Preliminary evaluation of exotic tick species and exotic pathogens imported on migratory birds into the British Isles

Pietzsch, Maaike; Mitchell, Richard M.; Jameson, Lisa; Morgan, C. V. G.; Medlock, Jolyon M.; Collins, Donald L.; Chamberlain, John; Gould, Ernest A.; Hewson, Roger; Taylor, Mike; Leach, Steve

doi:10.1016/j.vetpar.2008.05.006

Cited by 29 publications

(30 citation statements)

References 7 publications

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“…These results are consistent with the usual host preferences of I. ricinus in other European countries (Estrada-Peña et al 2004). However an exception is attributed to immature stages of I. ricinus commonly observed on birds in British Isles (Pietzsch et al 2008), Czeck Republic (Dubska et al 2009), Germany (Kipp et al 2006), Italy (Mannelli et al 2005), Poland (Skotarczak et al 2006), Slovakia (Spitalska et al 2006), Spain (Estrada-Peña et al 2005), Sweden (Waldenstrom et al 2007) and Switzerland (Humair et al 1993;Marie-Angele et al 2006), that were not found during this study. This could be endorsed to the fact that almost all the collections of ticks from birds resulted from hosts that came from African rather than European routes of migration, which also corroborates the fact that immature stages of H. marginatum were the main species found on birds in mainland (Silva et al 2001;Santos-Silva et al 2006b).…”

Section: The Genus Ixodescontrasting

confidence: 49%

The hard-tick fauna of mainland Portugal (Acari: Ixodidae): an update on geographical distribution and known associations with hosts and pathogens

et al. 2011

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This work is an updated revision of the available information on Portuguese ixodid tick species. It includes data on tick biology, ecology, taxonomy and host/pathogen-associations. The current list of Portuguese ixodid ticks comprises twenty species: Dermacentor marginatus (Sulzer, 1776), Dermacentor reticulatus (Fabricius, 1794), Haemaphysalis hispanica Gil Collado, 1938, Haemaphysalis inermis Birula, 1895, Haemaphysalis punctata Canestrini & Fanzago, 1878, Hyalomma lusitanicum Koch, 1844, Hyalomma marginatum Koch, 1844, Ixodes acuminatus Neumann, 1901, Ixodes bivari Dias, 1990, Ixodes canisuga Johnston, 1849, Ixodes frontalis (Panzer, 1798), Ixodes hexagonus Leach, 1815, Ixodes ricinus (Linnaeus, 1758), Ixodes simplex Neumann, 1906, Ixodes ventalloi Gil Collado, 1936, Ixodes vespertilionis Koch, 1844, Rhipicephalus (Boophilus) annulatus (Say, 1821), Rhipicephalus bursa Canestrini & Fanzago, 1878, Rhipicephalus pusillus Gil Collado, 1938, and Rhipicephalus sanguineus (Latreille, 1806).

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Section: The Genus Ixodescontrasting

confidence: 49%

The hard-tick fauna of mainland Portugal (Acari: Ixodidae): an update on geographical distribution and known associations with hosts and pathogens

et al. 2011

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“…The first is common through sub-Saharan Africa, while the second is common in North Africa, as well as southern Europe and Asia Minor to western Iran (2). The bird species with higher tick infestations in this study were S. atricapilla, I. pallida, and S. curruca (33.7%, 16.8%, and 13.4%, respectively), which are known to feed on the ground and forage in low scrub (45) and thus are exposed to ectoparasites (46,47).…”

Section: Discussionmentioning

confidence: 73%

Francisella-Like Endosymbionts and Rickettsia Species in Local and Imported Hyalomma Ticks

Azagi

Klement

Perlman

et al. 2017

Appl Environ Microbiol

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Hyalomma ticks (Acari: Ixodidae) are hosts for Francisella-like endosymbionts (FLE) and may serve as vectors of zoonotic disease agents. This study aimed to provide an initial characterization of the interaction between Hyalomma and FLE and to determine the prevalence of pathogenic Rickettsia in these ticks. Hyalomma marginatum, Hyalomma rufipes, Hyalomma dromedarii, Hyalomma aegyptium, and Hyalomma excavatum ticks, identified morphologically and molecularly, were collected from different hosts and locations representing the distribution of the genus Hyalomma in Israel, as well as from migratory birds. A high prevalence of FLE was found in all Hyalomma species (90.6%), as well as efficient maternal transmission of FLE (91.8%), and the localization of FLE in Malpighian tubules, ovaries, and salivary glands in H. marginatum. Furthermore, we demonstrated strong cophylogeny between FLE and their host species. Contrary to FLE, the prevalence of Rickettsia ranged from 2.4% to 81.3% and was significantly different between Hyalomma species, with a higher prevalence in ticks collected from migratory birds. Using ompA gene sequences, most of the Rickettsia spp. were similar to Rickettsia aeschlimannii, while a few were similar to Rickettsia africae of the spotted fever group (SFG). Given their zoonotic importance, 249 ticks were tested for Crimean Congo hemorrhagic fever virus infection, and all were negative. The results imply that Hyalomma and FLE have obligatory symbiotic interactions, indicating a potential SFG Rickettsia zoonosis risk. A further understanding of the possible influence of FLE on Hyalomma development, as well as on its infection with Rickettsia pathogens, may lead to novel ways to control tick-borne zoonoses.IMPORTANCE This study shows that Francisella-like endosymbionts were ubiquitous in Hyalomma, were maternally transmitted, and cospeciated with their hosts. These findings imply that the interaction between FLE and Hyalomma is of an obligatory nature. It provides an example of an integrative taxonomy approach to simply differentiate among species infesting the same host and to identify nymphal and larval stages to be used in further studies. In addition, it shows the potential of imported Hyalomma ticks to serve as a vector for spotted fever group rickettsiae. The information gathered in this study can be further implemented in the development of symbiont-based disease control strategies for the benefit of human health.

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“…The fact that the spatial structuring of three genetic lineages has been maintained despite thousands of years of tick transportation by migratory birds across the North Sea and the English Channel [21, 52] is quite striking. One reason might be that birds are mainly infested by immature ticks (larvae and nymphs) [21].…”

Section: Discussionmentioning

confidence: 99%

Phylogenetic Lineages and Postglacial Dispersal Dynamics Characterize the Genetic Structure of the Tick, Ixodes ricinus, in Northwest Europe

Røed

Kvie

Hasle³

et al. 2016

PLoS ONE

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Dispersal and gene flow are important mechanisms affecting the dynamics of vectors and their pathogens. Here, patterns of genetic diversity were analyzed in many North European populations of the tick, Ixodes ricinus. Population sites were selected within and between areas separated by geographical barriers in order to evaluate the importance of tick transportation by birds in producing genetic connectivity across open sea and mountain ranges. The phylogenetic analyses of the mitochondrial control region and the cytochrome b gene revealed two distinct clades with supported sub-clades, with three genetic lineages: GB and WNo associated with Great Britain and western Norway respectively, and Eu with a wider distribution across continental Europe in agreement with much lower efficiency of tick dispersal by birds than by large mammals. The results suggest different ancestry of I. ricinus colonizing Britain and the rest of northern Europe, possibly from different glacial refuges, while ticks from western Norway and continental Europe share a more recent common ancestry. Demographic history modeling suggests a period of strong increase in tick abundance coincident with progression of the European Neolithic culture, long after their post-glacial colonization of NW Europe.

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Preliminary evaluation of exotic tick species and exotic pathogens imported on migratory birds into the British Isles

Cited by 29 publications

References 7 publications

The hard-tick fauna of mainland Portugal (Acari: Ixodidae): an update on geographical distribution and known associations with hosts and pathogens

The hard-tick fauna of mainland Portugal (Acari: Ixodidae): an update on geographical distribution and known associations with hosts and pathogens

Francisella-Like Endosymbionts and Rickettsia Species in Local and Imported Hyalomma Ticks

Phylogenetic Lineages and Postglacial Dispersal Dynamics Characterize the Genetic Structure of the Tick, Ixodes ricinus, in Northwest Europe

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