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.
