Ecological aspects of the free-living ticks (Acari: Ixodidae) on animal trails within Atlantic rainforest in south-eastern Brazil
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
19/10/2012
19/10/2012
2009
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Resumo |
In a recent ecological study of the ticks on animal trails within an area of Atlantic rainforest in south-eastern Brazil, Amblyomma aureolatum, A. brasiliense, A. incisum, A. ovale and Haemaphysalis juxtakochi were found questing on the vegetation. Most of the ticks recorded by a small, man-made dam on the forest border were A. dubitatum but a few A. brasiliense and A. cajennense, one A. incisum and one H. juxtakochi were also found. The seasonal activity of the ticks indicated that A. incisum and A. brasiliense had one generation/year. On the animal trails, most tick species and stages quested on the vegetation at a height of 30-40 cm above ground level. The questing larvae and adults of A. incisum tended to be found higher, however, with the greatest numbers recorded 40-50 cm (larvae) or 60-70 cm (adults) above ground level. Most of the adult ticks (81.1% -100%), nymphs (78.6%-100%) and larval clusters (100%) found on a forest trail remained questing at the same location over a 24-h period. Carbon-dioxide traps in the rainforest attracted, 50% of the ticks observed questing on the nearby vegetation and, curiously, the CO(2) traps set deep in the forest attracted far fewer ticks than similar traps set by the dam. The ecological relationships between the ticks, their hosts and the rainforest environment are discussed. CNPq Conselho Nacional de Desenvolvimento Cientifico e Tecnologico Fundacao Nacional de Desenvolvimento do Ensino Superior Particular FAPESP Fundacao de Amparo a Pesquisa do Estado de Sao Paulo Coordenacao de Aperfeic CAPES Coordenação de Aperfeiçoamento de Pessoal de Nivel Superior Projeto de Conservacao e Utilizacao Sustentavel da Diversidade Biologica Brasileira of theMinisterio doMeio Ambiente International Scientific Cooperation Activities (INCO) programme of the European Commission[510561] |
Identificador |
ANNALS OF TROPICAL MEDICINE AND PARASITOLOGY, v.103, n.1, p.57-72, 2009 0003-4983 http://producao.usp.br/handle/BDPI/25239 10.1179/136485909X384956 |
Idioma(s) |
eng |
Publicador |
MANEY PUBLISHING |
Relação |
Annals of Tropical Medicine and Parasitology |
Direitos |
closedAccess Copyright MANEY PUBLISHING |
Palavras-Chave | #AMBLYOMMA-CAJENNENSE ACARI #SAO-PAULO #SOUTHEASTERN BRAZIL #IXODES-SCAPULARIS #MINAS-GERAIS #STATE #HUMANS #POPULATION #DYNAMICS #AMERICA #Public, Environmental & Occupational Health #Parasitology #Tropical Medicine |
Tipo |
article original article publishedVersion |