Figure 1: A still preserved portion of grazed grasslands, interspersed with solitary Araucaria trees, forest patches along
creeks. Near State Park Tainhas, 5.9.2012, photo by J.Kollmann.
Figure 2: The excursion group, consisting of German guest scientists and UFGRS undergraduate and postgraduate
students, receives information on geology and vegetation of the area by Prof. G.Overbeck. 5.9.2012, photo by V.Pillar.
Figure 3: Grass biomass has dried out during the winter and is highly flammable in this condition. Burning grasslands
were observed throughout the area. 5.9.2012, J.-M. Hermann
Figure 4: In the recent decade, extensive cattle grazing could no longer compete economically with cultivation of exotic
trees, mostly Pinus elliotii var. elliotti. Legal prohibition of pasture burning has further lessened attraction of cattle
farming. 5.9.2012, V.Pillar
Figure 5: Another recent arrival in the region is cultivation of arable crops: potatoes, cabbages, maize. This freshly tilled
new field is in the buffer zone of the National Park Aparados da Serra. 6.9.2012, J.Kollmann
Figure 6: While some native grassland species can re-establish spontaneously following logging of pine plantations….
Figure 7: …the consequences of arable land use are less clear. Grassland species are partly seeded and partly establish
spontaneously in this former broccoli field. Both species groups include non-native species: C3 grasses and arable weeds
from Europe. Both photos near National Park Aparados da Serra, 6.9.2012, photo by J.Kollmann.
Figure 8: Unexpected challenges on the road….5.9.2012, photo by V.Pillar.
Figure 9: …and in State Park Tainhas. Grazing has been mostly excluded from this Park for several years – when fire
spread from the surrounding pastures, even joint efforts could not stop it from spreading over large areas of the Park.
5.9.2012, photo by J.Kollmann.