Publications

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hesperoctenes fumarius (hemiptera: polycteenidae) infesting molossus rufus (chiroptera: molossidae) in southeastern brazil.we analyzed the prevalence, intensity, and medium density of parasitism of hesperoctenes fumarius infesting molossus rufus in natural (hollow trees) and anthropogenic roosts (attics) in southeastern brazil. the prevalence and intensity of infestations were higher in the hollow trees than in the attic roosts. we also noted a relationship between the amount of space available within the roost and the infestation levels of h. fumarius. one advantage of roosting in larger, often man-made, refuges ma ...200515986628
bat rabies in the north-northwestern regions of the state of são paulo, brazil: 1997-2002.reports on bat rabies in brazil are sporadic and isolated. this study aimed at describing the detection of rabies virus in bats in the state of são paulo.200617173166
[rabies virus in naturally infected bats in the state of são paulo, southeastern brazil].to identify the species of bats involved in maintaining the rabies cycle; to investigate the distribution of the rabies virus in the tissues and organs of bats and the time taken for mortality among inoculated mice.200717515992
assessing genetic variability in bat species of emballonuridae, phyllostomidae, vespertilionidae and molossidae families (chiroptera) by rflp-pcr.a pcr-rflp analysis of the restriction pattern in nuclear (rag2) and mitochondrial (12s/16s) gene sequences of bat species from the molossidae, phyllostomidae, vespertilionidae, and emballonuridae families produced a large number of fragments: 107 for rag2 and 155 for 12s/16s combined in 139 and 402 haplotypes, respectively. the values detected for gene variation were low for both sequences (0.13 for rag2 and 0.15 for 12s/16s) and reflected their conservative feature, reinforced by high values o ...200819048495
embryonic staging system for the black mastiff bat, molossus rufus (molossidae), correlated with structure-function relationships in the adult.an embryonic staging system for molossus rufus (also widely known as molossus ater) was devised using 17 reference specimens obtained during the postimplantation period of pregnancy from wild-caught, captive-bred females. this was done in part by comparing the embryos to a developmental staging system that had been created for another, relatively unrelated bat, carollia perspicillata (family phyllostomidae). particular attention was paid to the development of species-specific features, such as w ...200919089888
the chiggerflea hectopsylla pulex (siphonaptera: tungidae) as an ectoparasite of free-tailed bats (chiroptera: molossidae).in the present study, we investigated the prevalence and intensity of hectopsylla pulex infection in molossus rufus and molossus molossus, the parasite's choice of attachment site, and whether this host-parasite system varies with host size. twenty-four bats were captured by hand from the roof of a house in southeastern brazil. m. rufus exhibited a prevalence of 71.4% and the mean intensity averaged 5 ectoparasites per bat. m. molossus exhibited a prevalence of 90%, and the average mean intensit ...200919722077
new insights into telomeric dna sequence (ttaggg)n location in bat chromosomes.molossidae species, cynomops abrasus (2n = 34, fundamental number, fn = 64), eumops auripendulus (2n = 42, fn = 62), molossus rufus (2n = 48, fn = 64), molossops temminckii (2n = 48, fn = 64), and nyctinomops laticaudatus (2n = 48, fn = 64), and phyllostomidae species, phyllostomus discolor (2n = 32, fn = 60), have karyotypes with different chromosome and fundamental numbers, different localization of constitutive heterochromatin, and different numbers and location of nucleolar organizer regions ...200919731218
colony size, sex ratio and cohabitation in roosts of phyllostomus hastatus (pallas) (chiroptera: phyllostomidae).phyllostomus hastatus bat is species broadly distributed over the neotropical region, which uses as diurnal roosts caves, hollow trees, palm leaves and human buildings. thirteen diurnal roosts of p. hastatus were analysed from 1990 to 2009 in several localities of rio de janeiro state, regarding environment (rural, urban or protected area), type of roost (hollow tree, basement or roof), sex ratio and cohabitation. a nocturnal roost was also analysed. sex ratio of p. hastatus varied considerably ...201021180912
isolation of histoplasma capsulatum from bats in the urban area of são paulo state, brazil.summarythe presence of bats in caves, attics, ceilings, and roofs is important epidemiologically as they can increase the chance of human acquisition of pathogens, including histoplasma capsulatum. brazilian urban areas contain many species of bats, especially insectivorous bats, that are attracted by a wide range of readily available food and shelter. from august 2003 to december 2008, we analysed 2427 bats in the sã£o paulo state region. homogenates of the livers and spleens of the bats were p ...201021205438
endothelial cell hyperproliferation and stratification in uteroplacental blood vessels of the black mastiff bat, molossus rufus.placentation was studied histologically and immunocytochemically in black mastiff bats obtained at frequent intervals throughout pregnancy. these were bred in a captive colony or collected from a reproductively-synchronized wild population. during late pregnancy, the single fetus was largely sustained by a discoidal, hemochorial placenta located at the cranial end of the right uterine horn. this invariant positioning was determined by a vascular tuft that developed there both during early pregna ...201121764447
first record of parakosa flexipes (acari: chirodiscidae) parasitizing a free-tailed bat (chiroptera: molossidae) in brazil.the present study reports the occurrence of parakosa flexipes (pinichpongse) (chirodiscidae) for the first time in brazil, along with its infection sites on molossus rufus e. geoffroy. thirty-eight bats were caught using mist nets that were placed near a house at the mars center for cocoa science in the state of bahia, of which 14 (37%) were parasitized by p. flexipes. parakosa flexipes was observed parasitizing m. rufus on hairs that were evidently longer than others distributed over the bat's ...201323184323
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