Potential distribution of mosquito vector species in a primary malaria endemic region of Colombia
Artículo de revista
2017
Public Library of Science
Rapid transformation of natural ecosystems changes ecological conditions for important
human disease vector species; therefore, an essential task is to identify and understand the
variables that shape distributions of these species to optimize efforts toward control and mit-
igation. Ecological niche modeling was used to estimate the potential distribution and to
assess hypotheses of niche similarity among the three main malaria vector species in north-
ern Colombia: Anopheles nuneztovari, An. albimanus, and An. darlingi. Georeferenced
point collection data and remotely sensed, fine-resolution satellite imagery were integrated
across the Urabá –Bajo Cauca–Alto Sinú malaria endemic area using a maximum entropy
algorithm. Results showed that An. nuneztovari has the widest geographic distribution,
occupying almost the entire study region; this niche breadth is probably related to the ability
of this species to colonize both, natural and disturbed environments. The model for An. dar-
lingi showed that most suitable localities for this species in Bajo Cauca were along the
Cauca and Nechı́ river. The riparian ecosystems in this region and the potential for rapid
adaptation by this species to novel environments, may favor the establishment of popula-
tions of this species. Apparently, the three main Colombian Anopheles vector species in this
endemic area do not occupy environments either with high seasonality, or with low season-
ality and high NDVI values. Estimated overlap in geographic space between An. nuneztovari
and An. albimanus indicated broad spatial and environmental similarity between these spe-
cies. An. nuneztovari has a broader niche and potential distribution. Dispersal ability of
these species and their ability to occupy diverse environmental situations may facilitate sym-
patry across many environmental and geographic contexts. These model results may be
useful for the design and implementation of malaria species-specific vector control interven-
tions optimized for this important malaria region.
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Potential distribution of mosquito vector species in a primary malaria endemic region of Colombia.pdf
Título: Potential distribution of mosquito vector species in a primary malaria endemic region of Colombia.pdf
Tamaño: 11.13Mb
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Título: Potential distribution of mosquito vector species in a primary malaria endemic region of Colombia.pdf
Tamaño: 11.13Mb
PDFLEER EN FLIP