Movement and activity of endangered Asiatic lions in relation to land-use, season and group characteristics

We studied the activity patterns and movement characteristics of 19 Asiatic lions (Panthera leo leo) monitored through satellite radio-collars equipped with activity sensors. We investigated the variations in the daily distance covered (movement) and the daily activity patterns from acceleration sensors (activity) in relation to season, group size, age and sex. We hypothesised that for the Asiatic lions: (1) the movement and activity should be variable in relation to demographic parameters (age, sex and social status) and (2) the land tenure characteristics, such as home range and daily distance moved, may be variable within and outside Gir PA (PA). Adult lions' mean daytime activity was 20.37 +/- 11.15, while the daily distance moved was 5.1 +/- 4.0 km. There was a significant difference in the mean daily distance between males and females, but none between adult and sub-adult males. Females showed significantly less activity and movement compared to adult males. Adult males were significantly more active than sub-adult males. Compared to within PA, the mean daily movement for adult males and females ranging outside PA was not different but more significant for sub-adult males. At the same time, the home ranges are larger outside PA compared to within PA. The difference in space use outside PA was an artefact of long distance forays by adult and sub-adult males and females on certain days. The foraying distances showed a characteristic pattern for sub-adult males, adult males and females. We recommend incorporating such intra-specific variation in movement behaviour due to age-sex and lions' life-history requirements in conservation planning. We further recommend a detailed investigation of resource and habitat use considering demographic variability for implementing management action for conserving Asiatic lions in multi-use landscapes.

Automated summary

This study examined the activity patterns and movement characteristics of 19 Asiatic lions through satellite radio-collars with activity sensors. The results showed that the lions' movement and activity varied based on age, sex, and social status. The study also found that land tenure characteristics influenced the lions' home range and daily distance moved. It is important to consider these variations in movement behavior and demographic factors in conservation planning.