A reduction in ecological niche for Trypanosoma cruzi-infected triatomine bugs
Abstract Background Theory predicts that parasites can affect and thus drive their hosts’ niche. Testing this prediction is key, especially for vector-borne diseases including Chagas disease. Here, we examined the niche use of seven triatomine species that occur in Mexico, based on whether they are...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2019-05-01
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| Series: | Parasites & Vectors |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s13071-019-3489-5 |
| _version_ | 1818923526235619328 |
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| author | Guiehdani Villalobos Angela Nava-Bolaños José A. De Fuentes-Vicente Juan Luis Téllez-Rendón Herón Huerta Fernando Martínez-Hernández Maya Rocha-Ortega Ana E. Gutiérrez-Cabrera Carlos N. Ibarra-Cerdeña Alex Córdoba-Aguilar |
| author_facet | Guiehdani Villalobos Angela Nava-Bolaños José A. De Fuentes-Vicente Juan Luis Téllez-Rendón Herón Huerta Fernando Martínez-Hernández Maya Rocha-Ortega Ana E. Gutiérrez-Cabrera Carlos N. Ibarra-Cerdeña Alex Córdoba-Aguilar |
| author_sort | Guiehdani Villalobos |
| collection | DOAJ |
| description | Abstract Background Theory predicts that parasites can affect and thus drive their hosts’ niche. Testing this prediction is key, especially for vector-borne diseases including Chagas disease. Here, we examined the niche use of seven triatomine species that occur in Mexico, based on whether they are infected or not with Trypanosoma cruzi, the vectors and causative parasites of Chagas disease, respectively. Presence data for seven species of triatomines (Triatoma barberi, T. dimidiata, T. longipennis, T. mazzottii, T. pallidipennis, T. phyllosoma and T. picturata) were used and divided into populations infected and not infected by T. cruzi. Species distribution models were generated with Maxent 3.3.3k. Using distribution models, niche analysis tests of amplitude and distance to centroids were carried out for infected vs non-infected populations within species. Results Infected populations of bugs of six out of the seven triatomine species showed a reduced ecological space compared to non-infected populations. In all but one case (T. pallidipennis), the niche used by infected populations was close to the niche centroid of its insect host. Conclusions Trypanosoma cruzi may have selected for a restricted niche amplitude in triatomines, although we are unaware of the underlying reasons. Possibly the fact that T. cruzi infection bears a fitness cost for triatomines is what narrows the niche breadth of the insects. Our results imply that Chagas control programmes should consider whether bugs are infected in models of triatomine distribution. |
| first_indexed | 2024-12-20T02:10:50Z |
| format | Article |
| id | doaj.art-5d6ec858763746c397546a83af8c18bc |
| institution | Directory Open Access Journal |
| issn | 1756-3305 |
| language | English |
| last_indexed | 2024-12-20T02:10:50Z |
| publishDate | 2019-05-01 |
| publisher | BMC |
| record_format | Article |
| series | Parasites & Vectors |
| spelling | doaj.art-5d6ec858763746c397546a83af8c18bc2022-12-21T19:57:03ZengBMCParasites & Vectors1756-33052019-05-011211910.1186/s13071-019-3489-5A reduction in ecological niche for Trypanosoma cruzi-infected triatomine bugsGuiehdani Villalobos0Angela Nava-Bolaños1José A. De Fuentes-Vicente2Juan Luis Téllez-Rendón3Herón Huerta4Fernando Martínez-Hernández5Maya Rocha-Ortega6Ana E. Gutiérrez-Cabrera7Carlos N. Ibarra-Cerdeña8Alex Córdoba-Aguilar9Hospital General “Dr. Manuel Gea González”, Secretaría de SaludDepartamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de MéxicoInstituto de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Tuxtla GutiérrezInstituto de Diagnóstico y Referencia Epidemiológicos, Secretaría de SaludInstituto de Diagnóstico y Referencia Epidemiológicos, Secretaría de SaludHospital General “Dr. Manuel Gea González”, Secretaría de SaludHospital General “Dr. Manuel Gea González”, Secretaría de SaludCONACyT-Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud PúblicaDepartamento de Ecología Humana, Centro de Investigación y Estudios Avanzados del IPN (Cinvestav), Unidad MéridaDepartamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de MéxicoAbstract Background Theory predicts that parasites can affect and thus drive their hosts’ niche. Testing this prediction is key, especially for vector-borne diseases including Chagas disease. Here, we examined the niche use of seven triatomine species that occur in Mexico, based on whether they are infected or not with Trypanosoma cruzi, the vectors and causative parasites of Chagas disease, respectively. Presence data for seven species of triatomines (Triatoma barberi, T. dimidiata, T. longipennis, T. mazzottii, T. pallidipennis, T. phyllosoma and T. picturata) were used and divided into populations infected and not infected by T. cruzi. Species distribution models were generated with Maxent 3.3.3k. Using distribution models, niche analysis tests of amplitude and distance to centroids were carried out for infected vs non-infected populations within species. Results Infected populations of bugs of six out of the seven triatomine species showed a reduced ecological space compared to non-infected populations. In all but one case (T. pallidipennis), the niche used by infected populations was close to the niche centroid of its insect host. Conclusions Trypanosoma cruzi may have selected for a restricted niche amplitude in triatomines, although we are unaware of the underlying reasons. Possibly the fact that T. cruzi infection bears a fitness cost for triatomines is what narrows the niche breadth of the insects. Our results imply that Chagas control programmes should consider whether bugs are infected in models of triatomine distribution.http://link.springer.com/article/10.1186/s13071-019-3489-5Chagas diseaseNicheNiche centroidsTriatomine bugsTrypanosoma cruziCo-evolution |
| spellingShingle | Guiehdani Villalobos Angela Nava-Bolaños José A. De Fuentes-Vicente Juan Luis Téllez-Rendón Herón Huerta Fernando Martínez-Hernández Maya Rocha-Ortega Ana E. Gutiérrez-Cabrera Carlos N. Ibarra-Cerdeña Alex Córdoba-Aguilar A reduction in ecological niche for Trypanosoma cruzi-infected triatomine bugs Parasites & Vectors Chagas disease Niche Niche centroids Triatomine bugs Trypanosoma cruzi Co-evolution |
| title | A reduction in ecological niche for Trypanosoma cruzi-infected triatomine bugs |
| title_full | A reduction in ecological niche for Trypanosoma cruzi-infected triatomine bugs |
| title_fullStr | A reduction in ecological niche for Trypanosoma cruzi-infected triatomine bugs |
| title_full_unstemmed | A reduction in ecological niche for Trypanosoma cruzi-infected triatomine bugs |
| title_short | A reduction in ecological niche for Trypanosoma cruzi-infected triatomine bugs |
| title_sort | reduction in ecological niche for trypanosoma cruzi infected triatomine bugs |
| topic | Chagas disease Niche Niche centroids Triatomine bugs Trypanosoma cruzi Co-evolution |
| url | http://link.springer.com/article/10.1186/s13071-019-3489-5 |
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