A mark-release-recapture experiment with Culex tritaeniorhynchus Giles

Reisen, William K.; Aslam, Yasmin; Siddiqui, T. F.; Khan, Afsheen

doi:10.1016/0035-9203(78)90054-8

Cited by 36 publications

(15 citation statements)

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“…tritaeniorhynchus has been demonstrated within the laboratory [97]. This factor, combined with the ability of the vector to overwinter at the extremes of its range [98, 99] and to disperse large distances [100], present the threat of both Cx. tritaeniorhynchus and JEV expanding to and establishing in novel suitable environments.…”

Section: Discussionmentioning

confidence: 99%

“…Factors influencing this expansion are uncertain, but may include an increase in rice farming (increasing the availability of larval habitats for Cx. tritaeniorhynchus [47]), an increase in pig farming (bridging the gap between human-mosquito interaction [49]), potential changes in bird migratory patterns [101, 102], and possible disease spread due to wind-dispersal of infectious mosquitoes [1, 100]. To identify areas suitable for sustaining disease transmission to ensure effective preventative methods are enforced, we must ascertain environments which are suitable for the triad of pathogen, host, and vector.…”

Section: Discussionmentioning

confidence: 99%

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Mapping the spatial distribution of the Japanese encephalitis vector, Culex tritaeniorhynchus Giles, 1901 (Diptera: Culicidae) within areas of Japanese encephalitis risk

et al. 2017

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BackgroundJapanese encephalitis (JE) is one of the most significant aetiological agents of viral encephalitis in Asia. This medically important arbovirus is primarily spread from vertebrate hosts to humans by the mosquito vector Culex tritaeniorhynchus. Knowledge of the contemporary distribution of this vector species is lacking, and efforts to define areas of disease risk greatly depend on a thorough understanding of the variation in this mosquito’s geographical distribution.ResultsWe assembled a contemporary database of Cx. tritaeniorhynchus presence records within Japanese encephalitis risk areas from formal literature and other relevant resources, resulting in 1,045 geo-referenced, spatially and temporally unique presence records spanning from 1928 to 2014 (71.9% of records obtained between 2001 and 2014). These presence data were combined with a background dataset capturing sample bias in our presence dataset, along with environmental and socio-economic covariates, to inform a boosted regression tree model predicting environmental suitability for Cx. tritaeniorhynchus at each 5 × 5 km gridded cell within areas of JE risk. The resulting fine-scale map highlights areas of high environmental suitability for this species across India, Nepal and China that coincide with areas of high JE incidence, emphasising the role of this vector in disease transmission and the utility of the map generated.ConclusionsOur map contributes towards efforts determining the spatial heterogeneity in Cx. tritaeniorhynchus distribution within the limits of JE transmission. Specifically, this map can be used to inform vector control programs and can be used to identify key areas where the prevention of Cx. tritaeniorhynchus establishment should be a priority.Electronic supplementary materialThe online version of this article (doi:10.1186/s13071-017-2086-8) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Mapping the spatial distribution of the Japanese encephalitis vector, Culex tritaeniorhynchus Giles, 1901 (Diptera: Culicidae) within areas of Japanese encephalitis risk

et al. 2017

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“…Adult mosquito dispersal can be estimated with a variety of MMRR approaches [33]. Investigators in most studies released adults at a central point and then recaptured them as they dispersed over time at traps placed in a variety of configurations and at different distances and sampling densities from the release point [50,51]. However, few studies adjusted recapture success by the reduction in sampling effort as a function of distance from the release point, which generally decreased as the square of the radius.…”

Section: Discussionmentioning

confidence: 99%

A global assembly of adult female mosquito mark-release-recapture data to inform the control of mosquito-borne pathogens

et al. 2014

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BackgroundPathogen transmission by mosquitos is known to be highly sensitive to mosquito bionomic parameters. Mosquito mark-release-recapture (MMRR) experiments are a standard method for estimating such parameters including dispersal, population size and density, survival, blood feeding frequency and blood meal host preferences.MethodsWe assembled a comprehensive database describing adult female MMRR experiments. Bibliographic searches were used to build a digital library of MMRR studies and selected data describing the reported outcomes were extracted.ResultsThe resulting database contained 774 unique adult female MMRR experiments involving 58 vector mosquito species from the three main genera of importance to human health: Aedes, Anopheles and Culex. Crude examination of these data revealed patterns associated with geography as well as mosquito genus, consistent with bionomics varying by species-specific life history and ecological context. Recapture success varied considerably and was significantly different amongst genera, with 8, 4 and 1% of adult females recaptured for Aedes, Anopheles and Culex species, respectively. A large proportion of experiments (59%) investigated dispersal and survival and many allowed disaggregation of the release and recapture data. Geographic coverage was limited to just 143 localities around the world.ConclusionsThis MMRR database is a substantial contribution to the compilation of global data that can be used to better inform basic research and public health interventions, to identify and fill knowledge gaps and to enrich theory and evidence-based ecological and epidemiological studies of mosquito vectors, pathogen transmission and disease prevention. The database revealed limited geographic coverage and a relative scarcity of information for vector species of substantial public health relevance. It represents, however, a wealth of entomological information not previously compiled and of particular interest for mosquito-borne pathogen transmission models.

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“…This implies that exponential models should describe time‐to‐capture data from mark‐release experiments, and several studies have since used these models (e.g. Seawright et al , 1977; Reisen et al , 1978, 1980; Costantini et al , 1996). However, one potential bias with the direct application of exponential models to data such as these is that captured individuals are permanently removed from the marked population and this source of population loss is not considered in simple exponential models (Harrington et al , 2001).…”

Section: Introductionmentioning

confidence: 99%

Body size‐associated survival and dispersal rates of Aedes aegypti in Rio de Janeiro

Maciel-de-Freitas

Codeço

Lourenço‐de‐Oliveira

2007

Medical Vet Entomology

120

115

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The daily survival rate of Aedes aegypti (L) (Diptera: Culicidae) is one of the most important parameters in mathematical models of dengue transmission. In this report, we evaluate the effect of adult body size on the survival and dispersal rates of male and female Ae. aegypti, the primary dengue vector in Brazil. Independent of larval diet (i.e. size), the daily survival rate of females recaptured in the field was greater than that of males (smaller: t = 5.617; d.f. = 15; P < 0.05; larger: t = 4.241; d.f. = 16; P < 0.05). Larger males lived longer than smaller males (t = 2.2893; d.f. = 7; P < 0.05), but no size effect was observed for females (t =- 0.086; d.f. = 19; P= 0.932). The daily survival rate of smaller females was similar to that of larger females (0.712 and 0.730, respectively, as calculated by an exponential model, and 0.743 and 0.779, respectively, calculated by a non-linear model), and they dispersed further than larger females (mean distances travelled were 78.8 m and 40.9 m, respectively; t =- 10.22; d.f. = 323; P < 0.05). Adult body size did not influence male dispersal distances (t = 0.904; d.f. = 206; P= 0.367). Given our evidence that smaller females appear to have similar lifespans and evidence from other studies that they bite more frequently during a single gonotrophic cycle than larger females, our results suggest that smaller females have a higher vectorial capacity.

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A mark-release-recapture experiment with Culex tritaeniorhynchus Giles

Cited by 36 publications

References 5 publications

Mapping the spatial distribution of the Japanese encephalitis vector, Culex tritaeniorhynchus Giles, 1901 (Diptera: Culicidae) within areas of Japanese encephalitis risk

Mapping the spatial distribution of the Japanese encephalitis vector, Culex tritaeniorhynchus Giles, 1901 (Diptera: Culicidae) within areas of Japanese encephalitis risk

A global assembly of adult female mosquito mark-release-recapture data to inform the control of mosquito-borne pathogens

Body size‐associated survival and dispersal rates of Aedes aegypti in Rio de Janeiro

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