| parasites of domestic and wild animals in south africa. xxix. ixodid ticks on hares in the cape province and on hares and red rock rabbits in the orange free state. | one hundred and seventeen scrub hares, lepus saxatilis, were examined for ixodid ticks in various regions of the cape province. they were infested with 18 tick species and the seasonal abundances of the immature stages of amblyomma hebraeum, amblyomma marmoreum, hyalomma marginatum rufipes, rhipicephalus appendiculatus and rhipicephalus glabroscutatum and all stages of rhipicephalus oculatus and the adults of a rhipicephalus sp. (near r. oculatus) were determined. seventy-two scrub hares on 3 fa ... | 1991 | 1780126 |
| viraemic transmission of crimean-congo haemorrhagic fever virus to ticks. | in order to determine the way in which vertebrates infected with crimean-congo haemorrhagic fever (cchf) virus and potential ixodid tick vectors interact in nature, immature and adult ticks of several species were fed on viraemic mammals and then assayed for virus content at varying times after feeding. cchf virus was not isolated from ticks of six species tested after feeding as adults and immature forms on sheep with viraemia of 10(2.5-3.2) ld 50/ml, nor from larval ticks fed on guinea-pigs an ... | 1991 | 1902186 |
| parasites of domestic and wild animals in south africa. xxvi. the mosaic of ixodid tick infestations on birds and mammals in the mountain zebra national park. | sixteen species of ixodid ticks were collected over varying periods of time from 6 species of ground-frequenting birds and 15 species of small and large mammals in the mountain zebra national park, karoo, cape province. margaropus winthemi followed by rhipicephalus glabroscutatum and rhipicephalus evertsi evertsi were the most abundant species. the host preferences of 14 tick species and the seasonal abundances of 13 species were determined. small numbers of immature stages of only a few tick sp ... | 1991 | 1923374 |
| 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 |
| some avian and mammalian hosts of amblyomma hebraeum and amblyomma marmoreum (acari: ixodidae). | large numbers of birds, wild mammals and domestic stock from a variety of localities within the republic of south africa were examined for infestation with the ixodid ticks amblyomma hebraeum and amblyomma marmoreum. every warthog (phacochoerus aethiopicus), burchell's zebra (equus burchelli), impala (aepyceros melampus) and kudu (tragelaphus strepsiceros) from the kruger national park in the north-eastern transvaal lowveld was infested with a. hebraeum. in the eastern cape province every helmet ... | 1987 | 3329327 |
| an undescribed rhipicephalus species associated with field paralysis of angora goats. | paralysis of angora goat kids caused by adult ticks, which most probably belong to an undescribed species of the rhipicephalus pravus group, is described. confirmed cases of paralysis occurred in the south-western orange free state between the second half of september and the first half of november as well as during the first half of february. the mean female tick burdens (mean = 21.4) of paralysed angora kids were significantly higher than those of healthy kids (mean = 4.4). the predilection at ... | 1988 | 3361560 |
| the effect of dipping on parasitic and free-living populations of amblyomma hebraeum on a farm and on an adjacent nature reserve. | domestic stock on a farm 30 km north of grahamstown were treated with an acaricide at regular intervals over a period of several years. this resulted in a marked reduction in all stages of development of amblyomma hebraeum on kudu (tragelaphus strepsiceros), scrub hares (lepus saxatilis) and helmeted guinea fowl (numida meleagris) which were on the farm compared with the burdens of similar animals in an adjacent nature reserve. the populations of free-living larvae of a. hebraeum on this farm an ... | 1987 | 3448583 |
| a comparison of the tick burdens of wild animals in a nature reserve and on an adjacent farm where tick control is practised. | acaricidal treatment of cattle, sheep and goats on a farm in valley bushveld in the grahamstown district resulted in a reduction in the numbers of certain tick species on kudu (tragelaphus strepsiceros), scrub hares (lepus saxatilis) and crowned guinea fowl (numida meleagris) on the same farm. the tick species most severely affected was amblyomma hebraeum, while haemaphysalis silacea, hyalomma marginatum rufipes and rhipicephalus appendiculatus were affected to a lesser extent. rhipicephalus gla ... | 1986 | 3572954 |
| the scrub hare, a reliable indicator of the presence of hyalomma ticks in the cape province. | the host preferences of immature and adult hyalomma marginatum rufipes, hyalomma marginatum turanicum and hyalomma truncatum were studied at various localities in the cape province. the immature stages of all 3 ticks preferred scrub hares (lepus saxatilis) as hosts and were recovered from these animals even when few adult ticks were present on large herbivores in the locality. ground-frequenting birds were also infested, but only with immature h. marginatum rufipes and h. marginatum turanicum. s ... | 1987 | 3612673 |
| parasites of domestic and wild animals in south africa. xxi. arthropod parasites of vaal ribbok, bontebok and scrub hares in the western cape province. | vaal ribbok (pelea capreolus), bontebok (damaliscus dorcas dorcas) and scrub hares (lepus saxatilis) were slaughtered in the bontebok national park at regular intervals and examined for arthropod parasites. twelve species of ixodid ticks were recovered; the antelope each harboured 9 species and the hares 11. rhipicephalus nitens was the most prevalent and most abundant tick. the vaal ribbok also harboured large numbers of ixodes pilosus and the bontebok fairly large numbers of rhipicephalus glab ... | 1986 | 3796942 |
| evolution of chromosomal variation in cottontails, genus sylvilagus (mammalia: lagomorpha). ii. sylvilagus audubonii, s. idahoensis, s. nuttallii, and s. palustris. | chromosomes from cultured fibroblasts of four cottontail species (sylvilagus audubonii, 2n = 42; s. idahoensis, 2n = 44; s. nuttallii, 2n = 42; and s. palustris, 2n = 38) were analyzed using g- and c-banding techniques. the evolutionary restructuring of the genomes of these species was traced by comparing their banded chromosomes to those of lepus saxatilis, a species of hare in which the leporid ancestral karyotype is thought to have been conserved. chromosomal evolution appears to have proceed ... | 1984 | 6510022 |
| comparative chromosome studies in the family leporidae (lagomorpha, mammalia). | chromosome banding patterns of lepus saxatilis, 2n = 48, and pronolagus rupestris, 2n = 42, are presented. comparison of g-banded karyotypes allows the identification of similar elements in both species. the karyotype of p. rupestris differs from that of l. saxatilis by the presence of three fusions in the former. comparative studies with the fusion products of oryctolagus cuniculus indicate that fusion and not fission is the major factor in chromosomal evolution of these leporids. the chromosom ... | 1980 | 7449437 |
| parasites of domestic and wild animals in south africa. xxxii. ixodid ticks on scrub hares in the transvaal. | a total of 264 scrub hares (lepus saxatilis) were examined for ixodid ticks at various localities in the kruger national park, eastern transvaal lowveld. thirteen tick species were recovered from these hares. the seasonal abundances of the immature stages of amblyomma hebraeum, amblyomma marmoreum, hyalomma truncatum, rhipicephalus appendiculatus, rhipicephalus evertsi evertsi, rhipicephalus simus and rhipicephalus zambeziensis and all stages of a rhipicephalus sp. (near r. pravus) were determin ... | 1993 | 7970571 |
| fleas and lice on scrub hares (lepus saxatilis) in south africa. | a total of 380 scrub hares (lepus saxatilis) from 5 localities, ranging from the north-eastern transvaal to the eastern and the south-western cape province of south africa, were examined for fleas and lice. ctenocephalides felis damarensis was almost exclusively responsible for the flea infestations on hares at 4 of the 5 sites. at 4 localities the prevalence and abundance of this flea reached peaks between august and october and declined thereafter to their lowest levels between february and ap ... | 1993 | 8332329 |
| parasites of domestic and wild animals in south africa. xxxiii. ixodid ticks on scrub hares in the north-eastern regions of northern and eastern transvaal and of kwazulu-natal. | ixodid ticks were collected from scrub hares (lepus saxatilis) at three localities. nine tick species were recovered from 24 hares examined at pafuri, kruger national park, northern transvaal. the most abundant and prevalent species were hyalomma truncatum, rhipicephalus kochi and a rhipicephalus species (near r. pravus). twelve tick species were collected from 120 scrub hares examined around skukuza, kruger national park, eastern transvaal. the immature stages of hyalomma truncatum were most ab ... | 1995 | 8600436 |
| fleas, lice and mites on scrub hares (lepus saxatilis) in northern and eastern transvaal and in kwazulu-natal, south africa. | fleas, lice and mites were collected from 24 and 120 scrub hares at pafuri and skukuza, northern and eastern transvaal, respectively, in the kruger national park, and from 34 scrub hares in the hluhluwe region, north-eastern kwazulu-natal. ctenocephalides felis damarensis, the only flea recovered, reached peak burdens on the hares at each locality during late winter or spring. juvenile hares harboured significantly fewer fleas than did adult animals. the lice haemodipsus lyriocephalus and haemod ... | 1995 | 8600437 |
| parasites of south african wildlife. xv. helminths of scrub hares, lepus saxatilis in the kruger national park. | a total of 145 scrub hares from three localities in the kruger national park were examined for helminths: 124 at skukuza, 15 at shingwedzi, and three each at pretoriuskop and pafuri. trichostrongylus deflexus was the most prevalent and most abundant nematode, and was collected from hares from all four localities. trichostrongylus falculatus was present in three localities. trichostrongylus thomasi and dermatoxys vlakhaasi occurred only at skukuza in 50 and 23%, respectively, of the hares examine ... | 1997 | 9551480 |
| first report of a parasitic mite, leptotrombidium (hypotrombidium) subquadratum (lawerence) (acari: trombiculidae: trombiculinae), from dogs and children in the bloemfontein area, south africa. | leptotrombidium subqunadratum larvae were collected for the first time in 1994 from dogs in bloemfontein. the larvae have been collected annually, during the summer months, over a period of 6-7 years. previously the only known hosts were scrub hare (lepus saxatilis) (locality unknown) and short-snouted elephant shrew (elephantulus brachyrhynchus) (kruger national park). these mites cause severe itching and dermatitis in humans and dogs. | 2001 | 11513258 |
| ixodid ticks of angora and boer goats, grysbok, common duikers, kudus and scrub hares in valley bushveld in the eastern cape province, south africa. | at monthly intervals from february 1983 to january 1984 two angora goats, two boer goats, one grysbok, raphicerus melanotis, one common duiker, sylvicapra grimmia, one greater kudu, tragelaphus strepsiceros, and four scrub hares, lepus saxatilis, were killed on a farm in valley bushveld in the eastern cape province, south africa and examined for ticks. seven ixodid tick species were collected, of which rhipicephalus glabroscutatum followed by amblyomma hebraeum and rhipicephalus oculatus were th ... | 2003 | 12967172 |
| 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 |
| the genus hyalomma koch, 1844. i. reinstatement of hyalomma (euhyalomma) glabrum delpy, 1949 (acari, ixodidae) as a valid species with a redescription of the adults, the first description of its immature stages and notes on its biology. | for nearly 50 years the ixodid tick hyalomma marginatum turanicum, reputedly introduced into south africa on imported persian sheep, has been considered identical to the asian hyalomma (euhyalomma) marginatum turanicum pomerantzev, 1946. comparisons of this tick with the asian h. (e.) m. turanicum and other subspecies of hyalomma (euhyalomma) marginatum, however, reveal that it is an old taxon, namely hyalomma rufipes glabrum delpy, 1949. it is hereby reinstated as hyalomma (euhyalomma) glabrum, ... | 2006 | 16715874 |
| hosts, seasonality and geographic distribution of the south african tortoise tick, amblyomma marmoreum. | the tortoise tick amblyomma marmoreum was collected from large numbers of reptiles and other animals during the course of numerous surveys conducted in south africa. a total of 1229 ticks, of which 550 were adults, were recovered from 309 reptiles belonging to 13 species, with leopard tortoises, geochelone pardalis being the most heavily infested. the 269 birds sampled harboured 4901 larvae, 217 nymphs and no adult ticks, and the prevalence of infestation was greatest on helmeted guineafowls, nu ... | 2006 | 16715875 |
| the conflict between cheetahs and humans on namibian farmland elucidated by stable isotope diet analysis. | large areas of namibia are covered by farmland, which is also used by game and predator species. because it can cause conflicts with farmers when predators, such as cheetahs (acinonyx jubatus), hunt livestock, we assessed whether livestock constitutes a significant part of the cheetah diet by analysing the stable isotope composition of blood and tissue samples of cheetahs and their potential prey species. according to isotopic similarities, we defined three isotopic categories of potential prey: ... | 2014 | 25162403 |
| variation of partial transferrin sequences and phylogenetic relationships among hares (lepus capensis, lagomorpha) from tunisia. | north african hares are currently included in cape hares, lepus capensis sensu lato, a taxon that may be considered a superspecies or a complex of closely related species. the existing molecular data, however, are not unequivocal, with mtdna control region sequences suggesting a separate species status and nuclear loci (allozymes, microsatellites) revealing conspecificity of l. capensis and l. europaeus. here, we study sequence variation in the intron 6 (468 bp) of the transferrin nuclear gene, ... | 2016 | 27485731 |
| evolution of chromosomal variation in cottontails, genus sylvilagus (mammalia: lagomorpha): s. aquaticus, s. floridanus, and s. transitionalis. | the banding patterns of mitotic chromosome from three cottontail species, sylvilagus aquaticus (2n = 38), s. floridanus (2n = 42), and s. transitionalis (2n = 46), are presented and compared with those of the proposed leporid ancestral karyotype, the latter being reflected in a species of hare, lepus saxatilis (2n = 48). the differences in the diploid numbers of the cottontail species are primarily due to the fixation of robertsonian fusions which have occurred during the evolution of their resp ... | 1983 | 6861527 |