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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/22817


Title: Host Specificity of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) with Comments on the Drop-off Rhythm
Authors: Lopes, Cristina Marques Lisboa
Leite, Romário Cerqueira
Labruna, Marcelo Bahia
Oliveira, Paulo Roberto
Borges, Ligia Miranda Ferreira
Rodrigues, Zenon Batista
Ávila de Carvalho, Henrique
Vianna de Freitas, Carolina Maria
Vieira Junior, Carlos Roberto
Keywords: Amblyomma cajennense - drop-off periodicity - host specificity
Issue Date: 31-Dec-1998
Publisher: Fundação Oswaldo Cruz, Fiocruz
Citation: Memórias do Instituto Oswaldo Cruz (ISSN: 1678-8060) Vol 93 Num 3
Abstract: The parasitic specificity of larval, nymph and adult Amblyomma cajennense on six different host species: Oryctolagus cuniculus, Rattus norvegicus, Gallus gallus domesticus, Anas platyrhynchus, Coturnix coturnix and Streptopelia decorata is described. In terms of the numbers of larvae and nymphs recovered, O. cuniculus was the best host species. The modal day for drop-off of larvae and nymphs was day three for the mammal hosts, but variable in the birds. We conclude that adult A. cajennense have a strong degree of specificity due to the fact that the tick failed to complete its life cycle on any of the evaluated hosts. The immature stages, on the other hand, showed a low level of specificity, most especially in the larval stage, indicating the existence of secondary hosts which probably serve as dispersers in the wild. The results also indicated a variable drop-off rhythm for larvae and nymphs in two periods, diurnal (6-18 hr) and nocturnal (18-6 hr), which differed depending upon the host.
URI: http://hdl.handle.net/1807/22817
Other Identifiers: http://www.bioline.org.br/abstract?id=oc98067
Rights: Copyright 1998 Fundacao Oswaldo Cruz - Fiocruz
Appears in Collections:Bioline International Legacy Collection

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