DataTri, a database of American triatomine species occurrence

Ceccarelli, Soledad; Balsalobre, Agustín; Medone, Paula; Cano, María Eugenia; Gonçalves, Rodrigo Gurgel; Feliciangeli, D.; Vezzani, Darío; Wisnivesky‐Colli, Cristina; Gorla, David Eladio; Martí, Gerardo A.; Rabinovich, Jorge E.

doi:10.1038/sdata.2018.71

Cited by 38 publications

(66 citation statements)

References 14 publications

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“…Rhodnius occurrences (i.e. locations were the species were found) were obtained from “DataTri”, a database of American triatomine species occurrences [68]. Palm tree occurrences were obtained from the Global Biodiversity Information Facility (GBIF; downloaded in October 2018) using the “gbif” function of the “dismo” R package [69].…”

Section: Methodsmentioning

confidence: 99%

Co-occurrence or dependence? Using spatial analyses to explore the interaction between palms and triatomines (Chagas disease insect vectors)

Calderón

González

2019

Preprint

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BackgroundTriatomine kissing bugs are responsible for the vectorial transmission of the parasite Trypanosoma cruzi, etiological agent of Chagas disease, a zoonosis affecting 10 million people and with 25 million at risk of infection. Triatomines are associated with particular habitats that offer shelter and food. Several triatomine species of the Rhodnius genus have close association with palm crowns, where bugs can obtain blood from the associated fauna. The Rhodnius - palm interaction has been reported in several places of Central and South America. However, the association in the distributions of Rhodnius species and palms has not been quantitatively determined.Methodology/Principal FindingsBroad distributions of eight Rhodnius species and 16 palm species with Rhodnius-infestation reports were estimated using Ecological Niche Models. Rhodnius species distributions in their total range were compared to their distributions in areas with palms. Rhodnius species presence was found to be higher in areas with palms. However, that tendency notoriously depended on palm species. Rhodnius species presence increased several times in areas with particular palm species. Moreover, a possible relationship was found between Rhodnius and palm species richness, indicating the Amazon region as the convergent region where several Rhodnius and palm species intersected. Finally, palm distribution was evaluated as predictor of Rhodnius species distributions, but their inclusion in the distributions models did not improve their performance.Conclusions/SignificanceThe distributions of some Rhodnius and palm species showed a high spatial association, which can be based on species interaction or niche similarity. Based on distribution convergence, the Amazon region appear to be the origin of the Rhodnius-palm association. The direct relationship between palms and Rhodnius species richness could be based on the habitat heterogeneity offered by different palm species. Despite spatial association, palm presence would not be a relevant predictor of Rhodnius species distributions in comparison to other environmental variables. Inclusion of other input data as hosts’ distribution could help to increase model predictability.Author summaryThe infestation of palms with Rhodnius genus kissing bugs (Chagas disease vectors) is important from the public health perspective, since insects living in palms can infest nearby houses. The migration of these bugs to households could threaten vector control programs since reinfestation of treated dwellings can occur. Association between Rhodnius and palms species distributions has been previously suggested but never quantitatively determined. The strong association between one palm species and one Rhodnius species can be used as a factor to predict the presence of Rhodnius bugs in definite areas. In this study, we estimated by models the distributions of eight Rhodnius species and 18 Rhodnius-infested palm species. Rhodnius distributions models showed a biased presence toward areas with certain palm species. That specific association was very strong in some cases; however, the presence of associated palm species was used in Rhodnius distributions models, but that did not improve the predictability of the models. Palm presence appear to be not essential for the Rhodnius current distribution because they could inhabit other habitats; but that association could be relevant to the Rhodnius evolutionary and biogeographic history.

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Section: Methodsmentioning

confidence: 99%

Co-occurrence or dependence? Using spatial analyses to explore the interaction between palms and triatomines (Chagas disease insect vectors)

Calderón

González

2019

Preprint

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“…Studies have started to investigate the impact of resistance in certain situations 3,4 but a full understanding of impact requires comprehensive quantification of resistance. To quantify the factors that influence vector control, data from vector populations are required and a number of vector databases are already available for species distributions, infection prevalence, and bionomic parameters [5][6][7][8][9][10][11][12] . A database for insecticide resistance in malaria vectors, that allows users to download analysis-ready datasets, is vital so that the impact of levels of resistance found in wild populations on malaria transmission can be assessed.…”

Section: Background and Summarymentioning

confidence: 99%

Analysis-ready datasets for insecticide resistance phenotype and genotype frequency in African malaria vectors

Moyes¹,

Wiebe²,

Gleave

et al. 2019

Preprint

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The impact of insecticide resistance in malaria vectors is poorly understood and quantified. Here a series of geospatial datasets for insecticide resistance in malaria vectors are provided so that trends in resistance in time and space can be quantified and the impact of resistance found in wild populations on malaria transmission in Africa can be assessed. Data are also provided for common genetic markers of resistance to support analyses of whether these genetic data can improve the ability to monitor resistance in low resource settings. Specifically, data have been collated and geopositioned for the prevalence of insecticide resistance, as measured by standard bioassays, in representative samples of individual species or species complexes. Data are provided for the Anopheles gambiae species complex, the Anopheles funestus subgroup, and for nine individual vector species. In addition, allele frequencies for known resistance associated markers in the Voltage-gated sodium channel (Vgsc) are provided. In total, eight analysis-ready, standardised, geopositioned datasets encompassing over 20,000 African mosquito collections between 1957 and 2017 are provided.

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“…Of these, 53 municipalities have reported presence of palm-infesting triatomines (e.g. R. pallescens, R. prolixus and Triatoma dimidiata [12][13][14][15]) and Chagas disease cases (source: SIVIGILA); also, oil palm cultivated area in these municipalities has increased steadily, with a growth of 116% from 2007 to 2016 [9].…”

Section: Introductionmentioning

confidence: 99%

Deltamethrin resistance in Chagas disease vectors colonizing oil palm plantations: implications for vector control strategies in a public health-agriculture interface

et al. 2020

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Background: Triatomine bugs are responsible for the vectorial transmission of the parasite Trypanosoma cruzi, etiological agent of Chagas disease, a zoonosis affecting 10 million people and with 25 million at risk of infection. Several triatomine species of the genus Rhodnius have been found inhabiting palm crowns where insects can find shelter in leaves axils and blood from palm-associated vertebrates. Rhodnius prolixus insects have been collected in oil palms in Colombia, and high T. cruzi infection rates were found. Since pest control is carried out in oil palm plantations, continuous exposure to insecticides could be occurring in these triatomines. Some insecticides suggested for pest control in oil palm plantations are also recommended for triatomine control in human dwellings. In this study, our objective was to assess if triatomines inhabiting oil palms exhibit resistance to deltamethrin, an insecticide used for vector control. Methods: Rhodnius prolixus nymphs were sampled in oil palms located in Tauramena, Colombia. To determine deltamethrin resistance, biological and biochemical assays were carried out on fifth-instar nymphs from the F1 generation. For biological assays, pure and commercial deltamethrin were used, and in biochemical assays, activities of detoxifying enzymes related to pyrethroid resistance, such as oxidases, esterases and transferases, were quantified. Results: Deltamethrin lethal dosage 50 and 90 in R. prolixus from oil palms was significantly higher than in those from a susceptible colony suggesting possible deltamethrin resistance. Moreover, mortality with commercial deltamethrin was very low in insects from oil palms. In biochemical assays, the activity of evaluated detoxifying enzymes was significantly higher in R. prolixus from oil palms than in those from the susceptible colony. Conclusions: Possible deltamethrin resistance found in R. prolixus insects from oil palms could threaten traditional vector control strategies in urban settings if insecticide-resistant triatomines can migrate from oil palms plantations. In palm oil producer countries such as Colombia, the oil palm plantations are growing constantly during the last years. We suggest that pest control strategies in oil palm crops should include triatomine surveillance and toxicological monitoring, especially in zones with several Chagas disease cases.

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DataTri, a database of American triatomine species occurrence

Cited by 38 publications

References 14 publications

Co-occurrence or dependence? Using spatial analyses to explore the interaction between palms and triatomines (Chagas disease insect vectors)

Co-occurrence or dependence? Using spatial analyses to explore the interaction between palms and triatomines (Chagas disease insect vectors)

Analysis-ready datasets for insecticide resistance phenotype and genotype frequency in African malaria vectors

Deltamethrin resistance in Chagas disease vectors colonizing oil palm plantations: implications for vector control strategies in a public health-agriculture interface

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