The capybaras are quite common in the green areas of the capital of Paraná State, which include lakes and rivers within its boundaries. This study aimed to analyze the home range of a capybara population in one of these areas, the Tingui Park. The direct records of animal presence and some traces left by them in the studied area, as well as information regarding the social behavior of the species were recorded. The geographic coordinates of the recorded data were plotted on the Tingui Park map. The results showed that capybaras used the whole length of the park, however, there was a higher concentration of views, feces and marking territory in the northern region of the park, indicating that as the area of greatest use by capybaras. As for the behavior, the results showed instances of conflicts between the animals that may be related to competition for territory.

ABSTRACTThe study aimed to investigate the effects of water and salt stress on seed germination of Petiveria alliacea, as well as to define the limits of tolerance of the species to these stresses. The seeds were subjected to osmotic agents NaCl, CaCl2 and PEG in the potential 0; -0.1; -0.2; -0.3; -0.4; -0.5; -0.6; -0.7; -0.8; -0.9 and -1.0 MPa at a constant temperature of 25˚C and a photoperiod of 12 hours, with daily assessments for 30 days. The variables studied were germination percentage, germination velocity index, middle fear germination, synchronization index and relative frequency of germination. The seeds of P. alliacea under osmotic stress had lower percentage and speed of germination with the reduction of the the osmotic potential, especially with CaCl2. At more negative osmotic potentials than -0.4; -0.5 and -0.7 MPa, respectively in the CaCl2, NaCl, and PEG agents, the germination does not occur. The distribution pattern of the relative frequency increased the several modalities, , the average time of germination and the germination index of synchronization with the reduction of osmotic potential.