Fig 1.
Timeline of diachronical succession of human population events and linked changes in vegetation cover, in State of Santa Catarina.
Fig 2.
Map of South America highlighting the study area that comprises the State of Santa Catarina.
Points indicate archaeological sites (Guarani sites in orange points and Southern-Jê sites in gray points) and stars are the floristic sample units.
Fig 3.
Ridgeline plot of smoothed density estimates of the probability of occurrence of Southern-Jê (gray) and Guarani (orange) archaeological sites in relation to environmental variables.
Green line width indicates variable importance to the model.
Fig 4.
a) Map of the probability of past Guarani distribution; b) Map of the probability of past Southern-Jê distribution; c) Map without scale of South America highlighted areas showed in a and b. These maps were created with ecological niche models that presented the lowest overfitting and the highest AUC values.
Fig 5.
Spatial partitioning between archaeological Southern-Jê and Guarani distribution.
Fig 6.
The redundancy analysis of species abundance and the probability of occurrence of Southern-Jê and Guarani archaeological sites.
Arrows represent maximum variation directions. a) Dots represent vegetation sampling units. b) Shows the species distribution. Polygons and colors indicate forest typologies in both figures.
Fig 7.
Relationship between tree species and the two past Amerindian groups (Guaraní and Southern-Jê).
These species were selected because they had ordination scores higher than 0.1 or lower than –0.1 in the RDA.