An ecological study of sand flies (Diptera: Psychodidae) in the vicinity of Lençóis Maranhenses National Park, Maranhão, Brazil

Filho, Adalberto Alves Pereira; Bandeira, Maria da Conceição Abreu; Fonteles, Raquel Silva; Moraes, Jorge Luíz Pinto; Lopes, Camila Ragonezi Gomes; Melo, Maria Norma; Rebêlo, José Manuel Macário

doi:10.1186/s13071-015-1045-5

Cited by 20 publications

(13 citation statements)

References 44 publications

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“…Environments located around forest fragments, in turn, have negative effects, acting as isolation agents for the fauna. Even so, the number of species obtained in this study, with a 24‐month effort, was double that found in the same area by Pereira‐Filho (2015) in 12 months of collection.…”

Section: Discussioncontrasting

confidence: 45%

Effects of forest degradation on the sand fly communities of northeast Brazil

Moraes

Santana

Bandeira

et al. 2020

Journal of Vector Ecology

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The richness and abundance of sand fly species were studied in northeastern Brazil in areas of leishmaniasis transmission. The study was carried out in two forest areas with different deforestation times for agricultural and livestock activities: one modified by long‐term settlement (more than 50 years of occupation) and another less impacted by short‐term settlement (10 years). The sand flies were captured with CDC light traps from 18:00 to 06:00 for three consecutive nights, once a month, from May, 2012 to April, 2014. The study captured 21,708 specimens and also 33 species of Lutzomyia and two of Brumptomyia. Species richness and abundance were higher in the more conserved area of short‐term occupation (31 species; 61.7%) than in the more degraded area with long‐term occupation (17 species; 38.3%). In the most conserved area, the species richness was higher in the forest fragment than in the rural settlement, whereas in the degraded area the richness was higher in the peri‐domicile than in the forest. The diversity was higher in the degraded area forest. There were significant statistical differences when comparing the means of total abundance with the intra‐domicile, peri‐domicile, and forest environments. The average abundance was statistically higher in the peri‐domicile compared to the forest (p = 0.009), but there were no statistically significant differences between intra‐domicile‐peri‐domicile (p = 0.11) and forest‐intra‐domicile (p = 0.87). In conclusion, a change in vegetation cover negatively affects the richness and abundance of sand flies in the natural environment.

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Section: Discussioncontrasting

confidence: 45%

Effects of forest degradation on the sand fly communities of northeast Brazil

Moraes

Santana

Bandeira

et al. 2020

Journal of Vector Ecology

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“…(1) According to the population statistics in Kashgar Prefecture in Xinjiang Statistical Yearbook 2004-2016 [20], we have estimated the carrying capacity of population K 1 � 5000000. (2) According to the terrain and climate factors of Kashgar and the survival habits of the sandflies [21][22][23][24], the carrying capacity of sandflies K 2 � 7000000 has been estimated in Kashgar. In 2015, the number of dogs in Kashgar Prefecture of Xinjiang was close to 80,000 [25], so we have assumed the carrying capacity of dogs in Xinjiang K 3 � 100000.…”

Section: Resultsmentioning

confidence: 99%

Mathematical Model Analysis and Simulation of Visceral Leishmaniasis, Kashgar, Xinjiang, 2004–2016

Song

Zhang

et al. 2020

Complexity

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Visceral leishmaniasis (VL), known as kala-azar, is a serious parasitic disease. After malaria, VL is the second largest parasitic killer. This paper focuses on the VL transmission around sandflies, dogs, and people. Kashgar is located on the southwestern edge of Xinjiang, where kala-azar parasite infection occurs every year. According to the cases reported in the Kashgar Prefecture from 2004 to 2016, we proposed a dynamic model based on these three populations. The SEIR model was established for human population, the SI model was established for sandfly population, and the SI model was established for dog population. We fitted the model to cumulative cases from 2004 to 2016 for the epidemic in Kashgar and predicted that the cumulative incidence of kala-azar in Kashgar would continue to increase, but its growth rate would gradually slow down, which means that the number of cases would gradually decrease every year. We also estimated the basic reproduction number R0 = 1.76 (95% CI: 1.49–1.93). The sensitivity analysis shows that the mutual infection between sandfly and dog contributes the most to the basic reproduction number, while the transmission proportion of sandfly to the susceptible person and the mutual infection between sandfly and dog contribute the most to the number of leishmaniasis human cases. Therefore, according to the sensitivity analysis results, reducing the contact between sandflies and dogs is an effective way to reduce kala-azar.

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“…In the last two decades, the rural town areas surrounding the LMNP have expanded, motivated by speculation due to tourism‐related projects (Assunção Junior et al ). Further, environmental conditions in residential peridomestic areas, such as animal shelters without proper sanitation, vegetable gardens fertilized with animal manure, and runoff of household water, favor the formation of breeding sites through increases in soil moisture and organic matter richness (Pereira Filho et al ). Indeed, some Culicoides species are known to breed in standing water on saturated soil and wet domestic animal feces (Braverman , Borkent and Spinelli ).…”

Section: Introductionmentioning

confidence: 99%

The influence of environmental management and animal shelters in vector control ofCulicoides(Diptera, Ceratopogonidae) in northeastern Brazil

Bandeira

Brito

Penha

et al. 2017

Journal of Vector Ecology

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We investigated whether biting midges in peridomestic environments are affected by environmental management practices and the presence of domestic animals. We used CDC light traps to collect midges in 112 residences across 24 locations along tourism routes of Maranhão, Brazil. The collection areas were characterized as follows: i) peridomestic area with domestic animals and without management (dirty); ii) peridomestic with domestic animals and management (clean); iii) peridomestic without animals and with management (clean); iv) peridomestic without animals and without management (dirty). The first two treatments had higher biting midge species richness and abundance, respectively. Generalized linear models indicated a positive correlation between the presence of domestic animals and midge abundance, with an approximate four-fold increase in Culicoides (Diptera: Ceratopogonidae) abundance in peridomestic areas with animals. The same model showed that domestic animals have no influence on richness. Environmental management does not appear to influence species richness or abundance of biting midges. Journal of Vector Ecology 42 (1): 113-119. 2017.

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An ecological study of sand flies (Diptera: Psychodidae) in the vicinity of Lençóis Maranhenses National Park, Maranhão, Brazil

Cited by 20 publications

References 44 publications

Effects of forest degradation on the sand fly communities of northeast Brazil

Effects of forest degradation on the sand fly communities of northeast Brazil

Mathematical Model Analysis and Simulation of Visceral Leishmaniasis, Kashgar, Xinjiang, 2004–2016

The influence of environmental management and animal shelters in vector control ofCulicoides(Diptera, Ceratopogonidae) in northeastern Brazil

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