Abstract
Odonata diversity was assessed in 13 temporary water bodies of Coimbatore and Salem districts in Tamil Nadu. Assessment revealed the presence of 21 species of Odonata (14 species of Anisoptera and seven species of Zygoptera) belonging to 17 genera under four families. Libellulidae (Anisoptera) was represented by the maximum number of species and individuals. Pantala flavescens (Libellulidae) was the most abundant among 21 species. Among the temporary water bodies, the maximum number of individuals as well as species was recorded from Utkulam tank (Coimbatore district). Odonata diversity was higher in Kamalapuram tanks 1 and 2 (Salem district) and lower in Ukkadam tank (Coimbatore District). Diplacodes trivialis (Rambur), Orthetrum sabina (Drury) and Pantala flavescens (Fabricius) were identified as temporary water body specialists because of their presence in all the 13 temporary water bodies sampled.
Highlights
MethodsOdonata were collected from 13 temporary water bodies of Coimbatore (8) and Salem (5) districts in Tamil Nadu
Twenty-one species of Odonata (14 species of Anisoptera and seven species of Zygoptera) belonging to 17 genera under four families were recorded from 13 temporary water bodies of Coimbatore and Salem districts in Tamil Nadu (Table 2)
Anisoptera dominated the temporary water bodies except in the Commonyeri tank, Selvapuram tank and Nagarajapuram tank (Zygoptera dominant) and no Zygoptera was recorded in the Boominaicken patty tank
Summary
Odonata were collected from 13 temporary water bodies of Coimbatore (8) and Salem (5) districts in Tamil Nadu. In all the temporary water bodies sampled, water is present only during the rainy season (December - April) and remain dry during the summer season. Collections were made after the north-east monsoon (January to April, 2006) and only adult Odonata was collected with the help of a sweep net Date of publication (online): 26 July 2010 Date of publication (print): 26 July 2010 ISSN 0974-7907 (online) | 0974-7893 (print). Manuscript details: Ms # o2035 Received 18 August 2008 Final revised received 20 March 2010 accepted 10 May 2010
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