CITIZEN MATTERS (Bangalore, India) 14 September 10 A 'bloodsucker' in your backyard (Vikram Nanjappa)
How many of us realise that they might be a bloodsucker at large in our gardens? Don't panic, this is just our Common Garden Lizard (Calotes versicolor) which most of us mistakenly call ‘chameleon'. During the breeding season the head, shoulders and parts of the foreleg of the males turns bright scarlet and this is how they have acquired this rather 'derogatory' name - Bloodsucker. The Chameleon is a totally different species, well-known for its ability to change colour to match its surroundings.
The Common Garden Lizard is the most common Agamid lizard in India. An Agamid is a family or group of lizards. The Agamids can be differentiated from other lizards by their teeth. In general appearance the Agamids bear a close resemblance to the Iguana.
The Bloodsucker or Common Garden Lizard is widely distributed from the dry deserts to thick forests. In cities like Bangalore, it is found in gardens, hedges and scrub. I see one quite regularly from my verandah which overlooks a small patch of garden.
It is arboreal and diurnal in nature, which means that it has evolved to move on trees and is active during the day time. Not surprisingly it is an agile climber and can move with speed and dexterity when required. Most of the time we fail to notice it as it is a past master at making itself inconspicuous. It manages to do so by remaining immobile. Its colouration also helps it in blending into the background. When noticed it has a tendency to slide to the back of the branch on which it is sitting.
The Bloodsucker is a great help in maintaining the health of your garden plants as it feeds mainly on insects and thus keeps the pest population under control. Ants are another favorite and together with other insects form a majority of its diet. Occasionally it breaks the monotony of its diet by taking small birds, nestlings, frogs and other small animals. Studies have shown that it sometimes resorts to cannibalism, though such behaviour is quite rare.
The next time you pass a garden, do stop to take a good look at the various branches and stalks, glance up at any wall or branch and you just might come face to face with the Bloodsucker and don't be afraid as he is harmless unless, of course, you happen to be a rival male!
A 'bloodsucker' in your backyard