The recorded Distribution of <i>Ornithodoros moubata</i> (Murray) (Acarina)

Leeson, H. S.

doi:10.1017/s000748530004058x

Cited by 14 publications

(14 citation statements)

References 8 publications

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“…The distribution of 0. moubata in the Protectorate and the neighbouring South West Africa is still confused. The records mentioned by Leeson (1952), and the map of distribution drawn by him, are based partly on misidentifications, owing to the confusion of this species with 0. savignyi (Aud.) and Argas persicus, and are therefore worthless.…”

Section: Distributionmentioning

confidence: 99%

A Preliminary Survey of the Distribution and Host-specificity of Ticks (Ixodoidea) in the Bechuanaland Protectorate

Zumpt

1958

Bull. Entomol. Res.

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SummaryTwenty one species of ticks (Ixodoidea), one of which is represented by two subspecies, are recorded from the Bechuanaland Protectorate. Localities, dates and the hosts are given; general distribution and medical and veterinary importance are discussed under each species.The shrub desert formations of the Kalahari are shown to be unsuitable habitats for most species of ticks; only a few are able to survive under severe desert conditions.In medical respects, Ornithodoros moubata (Murr.), as the transmitter of relapsing fever, is the most important tick in the Protectorate. It has been found in the eastern part up to Francistown and in Ngamiland and near Tsane; its further distribution has not yet been established. Larvae and nymphs of various members of the Ixodidae infesting domestic and wild rodents are potential transmitters of tick-bite fever.Cattle in the eastern area and in Ngamiland were found to be infested by ten species, of which Amblyomma hebraeum Koch, Hyalomma rufipes Koch, H. truncatum Koch, Rhipicephalus appendiculatus Neumann, R. evertsi evertsi Neumann, R. simus simus Koch and Boophilus decoloratus (Koch) are the most important ones, both in respect of the numbers infesting cattle, and of their significance as transmitters of redwater, anaplasmosis, heartwater and sweating sickness.Sheep, goats, pigs and horses were found to be infested by nine of the species listed above as occurring on cattle.Dogs were mainly parasitised by Rhipicephalus simus which outnumbered by far the two recognised dog-ticks, Rhipicephalus sanguineus sanguineus (Latr.) and Haemaphysalis leachii leachii (Aud.).Wild Bovids and zebra are infested by species which also live on domestic ruminants, but the percentage of the different species present varies according to the host and to the locality.Wild carnivores are infested by the same species as are dogs, but in this group, too, there are differences in the relative abundance of the various tick species.Small birds are hosts of immature stages of Amblyomma and Hyalomma species. Their importance as carriers for the dispersal of cattle-infesting ticks is noticed.

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Section: Distributionmentioning

confidence: 99%

A Preliminary Survey of the Distribution and Host-specificity of Ticks (Ixodoidea) in the Bechuanaland Protectorate

Zumpt

1958

Bull. Entomol. Res.

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“…have long been known as vectors of human relapsing fever, but their relation to ASF has only recently been determined. Ticks of this genus have often been found in association with warthog, the only known wild animal reservoir of ASF virus (ASFV) in Africa (Montgomery, 1921), and have a wide distribution (Merriman, 1911 ;van der Merwe, 1968); in fact, O. moubata has been recorded from sea level to 9800 ft (Leeson, 1952). Experimental transmission of ASFV by Ornithodoros was first achieved by Heuschele & Coggins (1965), and the full significance of O. m. porcinus in relation to ASF is now known (Plowright et al, 1969a,b, l970a,b).…”

Section: Introductionmentioning

confidence: 99%

Distribution and ecology of Ornithodoros moubata porcinus Walton (Acarina) in animal burrows in East Africa

Peirce¹

1974

Bull. Entomol. Res.

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In a survey of animal burrows in nine East African game areas or ranches 112 621 specimens of Ornithodoros moubata porcinus Walton, vector of African Swine Fever Virus (ASFV), were collected from 172 burrows (out of 442 examined) in six areas. Burrows were usually located in open ground, in patches of scrub thicket and frequently in termite mounds; often the burrows had been excavated originally by antbear. Ticks were obtained by means of a lure, by chipping samples from the burrow walls and by taking soil samples from the burrow floors. Tick populations ranged from a few individuals to 250000 per burrow, second-and third-stage nymphae accounting for over 70% of the total population. Generally, ticks were found near the entrances of burrows on the floor, or on the roofs if the burrows had been unoccupied for some time, the latter position appearing to be a hunger response. Factors favouring large tick populations were neutral soils, high relative humidity, optimal temperature to be found at 3000-5000 ft above sea level, vegetation surrounding the burrow and the presence of burrow-inhabiting animals. Above 5000 ft O. m. porcinus was less common, and above 6150 ft none was found. Blood-meal identifications have shown warthog to be the primary host; other hosts included antbear, porcupine and hyaena. In areas with a particularly favourable environment the ticks can remain quiescent for long periods; in less favourable areas the continued maintenance of colonies is dependent upon the frequency with which ticks can feed on a suitable host. Some predation of adult ticks occurs but losses due to bush fires are not important. Heavy infestations of ticks may contribute to the mortality of young warthogs. The survey confirms experimental evidence that ASFV is well adapted to maintenance in the vector population.

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“…Observations on certain biological characters of these eight cultures were made a t the Institute for Medical Research, Mwanza, Tanganyika, and have led us to the conclusion that these cultures of 0. d a t a all belong to a distinct biological variant. In addition, it should be mentioned here that the distribution of this tick in native huts in the central and western areas of South Africa (Zumpt, 1958) is far more continuous than previously suspected (Leeson, 1952), despite the general aridity of the area and the existence there of extensive deserts (Walton, 1957).…”

Section: Introductionmentioning

confidence: 63%

A BIOLOGICAL VARIANT OF ORNITHODOROS MOUBATA MURRAY (IXODOIDEA: ARGASIDAE) FROM SOUTH AFRICA

Walton

1959

Proceedings of the Royal Entomological Society of London. Serie

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The recorded Distribution of Ornithodoros moubata (Murray) (Acarina)

Cited by 14 publications

References 8 publications

A Preliminary Survey of the Distribution and Host-specificity of Ticks (Ixodoidea) in the Bechuanaland Protectorate

A Preliminary Survey of the Distribution and Host-specificity of Ticks (Ixodoidea) in the Bechuanaland Protectorate

Distribution and ecology of Ornithodoros moubata porcinus Walton (Acarina) in animal burrows in East Africa

A BIOLOGICAL VARIANT OF ORNITHODOROS MOUBATA MURRAY (IXODOIDEA: ARGASIDAE) FROM SOUTH AFRICA

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