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viremia and antibody response of small african and laboratory animals to crimean-congo hemorrhagic fever virus infection.eleven species of small african wild mammals, laboratory rabbits, guinea pigs, and syrian hamsters were infected with crimean-congo hemorrhagic fever (cchf) virus. low-titered viremia followed by development of antibody was observed in scrub hares (lepus saxatilis), cape ground squirrels (xerus inauris), red veld rats (aethomys chrysophilus), white tailed rats (mystromys albicaudatus), bushveld gerbils (tatera leucogaster), striped mice (rhabdomys pumilio), and guinea pigs. the maximum viremic t ...19892499205
seasonal abundance of plague vector xenopsylla brasiliensis from rodents captured in three habitat types of periurban suburbs of harare, zimbabwe.abstract the study was aimed at determining the seasonal abundance of xenopsylla brasiliensis, an important vector of plague in zimbabwe, from rodent hosts captured in selected habitat types of two periurban suburbs of harare, zimbabwe. the removal-trapping method was used to capture the rodents, from which fleas were collected and identified. percentage incidence index (pii) and specific flea index (sfi) were calculated for x. brasiliensis in relation to rodent species host. mastomys natalensis ...201021142965
choline acetyltransferase immunoreactive cortical interneurons do not occur in all rodents: a study of the phylogenetic occurrence of this neural characteristic.the present study was designed to provide results aimed at testing whether the interneurons with choline acetyltransferase immunoreactivity (chat), probably representing gaba interneurons, found in the cerebral cortex of the rat represent a common feature of the order rodentia. initially we verified the presence of chat immunoreactive bipolar cell bodies, axons and terminal-like fibres in pigmented (long-evans) and non-pigmented (sprague-dawley) strains of rattus norvegicus, confirming that the ...200617049807
hosts of the immature stages of the rhinoceros tick, dermacentor rhinocerinus (acari, ixodidae).the collection of the immature stages of dermacentor rhinocerinus from host animals is described for the first time. these are the bushveld gerbil (tatera leucogaster, from which larvae and nymphs were collected, the red veld rat (aethomys crysophilus), from which a larva was collected, and the natal multimammate rat (mastomys natalensis), from which a nymph was collected. the rodents were examined in a nature reserve in which there are white rhinoceroses (ceratotherium simum).200111403434
innocuity studies of sag-2 oral rabies vaccine in various zimbabwean wild non-target species.the sag-2 modified live rabies vaccine was tested for innocuity when administered by the oral route in several potential wild non-target bait-consuming species, as follows: ten chacma baboons (papio ursinus), six african civets (civettictis civetta), six slender mongooses (galerella sanguinea), six honey badgers (mellivora capensis), six large-spotted genets (genetta tigrina), 39 multi-mammate mice (mastomys natalensis), 26 bushveld gerbils (tatera leucogaster) and six pied crows (corvus albus). ...19979261938
the comparative host status of red veld rats (aethomys chrysophilus) and bushveld gerbils (tatera leucogaster) for epifaunal arthropods in the southern kruger national park, south africa.red veld rats (aethomys chrysophilus) and bushveld gerbils (tatera leucogaster) were trapped at monthly intervals, when possible, over a 2-year period, in the southern kruger national park, mpumalanga province. forty-six specimens of each species were caught, euthenased and microscopically examined for fleas, lice, ticks and mites. clear differences existed between the two rodent hosts in infestation intensity and also parasite species. the flea, xenopsylla brasiliensis, commonly and exclusively ...19968856764
ecology of plague in africa: response of indigenous wild rodents to experimental plague infection.the mastomys natalensis species complex, subdivided into genetically distinct species having diploid chromosome numbers 2n = 32 and 2n = 36, is a reservoir for several zoonoses including lassa fever and plague. this report describes a study to determine whether these sibling species and three other rodent species have different potential as reservoirs for plague. it was found that m. natalensis (2n = 32) was significantly more resistant to experimental plague infection (50% survived inoculation ...19836345015
experimental plague infection in south african wild rodents.susceptibility studies were undertaken to determine the response of some south african wild rodent species to experimental plague (yersinia pestis) infection. a degree of plague resistance was found in three gerbil species captured in the plague enzootic region of the northern cape province, these being the namaqua gerbil, desmodillus auricularis, (ld50 1 x 10(6) organisms), the bushveld gerbil, tatera leucogaster, (ld50 9.1 x 10(5)) and the highveld gerbil, t. brantsii (ld50 4 x 10(2)). animals ...19863701038
seasonal abundance and epidemiological indices of potential plague vectors dinopsyllus lypusus (siphonaptera: hystrichopsyllidae) and ctenophthalmus calceatus (siphonaptera: ctenophthalmidae) on rodents captured from three habitat types of hatcliffe and dzivarasekwa suburbs of harare, zimbabwe.the seasonal abundance of dinopsyllus lypusus jordan and rothschild and ctenophthalmus calceatus waterson (potential vectors of plague in southern africa) were studied on rodent hosts captured in selected habitat types of two periurban suburbs of harare, zimbabwe. removal trapping was used to capture the rodents, from which fleas were collected and identified. prevalence (proportion of animals infested) and specific flea index (sfi = number of fleas per animal) were calculated for each species o ...201223270175
quantifying disturbance resistance in an ecologically dominant species: a robust design analysis.disturbance is now recognized as a key ecosystem process but few studies have examined its indirect effects on individuals in a population or its relationship to ecological dominance in a community. using an ecologically dominant small mammal population in experimentally burned habitat as a model, i empirically tested the effect of disturbance on survival, abundance and fecundity and investigated whether recently burned habitat is a population sink. i also examined the effect of fire on communit ...201121318340
multilocus phylogeography of a widespread savanna-woodland-adapted rodent reveals the influence of pleistocene geomorphology and climate change in africa's zambezi region.understanding historical influences of climate and physiographic barriers in shaping patterns of biodiversity remains limited for many regions of the world. for mammals of continental africa, phylogeographic studies, particularly for west african lineages, implicate both geographic barriers and climate oscillations in shaping small mammal diversity. in contrast, studies for southern african species have revealed conflicting phylogenetic patterns for how mammalian lineages respond to both climate ...201526340076
demography, reproductive biology and diet of the bushveld gerbil tatera leucogaster (rodentia: gerbillinae) in the lake rukwa valley, south-western tanzania.seasonal abundance, reproductive biology and feeding ecology of the bushveld gerbil tatera leucogaster (peters, 1852) were investigated in small-scale maize field-fallow land mosaics in south-western tanzania. the gerbils were collected over a 2-year period using sherman live and victor hold-fast snap traps in permanent 4.5-ha grids. a total of 664 individuals were captured over 13 650 trap nights, giving an overall trap success rate of 4.9%. trap success varied between seasons with and without ...200821396049
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