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VOL. 11, ISSUE 2 (2026)
Preliminary study on diversity of Odonata in an urban green space of Indira Vihar, Raigarh, Chhattisgarh, India
Authors
Sahu Ranjana
Abstract
Odonata (dragonflies and damselflies) are important bioindicators of
freshwater ecosystems. The present study was conducted at Indira Vihar from
January 2025 to December 2025 to assess the diversity and distribution of
Odonata across different habitats. A total of 34 species belonging to 7
families were recorded during the study period. Among these, Libellulidae was
the most dominant family with 18 species (52.94%), followed by Coenagrionidae
with 10 species (29.41%). Platycnemididae was represented by 2 species (5.88%),
whereas the remaining families—Gomphidae, Aeshnidae, Protoneuridae, and
Chlorocyphidae—were represented by one species each (2.94% each). Diversity
indices showed that the study area has rich biodiversity. The Shannon–Wiener
diversity index (H' = 3.30) indicated high species diversity, while Simpson’s
index (1 – D = 0.96) reflected low dominance and a high degree of evenness
among species. The Margalef richness index (d = 5.644) indicates high species
richness. The dominance of Libellulidae suggests their greater adaptability to
a wide range of freshwater habitats. The availability of both permanent and
seasonal water bodies, including stagnant as well as flowing waters, along with
surrounding vegetation, creates favourable ecological conditions that support
diverse Odonata assemblages. The present study provides baseline information on
the diversity and distribution of Odonata in the region, which can be useful
for future ecological monitoring and conservation planning.
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Pages:28-32
How to cite this article:
Sahu Ranjana "Preliminary study on diversity of Odonata in an urban green space of Indira Vihar, Raigarh, Chhattisgarh, India". International Journal of Entomology Research, Vol 11, Issue 2, 2026, Pages 28-32
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