Capture of Triatoma arthurneivai (Hemiptera: Reduviidae) using a new luminous trap in Southeast Brazil

Dias, João Víctor Leite; Avelar, Bethânia Alves de; Júnior, Hildebrando Cirqueira; Diotaiuti, Liléia; Pires, Herton Helder Rocha

doi:10.1590/s0037-86822011000600023

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…We utilized LED light bulbs because they have a longer lifespan and better electrical efficiency than incandescent bulbs; however, they do not produce heat, which is one of the main ways to attract triatomine bugs (28) . Similar low capture success rates were reported for the municipality of Diamantina, in southeastern Brazil, where only four specimens of triatomine bugs were caught using light traps with LED light bulbs over a one-year period (29) .…”

Section: Identifi Cation Of Trypanosoma Cruzisupporting

confidence: 75%

Triatominae (Hemiptera, Reduviidae) in the Pantanal region: association with Trypanosoma cruzi, different habitats and vertebrate hosts

Santos

Jansen

Mourão

et al. 2015

Rev. Soc. Bras. Med. Trop.

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Introduction:The transmission cycle of Trypanosoma cruzi in the Brazilian Pantanal region has been studied during the last decade. Although considerable knowledge is available regarding the mammalian hosts infected by T. cruzi in this wetland, no studies have investigated its vectors in this region. This study aimed to investigate the presence of sylvatic triatomine species in different habitats of the Brazilian Pantanal region and to correlate their presence with the occurrences of vertebrate hosts and T. cruzi infection. Methods: The fi eldwork involved passive search by using light traps and Noireau traps and active search by visual inspection. The light traps were placed at fi ve selected points along forested areas for seven nights during each of the nine excursions. At each point where a light trap was set, eight Noireau traps were placed in palm trees and bromeliads. Results: In all, 88 triatomine bugs were collected: two and one individuals from light traps and Noireau traps, respectively; three from peridomestic areas; 23 in coati nests; and 59 in thornbird nests. In this study, active search in microhabitats showed higher effi ciency than passive search, since 95% of the triatomine bugs were caught in nests. Further, triatomine bugs were only found to be infected by T. cruzi in coati nests. Conclusions: Coati nests might act as a point of convergence and dispersion for triatomine bugs and mammal hosts infected by T. cruzi, thereby playing an important role in the sylvatic cycle of T. cruzi in the Pantanal region.

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Section: Identifi Cation Of Trypanosoma Cruzisupporting

confidence: 75%

Triatominae (Hemiptera, Reduviidae) in the Pantanal region: association with Trypanosoma cruzi, different habitats and vertebrate hosts

Santos

Jansen

Mourão

et al. 2015

Rev. Soc. Bras. Med. Trop.

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Section: Discussionmentioning

confidence: 99%

“…T. arthurneivai is a rarely captured species, reported only in areas covered by campos rupestres , located in the southern part of the Espinhaço Mountain Range ( Lent & Martins 1940 , Dias et al 2011) . Based on its restricted distribution and singular characteristics of vegetation and relief, Dias et al (2011) proposed that the Espinhaço Mountain Range is the endemic area of this triatomine. The present study results agreed with these previous observations; infestations by T. arthurneivai were clustered in hotspots of occurrence found near borders between the urban area and the Cristais Mountains, a segment of the Espinhaço Mountain range.…”

Section: Discussionmentioning

confidence: 99%

Spatial distribution of triatomines in domiciles of an urban area of the Brazilian Southeast Region

Dias

Queiroz

Martins

et al. 2016

Mem. Inst. Oswaldo Cruz

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Reports of triatomine infestation in urban areas have increased. We analysed the spatial distribution of infestation by triatomines in the urban area of Diamantina, in the state of Minas Gerais, Brazil. Triatomines were obtained by community-based entomological surveillance. Spatial patterns of infestation were analysed by Ripley’s K function and Kernel density estimator. Normalised difference vegetation index (NDVI) and land cover derived from satellite imagery were compared between infested and uninfested areas. A total of 140 adults of four species were captured (100 Triatoma vitticeps, 25Panstrongylus geniculatus, 8 Panstrongylus megistus, and 7 Triatoma arthurneivai specimens). In total, 87.9% were captured within domiciles. Infection by trypanosomes was observed in 19.6% of 107 examined insects. The spatial distributions ofT. vitticeps, P. geniculatus, T. arthurneivai, and trypanosome-positive triatomines were clustered, occurring mainly in peripheral areas. NDVI values were statistically higher in areas infested by T. vitticeps and P. geniculatus. Buildings infested by these species were located closer to open fields, whereas infestations of P. megistus andT. arthurneivai were closer to bare soil. Human occupation and modification of natural areas may be involved in triatomine invasion, exposing the population to these vectors.

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Capture of Triatoma arthurneivai (Hemiptera: Reduviidae) using a new luminous trap in Southeast Brazil

Cited by 2 publications

References 4 publications

Triatominae (Hemiptera, Reduviidae) in the Pantanal region: association with Trypanosoma cruzi, different habitats and vertebrate hosts

Triatominae (Hemiptera, Reduviidae) in the Pantanal region: association with Trypanosoma cruzi, different habitats and vertebrate hosts

Spatial distribution of triatomines in domiciles of an urban area of the Brazilian Southeast Region

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