Fig 1.
Eleven study sites, grouped into four study areas in Southern Chile, between latitude 39°-45° S. Area 1, represents an Andean foothill ecosystem (1:Liquiñe, 2:Neltume, 3:Choshuenco, 4:Todos los Santos); area 2, represents a marine coastal ecosystem (5:Maullín, 7:Puyuhuapi, 8:Puerto Cisnes, 9:Rio-Cisnes); area 3, represents Southern Andean mountain valleys (6:Palena, 10:Rio-Cisnes-Alto); area 4, represents an island (11:Magdalena Island). Red: High degree of presence human-domestic cat. Orange: Medium degree of presence human-domestic cat. Green: Low degree of presence human-domestic cat.
Fig 2.
Effects of landscape variables on seroprevalence.
A) Observed seroprevalence in mink and otter by study site. B) Observed seroprevalence by degree of presence of domestic cat. C) Observed seroprevalence by habitat. * Number above bars indicate sample size. Y axis show mean seroprevalence.
Fig 3.
Variable importance analysis performed using random forest.
The set of four categorical variables (age, species, habitat type, sex) and two continuous variables (human presence and cat density) used for classification the seropositivity to Toxoplasma gondii. Variables are ordered by their importance from top to bottom as estimated by the random forest model and denoted using an Gini index ranging from 0 to 100.
Fig 4.
Land cover change and Toxoplasma gondii reports.
Positive (red crosses) and negative (white crosses) reports of T. gondii in wildlife compared with vegetation change represented in the second principal component of the EVI 2002 and 2012. Change was denoted as areas of vegetation gain (green) and stability (light blue), and considerable vegetation loss (dark blue).
Table 1.
Seroprevalence of Toxoplasma gondii.
Data from 11 study sites with varying degrees of domestic cat presence, (NS = Not samples).