Snakes and lizards (Reptilia: Squamata) of Gadjah Wong River area, Province of Daerah Istimewa Yogyakarta

摘要

The upstream of Gadjah Wong River is located north on the foothill of Mount Merapi and the downstream is on the south, fused with Opak River in the Bantul Regency. The research was aimed to acquire data about the diversity of snakes and lizards (Reptilia: Squamata) along the Gadjah Wong River in the Daerah Istimewa Yogyakarta. The snakes and lizards diversity data were collected using VES (Visual Encounter Survey) along the riverbank. Sampling area generally divided into three parts, i.e., upstream, midstream, and downstream. Species diversity of snakes and lizards in the Gadjah Wong River consists of nine snakes' species (suborder Serpentes), and eight lizards' species (suborder Lacertilia). Based on the species diversity recorded it can be concluded that the Gadjah Wong River, especially the upstream and midstream part is a decent habitat for some lizards and snakes.