AN OBSERVATION ON THE TAXONOMIC COMPOSITION, RELATIVE ABUNDANCE AND SEASONAL VARIATION OF ODONATE (DRAGONFLIES AND DAMSELFLIES) FAUNA OF CHAUBATIA GARDEN RANIKHET, ALMORA, UTTARAKHAND, INDIA

Fasuil Farooq and Manoj Kumar Arya*


Insect Biodiversity Laboratory, Department of Zoology,
D.S.B. Campus, Kumaun University, Nainital- 263002, Uttarakhand, India
[*E-mail: dr.manojkumar19@rediffmail.com]
Received: 18-09-2018 Accepted: 10-10-2018

Abstract
The present investigation was aimed as a pilot study to assess the diversity, abundance and taxonomic composition of order Odonata in Chaubatia Garden Ranikhet during July 2016 to June 2018. Observations were carried out at monthly interval during both the years. A total of 392 Odonates belonging to 12 species, 8 genera and 4 families were recorded. The family Libellulidae (8 species) was found to be dominant in the study area, followed by families Aeshnidae (2 species), Cordulegastridae and Synlestidae, which were represented by a single species each. Orthetrum pruinosum (Burmeister) was found to be the most abundant species,
constituting 18.36% of the total recorded individuals of Odonates followed by Sympetrum striolatum (Charpentier) (13.26%), Trithemis festiva (Rambur) constituting 10.45% and Orthetrum glaucum(Brauer) (9.43%), respectively. On the other hand, Anaxim maculifrons Rambur (2.29%), Crocthemis servilia (Drury) (4.08%) and Pantala flavescens (Fabricius) constituting 4.84% of total individuals were observed less abundant species during the entire study period. Species diversity and abundance were recorded maximum in the months of rainy season and dropped to the minimum in the months of summer.
Keywords: Abundance, Chaubatia Garden Ranikhet, Diversity, Odonates, Species

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