| leishmania spp. in didelphis albiventris and micoureus paraguayanus (didelphimorphia: didelphidae) of brazil. | leishmaniasis is kept in nature by the participation of several animal species. this study evaluated the presence of leishmania spp. in skin samples of free-ranging marsupials micoureus paraguayanus (n=95) and didelphis albiventris (n=191), captured in morro do diabo state park and in sections of its surrounding forest, in the region of pontal do paranapanema, são paulo state, brazil. the samples were tested for the presence of kdna of leishmania spp. by polymerase chain reaction (pcr) and by re ... | 2010 | 21144664 |
| composition and characteristics of a diverse didelphid community (mammalia: didelphimorphia) in sub-tropical south america. | few studies have reported didelphid communities of ≥10 species, and all of these have been from within the tropics sensu stricto of south america. herein a community of 12 species of didelphids is described from a sub-tropical site in south-central south america. the reserva natural del bosque mbaracayú, in northeastern paraguay, lies at the western margin of the interior atlantic forest and the southwestern limit of the cerrado, two important south american ecoregions. the rich didelphid commun ... | 2018 | 32905478 |
| marmosa paraguayana (marsupialia: didelphidae) as a new host for gracilioxyuris agilisis (nematoda: oxyuridae) in brazil. | didelphids (didelphimorphia: didelphidae) are a large and well-studied group of neotropical marsupials. although knowledge of the parasitic fauna of didelphids is still scarce, recent work has suggested that neotropical marsupials are often hosts of pinworms. here, we isolated oxyurid nematodes from fecal samples of marmosa paraguayana (marsupialia: didelphidae) and provide a general description and measurements for male and female specimens. we concluded these specimens can be assigned to graci ... | 2012 | 21954857 |
| first evidence of gregarious denning in opossums (didelphimorphia, didelphidae), with notes on their social behaviour. | the didelphidae are considered solitary opossums with few social interactions, usually limited to mating-related or mother-pouch young interactions. anecdotal reports suggest that additional interactions occur, including den sharing by a few individuals, usually siblings. here, we report novel observations that indicate opossums are more social than previously thought. these include nest sharing by males and females of marmosa paraguayana, gracilinanus microtarsus and marmosops incanus prior to ... | 2015 | 26085500 |
| new species and records of mites of the superfamily sarcoptoidea (acariformes: psoroptidia) from mammals in brazil. | sixteen species of the superfamily sarcoptoidea (acariformes: psoroptidia) belonging to 10 genera of the families atopomelidae, listrophoridae, chirodiscidae, and listropsoralgidae are recorded in brazil. among them, three species, prolistrophorus hylaeamys sp. nov. from hylaeamys laticeps (lund, 1840) (cricetidae: sigmodontinae) from minas gerais, lynxacarus serrafreirei sp. nov. from galictis cuja (molina, 1782) (carnivora: mustelidae) from rio de janeiro (listrophoridae), and didelphoecius mi ... | 2016 | 26751869 |
| detection of hantavirus in bats from remaining rain forest in são paulo, brazil. | the significant biodiversity found in brazil is a potential for the emergence of new zoonoses. study in some places of the world suggest of the presence to hantavirus in tissues of bats. researches of hantavirus in wildlife, out rodents, are very scarce in brazil. therefore we decided to investigate in tissues of different species of wild animals captured in the same region where rodents were detected positive for this virus. the present work analyzed ninety-one animals (64 rodents, 19 opossums, ... | 2012 | 23259834 |
| permanent genetic resources: characterization of eight microsatellite loci in the woolly mouse opossum, micoureus paraguayanus, isolated from micoureus demerarae. | eight novel microsatellite markers were isolated from the woolly mouse opossum from the amazon forest in peru, micoureus demerarae, using a partial genomic dna library and an enrichment protocol. these loci were polymorphic in m. demerarae and micoureus paraguayanus populations from the atlantic forest in brazil with the number of alleles ranging from two to 23. those eight loci plus another five already described for m. paraguayanus will allow for the evaluation of genetic diversity of populati ... | 2008 | 21585787 |
| siphonaptera of small rodents and marsupials in the pedra branca state park, state of rio de janeiro, brazil. | in an region of atlantic rainforest corresponding to the geopolitical area of the pedra branca state park, rio de janeiro, southeastern brazil, 160 small mammals were captured, of which 64 rodents and 96 marsupials from october 2005 to october 2007. there were collected in these hosts six flea species from three families (ctenophthalmidae, rhopalopsyllidae and pulicidae), totalizing 162 specimens. adoratopsylla (tritopsylla) intermedia intermedia was the most common species found, followed by po ... | 2010 | 20385060 |
| highly conserved d-loop sequences in woolly mouse opossums marmosa (micoureus). | this study reports the occurrence of highly conserved d-loop sequences in the mitochondrial genome of the woolly mouse opossum genus marmosa subgenus micoureus (mammalia, didelphimorphia, didelphidae). sixty-six sequences of marmosa (micoureus) demerarae, marmosa (micoureus) constantiae, and marmosa (micoureus) paraguayanus were amplified using universal d-loop primers and virtually no genetic differences were detected within and among species. these sequences matched the control region of the m ... | 2012 | 22409752 |