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Abundance and associated factors of Amblyomma tigrinum (Acari: Ixodidae) infesting wild foxes in north-central Chile.
Hernández, Felipe; Manqui, Jonatan; González-Acuña, Daniel; Beltrami, Esperanza; Verdugo, Claudio; Acosta-Jamett, Gerardo.
Afiliação
  • Hernández F; Instituto de Medicina Preventiva Veterinaria, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
  • Manqui J; Center for Surveillance and Evolution of Infectious Diseases, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
  • González-Acuña D; Instituto de Medicina Preventiva Veterinaria, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
  • Beltrami E; Programa de Magíster en Ecología Aplicada, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile.
  • Verdugo C; Facultad de Ciencias Veterinarias, Universidad de Concepción, Chillán, Chile.
  • Acosta-Jamett G; Instituto de Medicina Preventiva Veterinaria, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
Rev Bras Parasitol Vet ; 32(4): e008223, 2023.
Article em En | MEDLINE | ID: mdl-37909605
The tick Amblyomma tigrinum inhabits areas with diverse climatic conditions, with adult stages parasitizing wild canids, such as chilla (Lycalopex griseus) and culpeo (Lycalopex culpaeus) foxes. We described the infestation loads in wild foxes captured at three sites (periurban, rural and wild) through an anthropization gradient in north-central Chile. We tested whether local-scale environmental and/or individual host factors can predict tick abundance by using negative binomial models. During 2018-2020 (spring and summer), we captured 116 foxes (44 chillas and 72 culpeos), and 102 of them were infested with ticks (87.9%, CI=80.6-93.2%). We collected 996 A. tigrinum adult ticks, estimating a total mean abundance of 8.6±0.8 ticks/host. Periurban and rural foxes harbored greater tick loads than foxes from the wild site (2.34 and 1.71 greater, respectively) while tick abundance in summer decreased by up to 57% compared to spring. Tempered, more humid climate conditions of the periurban site could favor the development and survival of adults A. tigrinum; and ticks may have adopted a quiescent stage or similar survival mechanisms to cope with summer temperature increases related to the ongoing megadrought. Further studies are warranted to understand the underlying factors determining the life cycle of A. tigrinum at larger spatiotemporal scales.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Infestações por Carrapato / Carrapatos / Ixodidae Limite: Animals País/Região como assunto: America do sul / Chile Idioma: En Revista: Rev Bras Parasitol Vet Assunto da revista: MEDICINA VETERINARIA / PARASITOLOGIA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Chile País de publicação: Brasil
Texto completo
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XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Infestações por Carrapato / Carrapatos / Ixodidae Limite: Animals País/Região como assunto: America do sul / Chile Idioma: En Revista: Rev Bras Parasitol Vet Assunto da revista: MEDICINA VETERINARIA / PARASITOLOGIA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Chile País de publicação: Brasil