Fig 1.
French Guiana and the biodiversity of its triatomine community.
(A) French Guiana is partitioned into five geomorphologic landscapes: the Coastal Plain (CP), the Northern Chain (NC), the Central Massif (CM), the Inini-Camopi chain (IC), and the Southern chain. Black circles stand for the 22 field sites where triatomines were captured. A list of these sites with their GPS coordinate is provided in S1 Table. (B) The 731 adult triatomines captured across the four sampled landscapes belonged to 8 species. The colour legend used to refer to each of these species (in all figures of the paper) appears at the bottom of Fig 1A.
Fig 2.
Geographical distribution of the biodiversity and infection of triatomine species in French Guiana.
(A) Biodiversity of triatomines. Numbers appearing inside circles refer to the average number of individuals collected per night for each species. A, D and E and refer to the overall Abundance (per night of collection), Diversity and Equitability of the vector community. (B) Infection of the four main species of triatomines. Numbers appearing above each bar refer to the number of bugs infected with T. cruzi and the number of bugs tested for infection. The colour legend used to refer to each triatomine species is the same as in Fig 1.
Table 1.
Geographical distribution of the abundance and diversity of triatomine species.
Table 2.
Geographical distribution of the infection of the four main triatomine species by T. cruzi.
Fig 3.
Seasonal variation in the abundance and infection of triatomine species in French Guiana.
(A) Biannual variations in the abundance of triatomine species. The entire community appear in black (line and squares) and the other colours stand for the 4 main triatomine species: blue line and diamonds (P. geniculatus), red line and stars (R. pictipes), green line and triangles (P. lignarius), purple line and circles (E. mucronatus). (B) (Absence of) Seasonal variation in the overall rate of infection of triatomines.
Table 3.
Seasonal variations in the abundance of the triatomine community.
Fig 4.
Spatial and temporal variations of the Force Of Infection (FOI) by T. cruzi in French Guiana.
(A) Variations in the FOI by T. cruzi across the four landscapes ordered with respect to the observed level of triatomine biodiversity as measured by their D value (see Fig 2A). (B) Variations in the FOI by T. cruzi across the twelve months of the year. In Fig 4A and Fig 4B, the variations of the FOI are expressed as a percentage of the overall annual FOI. The colour legend used to refer to each triatomine species is the same as in Fig 1.