Morphological description of the nymphal stage of Amblyomma geayi and new nymphal records of Amblyomma parkeri

Martins, Thiago Fernandes; Scofield, Alessandra; Oliveira, Wanessa Batista Lima; Nunes, Pablo Henrique; Ramírez, Diego García; Barros‐Battesti, Darci Moraes; Sá, Lílian Rose Marques de; Ampuero, Fernanda; Souza, Júlio César de; Labruna, Marcelo B.

doi:10.1016/j.ttbdis.2012.11.015

Cited by 34 publications

(21 citation statements)

References 11 publications

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“…In the present study, adults of A. geayi and adults and nymphs of A. varium were identified on B. tridactylus, corroborating the studies of SERRA-FREIRE et al (1993) andMARQUES et al (2002), who also identified adults of these same species of ticks in this same host in the North region of Brazil. Additionally, in the present study, ten nymphs of A. geayi were identified from B. tridactylus for the first time; nymphs of this species of tick had only been previously reported in the Brazilian Amazon region in Bradypus variegatus by MARTINS et al (2013) in the municipality of Belém, state of Pará.…”

Section: Resultsmentioning

confidence: 48%

“…During the clinical evaluation and routine management, all animals received from nature were inspected for the presence of ticks as soon as they arrive at the zoo, and the ectoparasites were removed and stored in 70% ethanol for taxonomic identification according to BARROS-BATTESTI et al (2006) and MARTINS et al (2010MARTINS et al ( , 2013, using a Zeiss Stemi Sv11 stereoscope. Collected ticks were deposited in the tick collection "Coleção Nacional de Carrapatos Danilo Gonçalves Saraiva" (CNC) of the University of São Paulo under accession numbers CNC-3535-3542.…”

Section: Methodsmentioning

confidence: 99%

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Tick fauna of wild animals received and attended at the Santarém Zoological Park, western Pará State, Brazil

et al. 2017

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Ticks are known worldwide for parasitizing a number of wild hosts. However, few studies have been conducted on ticks in zoos in Brazil. The objective of the present study was to collect, identify, and report the parasitic tick fauna found on wild Amazon animals received and attended at the Santarém Zoological Park from September 2004 to September 2013. In all, 56 animals, including 26 mammals and 30 reptiles, were sampled, from which 1172 ticks were collected and identified, comprising 862 adults, 284 nymphs, and 26 larvae. Nymphs of Amblyomma geayi on three-toed sloth (Bradypus tridactylus), adults of Amblyomma longirostre on black dwarf porcupine (Coendou nycthemera), and nymphs of Amblyomma naponense on southern tamandua (Tamandua tetradactyla) were identified for the first time in the country in the present study. Although, the North region is the largest among the five Brazilian regions, this is the first study conducted with ticks and animals attended in a zoo in the Brazilian Amazon.

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Section: Resultsmentioning

confidence: 48%

Section: Methodsmentioning

confidence: 99%

Tick fauna of wild animals received and attended at the Santarém Zoological Park, western Pará State, Brazil

et al. 2017

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“…Only A. geayi was detected exclusively on canopy-foraging migrants from South America (red-eyed vireo and scarlet tanager). It is possible that these long-distance migrants transported A. geayi from South America, where it is known to infest birds in the Amazon (9), to the United States, but A. geayi is also known to occur in Central America (72). The broad geographic distribution of the tick and bird species in this study limits our ability to identify the geographic location of infestation.…”

Section: Discussionmentioning

confidence: 91%

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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“…These include the first record of A. parkeri within the Cerrado biome. Previous records of A. parkeri were restricted to Brazilian Atlantic forest biome, in the states of Santa Catarina, Paraná, São Paulo, Rio de Janeiro, Minas Gerais and Bahia (Labruna et al 2009a;Ogrzewalska et al 2011;Martins et al 2013). Knowledge on this tick species was hampered by the exclusion from valid tick species lists (Jones et al 1972;Keirans 1992;Horak et al 2002) until recent taxonomic revisions, like the description of the male and redescription of the female and nymph (Labruna et al 2009a;Martins et al 2010).…”

Section: Discussionmentioning

confidence: 99%

Association patterns of ticks (Acari: Ixodida: Ixodidae, Argasidae) of small mammals in Cerrado fragments, western Brazil

et al. 2015

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The present study describes ticks associated with small mammals and analyzes the aggregation patterns according to seasonal and host variations in the Cerrado biome, central-western Brazil. Small mammals were systematically captured in 54 woodland fragments from February 2012 to July 2013. A total of 1,040 animals belonging to eight marsupial and 12 rodent species were captured; 265 animals were parasitized by eight tick species (in decreasing order of abundance): Ornithodoros mimon, Amblyomma coelebs, Amblyomma sculptum, Amblyomma ovale, Amblyomma parvum, Amblyomma dubitatum, Amblyomma parkeri, and Ixodes amarali. With few exceptions, collected ticks were larvae and nymphs. Among the more abundant animals, the marsupial Didelphis albiventris showed the highest tick prevalence (84.4 %), mean abundance (19.2), mean intensity (22.8), richness of ticks species (n = 7), and total abundance of ticks (n = 2,457). Amblyomma sculptum and O. mimon were the most generalist species, collected on four host species. Fifteen new tick-host associations are reported for the first time. Most ticks showed higher prevalence and mean intensity in the dry season, regardless of host species. Overall, tick prevalence and mean intensity of infestation were significantly associated with host gender. Finally, the importance of the large number of records of the argasid O. mimon is discussed.

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Morphological description of the nymphal stage of Amblyomma geayi and new nymphal records of Amblyomma parkeri

Cited by 34 publications

References 11 publications

Tick fauna of wild animals received and attended at the Santarém Zoological Park, western Pará State, Brazil

Tick fauna of wild animals received and attended at the Santarém Zoological Park, western Pará State, Brazil

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

Association patterns of ticks (Acari: Ixodida: Ixodidae, Argasidae) of small mammals in Cerrado fragments, western Brazil

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