Diversity and Composition of Dragonfly (Odonata) at The Punden Sumur Bumi Area, Surabaya, East Java

The Sumur Bumi Punden is a location used for spiritual tourism. The Punden Sumur Bumi area has a stagnant aquatic ecosystem type and a low level of disturbance and pollution. Therefore, the Punden Sumur Bumi area has the potential to be a natural habitat for dragonflies. This study aims to determine the diversity and composition of the dragonfly community in Sumur Bumi Punden. This study uses the visual day-flying observation technique modified by the transect method. The Punden Sumur Bumi area has a moderate diversity index value, with a value of H' = 2.57. In the Sumur Bumi Punden area, 17 species were found with a total of 124 individuals, including the species with the highest relative abundance, namely Brachythemis contaminata. Meanwhile, the species with the lowest relative abundance was Diplacodes trivialis. The composition of dragonflies showed that the swamp location had the highest species richness and abundance values, namely 16 species and a total of 79 individuals. Meanwhile, the grassland location has the lowest species richness, namely only 5 species