| [seasonal evaluation of mammal species richness and abundance in the "mário viana" municipal reserve, mato grosso, brasil]. | we evaluated seasonal species presence and richness, and abundance of medium and large sized mammalian terrestrial fauna in the "mário viana" municipal biological reserve, nova xavantina, mato grosso, brazil. during 2001, two monthly visits were made to an established transect, 2,820 m in length. records of 22 mammal species were obtained and individual footprint sequences quantified for seasonal calculation of species richness and relative abundance index (x footprints/km traveled). all 22 spec ... | 2006 | 18491629 |
| hunting and use of terrestrial fauna used by caiçaras from the atlantic forest coast (brazil). | the brazilian atlantic forest is considered one of the hotspots for conservation, comprising remnants of rain forest along the eastern brazilian coast. its native inhabitants in the southeastern coast include the caiçaras (descendants from amerindians and european colonizers), with a deep knowledge on the natural resources used for their livelihood. | 2009 | 19930595 |
| systematic, cross-cortex variation in neuron numbers in rodents and primates. | uniformity, local variability, and systematic variation in neuron numbers per unit of cortical surface area across species and cortical areas have been claimed to characterize the isocortex. resolving these claims has been difficult, because species, techniques, and cortical areas vary across studies. we present a stereological assessment of neuron numbers in layers ii-iv and v-vi per unit of cortical surface area across the isocortex in rodents (hamster, mesocricetus auratus; agouti, dasyprocta ... | 2015 | 23960207 |
| on the mammals collected by friedrich sellow in brazil and uruguay (1814-1831), with special reference to the types and their provenance. | from 1814 to 1831, the prussian naturalist friedrich sellow collected 263 mammals in brazil and uruguay. upon receiving the specimens, the curator of the berlin zoological museum, martin lichtenstein, removed the original labels and replaced with ones containing more generalized locations. as a consequence, several type specimens have now dubious type localities. we examined these types as well as geographically restricted mammals collected by sellow. in some cases, there are inconsistencies bet ... | 2017 | 28187657 |
| echinococcus oligarthrus in the subtropical region of argentina: first integration of morphological and molecular analyses determines two distinct populations. | echinococcosis is a parasitic zoonosis that is considered as a neglected disease by the world health organization. the species echinococcus oligarthrus is one of the causative agents of neotropical echinococcosis, which is a poorly understood disease that requires a complex medical examination, may threaten human life, and is frequently associated with a low socioeconomic status. morphological and genetic diversity in e. oligarthrus remains unknown. the aim of this work is to identify and charac ... | 2017 | 28433410 |
| the eye of the azara's agouti ( dasyprocta azarae): morphological observations and selected ophthalmic diagnostic tests. | the purpose of this study was to carry out a descriptive investigation of the azara's agouti ( dasyprocta azarae) eye and to establish reference values of select ophthalmic diagnostic tests and physiologic parameters. a total of 19 healthy agoutis were used. select ophthalmic diagnostic tests were performed, including schirmer tear test type i (stti), analysis of the conjunctival bacterial microflora, corneal esthesiometry, and tonometry. b-mode ultrasonic biometry, fundus photography, optical c ... | 2017 | 29297794 |
| isolation and genotyping of toxoplasma gondii in the midwestern brazil revealed high genetic diversity and new genotypes. | we aimed to describe the genetic diversity of toxoplasma gondii strains isolated from domestic animals, wildlife and humans in the midwestern brazil. for this purpose, fragments of tissue samples (heart, brain and lung) from 35 dogs, four cats, 105 wildlife, and amniotic fluids from eight pregnant women were collected and submitted to mouse bioassay test. in a total, 22 isolates from nine dogs, one cat, ten wild animals and two women were obtained. the dna was extracted from t. gondii isolates ( ... | 2020 | 32926845 |
| transthoracic echocardiography in nonsedated, free-ranging healthy agoutis (dasyprocta azarae). | most of the agouti species are kept in captivity, including the species dasyprocta azarae. these animals are of zootechnical interest and, in addition, they can potentially be used as experimentation models because of their physical characteristics and possibility of manipulation. therefore, the purpose of this study was to investigate the feasibility of the echocardiographic exam in nonsedated agoutis and to determine the normal reference ranges for the standard transthoracic echocardiographic ... | 2020 | 31926522 |
| serosurvey of toxoplasma gondii and leptospira spp. in free-range agoutis (dasyprocta azarae) from an urban area of southern brazil. | thirty-six free-ranging agoutis (dasyprocta azarae) from an urban area of the municipality of curitiba, a southern region of brazil, were tested for antibodies against toxoplasma gondii and leptospira spp. antibodies were present in 25% and 6% agoutis, respectively. no statistical differences were observed based on sex, age, and body mass of the agoutis. high t. gondii seropositivity indicated environmental contamination, whereas lower seropositivity of leptospira spp. suggested low environmenta ... | 2020 | 31743067 |
| revisiting the phylogenetic history of helminths through genomics, the case of the new echinococcus oligarthrus genome. | the first parasitic helminth genome sequence was published in 2007; since then, only ∼200 genomes have become available, most of them being draft assemblies. nevertheless, despite the medical and economical global impact of helminthic infections, parasite genomes in public databases are underrepresented. recently, through an integrative approach involving morphological, genetic, and ecological aspects, we have demonstrated that the complete life cycle of echinococcus oligarthrus (cestoda: taenii ... | 2019 | 31440275 |
| the reservoir system for trypanosoma (kinetoplastida, trypanosomatidae) species in large neotropical wetland. | distinct species of trypanosoma have been documented sharing the same hosts in different environments in intricate transmission networks. knowing this, this study investigated the role of different hosts in the transmission cycles of trypanosoma species in the pantanal biome. the mammals were sampled from november 2015 to october 2016. we sampled a total of 272 wild mammals from 27 species belonging to six orders and 15 families, and three species of triatomines (n = 7). we found high parasitemi ... | 2019 | 31356788 |
| molecular detection of anaplasmataceae agents in dasyprocta azarae in northeastern brazil. | recently, the importance of wild-living rodents for maintenance of pathogens of the family anaplasmataceae in the environment was investigated. these mammals play a role as reservoirs for these pathogens and act as hosts for the immature stages of tick vectors. the aim of the present study was to investigate the prevalence of ehrlichia sp. and anaplasma sp. in 24 specimens of azara's agouti (dasyprocta azarae) that had been trapped in the itapiracó environmental reserve, in são luís, maranhão, n ... | 2018 | 29641788 |