Researchers at the Indian Institute of Science (IISc) in Bengaluru have recently conducted a study aiming to understand the effect of various environmental factors, including urbanisation, on the presence of the Peninsular Rock Agama or South Indian Rock Agama.
Peninsular Rock Agama: An Overview
The Peninsular Rock Agama (Psammophilus dorsalis), largely found in southern India, is a type of garden lizard identified by its distinct orange and black colouration. The size of these creatures is considerably large compared to other lizards. In order to maintain their body heat, they are dependent on external heat sources like warm rocks or sunlit spots.
Geographical Distribution of the Rock Agama
This unique species is primarily found in Asia, with a significant presence in India. Indian regions like Tamil Nadu, Chhattisgarh, Kerala, Andhra Pradesh, Karnataka, and Bihar serve as the main habitats for these lizards.
Habitat & Life Cycle of the Rock Agama
Rock Agamas belong to the Precocial Species category. This implies that these creatures are relatively mature and mobile from the moment they are born or hatched, unlike many other species. In terms of heat generation, they are reliant on their surroundings, as they lack the ability to generate their own body heat.
Protection Status of the Rock Agama
As per the IUCN Red List, the Peninsular Rock Agama is currently listed as a species of ‘Least Concern’. There is no particular mention of them in CITES or Wildlife Protection Act 1972, suggesting they are not considered seriously threatened at present.
What does the Recent Study Reveal?
The study carried out by IISc provides significant insights about the Rock Agama’s relationship with its environment. The presence of Rock Agamas can reflect the temperature changes in different city parts, as they are sensitive to warmth. Their population density can also show alterations in the food chain.
As these lizards are insectivorous and serve as a food source for raptors, snakes, and dogs, their numbers are directly proportional to the availability of insects. Therefore, their presence or absence can indicate changes in the insect population, an important component of a healthy ecosystem providing services like pollination.
In essence, this makes the Peninsular Rock Agama an excellent model system for understanding the intricate details of its habiting ecosystem and wider environmental changes. The study helps in capturing these associations and drawing meaningful conclusions from them.
Source: TH
