Figure 1.
Distribution of house-specific infestation by T. infestans according to timed-manual collections in Pampa del Indio.
A: Map of the study area with inhabited houses, villages and infestation status. B: domestic and peridomestic prevalence of infestation according to village; diamond symbols denote the percentage of houses inhabited by Toba families in each village; numbers above bars indicate the number of inhabited houses in each village, whiskers indicate ±1 standard deviation. Village acronyms: 10 M, 10 de Mayo; CT, Campo Los Toros; CO, Colonia Ombú; SV-CV, El Salvaje- Los Ciervos; FB, Fortín Brown; H, La Herradura; LL, La Loma; BV, Las Bravas; CHU, Las Chuñas; RI, Santa Rita; LUG, Santos Lugares, and 3L, Tres Lagunas.
Figure 2.
Typical structures of rural Pampa del Indio.
A: Domicile and part of peridomicile exhibiting a variety of roof materials (corrugated metal and tarred-cardboard sheets, and thatch). B: A domicile, partly with mud-stick walls, partly with walls made of brick laid on mud, and a corrugated metal roof. C: A mud ‘nidero’ where chickens and other poultry nest.
Figure 3.
Prevalence of infestation and median abundance of T. infestans according to ecotope and ethnic group.
Data corresponds to timed-manual collections. Numbers above bars indicate the number of sites examined for infestation within each category. Whiskers indicate ±1 standard deviation.
Figure 4.
Abundance of T. infestans per site in infested sites according to their ecotope.
Bug abundance determined by timed-manual collections. Light gray symbols indicate median abundance; boxes, interquartile range; whiskers, values adjacent to interquartile range; dark symbols, outside values.
Table 1.
Use of building materials and refuge availability (mean ± standard deviation, SD) according to ecotope.
Figure 5.
Prevalence of infestation with T. infestans according to refuge availability among the main infested ecotopes.
Numbers above points indicate the number of sites inspected in each category. Whiskers indicate ±1 standard deviation.
Table 2.
Domestic hosts of each type per inhabited house compound according to resident ethnic group.
Table 3.
Relative importance and effects of variables in relation to site infestation and abundance of T. infestans.
Figure 6.
Spatial analysis of site-specific infestation by T. infestans among the main infested ecotopes.
Only domiciles, kitchens, storerooms, chicken coops, and ‘nideros’ are considered. C.E.: confidence envelope according to the null model (random labeling) under a homogeneous Poisson process.