Ram, M., Vasavada, D., Tikadar, S., Jhala, L.S., Zala, Y. and Meena, V. (2023). Motion and exercise of endangered Asiatic lions in relation to land-use, season and group traits. Journal of Zoology, vol. 319, pp. 23-31. https://doi.org/10.1111/jzo.13025
The Asiatic lions are unfold throughout ~30000 km2 within the Saurashtra area of the Gujarat state in India, collectively often called the Asiatic Lion Panorama. The panorama contains 5 protected areas (Gir Nationwide Park, Gir Wildlife Sanctuary, Paniya Wildlife Sanctuary, Mitiyala Wildlife Sanctuary, and Girnar Wildlife Sanctuary) and different pure forest patches. Because of the efficient conservation measures previously a long time with the help of native folks, the Asiatic lion inhabitants has proven a great enhance previously 20 years. The inhabitants has reached the mark of 674 as per the final estimation (June 2020). With the inhabitants enhance, the Asiatic lions additionally began occupying numerous habitats exterior the protected forest areas. Their dispersal exterior the protected areas has led to conservation and administration challenges. It is very important perceive the ecology of Asiatic lions to handle these challenges, particularly their actions and exercise. Moreover, their motion ecology has huge potential to tell administration and coverage selections with efficient conservation outcomes.
To grasp the points talked about above, a scientific examine by radio-telemetry was envisaged on Asiatic lions with the goals to know whether or not their motion and exercise differ with demographic parameters comparable to age, intercourse and group measurement and likewise whether or not the each day distances moved and the home-ranges of people differ inside and outdoors the protected areas. Subsequently, radio-collars that have been featured with three-axis accelerometer-based exercise sensors, mortality sensors, a programmable drop-off activation system, and a programmable GPS schedule which recorded the situation fixes have been deployed on 19 Asiatic lions. The knowledge was saved on-board and retrieved upon elimination/substitute of the radio-collar.
The examine revealed fascinating variations in each day distances lined (motion) and each day exercise patterns from acceleration sensors (exercise) in relation to season, group measurement, age and intercourse. It discovered a big distinction within the imply each day distances between men and women however not between grownup and sub-adult males. Females confirmed considerably much less exercise and motion in comparison with grownup males. Grownup males have been considerably extra lively than sub-adult males.
The examine additionally famous that the imply each day motion for grownup men and women ranging exterior protected areas was not totally different from these throughout the protected areas, however within the case of sub-adult males, the distinction was extra vital: their dwelling ranges have been bigger exterior the protected areas in comparison with these throughout the protected areas. The distinction in space-use exterior the protected areas was an artefact of long-distance forays by grownup and sub-adult men and women on sure days. The foraying distances confirmed a attribute sample for sub-adult males, grownup men and women. Furthermore, it’s nicely established that path choice, danger aversion and use of multi-use landscapes exterior protected areas are age-sex particular. Subsequently, the data output from this examine relating to the spatial and temporal nature of Asiatic lion actions exterior protected areas might be useful in danger evaluation, planning infrastructure tasks and designing conservation motion plans.
Dr. Mohan Ram, Gir Nationwide Park & Wildlife Sanctuary