Abstract

We provide the rst systematic data on behavior and ecology ofAconaemys porteri. We usedtelemetry to monitor patterns of activity, resting locations, and range areas. Rock rat movements werestatistically similar during nighttime and daytime, implying no clear diurnal or nocturnal activity. Animalsused from 2 to 9 putative resting locations, but one was used more frequently. Rock rats showed relativelysmaller range areas and low-to-moderate spatial overlap with neighbors, compared to other rodent species.These results indicate thatA. porteriexhibit an intermediate level of sociality, compared to other octodontids.