Checklist of Odonata species as indicators of riparian ecosystem of a tropical river, the southern Western Ghats, Kerala, S. India
Vincy MV, Brilliant R, Pradeep Kumar AP
A total of 36 species of odonates, including 24 species of dragonflies (Suborder Anisoptera) belonging to 3 families and 12 species of damselflies (Suborder Zygoptera) belonging to five families were recorded from the riparian zones of Meenachil River Basin, Kottayam District. The study was carried for a period of six years from 2009-2015. The highest diversity of odonates was that of family Libellulidae (61.11%), followed by Coenagrionidae (13.89%), Calopterygidae (10.71%), Gomphidae (8.33%) and Platycnemididae (5.56%). Six species were reported for the first time. Our data revealed odonate assemblages specific to the studied habitats such as marshlands, flowing water bodies, stagnant water bodies and vegetation type (wet zone and dry zone). These data will be useful in future studies and conservation of biodiversity in the studied habitats.