| studies on rift valley fever in some african murids (rodentia: muridae). | brains, spleens and livers of 2214 murids, 27 shrews and 7 dormice, trapped at 7 sites in rhodesia, were tested in 277 pools for the presence of rift valley fever virus. there were no isolations of rift valley fever, but 69 isolations of an unidentified virus were obtained. sixteen out of 867 sera had low-titre haemagglutination-inhibition activity against rift valley fever antigen, but only one out of 1260 sera had neutralizing antibody. the evidence suggests that murids fail to encounter infec ... | 1978 | 632561 |
| 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 ... | 1989 | 2499205 |
| sperm head structure of a murid rodent from southern africa: the red veld rat aethomys chrysophilus. | the morphology of spermatozoa from the red veld rat, aethomys chrysophilus, of southern africa is described; two very different types were found, which came from animals from two separate, as-yet-undescribed, species. in individuals from south africa the sperm head had a somewhat disc-shaped nucleus and a large acrosome with a huge apical segment that, during epididymal transit, changed in form from initially projecting anteriorly to a highly complex structure that was flexed caudad and lay alon ... | 1988 | 3209182 |
| the susceptibility of rodents to schistosome infection, with special reference to schistosoma haematobium. | in this investigation the susceptibility of several species of rodents-praomys (mastomys) natalensis, saccostomus campestris, arvicanthus niloticus, aethomys chrysophilus, tatera brantsi and the white mouse (saimr 200 strain)-to schistosoma haematobium was determined and the pathology studied. from the results it is clear that these rodents are susceptible to infection with schistosoma haematobium. for various reasons, notably adaptability to laboratory conditions, the most suitable as laborator ... | 1966 | 5297005 |
| 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 ... | 1983 | 6345015 |
| recovery of a lassa-related arenavirus in zimbabwe. | immunofluorescent antibodies to "mozambique" virus, a close relative of lassa virus, were found in 11 of 55 mastomys natalensis and 1 of 13 aethomys chrysophilus rodents captured near que que and chiredzi, zimbabwe. six strains of mozambique virus, identified by use of specific monoclonal antibodies to the agent, were recovered from visceral tissues of m. natalensis rodents. all mastomys having virus or antibodies to this agent were of the chromosomal form 2n = 32 (m. natalensis). these data ext ... | 1981 | 7034562 |
| 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 ... | 1996 | 8856764 |
| unusual chromatin structural organization in the sperm head of a murid rodent from southern africa: the red veld rat, aethomys chrysophilus type b. | the structural organization of the chromatin of cauda epididymal spermatozoa of the red veld rat aethomys chrysophilus type b was investigated by fluorescence microscopy after staining with dna specific dyes and by transmission electron microscopy after incubation with triton x100, dithiothreitol, and sds. staining with dna dyes showed variation in intensity of fluorescence of the sperm chromatin, with an anterior spherical region staining far more intensely than the surrounding chromatin. trans ... | 1997 | 9462289 |
| the systematic position of some ethiopian nippostrongylinae (nematoda, trichostrongylina, heligmosomoidea) from the national collection of animal helminths, onderstepoort, south africa. | the taxonomic status of some nippostrongyline nematodes deposited in the national collection of animal helminths, onderstepoort, is revised. heligmonina boomkeri n. sp. is described from aethomys chrysophilus from south africa. the most closely related species by the body measurements and the pattern of the caudal bursa is heligmonina bignonensis diouf, bâ & durette-desset, 1997, a parasite of mastomys erythroleucus from senegal. it differs from the new species mainly in the number of ventral cu ... | 2005 | 15991705 |
| small mammals as hosts of immature ixodid ticks. | two hundred and twenty-five small mammals belonging to 16 species were examined for ticks in free state, mpumalanga and limpopo provinces, south africa, and 18 ixodid tick species, of which two could only be identified to genus level, were recovered. scrub hares, lepus saxatilis, and cape hares, lepus capensis, harboured the largest number of tick species. in free state province namaqua rock mice, aethomys namaquensis, and four-striped grass mice, rhabdomys pumilio, were good hosts of the immatu ... | 2005 | 16300195 |
| habitat-specific shaping of proliferation and neuronal differentiation in adult hippocampal neurogenesis of wild rodents. | daily life of wild mammals is characterized by a multitude of attractive and aversive stimuli. the hippocampus processes complex polymodal information associated with such stimuli and mediates adequate behavioral responses. how newly generated hippocampal neurons in wild animals contribute to hippocampal function is still a subject of debate. here, we test the relationship between adult hippocampal neurogenesis (ahn) and habitat types. to this end, we compare wild muridae species of southern afr ... | 2013 | 23616743 |
| natural hosts of the larvae of nuttalliella sp. (n. namaqua?) (acari: nuttalliellidae). | the first collection of unengorged and fully engorged larvae of nuttalliella sp. (n. namaqua?) from the murid rodents micaelamys namaquensis, aethomys chrysophilus and acomys spinosissimus in limpopo province and from m. namaquensis in the northern cape province, south africa, is documented. a total of nine larvae were collected from two m. namaquensis in the soutpansberg mountain range in the limpopo province during april 2009. during the last week of september 2011, 221 larvae were collected f ... | 2012 | 23327328 |
| chromosomal and molecular characterization of aethomys kaiseri from zambia and aethomys chrysophilus from tanzania (rodentia, muridae). | aethomys is a common and widespread rodent genus in the african savannas and grasslands. however, its systematics and taxonomy are still unclear as no study has covered the entire range. in fact it might not be a monophyletic genus and perhaps should be split into two subgenera, micaelamys and aethomys. in this paper, we present findings based on the cytogenetics and the entire cytochrome b sequence of two species from zambia (a. kaiseri) and tanzania (a. chrysophilus), and we compare them with ... | 2003 | 15061808 |
| identity of haemaphysalis (rhipistoma) muhsamae santos dias, 1954 (acari: ixodidae) and h. (r.) subterra hoogstraal, el kammah & camicas, 1992, parasites of carnivores and rodents in eastern and southern africa. | haemaphysalis (rhipistoma) muhsamae santos dias, 1954 (acari: ixodidae) and h. (r.) subterra hoogstraal, el kammah & camicas, 1992, are redescribed based on males and females. adults of h. muhsamae were mostly collected from various mongooses (carnivora: herpestidae) but also from the striped polecat, ictonyx striatus (perry) (carnivora: mustelidae), serval, leptailurus serval (schreber) (carnivora: felidae), red veld rat, aethomys chrysophilus (de winton) and selinda veld rat, aethomys silinden ... | 2018 | 29974329 |
| two new species of sucking lice (phthiraptera: anoplura: hoplopleuridae and polyplacidae) from grant's rock mouse, micaelamys granti, in south africa. | two new species of sucking lice (phthiraptera: anoplura), hoplopleura granti n. sp. (hoplopleuridae) and polyplax megacephalus n. sp. (polyplacidae), are described from grant's rock mouse, micaelamys granti (wroughton), from northern cape province, south africa. adults of both sexes are illustrated via line drawings and differential interference contrast microscopy images, and are compared with previously described related species that parasitize related hosts: hoplopleura patersoni johnson from ... | 2020 | 32679590 |
| morphometric analysis of the gastrointestinal tract of four african muroid rodent species (rhabdomys dilectus, rhabdomys pumilio, aethomys chrysophilus, and lemniscomys rosalia). | several muroid rodent species are distributed throughout southern africa. some species are reportedly classified as opportunistic omnivorous rodents consuming plant, seed, and insect material. this study aims to provide a detailed morphometric analysis of the gastrointestinal tract (git) of four such omnivorous species, including stomach content analysis. fixed git specimens (n = 5 of each) of rhabdomys dilectus (mesic four-striped grass mouse), rhabdomys pumilio (xeric four-striped grass mouse) ... | 2018 | 30187940 |