and geographic ranges of disease from emergence to endemicity. faced with the challenges and costs of sample collection over time and from remote locations for submission to our laboratory for mycoplasma culture, protocols evolved to achieve a practical optimum. herein we report making m. gallisepticum isola ... | 2016 | 27285414 |
| lutein-based plumage coloration in songbirds is a consequence of selective pigment incorporation into feathers. | many birds obtain colorful carotenoid pigments from the diet and deposit them into growing tissues to develop extravagant red, orange or yellow sexual ornaments. in these instances, it is often unclear whether all dietary pigments are used as integumentary colorants or whether certain carotenoids are preferentially excluded or incorporated into tissues. we examined the carotenoid profiles of three new world passerines that display yellow plumage coloration-the yellow warbler (dendroica petechia) ... | 2003 | 12892761 |
| structure and variation of the fringillidae (aves: passeriformes) mitochondrial dna control region and their phylogenetic relationship. | the control region is the major noncoding segment of animal mitochondrial dna. to infer the structure and variation of fringillidae mitochondrial dna control region, the entire control region sequences of 25 species were analyzed. the length of the control region sequences was very conserved (1230 ± 18) and can be separated into three domains. the frequency of both substitutions and gaps was highest in the third domain and lowest in the central region. the control region has the same flanking ge ... | 2016 | 27549748 |
| salmonellosis in songbirds in the canadian atlantic provinces during winter-summer 1997-98. | from winter 1997 to summer 1998, an epizootic of salmonellosis affected several species of songbirds over a large area of the eastern north american continent. this article describes the details of this epizootic in the canadian atlantic provinces, based on laboratory examination of dead affected birds and on suspected but unconfirmed cases of salmonellosis reported by members of the public. the common redpoll (carduelis flammea) was the species most often affected, followed by pine siskins (c. ... | 2000 | 10642873 |
| brueelia (phthiraptera: ischnocera: philopteridae) of north american nine-primaried oscines (aves: passeriformes: passerida) with descriptions of nine new species. | nine new species of chewing lice in the genus brueelia kéler, 1936 , are described from north american hosts. they are brueelia thorini n. sp. from haemorhous mexicanus frontalis (say, 1822) and haemorhous mexicanus potosinus griscom, 1928; brueelia straseviciusi n. sp. from haemorhous purpureus (gmelin, 1789); brueelia mattsonae n. sp. from coccothraustes vespertinus brooksi (grinnell, 1917); brueelia novemstriata n. sp. from icterus wagleri wagleri sclater, 1857, and i. parisorum bonaparte, 18 ... | 2019 | 31730417 |
| ecological analyses of nesting success in evening grosbeaks. | we studied the nesting success of evening grosbeaks (coccothraustes vespertinus) inhabiting two areas of the front range of the rocky mountains of colorado from 1983-1987. sixty-four nests were followed during building, incubating, brooding, and fledging; 54.7% were successful (young fledged). the largest number of nests failed during incubation. nests started later were more successful than nests begun earlier in the season. failure was most likely due to severe weather, abandonment during buil ... | 1989 | 28312159 |
| an ultrastructural study of the asexual development of a presumed isospora sp. in mononuclear, phagocytic cells of the evening grosbeak (hesperiphona vespertina). | merozoites of a presumed isospora species were invested by a close-fitting vacuole of host-cell origin following their entry into mononuclear, phagocytic cells of the evening grosbeak (hesperiphona vespertina). here, the merozoites transformed into trophozoites that were bound by a plasmalemma, beneath which lay short segments of the inner membrane complex from the pellicle of the former merozoite. nuclear division followed and in schizonts of various sizes (probably representing several asexual ... | 1980 | 7420242 |
| 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 |
| a review of the zumpti species group of the genus harpyrhynchoides (acariformes: harpirhynchidae)--ectoparasites of passerines. | the zumpti species group of the genus harpyrhynchoides (harpirhynchidae), parasites of passerines, is revised. a key to the species of this group is provided and data on host associations and geographic distribution of its constituent species are summarized. this group includes six previously recognized species: harpyrhynchoides alaudinus bochkov, 2000, h. brevis (ewing, 1911) comb. nov., h. heatherae bochkov and galloway, 2013, h. rubeculinus (cherny and sixl, 1971), h. vulgaris bochkov and gal ... | 2014 | 25543798 |
| house finch ( haemorhous mexicanus)-associated mycoplasma gallisepticum identified in lesser goldfinch ( spinus psaltria) and western scrub jay ( aphelocoma californica) using strain-specific quantitative pcr. | : in 1994 mycoplasma gallisepticum was found to be the etiologic agent of house finch ( haemorhous mexicanus) conjunctivitis, a rapidly expanding epidemic caused by a genetically discrete, house finch-associated strain of m. gallisepticum (hfmg). while most prominent in house finches, hfmg has been reported in other members of the family fringillidae, including american goldfinches ( spinus tristis), purple finches ( haemorhous purpureus), pine grosbeaks ( pinicola enucleator), and evening gros ... | 2018 | 29053429 |