The compositon and diversity of dragonfly (insecta:odonata) community in Sungai Tersat, Hulu Terengganu, Terengganu

Abstract

The importance of this study was an indication of ecosystem quality at the study site. A study on composition and diversity of dragonfly was conducted in Sungai Tersat, Hulu Terengganu. This river was considered as a disturbed area that distressed by human activities. 204 individuals from 13 species were collected. Libellulidae was the most dominant family with 58% of total individual collected, followed by Platycnemididae (36%), Gomphidae (3%) and Chlorocyphidae (3%). Station 2 scored the highest values of Diversity Index (H=9.007), Richness Index (R=12.786) and Evenness Index (E=l.924). The composition and diversity of dragonfly was influenced by microhabitat preferences and environment condition. Light humidity was significantly influenced the dragonfly distribution whereas relative humidity did not influenced the dragonfly distribution. Riparian area along the river bank was most preferred by dragonfly compared to other microhabitats.