| Abstract | dc.description.abstract | The distribution and habitat use by carnivores can be assessed by studying their tracks or feces. If these
methods are to be used confidently, they should not only unequivocally discriminate among species, but
should also render the same patterns of spatial distributions. We assessed the fulfillment of these requirements
with five carnivores inhabiting the Maulino forest of central Chile: Galictis cuja, Oncifelis guigna,
Pseudalopex culpaeus, Pseudalopex griseus, and Puma concolor. Fecal bile acid thin layer chromatographic
profiles were assessed, and shown to be species-specific, invariant within samples of a given individual and
among individuals of a given species, but consistently different across species. The spatial distribution of
feces in mixed stands of native forests and exotic pine plantations in the coastal Maule region of central Chile
was compared with the expected distribution according to habitat offer, and also with the expected
distribution based on earlier track records. The results revealed that Pseudalopex culpaeus makes extensive
use of pine plantations; Oncifelis guigna prefers native forests, and Pseudalopex griseus thrives in pine
plantations, native forests, and patches of native forest, in proportion to habitat availability. Results from scat
distribution were similar to those obtained by tracks records. Feces and tracks were thus useful indicators of
habitat use by carnivores, and could be used complementarily to study species with conservation problems. | en |
