ABSTRACT

Both dragonflies and damselflies are important component of both terrestrial and aquatic environments providing various ecosystem services. The odonate fauna of India have been studied in details by various workers but still the knowledge on local assemblage pattern is inadequate, especially in the upper Assam region of Northeast India. The present investigation was carried out in a wetland rich Important Bird Area of Upper Assam during 2019, which revealed 56 species of dragonflies (30 species) and damselflies (26 species) under 35 genera and 8 families. The family Libellulidae (28 species) and Coenagrionidae (18 species) were dominant followed by families Platycnemididae, Chlorocyphidae, Lestidae, Aeshnidae, Calopterygidae, Gomphidae each represented by three or less number of species. This higher diversity is supported by various temporary and perennial water bodies abundant with the aquatic macrophytes. No major threats to odonate in the present area were detected during the study period. However, long term survey considering influences of environmental factors is required for better understanding seasonality, population dynamics and community services of dragonflies, damselflies or other insects. Keywords: dragonfly, damselfly, diversity, Jorhat, Northeast India, IBA site
Publication date: 1/1/21

https://ijbpas.com/pdf/2021/January/MS_IJBPAS_2021_5332.pdf

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https://doi.org/10.31032/IJBPAS/2021/10.1.5332