Diversity and seasonal patterns of ticks parasitizing wild birds in western Portugal

Norte, Ana Cláudia; Carvalho, Isabel Lopes de; Ramos, Jaime A.; Goncąlves, Maria Joaõ; Gern, Lise; Núncio, Maria Sofia

doi:10.1007/s10493-012-9583-4

Cited by 56 publications

(68 citation statements)

References 22 publications

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“…Ixodes arboricola occurred with a much lower prevalence and intensity in both seasons, while I. redikorzevi and H. punctata were found only during the autumn. These results are similar with studies from other areas important for migratory birds with I. ricinus being considered the most common tick species of Palaearctic-African migratory birds [11], [19], [34], [35], [36]. This species is widespread and common in Romania [37], occurring commonly on birds as well [22] and it is abundant in the region [37].…”

Section: Discussionsupporting

confidence: 90%

“…The presence of I. arboricola is typical for birds, with most occurrences found on ground feeding species, especially in southern [19] and central part of Europe [33]. Haemaphysalis punctata is widely reported from birds, usually with a higher prevalence, while I. redikorzevi is a tick with an eastern distribution in Europe (occurring mainly in Asia), feeding primarily on small mammals [38].…”

Section: Discussionmentioning

confidence: 99%

“…Wild birds are hosts for several species of ticks, contributing to the maintenance of their local populations in delimited geographic areas [19]. However, migratory birds play important roles as distributors of ticks within and between continents [20].…”

Section: Introductionmentioning

confidence: 99%

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Do the Ticks of Birds at an Important Migratory Hotspot Reflect the Seasonal Dynamics of Ixodes ricinus at the Migration Initiation Site? A Case Study in the Danube Delta

et al. 2014

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Migratory birds play important roles as distributors of ticks within and between continents. In the Old World, the most important migratory route of birds links Asia, Europe and Africa. During their migration, birds use various stopover sites, where they feed and rest and where ticks may attach or detach, creating new natural foci for vector-borne diseases. Danube Delta is one of the most important migration hotspots and so far no studies were focused on ticks of migratory birds herein. The aim of the present study was to assess the species diversity and seasonal dynamics of ticks parasitizing migratory birds in Danube Delta Biosphere Reserve. Migratory birds were trapped on Grindul Lupilor (44°41′N; 28°56′E) using mist nets during 4 migratory seasons (2 spring and 2 autumn) in 2011 and 2012. From each bird, all the ticks were collected and identified based on morphological features. Epidemiological parameters (prevalence, mean abundance, mean intensity) were calculated and all data were analysed statistically based on the season (spring and autumn), regional status of birds (migrants and breeding) and foraging behaviour (ground feeders, reed-bed feeders, foliage feeders). A total of 1434 birds (46 species) were captured. Ticks were found on 94 birds (10 species). Significantly more migratory birds hosted ticks, compared to resident birds. The 400 collected ticks belonged to four species: Ixodes ricinus (92.25%), I. arboricola (6.25%), I. redikorzevi (1.00%) and Haemaphysalis punctata (0.50%). A higher prevalence was found for I. ricinus in spring, with higher prevalence of nymphs in this season, while larvae occurred with the same prevalence in both seasons. Larval intensity was higher during spring and nymphs were more abundant during autumn. The seasonal differences in our study may be related not to the local seasonal dynamics of ticks, but on the seasonal dynamics at the site of migration initiation.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

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Do the Ticks of Birds at an Important Migratory Hotspot Reflect the Seasonal Dynamics of Ixodes ricinus at the Migration Initiation Site? A Case Study in the Danube Delta

et al. 2014

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“…For example, pheasants in the United Kingdom [31,32] and blackbirds and song thrushes in Central Europe have been shown to be important reservoirs of B. garinii and B. valaisiana [30,33,34,35]. Moreover, B. turdii, a genospecies first reported from Asia, was found in I. ricinus and Ixodes frontalis larvae feeding on blackbirds in Portugal [6].…”

Section: Discussionmentioning

confidence: 99%

“…A recent molecular study has been carried out on ticks collected from migratory birds in Italy, which found that they are often carriers of ticks, in particular Hyalomma marginatum, infected by Rickettsia sp, B. burgdorferi s.l., C. burnetii and Babesia microti [5]. However, data about the detection of tick-borne bacteria in birds are scant [4,6,7,8], and in particular, there is no data available on the prevalence of these pathogens among birds in Italy.…”

Section: Introductionmentioning

confidence: 99%

Serological evidence of exposure to zoonotic tick-borne bacteria in pheasants (Phasianus colchicus)

Ebani¹,

Bertelloni²,

Mani³

2017

Ann Agric Environ Med.

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Introduction and objective. Previous studies on tick-borne pathogens in the avian population have focused mainly on the detection of the agents in ticks collected from birds, but data about the presence of tick-borne bacteria in these animals are scant. The aim of the presented study was to verify the exposure to some zoonotic tick-borne bacteria, in particular, Anaplasma phagocytophilum, Borrelia burgdorferi sensu lato, Coxiella burnetii, and the Rickettsia species of the Spotted Fever Group (SFG), in pheasants (Phasianus colchicus) living in a central Italy area, characterized by conditions favourable for the diffusion of the ticks. Materials and method. Blood serum samples from 276 farm-reared pheasants were examined by indirect immunofluorescence antibody test to detect antibodies against the 4 reported pathogens. Results. A total of 124 (44.92%) birds resulted as seropositive: in particular 3 (1.08%) to C. burnetii, 31 (11.23%) to A. phagocytophilum, 46 (16.67%) to B. burgdorferi s.l., 49 (17.75%) to SFG Rickettsia spp. antigens. Three pheasants resulted positive both to A. phagocytophilum and B. burgdorferi s.l. antigens, whereas 2 -both to B. burgdorferi s.l. and SFG Rickettsia spp. antigens. The antibody titers varied from 1:40-1:320. Conclusions. The obtained results show that the pheasants had developed antibodies to the investigated tick-borne agents. For this reason, they seem to be involved in the epidemiology of the studied tick-borne bacteria.

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Vectors and Vector Borne Diseases: Morphological and Molecular Diagnosis, Risk Assessment, Population Genetics and Control Strategies

Ramilo

Alho

Gomes

et al. 2020

Advances in Animal Health, Medicine and Production

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Diversity and seasonal patterns of ticks parasitizing wild birds in western Portugal

Cited by 56 publications

References 22 publications

Do the Ticks of Birds at an Important Migratory Hotspot Reflect the Seasonal Dynamics of Ixodes ricinus at the Migration Initiation Site? A Case Study in the Danube Delta

Do the Ticks of Birds at an Important Migratory Hotspot Reflect the Seasonal Dynamics of Ixodes ricinus at the Migration Initiation Site? A Case Study in the Danube Delta

Serological evidence of exposure to zoonotic tick-borne bacteria in pheasants (Phasianus colchicus)

Vectors and Vector Borne Diseases: Morphological and Molecular Diagnosis, Risk Assessment, Population Genetics and Control Strategies

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