Publications

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faecal virome analysis of wild animals from brazil.the brazilian cerrado fauna shows very wide diversity and can be a potential viral reservoir. therefore, the animal's susceptibility to some virus can serve as early warning signs of potential human virus diseases. moreover, the wild animal virome of this biome is unknown. based on this scenario, high-throughput sequencing contributes a robust tool for the identification of known and unknown virus species in this environment. in the present study, faeces samples from cerrado birds (psittacara le ...201931480274
morphological analysis of the tongue and the digestive tube of saffron finch (sicalis flaveola brasiliensis, linnaues 1766) apprehended by cetas/ibama-pb.the saffron finch (sicalis flaveola brasiliensis) is a passeriforme of the brazilian wildlife. there are scarcely any morphological studies on it, although it is frequently trafficked for its birdsong abilities. its peculiarities, such as territorialism and developed syrinx that provides outstanding song, draw attention towards its domestication. thus, this study aimed to morphologically describe the tongue and digestive tube organs of this species to furnish subsidies for nutritional, clinical ...201423464601
reference values for the production of the aqueous fraction of the tear film measured by the standardized endodontic absorbent paper point test in different exotic and laboratory animal species.the aqueous fraction of the tear film and the horizontal palpebral fissure length (hpfl) were measured in exotic and laboratory animals, specifically saffron finches (sicalis flaveola), chestnut-bellied seed-finches (sporophila angolensis), red-eared sliders (trachemys scripta elegans), rats (rattus norvegicus) and mice (mus musculus). these species possess small eyes making it difficult to perform the typical schirmer tear test. measurement of the aqueous fraction of the tear was performed usin ...201423464753
microlichus americanus acariasis in saffron finches (sicalis flaveola) with dermatitis and feather loss.over a 5-year period, 13 saffron finches (sicalis flaveola) housed in mixed aviaries at the bronx zoo (bronx, new york) were examined with feather loss and dermatitis, primarily affecting the nape, neck, and dorsum. feather loss, hyperkeratosis, epidermal hyperplasia, and mixed granulocytic and mononuclear inflammation were identified in biopsies from live birds and tissue sections from postmortem specimens. in 10 of 13 cases, sections of arthropod parasites were seen histologically within feath ...201525862713
do apprehended saffron finches know how to survive predators? a careful look at reintroduction candidates.wildlife trafficking is a major factor contributing to the reduction of biological diversity. in brazil, trafficked animals are apprehended by environmental agencies and released in the wild. the maintenance of wild animals in captivity may jeopardize their survival in the wild, for example, by reducing their ability to recognize a predator. saffron finches (sicalis flaveola) are among the most trafficked brazilian birds. twenty-eight apprehended saffron finches were submitted to temperament and ...201626827615
first record of the avian ectoparasite philornis downsi dodge & aitken, 1968 (diptera: muscidae) in argentina.species of philornis meinert, 1890 (diptera, muscidae) are neotropical dipterans that include species with parasitic larvae which feed on nestling birds. to date, all philornis species that have been recorded from argentina have parasitic subcutaneous larvae. here, for the first time for argentina, we report the finding of philornis downsi dodge & aitken, 1968, a fly with a nest-dwelling, semi-haematophagous larva. this record, from the humid chaco ecoregion of argentina in the nest of a saffron ...201121898202
impacts of noise pollution on the agonistic interactions of the saffron finch (sicalis flaveola linnaeus, 1766).impacts of noise pollution are recognized as a source of stress for animals and as a form of environmental degradation. behavioural changes associated with noise, such as reduction of reproductive success, reduction in feeding behaviour, increase in vigilance behaviours and inability to detect environment acoustic signals, are observed. the aim of the present study was to evaluate how noise influences aggressive behaviour of the saffron finch (sicalis flaveola). we conducted tests of territorial ...202032828808
five new species of the feather mite genus trouessartia canestrini from south america (acari: trouessartiidae).five new feather mite species of the genus trouessartia canestrini are described from south american birds: trouessartia latiducta sp. nov. from phylloscartes kronei (tyrannidae), t. basileuteri sp. nov. from basileuterus culicivorus (parulidae), t. sicaliae sp. nov. from sicalis flaveola (emberizidae), t. savanae sp. nov. from tyrannus savana (tyrannidae), and t. picumni from picumnus fulvescens (picidae). the latter species is the first representative of the genus described from a bird of the ...201425284645
genotyping of cryptosporidium spp. from free-living wild birds from brazil.in wild and domestic birds, cryptosporidiosis is often associated with infections by cryptosporidium galli, cryptosporidium baileyi and cryptosporidium meleagridis. in addition to these species, a number of avian cryptosporidium species yet to be fully characterized are commonly found among exotic and wild avian isolates. the present study aimed to detect and identify samples of cryptosporidium spp. from free-living wild birds, in order to contribute to the knowledge of the variability of this p ...201021035268
molecular characterization of cryptosporidium spp. from fecal samples of birds kept in captivity in brazil.the aim of this study was to determine the prevalence of cryptosporidium species and genotypes in birds kept in captivity in brazil. a total of 966 samples from 18 families of birds was collected and stored in 5% potassium dichromate solution at 4 degrees c until processing. oocysts were purified in sheather sugar solution following extraction of genomic dna. molecular analyses were performed using nested-pcr for amplification of fragments of the 18s subunit of rrna gene and of the actin gene. a ...200919683397
[ilheus arbovirus in wild birds (sporophila caerulescens and molothrus bonariensis)].to report the first ilheus arboviruses isolated from wild birds and analyze its public health impact.200111359196
genetic mating system, population genetics and effective size of saffron finches breeding in southern south america.thraupidae (tanagers and allies) show a remarkable array of behaviors, ecologies, morphologies and plumage colors, offering a great opportunity to investigate the evolution of avian mating strategies. we characterize the population genetics and mating system of sicalis flaveola pelzelni, a socially monogamous neotropical songbird with biparental care. we found moderate to high levels of neutral genetic variation, similar across three breeding seasons, consistent with large and stable populations ...201931350624
[natural helminth infection in sicalis flaveola (linnaeus, 1766), by acuaria mayori lent, freitas and proença, 1945 (nematoda: acuarioidea) in brazil].this is the first report of a natural infection in the saffron finch sicalis flaveola (linnaeus, 1766) captured in brazil, with the establishment of a new host record for the acuarioid nematode acuaria mayori lent, freitas and proença, 1945, previously referred in cyanocorax chrysops (vieillot, 1818) from paraguay and sporophila caerulescens caerulescens (vieillot, 1823) and c. cyanomelas (wied, 1821) from brazil and myarchus nuttingi (ridgway, 1883) from costa rica.200716153343
epidemiological aspects of lice (menacanthus species) infections in laying hen flocks from the state of minas gerais, brazil.the epidemiology of chicken lice species such as menacanthus stramineus, m. cornutus and m. pallidulus were studied during an observational, analytical and sectional survey, to determine predisposing factors for their occurrence in laying hen farms in the state of minas gerais, brazil. a total of 431 houses on 43 farms were visited in 2012. m. cornutus, m. stramineus and m. pallidulus occurred in 20.9%, 11.6% and 11.6% of farms, respectively. the frequencies of occurrence of m. cornutus, m. stra ...201626642864
ethno-ornithology and conservation of wild birds in the semi-arid caatinga of northeastern brazil.the utilization of birds as pets has been recognized as one of the principal threats to global avifauna. most of the information about the use and sale of birds as pets has been limited to areas of high biodiversity and whose impacts of anthropic actions have been widely broadcast internationally, for example for the amazon forest and forest remnants of southeast asia. the caatinga predominates in the semi-arid region of brazil, and is one of the semi-arid biomes with the greatest biological div ...201323445769
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