| small mammal populations of an agroecosystem in the atlantic forest domain, southeastern brazil. | this study reports 2 years of the population dynamics and reproduction of a small mammal community using the removal method. the study was conducted in a rural area of the atlantic forest, in sumidouro, rio de janeiro state, brazil. the population sizes, age structure and reproduction were studied for the four most common species in the study area. the overall diversity was 1.67 and ranged between 0.8 to 1.67. the species richness was 13 considering the whole study. the most abundant species wer ... | 2007 | 17505767 |
| sarcocystis lindsayi-like (apicomplexa: sarcocystinae) of the opossum (didelphis aurita) from southeastern brazil. | sporocysts of sarcocystis were obtained from intestinal scrapings of three out of five opossums (didelphis aurita) trapped in the southeastern region, of the state of rio de janeiro, brazil. fifteen caged budgerigars (melopsittacus undulatus) received, orally, twenty-six sporocysts in 500 ml pbs, but only five belonging to one of the groups developed clinical signs, that consisted of anorexia, lethargy, ruffled feathers and dyspnoea, and parasitism in tissues. two of the five budgerigars died on ... | 2008 | 20059875 |
| identification of opossums didelphis aurita (wied-neuweid, 1826) as a definitive host of sarcocystis falcatula-like sporocysts. | this study was conducted to identify the sarcocystis species that infect the opossum didelphis aurita in order to determine which sporocysts they are excreating in to the environment and help determine the role of d. aurita in the epidemiology of sarcocystis. sporocysts were obtained from intestinal tracts of 8 of 13 d. aurita trapped in rio de janeiro state, brazil, and were orally inoculated into melopsittacus undulatus and balb/c nude mus musculus. portions of organs and muscles were processe ... | 2018 | 29192336 |
| new aspidoderidae species parasite of didelphis aurita (mammalia: didelphidae): a light and scanning electron microscopy approach. | nematodes of the family aspidoderidae (nematoda: heterakoidea) skrjabin and schikobalova, 1947, are widely distributed in the americas. the family aspidoderidae includes the subfamilies aspidoderinae skrjabin and schikobalova, 1947, and lauroiinae skrjabin and schikobalova, 1951. these two subfamilies are delineated by the presence or absence of cephalic cordons at the anterior region. the nematodes in the subfamily aspidoderinae, which includes the genus aspidoderarailliet and henry, 1912, are ... | 2014 | 24129095 |
| didelphis aurita (marsupialia: didelphidae): a new host for sarcocystis lindsayi (apicomplexa: sarcocystidae). | nine opossums, didelphis aurita , were captured in the city of seropédica, state of rio de janeiro, brazil and examined for species of sarcocystis. sporocysts were observed in the mucosal scrapings of the small intestine from 3 opossums. five budgerigars, melopsittacus undulatus , were infected with sporocysts from each of these infected opossums and 5 budgerigars were used as controls. of the 15 sporocyst-treated budgerigars, 5 birds that received sporocysts from 1 of the infected opossums deve ... | 2012 | 22571294 |
| trypanosoma janseni n. sp. (trypanosomatida: trypanosomatidae) isolated from didelphis aurita (mammalia: didelphidae) in the atlantic rainforest of rio de janeiro, brazil: integrative taxonomy and phylogeography within the trypanosoma cruzi clade. | didelphis spp. are a south american marsupial species that are among the most ancient hosts for the trypanosoma spp. | 2018 | 29211107 |