INVESTIGADORES
LARESCHI Marcela
artículos
Título:
Prediction of prevalence from mean abundance via a simple epidemiological model in mesostigmate mites from two geographic regions
Autor/es:
BORIS KRASNOV; N. KORALLO-VINARSKALLA; M.V. VINARSKI; MARCELA LARESCHI
Revista:
PARASITOLOGY
Editorial:
CAMBRIDGE UNIV PRESS
Referencias:
Año: 2010 vol. 137 p. 1227 - 1237
ISSN:
0031-1820
Resumen:
We analysed data on the abundance and distribution of 26 species of mesostigmate mites with different feeding habits
collected from bodies of small mammalian hosts in 2 geographical regions (West Siberia and Argentina). We tested whether
prevalence of a mite can be reliably predicted from a simple epidemiological model that takes into account mean abundance
and its variance. We theorized that the difference between prevalence predicted from the model and observed prevalence
would be smallest in obligatory haematophagous mites, intermediate in facultatively haematophagous mites and greatest in
non-haematophagous mites. We also theorized that prevalence of mites from the region with sharp seasonality (Siberia)
would be predicted accurately only if host number would be taken into account. We found that the success of a simple
epidemiological model to predict prevalence in mites was similar to that reported earlier for other ectoparasitic arthropods.
Surprisingly, the model predicted prevalence of obligatory exclusively haematophagous mites less successfully than that of
mites with other feeding habits. No difference in the model performance between mites occurring in the 2 geographical
regions were found independent of whether the model took the number of hosts into account.