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VOL. 11, ISSUE 1 (2026)
Diversity, seasonal distribution and community structure of insect fauna in Udanti–Sitanadi Wildlife Sanctuary, Chhattisgarh, India
Authors
Dau Lal Sen, P Visvanathan
Abstract
The present study provides a comprehensive inventory and analysis of
the insect fauna of Udanti–Sitanadi Wildlife Sanctuary, Chhattisgarh, India. A
total of 68,420 individuals representing 68 species, 38 families, and 11 orders
were recorded. Among the orders, Blattodea was the most abundant (38,450
individuals), followed by Diptera (16,730), Hymenoptera (6,760), and
Lepidoptera (5,030). Lepidoptera exhibited the highest taxonomic diversity with
eight families, 16 subfamilies, and 22 species, while Mantodea and
Trombidiformes had the lowest representation. Seasonal analysis revealed
significant variation in abundance, with Blattodea and Diptera peaking during
the rainy season, whereas Lepidoptera showed progressive increases from winter
to monsoon. The alpha diversity indices, including Shannon (H’ = 4.52), Simpson
(0.074), and Margalef richness index (6.02), indicated a species-rich and
moderately uneven community. Ecological classification showed herbivores (24
species) and pollinators (23 species) to be dominant, followed by predators,
decomposers, parasites, and omnivores. These findings highlight the taxonomic
richness, seasonal dynamics, and functional diversity of the insect community
in the sanctuary, providing baseline data for future monitoring, conservation,
and management of insect biodiversity in central India.
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Pages:47-54
How to cite this article:
Dau Lal Sen, P Visvanathan "Diversity, seasonal distribution and community structure of insect fauna in Udanti–Sitanadi Wildlife Sanctuary, Chhattisgarh, India". International Journal of Entomology Research, Vol 11, Issue 1, 2026, Pages 47-54
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