Odonates diversity was studied in Paddy field of central Gujarat during 2012 to 2015. Total 39 species belonging to 25 genera, under six families and two suborders were recorded. Total 17 species of Zygoptera (damselflies) and 22 species of Anisoptera (dragonflies) were recorded. Community structure and population dynamics of adult odonates were studied at Lingda village during July to December, 2012 through monitoring their population by point count method on three microhabitats (paddy field, village pond and fish farm). Total seventeen species were encounterd in the point count. Diversity index (H’) was highest (2.13) for paddy fields followed by fish farm (2.07) and village pond (1.99). Evenness value of the odonates also ranged between 0.7 and 0.8. Total four species ( Viz. Ditch Jewel (25.0%), Green Marsh Hawk (17%), Ruddy Marsh Skimmer and Coromandal Marsh Dart (16% each) were dominant species in all three microhabitats. Both the suborders Anisoptera (dragonfly) and Zygoptera (damselfly) showed similar trend of population fluctuation during the study. Relative abundance was higher and remained constant during 4 th week of September to 2 nd week of October.

/pdf/diversity-and-population-dynamics-of-odonata-insecta-odonata-4liafmzdu9.pdf

Diversity and Population Dynamics of Odonata (insecta: Odonata) in Rice Growing Area of Central Gujarat

This work was funded by The Isaac Newton Trust Cambridge, Golden Agri Resources, and the Natural Environment Research Council [grant number NE/P00458X/1].

https://onlinelibrary.wiley.com/doi/pdf/10.1111/btp.12749

Complexity within an oil palm monoculture: The effects of habitat variability and rainfall on adult dragonfly (Odonata) communities

Odonate diversity of Nalsarovar Bird Sanctuary, a Ramsar site in Gujarat, was studied between January 2015 and July 2017.  A total of 46 species belonging to two suborders, six families, and 27 genera were recorded, which included 14 species of Zygoptera (damselfly) and 32 species of Anisoptera (dragonfly).  Out of the 46 species, 40 species are new records for the Nalsarovar Bird Sanctuary.  The record of Enallagma cyathigerum Charpentier, 1840 in Gujarat needs verification.  Need to monitor changes taking place in Odonata species composition after influx from Narmada canal at Nalsarovar is emphasized.

/pdf/odonate-diversity-of-nalsarovar-bird-sanctuary-a-ramsar-site-j1oi37me0c.pdf

Odonate diversity of Nalsarovar Bird Sanctuary - a Ramsar site in Gujarat, India

The diversity of the Odonata (dragonflies and damselflies) was studied in seven districts of southern area of Gujarat State in India during 2014 to 2015.  A total of 55 species belonging to two suborders and 37 genera under eight families were recorded.  A total of 18 species of Zygoptera (damselflies) and 37 species of Anisoptera (dragonflies) were recorded.  Dang and Navsari districts were surveyed intensively and a maximum of 47 and 35 species were recorded respectively, whereas the districts that were surveyed less intensively, i.e., Bharuch (26), Valsad (21), Surat (29), Narmada (25) and Tapi (27) had comparatively low species richness.  Thirty-two species are being reported for the first time from southern Gujarat, raising the total list of odonates to 60.  Fifteen species namely, Lestes elatus Hagen in Selys, 1862; Elattoneura nigerrima (Laidlaw, 1917) ; Dysphaea ethela Fraser, 1924 ; Paracercion malayanum (Selys, 1876); Pseudagrion spencei Fraser, 1922 ; Burmagomphus laidlawi- Fraser, 1924 ; Cyclogomphus ypsilon Selys, 1854 ; Microgomphus torquatus (Selys, 1854); Onychogomphus acinaces (Laidlaw, 1922); Hylaeothemis indica Fraser, 1946 ; Lathrecista asiatica (Fabricius, 1798); Rhodothemis rufa (Rambur, 1842); Tramea limbata (Desjardins, 1832); Trithemis kirbyi Selys, 1891 and Zyxomma petiolatum Rambur, 1842 are recorded for the first time from Gujarat State raising the number of odonates of Gujarat State to 80 species.

/pdf/odonata-insecta-diversity-of-southern-gujarat-india-491xhhp86e.pdf

Odonata (Insecta) diversity of southern Gujarat, India

Odonata is one of the most predominant natural enemy of the rice ecosystems and their diversity in rice fields from different parts of Tamil Nadu viz., Coimbatore, Aduthurai, Pudukkottai, Ramanathapuram, Bhavanisagar and Gudalur was studied. The Odonata assemblage comprised 21 species under 19 genera under 4 families. Anisoptera (dragonflies) were dominant with 15 species and 14 genera over Zygoptera (damselflies) (6 species, 5 genera). Libellulidae (Anisoptera) was the most speciose family with 14 species followed by Coenagrionidae (Zygoptera) with 5 species. Diversity analysis of Odonata from rice fields of Tamil Nadu revealed that the order of Simpson Diversity index (SID) of diversity was Coimbatore (0.89) > Bhavanisagar (0.88) > Aduthurai (0.87) > Ramanathapuram (0.87) > Gudalur (0.84) > Pudukottai (0.82). Margalef index (α) of species richness were high in Coimbatore (2.33) and least in Gudalur (1.55). Eveness of species within the region (Pielou`s evenness index, E1) was the highest for Bhavanisagar (0.94) and the lowest for Aduthurai (0.84). Among the different regions, Odonata in rice fields of the Coimbatore and Aduthurai were found to have a maximum similarity.

https://www.entomoljournal.com/archives/2020/vol8issue5/PartAC/8-5-271-286.pdf

Diversity of Odonata in the rice fields of Tamil Nadu

An inventory of Odonata was carried out in six districts of central Gujarat from 2012 to 2014.  A total of 42 species belonging to 27 genera, under seven families and two suborders were recorded.  A total of 16 species of Zygoptera (damselflies) and 26 species of Anisoptera (dragonflies) were recorded.  Anand District was surveyed intensively and as a result a maximum of 35 species was recorded (Dragonfly 22 and Damselfly 13), whereas less intensively surveyed districts, i.e., Panchmahal (17) and Dahod (16) had comparatively low species richness.  Twenty-two species are being reported for the first time from central Gujarat, raising the total list of odonates to 48.  Six species reported in an earlier survey were not encountered during this study.  Seven species namely, Copera marginipes, Pseudagrion microcephalum , Anaciaeschna jaspidea , Anax immaculifrons , Epophthalmia vittata , Brachydiplax sobrina , Tramea basilaris burmeisteri are being recorded for the first time from Gujarat State.  Hence, now the checklist of the odonates of Gujarat is raised to 65 species.

An inventory of odonates of central Gujarat, India

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Diversity and Population Dynamics of Odonata (insecta: Odonata) in Rice Growing Area of Central Gujarat

An inventory of odonates of central Gujarat, India