Environmental indicators based on Odonata diversity around the springs in Malang Raya, East Java.

This research was designed to determine the environmental condition based on Odonata diversity found around the springs in Malang, East Java. The research was carried out around the springs, which focused on the species, the number of individuals of Odonata, habitat, and physical condition of the environment. Visual observation was used by the VES method, then counting the number of species and number of individuals within a radius of 200 m from the springs as a focal point of observation. Data collection was done at 4 springs, including Kendedes, Jenon, Taman, and Cangar. The results showed that there were 17 species of Odonata from 7 different families, with a total number of individuals found from 4 Springs as many as 245 individuals. The most common type was Agriocnemis femina and Orthetrum sabina. The analysis also portrayed a moderate Odonata diversity index and that there was a correlation between the physical condition of the environment and the species of Odonata found in a habitat. This condition can be used to describe the structure of the Odonata community in the area. [ABSTRACT FROM AUTHOR]