Ecology, Environment and Conservation Paper


Vol.31 (4), 2025

Page Number: 1720-1725

DIVERSITY OF ODONATA IN BABY JOHN MEMORIAL GOVERNMENT COLLEGE CAMPUS CHAVARA KOLLAM, KERALA: A PRELIMINARY ASSESSMENT AND CONSERVATION IMPLICATIONS

Kiran P., Vaishnavi Ajith and Dhanya Raj

Abstract

This study aimed to record and analyze the diversity of odonates in the BJM College campus, a 14-hectare area located in Chavara, Kollam, India. The research was conducted in the area where individual sightings were recognized and documented using suitable field guides. Eighteen odonate species were recorded in the study area, comprising 10 dragonflies and 8 damselflies from 3 families. Amid this diversity, a greater number of families Libellulidae and Coenagrionidae were observed in the orders Anisoptera and Zygoptera, respectively. The species richness (R), Shannon-Wiener diversity (H’), evenness (E), and Simpson’s diversity(1/D) values calculated were 3.34, 2.48, 0.98, and 10.90 respectively, while the two groups exhibit vertical niche segregation. The baseline data presented here serve as the foundation for evidence-based conservation suggestions.