First Records of Hyalomma aegyptium (Acari: Ixodida: Ixodidae) from the Russian Spur-Thighed Tortoise, Testudo graeca nikolskii, with an Analysis of Tick Population Dynamics

Robbins, Richard G.; Karesh, William B.; Calle, Paul P.; Leontyeva, O.A.; Pereshkolnik, S.; Rosenberg, S.

doi:10.2307/3284699

Cited by 26 publications

(22 citation statements)

References 9 publications

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“…We confirmed the strong dominance of H. aegyptium among adult ticks parasitizing Testudo, which is in agreement with previous studies (e.g. Robbins et al 1998;Leontyeva and Kolonin 2002). Also among the immature stages, H. aegyptium larvae and nymphs were the most commonly recorded ticks.…”

Section: Rhipicephalus Sanguineussupporting

confidence: 93%

“…However, this phenomenon was not even addressed by most authors, which either examined only one tortoise species (e.g. Hoogstraal and Kaiser 1960;Kaiser and Hoogstraal 1963;Petney and Al-Yaman 1985;Robbins et al 1998) or did not specify the host species (e.g. Drensky 1955;Č erný 1959;Haitlinger 1993).…”

Section: Rhipicephalus Sanguineusmentioning

confidence: 99%

“…On tortoises, it is most frequently reported from Testudo graeca Linnaeus, 1758 (e.g. Hoogstraal and Kaiser 1960;Petney and Al-Yaman 1985;Robbins et al 1998;Leontyeva and Kolonin 2002) followed by T. horsfieldii Gray, 1844 (e.g. Kaiser and Hoogstraal 1963;Leontyeva and Kolonin 2002;Apanaskevich 2003), whereas other Testudo species are mentioned exceptionally, if ever (Zlatanova 1991;Burridge and Simmons 2003).…”

Section: Introductionmentioning

confidence: 99%

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Hyalomma aegyptium as dominant tick in tortoises of the genus Testudo in Balkan countries, with notes on its host preferences

et al. 2007

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Collection of 1327 ticks sampled throughout Greece, Bulgaria, Romania and Croatia, from 211 tortoises belonging to three species, Testudo marginata Schoepff, T. graeca Linnaeus, and T. hermanni Gmelin, revealed the presence of four species of ixodid ticks, namely Hyalomma aegyptium (Linnaeus), Haemaphysalis sulcata Canestrini and Fanzago, H. inermis Birula and Rhipicephalus sanguineus (Latreille). Study confirmed the strong dominance of all life stages of H. aegyptium among ticks parasitizing west Palaearctic tortoises of genus Testudo Linnaeus. Furthermore, a considerable portion of ticks collected from tortoises in southwestern Bulgaria represent larvae and nymphs of H. sulcata. At the same area we collected as exception one larva and one nymph of H. inermis from a single specimen of T. hermanni. Our findings of four adults of R. sanguineus is the first record of this species from reptilian host. According to our results achieved on localities with syntopic occurrence of two tortoise species, T. marginata and T. graeca represent in the Balkans the principal hosts of H. aegyptium, whereas T. hermanni serves only as an alternative host in the areas close to range of either T. marginata or T. graeca.

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Section: Rhipicephalus Sanguineussupporting

confidence: 93%

Section: Rhipicephalus Sanguineusmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hyalomma aegyptium as dominant tick in tortoises of the genus Testudo in Balkan countries, with notes on its host preferences

et al. 2007

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“…Its presence outside northern Africa has been reported in countries such as Romania, Spain, Italy, Greece, Bulgaria, Croatia, and even farther north in Belgium (Siroky Pet al 2007). Th e tick has permanent populations in areas of southern Russia (Robbins et al 1998). Th ere have been also introductions of this tick by tortoises imported form northern Africa or eastern Europe, where this tick is common.…”

Section: Alien Tick Species: Case Studiesmentioning

confidence: 99%

Mites and ticks (Acari). Chapter 7.4

Navajas¹,

Migeon²,

Estrada-Peña³

et al. 2010

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Th e inventory of the alien Acari of Europe includes 96 species alien to Europe and 5 cryptogenic species. Among the alien species, 87 are mites and 9 tick species. Besides ticks which are obligate ectoparasites, 14 mite species belong to the parasitic/predator regime. Among these species, some invaded Europe with rodents (8 spp.) and others are parasitic to birds (2 spp). Th e remaining 77 mite species are all phytophagous and among these 40% belong to the Eriophyidae (37 spp.) and 29% to the Tetranychidae (27 spp.) families. Th ese two families include the most signifi cant agricultural pest. Th e rate of introductions has exponentially increased within the 20 th century, the amplifi cation of plant trade and agricultural commodities movements being the major invasion pathways. Most of the alien mite species (52%) are from North America, Asia (25%), and Central and South America (10%). Half of the ticks (4 spp.) alien to Europe originated from Africa. Most of the mite species are inconspicuous and data regarding invasive species and distribution range is only partially available. More research is needed for a better understanding of the ecological and economic eff ects of introduced Acari.

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“…H. aegyptium is dominant species among ticks parasitizing tortoises in western Palaearct (Apanaskevich 2003;Robbins et al 1998;Š iroký et al 2006;Sweatman 1968), possessing typical three-host life cycle. Larvae and nymphs are less hostspecific infesting tortoises, lizards, birds, small mammals and even men (Apanaskevich 2004;Kolonin 2004;Vatansever et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Life cycle of tortoise tick Hyalomma aegyptium under laboratory conditions

et al. 2011

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The tortoise tick Hyalomma aegyptium has a typical three-host life-cycle. Whereas its larvae and nymphs are less host-specific feeding on a variety of tetrapods, tortoises of the genus Testudo are principal hosts of adults. Ticks retained this trait also in our study under laboratory conditions, while adults were reluctant to feed on mammalian hosts. Combination of feeding larvae and nymphs on guinea pigs and feeding of adults on Testudo marginata tortoises provided the best results. Feeding period of females was on average 25 days (range 17-44), whereas males remain after female engorgement on tortoise host. Female pre-oviposition period was 14 days (3-31), followed by 24 days of oviposition (18-29). Pre-eclosion and eclosion, both together, takes 31 days (21-43). Larvae fed 5 days (3-9), then molted to nymphs after 17 days (12-23). Feeding period of nymphs lasted 7 days (5-10), engorged nymphs molted to adults after 24 days (19-26). Sex ratio of laboratory hatched H. aegyptium was nearly equal (1:1.09). The average weight of engorged female was 0.95 (0.72-1.12) g. The average number of laid eggs was 6,900 (6,524-7,532) per female, it was significantly correlated with weight of engorged female. Only 2.8% of engorged larvae and 1.8% of engorged nymphs remained un-molted and died. Despite the use of natural host species, feeding success of females reached only 45%. The whole life-cycle was completed within 147 days (98-215).

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First Records of Hyalomma aegyptium (Acari: Ixodida: Ixodidae) from the Russian Spur-Thighed Tortoise, Testudo graeca nikolskii, with an Analysis of Tick Population Dynamics

Cited by 26 publications

References 9 publications

Hyalomma aegyptium as dominant tick in tortoises of the genus Testudo in Balkan countries, with notes on its host preferences

Hyalomma aegyptium as dominant tick in tortoises of the genus Testudo in Balkan countries, with notes on its host preferences

Mites and ticks (Acari). Chapter 7.4

Life cycle of tortoise tick Hyalomma aegyptium under laboratory conditions

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