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Co-occurrence or dependence? Using spatial analyses to explore the interaction between palms and Rhodnius triatomines

BACKGROUND: Triatomine bugs are responsible for the vectorial transmission of the parasite Trypanosoma cruzi, the 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 shelt...

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Autores principales: Calderón, Johan M., González, Camila
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7178562/
https://www.ncbi.nlm.nih.gov/pubmed/32321545
http://dx.doi.org/10.1186/s13071-020-04088-0
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author Calderón, Johan M.
González, Camila
author_facet Calderón, Johan M.
González, Camila
author_sort Calderón, Johan M.
collection PubMed
description BACKGROUND: Triatomine bugs are responsible for the vectorial transmission of the parasite Trypanosoma cruzi, the 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 genus Rhodnius have a close association with palm crowns, where bugs can obtain microclimatic stability and 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 explicitly determined. METHODS: Niches of Rhodnius and palm species with reports of Rhodnius spp. infestation were estimated by minimum volume ellipsoids and compared in the environmental and the geographical space to identify niche similarity. Rhodnius spp. niche models were run with the palm distributions as environmental variables to determine if palm presence could be considered a predictor of Rhodnius spp. distributions, improving model performance. RESULTS: Niche similarity was found between all the studied Rhodnius and palm species showing variation in niche overlap among the involved species. Most of the areas with suitable conditions for Rhodnius species were also suitable to palm species, being favorable for more than one palm species in the majority of locations. Performance was similar in Rhodnius niche models with and without palm distributions. However, when palm distributions were included, their contribution to the model was high, being the most important variable in some Rhodnius spp. CONCLUSIONS: To our knowledge, this is the first time that the distributions of Rhodnius and palm species were compared on a large scale and their spatial association explicitly studied. We found spatial association between Rhodnius and palm species can be explained because both organisms shared environmental requirements, and most of the areas with suitable conditions for Rhodnius species were also suitable to several palm species. Rhodnius presence would not be restricted to palm presence but the zones with palm presence could be more suitable for Rhodnius spp. presence. [Image: see text]
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spelling pubmed-71785622020-04-24 Co-occurrence or dependence? Using spatial analyses to explore the interaction between palms and Rhodnius triatomines Calderón, Johan M. González, Camila Parasit Vectors Research BACKGROUND: Triatomine bugs are responsible for the vectorial transmission of the parasite Trypanosoma cruzi, the 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 genus Rhodnius have a close association with palm crowns, where bugs can obtain microclimatic stability and 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 explicitly determined. METHODS: Niches of Rhodnius and palm species with reports of Rhodnius spp. infestation were estimated by minimum volume ellipsoids and compared in the environmental and the geographical space to identify niche similarity. Rhodnius spp. niche models were run with the palm distributions as environmental variables to determine if palm presence could be considered a predictor of Rhodnius spp. distributions, improving model performance. RESULTS: Niche similarity was found between all the studied Rhodnius and palm species showing variation in niche overlap among the involved species. Most of the areas with suitable conditions for Rhodnius species were also suitable to palm species, being favorable for more than one palm species in the majority of locations. Performance was similar in Rhodnius niche models with and without palm distributions. However, when palm distributions were included, their contribution to the model was high, being the most important variable in some Rhodnius spp. CONCLUSIONS: To our knowledge, this is the first time that the distributions of Rhodnius and palm species were compared on a large scale and their spatial association explicitly studied. We found spatial association between Rhodnius and palm species can be explained because both organisms shared environmental requirements, and most of the areas with suitable conditions for Rhodnius species were also suitable to several palm species. Rhodnius presence would not be restricted to palm presence but the zones with palm presence could be more suitable for Rhodnius spp. presence. [Image: see text] BioMed Central 2020-04-22 /pmc/articles/PMC7178562/ /pubmed/32321545 http://dx.doi.org/10.1186/s13071-020-04088-0 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research
Calderón, Johan M.
González, Camila
Co-occurrence or dependence? Using spatial analyses to explore the interaction between palms and Rhodnius triatomines
title Co-occurrence or dependence? Using spatial analyses to explore the interaction between palms and Rhodnius triatomines
title_full Co-occurrence or dependence? Using spatial analyses to explore the interaction between palms and Rhodnius triatomines
title_fullStr Co-occurrence or dependence? Using spatial analyses to explore the interaction between palms and Rhodnius triatomines
title_full_unstemmed Co-occurrence or dependence? Using spatial analyses to explore the interaction between palms and Rhodnius triatomines
title_short Co-occurrence or dependence? Using spatial analyses to explore the interaction between palms and Rhodnius triatomines
title_sort co-occurrence or dependence? using spatial analyses to explore the interaction between palms and rhodnius triatomines
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7178562/
https://www.ncbi.nlm.nih.gov/pubmed/32321545
http://dx.doi.org/10.1186/s13071-020-04088-0
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