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Host-parasite association between Didelphis albiventris (Didelphimorphia: Didelphidae) and Ixodes loricatus (Acari: Ixodidae) in their southern ranges
Resumen
The parasitism of Ixodes loricatus Neumann on white-eared opposum, Didelphis albiventris Lund, was analysed in the southern ranges of both. In central Argentina, 118 wild opossums were captured from 2005 to 2012. Adults of I. loricatus were collected (prevalence = 66.1%, mean = 7.03, median = 4), but no immature stage. Tick infestation was not affected by sex (p = 0.27) or age (p = 0.37) of hosts. In line with previous studies about seasonality of larvae
[ver mas...]
The parasitism of Ixodes loricatus Neumann on white-eared opposum, Didelphis albiventris Lund, was analysed in the southern ranges of both. In central Argentina, 118 wild opossums were captured from 2005 to 2012. Adults of I. loricatus were collected (prevalence = 66.1%, mean = 7.03, median = 4), but no immature stage. Tick infestation was not affected by sex (p = 0.27) or age (p = 0.37) of hosts. In line with previous studies about seasonality of larvae and nymphs of I. loricatus, adult tick infestation showed no seasonal trend. This lack of seasonal pattern of infestation for all parasitic stages of I. loricatus may indicate a life cycle governed by nidicolous behaviour, in such a way that this habit would contribute to minimize the influence of external environmental variables. The tick sex ratio was female biased, with two females per one male (p = 0.002). The absence of I. loricatus immatures on D. albiventris suggests that in the study region there is clear segregation of immatures in rodents and adults in marsupials.
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![Thumbnail](/bitstream/handle/20.500.12123/2702/ExperimentalandAppliedAcarology-cover.jpg?sequence=3&isAllowed=y)
Autor
Tarragona, Evelina Luisa;
Mastropaolo, Mariano;
Zurvera, Daniel;
Beldomenico, Pablo Martín;
Guglielmone, Alberto;
Fuente
Experimental and Applied Acarology 75 (1) : 129–134 (May 2018)
Fecha
2018-05
ISSN
0168-8162
1572-9702
1572-9702
Formato
pdf
Tipo de documento
artículo
Palabras Claves
Derechos de acceso
Restringido
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