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Knowing the abundance of larger carnivores is critical for their conservation management. However, direct assessment of carnivore numbers is often difficult, expensive and time‐consuming, leaving indirect sampling as a valid and feasible alternative. Indirect census techniques have proved to be cost‐effective, repeatable and objective. We therefore estimated the numbers of six larger carnivore species in a relatively small area in northern South Africa, comparing three indirect sampling methods based on track counts and measurements: (i) a qualitative approach, whereby individuals were subjectively identified by comparing differences in track measurements; (ii) a quantitative approach using the strong linear correlation of track density with carnivore density found in other studies; and (iii) a quantitative approach applying repeated measures analysis of variance and post‐tests to the track measurement data, in order to test statistically for differences in track sets. All three methods provided similar results that appear to be reasonable and which might be an indication of the real number of larger carnivores that occur in the study area. These results support the reliability of indirect estimates of larger carnivore numbers based on tracking data, which is promising for future research and conservation efforts involving these animals.

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This study hypothesized that permanently frustrated, appetitive-foraging behavior caused the stereotypic pacing regularly observed in captive carnivores. Using 2 adult female snow leopards (Uncia uncia), solitarily housed in the Zurich Zoo, the study tested this hypothesis experimentally with a novel feeding method: electronically controlled, time-regulated feeding boxes. The expected result of employing this active foraging device as a successful coping strategy was reduced behavioral and physiological measures of stress, compared with a control-feeding regime without feeding boxes. The study assessed this through behavioral observations and by evaluating glucocorticoid levels noninvasively from feces. Results indicated that the 2 snow leopards did not perform successful coping behavior through exercising active foraging behavior or through displaying the stereotypic pacing. The data support a possible explanation: The box-feeding method did not provide the 2 snow leopards with the external stimuli to satisfy their appetitive behavioral needs. Moreover, numerous other factors not necessarily or exclusively related to appetitive behavior could have caused and influenced the stereotypic pacing.

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