of its range (i.e., the utility density distribution, Powell (2000)). The
bandwidth (h) chosen for fixed kernel was 15 m, which we considered
as a good approximation of the perception radius (Powell
2000) of this species (see also Montgomery and Sunquist 1975).
Scaling factor used was 108 and raster cell size was 10 due to the
small areas under analysis.
Interpretation of aerial photographs provided by Instituto de
Estudos Socioambientais do Sul da Bahia (unpublished data) was
used as an initial source for the land cover of the region. However,
this method did not discriminate cabrucas from secondary logged
forest, due to similarities in canopy structure between these two
vegetation types. We therefore modified the original maps using
field observations in order to delimitate more accurately the extent
of cabrucas in the study site. The home ranges (MCP and kernel)
were clipped from the land cover map using the intersect function
from ArcMap 9.2. We then calculate the proportion of cabruca
falling within each home range using the resulting shape file