Presumed unconstrained dispersal of Aedes aegypti in the city of Rio de Janeiro, Brazil

Maciel-de-Freitas, Rafael; Lourenço‐de‐Oliveira, Ricardo

doi:10.1590/s0034-89102009000100002

Cited by 44 publications

(39 citation statements)

References 19 publications

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“…It is well known that dispersal estimates for mosquitoes are heavily biased by short trapping radii that are common in MRR experiments (Guerra et al ), and some studies have published longer dispersal than is commonly reported. For example, Maciel‐de Freitas and Lourenço‐de Oliveira () found a MDT of 288 m for female Ae. aegypti in Rio De Janeiro, Brazil, which was interpreted as being due to a lack of dispersal barriers in the study area.…”

Section: Discussionmentioning

confidence: 99%

Quantifying Aedes aegypti dispersal in space and time: a modeling approach

2019

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The dispersal of the invasive mosquito Aedes aegypti in urbanized areas has received attention due to the hazard that this species poses to human health. However, we know little about this process at temperate latitudes, especially in recently colonized semi‐arid regions of the southwestern United States that differ ecologically from more typical habitats in the tropics. We collected data on Ae. aegypti dispersal through a mark–release–recapture (MRR) study in Central California. We employed stable isotopes of carbon and nitrogen to mark released mosquitoes. We characterized Ae. aegypti dispersal capacity using both traditional measures of central tendency and dispersal kernel theory coupled with space–time models, allowing for effects of environmental factors to provide more reliable dispersal estimates. Dispersal of Ae. aegypti was similar between females and males, and we found the mean distances traveled to be 224–240 m from the release location when estimated by conventional methods. Model‐based inference allowed for a more nuanced interpretation, with even greater dispersal distances possible depending on direction and environmental context. Our results showed that experimental conditions, such as spatial arrangement of traps and duration of the recapture period, as well as environmental conditions, such as wind speed and direction, altered the probability of recapturing marked mosquitoes, and therefore the observed dispersal pattern. This represents the first assessment of Ae. aegypti dispersal in the semi‐arid southwestern United States, which is unique among published studies in that the period of peak annual Ae. aegypti abundance coincides with cumulative precipitation close to zero. Results show that this species dispersed on average farther than commonly documented for other areas of the world. Our findings provide information for defining spatial control strategies, such as incompatible insect technique, which rely on a clear understanding of dispersal rates among neighboring areas.

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Section: Discussionmentioning

confidence: 99%

Quantifying Aedes aegypti dispersal in space and time: a modeling approach

2019

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“…ae. aegypti mosquitoes tend to stay within approximately 10–500 m flight distance during their entire lifetimes (McDonald ; Trpis and Hausermann ; Reiter et al ; Harrington et al ; Maciel‐de‐Freitas and Lourenco‐de‐Oliveira ) when stable breeding sites and host blood are readily available, as would be likely for many domestic populations. With little dispersal or gene flow, genetic structure could be formed and maintained even on a small geographic scale.…”

Section: Discussionmentioning

confidence: 99%

HUMAN IMPACTS HAVE SHAPED HISTORICAL AND RECENT EVOLUTION INAEDES AEGYPTI, THE DENGUE AND YELLOW FEVER MOSQUITO

Brown

Evans

Zheng³

et al. 2013

Evolution

262

297

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Though anthropogenic impacts are often considered harmful to species, human modifications to the landscape can actually create novel niches to which other species can adapt. These “domestication” processes are especially important in the context of arthropod disease vectors, where ecological overlap of vector and human populations may lead to epidemics. Here, we present results of a global genetic study of one such species, the dengue and yellow fever mosquito, Aedes aegypti, whose evolutionary history and current distribution have been profoundly shaped by humans. We used DNA sequences of four nuclear genes and 1504 SNP markers developed with RAD-tag sequencing to test the hypothesis that Ae. aegypti originated in Africa, where a domestic form arose and spread throughout the tropical and subtropical world with human trade and movement. Results confirmed African ancestry of the species, and supported a single subspeciation event leading to the pantropical domestic form. Additionally, genetic data strongly supported the hypothesis that human trade routes first moved domestic Ae. aegypti out of Africa into the New World, followed by a later invasion from the New World into Southeast Asia and the Pacific. These patterns of domestication and invasion are relevant to many species worldwide, as anthropogenic forces increasingly impact evolutionary processes.

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“…aegypti mosquitos spend their lifetime in or close to the place where they became adults (Harrington et al, 2005). Therefore, a limited flight range plus human interactions within neighborhoods and human mobility across a community can determine the spatial patterns of the transmission (Harrington et al, 2005;Maciel-de-Freitas and Lourenço-de-Oliveira, 2009;Stoddard et al, 2013Stoddard et al, , 2009). …”

Section: Introductionmentioning

confidence: 99%

Spatio-temporal and neighborhood characteristics of two dengue outbreaks in two arid cities of Mexico

et al. 2017

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Little is currently known about the spatial-temporal dynamics of dengue epidemics in arid areas. This study assesses dengue outbreaks that occurred in two arid cities of Mexico, Hermosillo and Navojoa, located in northern state of Sonora. Laboratory confirmed dengue cases from Hermosillo (N=2,730) and Navojoa (N=493) were geocoded by residence and assigned neighborhood-level characteristics from the 2010 Mexican census. Kernel density and Space-time cluster analysis was performed to detect high density areas and space-time clusters of dengue. Ordinary Least Square regression was used to assess the changing socioeconomic characteristics of cases over the course of the outbreaks. Both cities exhibited contiguous patterns of space-time clustering. Initial areas of dissemination were characterized in both cities by high population density, high percentage of occupied houses, and lack of healthcare. Future research and control efforts in these regions should consider these space-time and socioeconomic patterns.

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Presumed unconstrained dispersal of Aedes aegypti in the city of Rio de Janeiro, Brazil

Cited by 44 publications

References 19 publications

Quantifying Aedes aegypti dispersal in space and time: a modeling approach

Quantifying Aedes aegypti dispersal in space and time: a modeling approach

HUMAN IMPACTS HAVE SHAPED HISTORICAL AND RECENT EVOLUTION INAEDES AEGYPTI, THE DENGUE AND YELLOW FEVER MOSQUITO

Spatio-temporal and neighborhood characteristics of two dengue outbreaks in two arid cities of Mexico

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