Revised New World bioregions and environmental correlates for vectors of Chagas disease (Hemiptera, Triatominae).
Acta Trop
; 249: 107063, 2024 Jan.
Article
de En
| MEDLINE
| ID: mdl-37944838
ABSTRACT
The subfamily Triatominae includes a group of hematophagous insects, vectors of the parasite Trypanosoma cruzi, which is the etiological agent of Chagas disease, also known as American trypanosomiasis. Triatomines occur in the Old and New World and occupy diverse habitats including tropical and temperate areas. Some studies suggest the distributions of triatomines group into three or four regions. This study objectively determined bioregions focused specifically on New World Triatominae, using clustering and ordination analysis. We also identified indicator species by bioregion and investigated relationships among bioregions and environmental variables using redundancy analysis and multivariate regression trees. We delineated seven bioregions specific to Triatominae and linked each with indicator species. This result suggests more biogeographical structure exists than was revealed in earlier studies that were more general, subjective, and based on older taxonomic and distributional information. Precipitation, elevation, and vegetation were important variables in the delimitating bioregions. This implies that more detailed study of how these factors influence triatomine distributions could benefit understanding of how Chagas disease is spread.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Trypanosoma cruzi
/
Triatominae
/
Maladie de Chagas
Limites:
Animals
Langue:
En
Journal:
Acta Trop
/
Acta trop.
/
Acta tropica
Année:
2024
Type de document:
Article
Pays d'affiliation:
Mexique
Pays de publication:
Pays-Bas