Co-Sleeping in Chamaeleo zeylanicus (India)

Co-Sleeping in Chamaeleo zeylanicus (India)

by Alex Negro Beobachtungen

A small publication recently focussed on observations of chameleons in India. Four researchers were travelling in the state of Karnataka in India and repeatedly observed chameleons at night. On a good 20 occasions, they observed single sleeping animals. However, two observations stood out from the others.

In July 2021, they observed two Chamaeleo zeylanicus sleeping less than five centimetres apart on the same branch in Narasimha Betta. A similar picture presented itself to them a little later in July of the same year in Devarayana Durga, 53 km away from the first observation. The chameleons were located in well vegetated hilly scrubland interspersed with rocks.

Unfortunately, the authors were unable to determine the sexes of the animals. As the observations were both made during the monsoon, the reproductive season of the Indian chameleon, they assume mate guarding. This involves a male ‘guarding’ a mated female for several days in order to increase his reproductive success.

Co-Sleeping in the Indian Chameleon Chamaeleo zeylanicus Laurenti, 1768
Nitya P. Mohanty, Krishna Murthy, B.R. Ansil, Ashwin Viswanathan
Herpetology Notes 2024, 17: 679-681.
DOI: not available

Photo: Sleeping Chamaeleo zeylanicus, photographed byDr. Raju Kasambe, Creative Commons Attribution-Share Alike 4.0 International

The Indian Chameleon in Solapur (India)

The Indian Chameleon in Solapur (India)

by Alex Negro Verbreitung Science

It has long been known that the Indian chameleon occurs in Maharashtra. A recently published survey study has even found evidence of it in an area near Solapur that is covered only with grass and bushes.

The area studied is a 15 km² area of semi-arid grassland around a site earmarked for an airport at an altitude of 450 to 500 metres. The nearest village is Boramani, a small town just outside the city of Solapur in the state of Maharashtra in western India. For one year, about half of the grassland was surveyed four times a month for the presence of reptiles. Squares of 50 metres x 50 metres were laid out, each at least 300 metres apart. Each observation period consisted of five hours and only observations with the naked eye.

During the study period, 888 individuals of 14 different reptile species were recorded. Of these, more than 300 were Sitana laticeps, a fan-throated lizard. Among the species found were two Chamaeleo zeylanicus. The activity of the lizards increased from March, stabilised during the monsoon season in June-July and then declined again from August.

The authors argue in favour of protecting the grassland area due to the existing biodiversity. This should prevent the construction of the airport and thus the disappearance of the habitat.

Ecology of lizards in an ecologically significant semi-arid grassland patch near Solapur, Maharashtra, India
Mahindrakar Yogesh Y., Waghmare Akshay M., Hippargi Rajshekhar V.
International Journal of Zoological Investigations 9 (2) 2023, pp. 210-223
DOI: 10.33745/ijzi.2023.v09i02.022

New distribution data on Chamaeleo zeylanicus

New distribution data on Chamaeleo zeylanicus

by Alex Negro Verbreitung Science

A biologist from India has published findings of the Indian Chameleon (Chamaeleo zeylanicus) that narrow down the distribution of the species more precisely. The Aravalli Mountains are located about 150 km west of the Indian capital New Delhi in northwest India. It runs for 670 km in a south-westerly direction, passing through three different states: Haryana, Rajasthan, and Gujarat. Until now, the Indian chameleon was thought to occur in the south and centre of Rajasthan, but was not common in the north, east, or west. So far, no findings had been documented from Haryana at all.

The biologist describes six observations of the Indian Chameleon between 2015 and 2022, during which Chamaeleo zeylanicus was seen four times in the Sariska Tiger Reserve and once each at Manesar and Damdama lakes, at altitudes between 223 and 476 m asl. The former is in northern Rajasthan, the two lakes not far from it in southern Haryana. The forest of the site in the Sariska Tiger Reserve is dominated by Indian lungwort (Adhatoda vasica), prairie mugwort (Parthenium integrifolium) and mesquite tree (Prosopis juliflora). The chameleons found in Haryana were found on roadsides with carira (Capparis decidua) and mesquite trees.

New distributional records of Asian Chameleons (Chamaeleo zeylanicus Laurenti 1768), from the Northern Aravali Hill range, India
Debaprasad Sengupta
Reptiles & Amphibians 30 (1), 2023: pp. 1-2
DOI: 10.17161/randa.v30i1.18614

The Indian Chameleon in Jhalawar (India)

The Indian Chameleon in Jhalawar (India)

by Alex Negro Science

Three scientists from India have recently published a survey of reptile and amphibian occurrences. The Jhalawar study area is located at the southernmost tip of the state of Rajasthan in northwest India. It is located on the edge of the Malwa Plateau, a volcanic highland. The area lies well to the southwest of the Ganges River, which is generally considered the distribution limit of the Indian Chameleon (Chamaeleo zeylanicus). The climate is divided into a long summer season and a shorter winter, which lasts from October to February. During the summer, temperatures above 45°C are common, while in winter temperatures can drop to as low as 1°C.

The three researchers were on site for about six hours each for 70 days. To search for reptiles and amphibians, they rummaged through loose soil as well as the foliage layer and visually searched for animals in parallel. 45 different species of reptiles and amphibians were found. Chamaeleo zeylanicus was documented for the first time in Rajasthan.

Herpeto-faunal diversity study: Analysis and critical observations from south-eastern Rajasthan, India
Yadav Vijay Kumar, Nama Krishnendra Singh, Sudhindran Rimal
Indian Journal of Ecology 49 (5), 2022: pp. 1581-1587
DOI: 10.55362/IJE/2022/3700