Fascinating motion and exercise patterns of Asiatic lions in India – Journal of Zoology Weblog

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 many years with the help of native individuals, the Asiatic lion inhabitants has proven an excellent improve previously twenty years. The inhabitants has reached the mark of 674 as per the final estimation (June 2020). With the inhabitants improve, the Asiatic lions additionally began occupying various 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.

An imposing Asiatic lion male in its pure habitat within the Gir panorama throughout the summer season season. Photograph: Dr. Mohan Ram

To know the points talked about above, a scientific research via radio-telemetry was envisaged on Asiatic lions with the goals to know whether or not their motion and exercise fluctuate with demographic parameters comparable to age, intercourse and group measurement and likewise whether or not the every day distances moved and the home-ranges of people fluctuate inside and outdoors the protected areas. Due to this fact, 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/alternative of the radio-collar.

One of many radio-collared females which was collared as a part of a significant Asiatic lion radio-telemetry mission to observe the lions and their actions within the Gir panorama, Gujarat, India. Photograph: Dr. Mohan Ram
Utilizing state-of-the-art expertise and experience, the technical employees on the Gir Hello-Tech Monitoring Unit in Gujarat, India present important help for the conservation and safety of endangered Asiatic lions. Photograph: Dr. Mohan Ram

The research revealed fascinating variations in every day distances lined (motion) and every day exercise patterns from acceleration sensors (exercise) in relation to season, group measurement, age and intercourse. It discovered a big distinction within the imply every 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 energetic than sub-adult males.

The Gir Hello-Tech Monitoring Unit – a technology-driven scientific monitoring initiative which screens varied managerial segments within the Gir panorama. Photograph: Dr. Mohan Ram

The research additionally famous that the imply every day motion for grownup men and women ranging exterior protected areas was not completely different from these throughout the protected areas, however within the case of sub-adult males, the distinction was extra important: 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 effectively established that path choice, danger aversion and use of multi-use landscapes exterior protected areas are age-sex particular. Due to this fact, the information output from this research relating to the spatial and temporal nature of Asiatic lion actions exterior protected areas might be useful in danger evaluation, planning infrastructure initiatives and designing conservation motion plans.

Dr. Mohan Ram, Gir Nationwide Park & Wildlife Sanctuary

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