Snake foraging behaviour on the water source ecosystems within Malang, East Java.

Foraging behaviour of snake can be distinguished by their environments to be an aquatic, semi-aquatic, terrestrial, or fossorial snakes. Here, we recorded not only a foraging behaviour of water snake but also other snakes that have habits to be near the water sources. Snakes at seven water sources in Malang are identified and grouped into Colubridae Family and Elapidae Family. Water snakes are usually found hang on branches and wide leaves over the slowly-flowed stream. We found a Fowlea melanzostus that active during the day, and eating Fejervarya limnocharis. The most common species was Fowlea melanzostus piscator and it is active during the day and night. Two of the four species found are arboreal snake, they are Dendrelaphis pictus and Ahaetulla prasina. Both arboreal snakes are found not only during the night but also during the day. We found one individual of Ahaetulla prasina that was hanging on a bamboo stick while eating Chalcorana chalconota during the day. Most of the water sources in Malang have been dominated by Chalcorana chalconota. It makes Bungarus candidus and Coelognathus flavolineatus also found within this ecosystem. Besides preying on the frog, this snake also preys other's snake and mouse which are also found in nocturnals. [ABSTRACT FROM AUTHOR]