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VOL. 10, ISSUE 7 (2025)
Distribution and community structure of aquatic entomofauna in Dheer Beel under Chakrashila complex of Chakrashila Wildlife Sanctuary Assam, Northeast India
Authors
Anjalu Basumatary, Arundhati Gogoi, Dr. Akshay Kr Haloi, Dr. Alakesh Barman
Abstract
Insects represent the most abundant and varied
category of living organisms found on our planet. Aquatic insects play a
pivotal role in freshwater ecosystems, contributing significantly to the
biodiversity and ecological balance of these habitats. Present study was
conducted to collect data on the distribution and species composition of aquatic
insect community in Dheer beel under Chakrashila complex of Chakrashila
Wildlife Sanctuary. A total of 525 individual insects were collected during the
study period. Among these, 28 insect species were identified, belonging to 3
different orders and 14 families. Coleoptera, consisting of 12 species, were
observed belonging to 4 families Dytiscidae, Hydrophilidae, Gyrinidae, and
Noteridae. Hemiptera, on the other hand, were represented by 12 species
belonging to 7 families Belostomatidea, Notonectidae, Nepidae, Hydrometridae,
Gerridae, Micronectidae, and Veliidae. Lastly, Odonata included 4 species from
3 families Coenagrionidae, Platycnemididae, and Libellulidae. Both Hemiptera
and coleoptera exhibited the equal and highest number of recorded species, followed
by Odonata, indicating a rich variety of these insect groups in the wetland
environment. The dominance of Hemiptera and Coleoptera insects suggests a
relatively less polluted ecosystem in Dheer Beel. Diversity indices, such as
Simpson's index, Shannon-H index, and Margalef's index, indicated a stable and
balanced habitat with high biotic diversity and pollution-free water quality in
Dheer Beel.
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Pages:186-191
How to cite this article:
Anjalu Basumatary, Arundhati Gogoi, Dr. Akshay Kr Haloi, Dr. Alakesh Barman "Distribution and community structure of aquatic entomofauna in Dheer Beel under Chakrashila complex of Chakrashila Wildlife Sanctuary Assam, Northeast India". International Journal of Entomology Research, Vol 10, Issue 7, 2025, Pages 186-191
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