Paper| Year: | 2017 |
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| Author(s): | G. Tavecchia, Miranda M.-A., D. Borras, M. Bengoa, C. Barceló, C. Paredes-Esquivel, C. Schwarz |
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| Title: | Modelling the range expansion of the Tiger Mosquito in a Mediterranean Island accounting for imperfect detection |
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| Journal: | Frontiers in Zoology |
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| ISSN: | 1742-9994 |
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| JCR Impact Factor: | 3.627 |
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| Volume: | 14 |
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| Issue No.: | 1 |
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| Pages: | 39-49 |
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| D.O.I.: | 10.1186/s12983-017-0217-x |
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| Web: | https://frontiersinzoology.biomedcentral.com/ |
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| Abstract: | © 2017 The Author(s). Backgrounds: Aedes albopictus (Diptera; Culicidae)
is a highly invasive mosquito species and a competent vector of several
arboviral diseases that have spread rapidly throughout the world.
Prevalence and patterns of dispersal of the mosquito are of central
importance for an effective control of the species. We used
site-occupancy models accounting for false negative detections to
estimate the prevalence, the turnover, the movement pattern and the
growth rate in the number of sites occupied by the mosquito in 17
localities throughout Mallorca Island. Results: Site-occupancy
probability increased from 0.35 in the 2012, year of first reported
observation of the species, to 0.89 in 2015. Despite a steady increase
in mosquito presence, the extinction probability was generally high
indicating a high turnover in the occupied sites. We considered two
site-dependent covariates, namely the distance from the point of first
observation and the estimated yearly occupancy rate in the neighborhood,
as predicted by diffusion models. Results suggested that mosquito
distribution during the first year was consistent with what predicted by
simple diffusion models, but was not consistent with the diffusion
model in subsequent years when it was similar to those expected from
leapfrog dispersal events. Conclusions: Assuming a single initial
colonization event, the spread of Ae. albopictus in Mallorca followed
two distinct phases, an early one consistent with diffusion movements
and a second consistent with long distance, 'leapfrog', movements. The
colonization of the island was fast, with ~90% of the sites estimated to
be occupied 3 years after the colonization. The fast spread was likely
to have occurred through vectors related to human mobility such as cars
or other vehicles. Surveillance and management actions near the
introduction point would only be effective during the early steps of the
colonization. |
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Related staffGiacomo TavecchiaRelated projectsIBISES CTA 134Related research groupsEcology and Evolution
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