Diversity of Odonata in a Coffee Ecosystem

Authors

  • K. R. Manikandan Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu
  • M. Muthuswami Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu
  • N. Chitra Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu
  • M. Ananthan Directorate of Open and Distance Learning, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu

DOI:

https://doi.org/10.55446/IJE.2022.439

Keywords:

Odonata, diversity indices, coffee ecosystem, Southern Western Ghats, lower Palni Hills, seasonal abundance, numerical abundance

Abstract

A total of 419 individuals under 5 families, 10 genera and 10 species of Odonata were observed in the present study on the Odonata from a coffee ecosystem at the lower Palni Hills, Tamil Nadu, India. Among these, the family Libellulidae included six species followed by Euphaeidae (2), and Chlorocyphidae, Coenagrionidae and Aeshnidae (1 each). The dominant species were: Pantala flavescens (44.40%) > Diplacodes trivialis (22.70%) > Orthetrum chrysis (7.40%). Pantala flavescens was maximum during northeast monsoon season (50.0%) followed by summer and winter (43.8% each). Margalef index of species richness was maximum (2.00) during winter, and that of Simpson index was maximum (0.75) during south west monsoon. Shannon-Wiener index of dominance was maximum (1.75) during summer. The species were evenly distributed during summer with Pielou’s evenness index value of 0.76.

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Published

2022-07-01

How to Cite

Manikandan, K. R., Muthuswami, M., Chitra, N., & Ananthan, M. (2022). Diversity of Odonata in a Coffee Ecosystem. Indian Journal of Entomology, 85(1), 274–276. https://doi.org/10.55446/IJE.2022.439

Issue

Volume 85, Issue 1, March 2023

Section

Research Communications
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