About Agama atra Daudin, 1802
Social Grouping
This rather sociable agama species, Agama atra Daudin, 1802, is normally found in small groups or colonies.
Size and Dorsal Crest
It grows up to around 25 cm in length, with a thin dorsal crest that runs the full length of its body.
Body and Head Shape
It typically has a short, plump body, a thin tail, and a triangular head.
Breeding Male Head Coloration
During the breeding season, the heads of mature males turn bright blue.
Male Perching Behavior
Males also frequently sit on top of prominent rocks, making them a common sight in mountainous regions of South Africa.
Female and Juvenile Appearance
Females and juvenile Agama atra are a more uniform greyish-brown and are much shyer than breeding males.
Activity Period and Diet
These are active, diurnal lizards that normally hunt small insects including ants and termites.
Urban Adaptation
They sometimes adapt to living near urban areas and can even survive in rocky gardens.
Threat from Domestic Cats
However, growing dense populations of pet domestic cats in suburban areas have caused a decline in this species' population, as these introduced predators kill all agamas in their immediate local areas.
Natural Wild Predators
Natural wild predators of Agama atra include the fiscal shrike, various snakes, eagles, and larger reptiles.
Anti-Predator Hiding Behavior
When under attack, agamas hide and only return once the danger has passed.
Pet Keeping
Some Agama atra are kept as household pets, and generally have good relationships with their owners.
Colour Change Ability
This species has a limited ability to change body colour, though it cannot change colour to the same extent as chameleons; Agamidae, the family this species belongs to, is a sister group to chameleons.
Predator-Triggered Colour Shift
When a breeding-coloured male is approached by a potential predator, it will lie flat against a rock and abandon its bright breeding colours in favour of more cryptic, camouflaged colouration.
Dominant Male Territorial Displays
A dominant male usually occupies a high elevation point in its territory, and performs a pushup display and head nodding to warn off intruding individuals.
Natural Distribution Range
The natural distribution of Agama atra covers most of South Africa and Botswana, only excluding the sandy areas of South Africa's Northern Cape province, and parts of South Africa's Limpopo, Mpumalanga, and KwaZulu-Natal provinces.