| an additional bone in the sclera of the eyes of owls and the common potoo (nictibius griseus) and its role in the contraction of the nictitating membrane. | morphometric, anatomical and histological examinations were made in 10 species of owls of the families tytonidae and strigidae and compared with the eyes of other species of nocturnal birds including common potoo (nictibiidae) and three species of nightjars (caprimulgidae) and two diurnal species: the roadside hawk (accipitridae) and the domestic duck (anatidae). in owls and the common potoo the nictitating membrane is situated on the dorsal edge of the eye. in these birds, the scleral ring bear ... | 1998 | 10072568 |
| first detection of bacillus anthracis in feces of free-ranging raptors from central argentina. | prevalence of anthrax spores in feces of raptors was determined from samples collected in november-december 2000 and april-may 2001 in an agricultural region of santa fé province, argentina. feces were tested from 48 birds of six raptor species. one of 14 chimango caracaras (milvago chimango) and one of eight road-side hawks (buteo magnirostris) tested positive. the prevalence of bacillus anthracis spores in feces for the six species was 4% (n=48). the prevalence was 7% (n=14) for chimango carac ... | 2007 | 17347404 |
| new records of three hippoboscid species on newly captured birds from nature in paraná, brazil. | the aims of this study was to provide new records of hippoboscid flies collected over an one-year period on newly captured birds from nature in the state of paraná, brazil. the birds were received by a wildlife center in tijucas do sul and the hippoboscid flies were collect by hand or by tweezers, generating a prevalence of 0.7% (16/2232) of parasitized birds. new information about distribution of hippoboscid flies on asio clamator, rupornis magnirostris and athene cunicularia was reported in th ... | 2016 | 27737369 |
| molecular phylogeny of the genus buteo (aves: accipitridae) based on mitochondrial marker sequences. | dna sequences of the mitochondrial nd6 gene and the non-repetitive part of the pseudo-control region (psicr) were isolated from 101 individuals to analyze the phylogenetic relationships among all buzzards of the genus buteo and other buteonine genera. comparisons of the two marker sequences indicate that the psicr evolved two times faster than the nd6 gene. the psicr proved to be an efficient, neutral genetic marker sequence for phylogenetic analyses at the intrageneric level, especially suitabl ... | 2003 | 12695095 |
| the correct identity of a louse sample (phthiraptera: menoponidae) from the roadside hawk, rupornis magnirostris (gmelin) (falconiformes: accipitridae). | a report of a louse sample identified as colpocephalum cholibae price & beer by oliveira et al. (2004), from the roadside hawk [rupornis magnirostris (gmelin)] in the state of são paulo, brazil, is regarded as a misidentification. a correction to the identity of the lice is given as kurodaia (kurodaia) fulvofasciata (piaget). key morphological differences between the genera colpocephalum and kurodaia are discussed, as well as possible reasons for the misidentification. | 2010 | 17420877 |
| procyrnea chabaud, 1958 (nematoda: habronematoidea: habronematidae) in birds from the area de conservación guanacaste, costa rica, including descriptions of 3 new species. | four species of procyrnea were collected in birds from the area de conservacion guanacaste, costa rica. procyrnea brevicaudata n. sp. in crypturellus cinnamomeus resembles p. ficheuri, p. murrayi, p. ameerae, p. dollfusi, and p. aptera in lacking lateral alae but differs from all these species in having 2 longitudinal ridges on the left side of the body, in having a sinistral rather than ventral vulvar opening, and in having dorsally bent rather than straight female tails. procyrnea mawsonae n. ... | 2004 | 15165061 |
| structural, cytochemical, immunocytochemical and ultrastructural characterization of blood granulocytes of the roadside hawk buteo magnirostris (gmelin, 1788) (avian, falconiform). | in the peripheral blood of the roadside hawk, buteo magnirostris, the following types of granulocytic leucocytes were identified: heterophil, eosinophil and basophil. the heterophils presented acidophilic and spindle shaped granules, the eosinophils possess spherical eosinophilic granules and the basophils showed spherical and basophilic granules. the heterophils and eosinophils presented positive cytochemical reaction to glycogen and basic polyaminoacid, while the eosinophils presented sudanoph ... | 2003 | 15137677 |
| chromosome painting in three species of buteoninae: a cytogenetic signature reinforces the monophyly of south american species. | buteoninae (falconiformes, accipitridae) consist of the widely distributed genus buteo, and several closely related species in a group called "sub-buteonine hawks", such as buteogallus, parabuteo, asturina, leucopternis and busarellus, with unsolved phylogenetic relationships. diploid number ranges between 2n = 66 and 2n = 68. only one species, l. albicollis had its karyotype analyzed by molecular cytogenetics. the aim of this study was to present chromosomal analysis of three species of buteoni ... | 2013 | 23922908 |
| multidisciplinary re-description of plasmodium (novyella) paranucleophilum in brazilian wild birds of the atlantic forest kept in captivity. | haemosporidian blood parasites of the plasmodium genus are the causative agents of avian malaria in many parts of the world. despite the great diversity of brazilian avifauna, few studies have been conducted to examine the haemosporidians of wild birds found in the brazilian atlantic forest, especially those kept in captivity. this study aimed to re-examine and further characterize the south american avian parasite plasmodium paranucleophilum using a multidisciplinary approach. blood samples wer ... | 2017 | 28477100 |
| comparison of electrolyte composition and crystallization patterns in bird and reptile tears. | to compare tear electrolytes and tear crystallization patterns in birds and reptiles, tears were sampled by schirmer tear test from 10 animals each of ara ararauna, amazona aestiva, tyto alba, rupornis magnirostris, chelonoidis carbonaria, and caiman latirostris, and 5 of caretta caretta. the aliquots were pooled to assess concentrations of total protein, chloride, phosphorus, iron, sodium, potassium, calcium, and urea. for the tear ferning test, samples of each species were observed under a pol ... | 2020 | 32903625 |
| the proteomics of roadside hawk (rupornis magnirostris), broad-snouted caiman (caiman latirostris) and loggerhead sea turtle (caretta caretta) tears. | tears play an important role in ocular surface protection, and help wild animals maintain visual acuity in the face of air and water friction. the proteomics of tears has only been described for mammals. the knowledge of the proteomics of wild animal tears can aid not only in the setting of normal standards for ocular disease studies in these animals, but also to base the search for new molecules to be used in ophthalmology therapeutics. we therefore set out to describe the proteomic profile of ... | 2020 | 32767984 |
| comparative analysis of tear composition in humans, domestic mammals, reptiles, and birds. | tears are an important component of the ocular surface protection mechanism and are in close contact with the corneal epithelium and the environment. their composition is well-known in humans; however, there are few investigations on the composition and function of tears in reptiles, birds and others mammals, which would elucidate the mechanisms governing the maintenance of ocular homeostasis. in this work, electrophoretic profiles and an evaluation of total protein, albumin, urea, glucose, and ... | 2020 | 32528986 |
| genetic diversity of toxoplasma gondii isolates obtained from free-living wild birds rescued in southeastern brazil. | recent studies carried out in brazil have shown that strains from the same toxoplasma gondii genotype can infect humans, domestic animals (dogs and cats) and animals slaughtered for human consumption (pigs, sheep, goats, and chickens), suggesting a common infection route. however, little is known about the importance of free-living wild birds within this epidemiological context. the objective of this work was to isolate, genotype, and evaluate the virulence for mice of new isolates of t. gondii ... | 2018 | 30479944 |
| the use of sulfur hexafluoride microbubbles for contrast-enhanced ocular ultrasonography of the pecten oculi in birds. | the pecten oculi is a vascular and pigmented structure localized within the posterior segment of all avian eyes. its primary function is not fully understood yet. | 2019 | 30109756 |
| yeasts and filamentous fungi in psittacidae and birds of prey droppings in midwest region of brazil: a potential hazard to human health. | birds of prey and from psittacidae family are host to fungal microbiota and play an important role in the epidemiology of zoonoses. few studies in the literature have characterized mycelial and yeast fungi in the droppings of these birds and correlated the isolates with the zoonotic potential of the microorganisms. droppings from 149 birds were evaluated and divided into two groups: captive: rhea americana araneipes, primolius maracana, ara ararauna, ara chloropterus, anodorhynchus hyacinthinus, ... | 2019 | 30304251 |
| antimicrobial resistance profile and biofilm production of microorganisms isolated from oropharynx of rupornis magnirostris (gmelin, 1788) and caracara plancus (miller, 1777). | the aim of this preliminary study was to identify microorganisms with antimicrobial resistance profile and biofilm producers in oropharynx of rupornis magnirostris and caracara plancus. six r. magnirostris and six c. plancus maintained in triage center for wild animals (cetas) facilities were studied. coagulase-positive staphylococci (cops), enterobacteria, and yeasts were identified by the biochemical analysis or maldi-tof mass spectrometry. the resistance profile of the microorganisms was anal ... | 2020 | 32695305 |
| the effects of predicted environmentally relevant concentrations of zno nanoparticles on the behavior of gallus gallus domesticus (phasianidae) chicks. | the toxicity of zno nanoparticles (nps) has been the subject of several investigations; however, concentrations much higher than the ones potentially found in the environment are often tested. in addition, groups of animals such as birds have not been used as model in studies in this field, fact that creates an important ecotoxicological gap in them. the aim of the present study is to investigate the effects of the exposure to environmentally relevant concentrations of zno nanoparticles on the a ... | 2018 | 30121481 |
| behavioral changes in japanese quails exposed to predicted environmentally relevant abamectin concentrations. | abamectin (aba) toxicity in fish, amphibian and mammals was already proven, but its effect on birds is almost unknown. thus, the aim of our study is to assess the impact of exposure to water with aba for 40 days at predicted environmentally relevant concentrations on the behavior of female japanese quails (coturnix coturnix japonica). the three following experimental groups (n = 10 each) were set: "control", quails exposed to drinking water, without aba, "ec1x" and "ec1000x" (0.31 mg a.i./l and ... | 2018 | 29913616 |