Ticks on birds from Cerrado forest patches along the Uberabinha river in the Triângulo Mineiro region of Minas Gerais, Brazil

Torga, Khelma; Tolesano-Pascoli, Graziela; Vasquez, Jacqueline Bonfim; Júnior, Eurípedes Luciano da Silva; Labruna, Marcelo Bahia; Ogrzewalska, Maria; Szabó, Matías Pablo Juan

doi:10.1590/s0103-84782013005000121

Cited by 17 publications

(15 citation statements)

References 19 publications

(24 reference statements)

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“…R. parkeri was first described in 1939 in A. maculatum ticks from Texas, and it has only recently been implicated in human disease in the southern United States (58), where cross-reaction with R. rickettsii (an agent of Rocky Mountain spotted fever) occurs and the human burden of disease is therefore difficult to discern. The role of birds in the ecology of R. parkeri is unknown, but R. parkeri-like organisms have been detected from at least three species of bird-derived neotropical Amblyomma ticks in Mexico and Brazil (59,60). Further, the possible pathogenic effects of neotropical Rickettsia species on humans are largely unknown (61).…”

Section: Discussionmentioning

confidence: 99%

Avian Migrants Facilitate Invasions of Neotropical Ticks and Tick-Borne Pathogens into the United States

Cohen

Auckland

Marra

et al. 2015

Appl Environ Microbiol

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bMigratory birds have the potential to transport exotic vectors and pathogens of human and animal health importance across vast distances. We systematically examined birds that recently migrated to the United States from the Neotropics for ticks. We screened both ticks and birds for tick-borne pathogens, including Rickettsia species and Borrelia burgdorferi. Over two spring seasons (2013 and 2014), 3.56% of birds (n ‫؍‬ 3,844) representing 42.35% of the species examined (n ‫؍‬ 85) were infested by ticks. Ground-foraging birds with reduced fuel stores were most commonly infested. Eight tick species were identified, including seven in the genus Amblyomma, of which only Amblyomma maculatum/Amblyomma triste is known to be established in the United States. Most ticks on birds (67%) were neotropical species with ranges in Central and South America. Additionally, a single Ixodes genus tick was detected. A total of 29% of the ticks (n ‫؍‬ 137) and no avian blood samples (n ‫؍‬ 100) were positive for infection with Rickettsia species, including Rickettsia parkeri, an emerging cause of spotted fever in humans in the southern United States, a species in the group of Rickettsia monacensis, and uncharacterized species and endosymbionts of unknown pathogenicity. No avian tick or blood samples tested positive for B. burgdorferi, the etiologic agent of Lyme disease. An extrapolation of our findings suggests that anywhere from 4 to 39 million exotic neotropical ticks are transported to the United States annually on migratory songbirds, with uncertain consequences for human and animal health if the current barriers to their establishment and spread are overcome.T he large-scale seasonal movements of migrants provide opportunities for bird-associated parasites to rapidly disperse over large spatial scales, with implications for human and animal health (1, 2). Birds are increasingly recognized for their roles as reservoirs and hosts to vectors for a suite of emerging zoonotic diseases, including West Nile virus, Lyme disease, influenza A virus, and H5N1 avian influenza virus (3, 4), and they have been implicated in the range expansion and introduction of new pathogens. Additionally, migratory birds have the potential to disperse ectoparasites and their associated pathogens over long distances (5-7).Migratory birds that overwinter in Central and South America are frequently infested with Amblyomma tick species (family Ixodidae), which are common carriers of Rickettsia species parasites (8-11). There are 45 Amblyomma species endemic to the Neotropics (12), where parasitism rates on birds have been found to vary from 6.5% in Panama (10) to 40% in the Brazilian Amazon (9). Rickettsia species of bacteria are transmitted to vertebrates by arthropod vectors, including Amblyomma ticks. The pathogenicity of many tick-borne Rickettsia species is unknown, but there are Ͼ25 recognized species in the zoonotic spotted fever group, including those that cause Rocky Mountain spotted fever, Mediterranean spotted fever, North Asian tick typhus, and Q...

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Section: Discussionmentioning

confidence: 99%

Avian Migrants Facilitate Invasions of Neotropical Ticks and Tick-Borne Pathogens into the United States

Cohen

Auckland

Marra

et al. 2015

Appl Environ Microbiol

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“…The adults of this species are commonly found in the anteaters (Xenarthra, Pilosa) (ARAGÃO, 1936;JONES et al, 1972;BECHARA et al, 2002;LABRUNA et al, 2002a;DANTAS-TORRES et al, 2010;MARTINS et al, 2014a). Subadults, especially nymphs, seem to feed primarily on birds (JONES et al, 1972;LABRUNA et al, 2007a;OGRZEWALSKA et al, 2009aOGRZEWALSKA et al, , 2011aOGRZEWALSKA et al, , 2012aTOLESANO-PASCOLI et al, 2010;LUZ et al, 2012;MARTINS et al, 2013;PASCOAL et al, 2013;TORGA et al, 2013;LUGARINI et al, 2015;NOVAKOVA et al, 2015;RAMOS et al, 2015;WITTER et al, 2016 SABATINI et al, 2010;SZABÓ et al, 2013a, b).…”

Section: Amblyomma Brasiliense Aragão 1908 Occurs Inmentioning

confidence: 99%

Ticks (Acari: Ixodidae) as ectoparasites of Brazilian wild birds and their association with rickettsial diseases

Ogrzewalska

Pintér²

2016

Braz. J. Vet. Res. Anim. Sci.

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Ticks (Acari: Ixodidae) are obligatory hematophagous ectoparasites of a variety of vertebrate hosts and play an important role in the transmission and ecology of infectious pathogens causing diseases in humans and animals worldwide. Sixty-eight species of ticks exist in Brazil, and at least 23 are found parasitizing wild birds. This number is increasing with the advent of new studies highlighting the underestimated role of birds in the life cycle of these arthropods. In South America, many of these ticks are involved in epidemiology of the life-threatening spotted fever diseases caused by bacteria from the genus Rickettsia (Rickettsiales: Rickettsiaceae). The aim of this paper is to present up-to-date knowledge about the bird-tick fauna of Brazil and their association with rickettsioses. The available literature concerning ticks on birds and tick-borne diseases related to these ticks in Brazil has been revised. It could be concluded that birds play a primary role in life cycles of various tick species, especially during immature stages (larvae and nymphs). The best known is a bird-tick fauna from the Atlantic Forest and from Brazilian savannah called Cerrado in southern and central Brazil, respectively. On the other hand, the knowledge about bird tick parasitism from other Brazilian biomes such as the Amazon, Caatinga, Pantanal and Pampas regions is very scarce and requires further study. Moreover, no studies about the role of birds as mobile hosts for spreading ticks to new areas exist, nor has their role in the natural life cycle of Rickettsia been thoroughly examined.Keywords: Ticks. Ectoparasites. Rickettsia. Disease. Birds. Brazil. ResumoOs carrapatos (Acari: Ixodoidea) são ectoparasitas obrigatórias de uma variedade de hospedeiros vertebrados e têm um papel importante na ecologia e transmissão de diversos patógenos causadores de doenças em humanos e animais no mundo todo. No Brasil existem 68 espécies de carrapatos e pelo menos 23 espécies são encontradas parasitando aves silvestres. Esse número tem crescido com o advento de novos estudos ressaltando o papel das aves nos ciclos de vida desses artrópodes. Na América do Sul alguns desses carrapatos estão envolvidos na epidemiologia de doenças graves para o ser humano, como a febre maculosa, causada por bactérias do gênero Rickettsia (Rickettsiales: Rickettsiaceae). O alvo desse artigo é apresentar o estado atual de conhecimento sobre a fauna de carrapatos encontrados em aves no Brasil e as associações estabelecidas com as riquetsioses. A literatura disponível sobre carrapatos em aves e ocorrência de riquétsias foi revisada e pôde ser concluído que aves têm um papel importante nos ciclos de vida de várias espécies de carrapatos, sendo especialmente importantes para os estágios imaturos (larvas e ninfas). A maior parte do conhecimento sabrecai na fauna de carrapatos de aves dos biomas Mata Atlântica e Cerrado no sudeste e centro-oeste do Brasil. Já o conhecimento sobre o parasitismo por carrapatos em aves dos outros biomas: Amazônia, Caatinga, Pantanal...

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“…For the most part, however, studies have reported the occurrence of immature stages (larvae and nymphs) of Amblyomma spp. on wild birds that were captured in different areas of the Brazilian Cerrado and Atlantic Forest biomes (Marini et al 1996, Neves et al 2000, Storni et al 2005, Labruna et al 2007, Ogrzewalska et al 2008, 2011b, Tolesano-Pascoli et al 2010, Santolin et al 2012, Pacheco et al 2012, Amaral et al 2013, Pascoal et al 2013, Sanches et al 2013, Torga et al 2013. Within the Amazon biome, only a single Brazilian study, in the State of Pará, has systematically evaluated wild birds for ticks .…”

Section: Introductionmentioning

confidence: 99%

Ticks of the genus Amblyomma (Acari: Ixodidae) on wild birds in the Brazilian Amazon

Fecchio

Labruna

2014

Systematic and Applied Acarology

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The Amazon biome harbors the richest avifauna in the world. However, in the Brazilian Amazon only a single previous study has systematically evaluated wild birds for ticks. During 2012, wild birds were captured in two areas of the Brazilian Amazon forest, one located in the State of Amazonas, and another in the State of Pará. Overall, 581 wild birds representing 118 species were captured, but only 18 individuals (3.1% prevalence) were infested by ticks, comprising immature stages of Amblyomma calcaratum Neumann, 1899, Amblyomma geayi Neumann, 1899, Amblyomma humerale Koch, 1844, and Amblyomma longirostre (Koch, 1844). The only previous study of birds in the Brazilian Amazon reported 40.2% tick prevalence. Such contrasting prevalence values may stem from seasonal differences or differences in forest disturbance at the two sites.

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Ticks on birds from Cerrado forest patches along the Uberabinha river in the Triângulo Mineiro region of Minas Gerais, Brazil

Cited by 17 publications

References 19 publications

Avian Migrants Facilitate Invasions of Neotropical Ticks and Tick-Borne Pathogens into the United States

Avian Migrants Facilitate Invasions of Neotropical Ticks and Tick-Borne Pathogens into the United States

Ticks (Acari: Ixodidae) as ectoparasites of Brazilian wild birds and their association with rickettsial diseases

<p><strong>Ticks of the genus <em>Amblyomma</em> (Acari: Ixodidae) on wild birds in the Brazilian Amazon</strong></p>

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