Host Specificity of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) with Comments on the Drop-off Rhythm
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.
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Instituto Oswaldo Cruz, Ministério da Saúde
1998
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oai:scielo:S0074-027619980003000141998-10-08Host Specificity of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) with Comments on the Drop-off RhythmMarques Lisbôa Lopes,CristinaCerqueira Leite,RomárioBahia Labruna,Marcelode Oliveira,Paulo RobertoMiranda Ferreira Borges,LígiaBatista Rodrigues,ZénonÁvila de Carvalho,HenriqueVianna de Freitas,Carolina MariaVieira Júnior,Carlos Roberto Amblyomma cajennense drop off periodicity host specificity 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.info:eu-repo/semantics/openAccessInstituto Oswaldo Cruz, Ministério da SaúdeMemórias do Instituto Oswaldo Cruz v.93 n.3 19981998-05-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761998000300014en10.1590/S0074-02761998000300014 |
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Marques Lisbôa Lopes,Cristina Cerqueira Leite,Romário Bahia Labruna,Marcelo de Oliveira,Paulo Roberto Miranda Ferreira Borges,Lígia Batista Rodrigues,Zénon Ávila de Carvalho,Henrique Vianna de Freitas,Carolina Maria Vieira Júnior,Carlos Roberto |
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Marques Lisbôa Lopes,Cristina Cerqueira Leite,Romário Bahia Labruna,Marcelo de Oliveira,Paulo Roberto Miranda Ferreira Borges,Lígia Batista Rodrigues,Zénon Ávila de Carvalho,Henrique Vianna de Freitas,Carolina Maria Vieira Júnior,Carlos Roberto Host Specificity of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) with Comments on the Drop-off Rhythm |
author_facet |
Marques Lisbôa Lopes,Cristina Cerqueira Leite,Romário Bahia Labruna,Marcelo de Oliveira,Paulo Roberto Miranda Ferreira Borges,Lígia Batista Rodrigues,Zénon Ávila de Carvalho,Henrique Vianna de Freitas,Carolina Maria Vieira Júnior,Carlos Roberto |
author_sort |
Marques Lisbôa Lopes,Cristina |
title |
Host Specificity of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) with Comments on the Drop-off Rhythm |
title_short |
Host Specificity of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) with Comments on the Drop-off Rhythm |
title_full |
Host Specificity of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) with Comments on the Drop-off Rhythm |
title_fullStr |
Host Specificity of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) with Comments on the Drop-off Rhythm |
title_full_unstemmed |
Host Specificity of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) with Comments on the Drop-off Rhythm |
title_sort |
host specificity of amblyomma cajennense (fabricius, 1787) (acari: ixodidae) with comments on the drop-off rhythm |
description |
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. |
publisher |
Instituto Oswaldo Cruz, Ministério da Saúde |
publishDate |
1998 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761998000300014 |
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