Odonata assemblage at a small marshy land in Khadki (Pune city) – An assessment (original) (raw)
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Journal of Threatened Taxa
The research was carried out over a three-year period, spanning from March 2020 to March 2023, with the aim of examining the status and diversity of Odonata fauna across a range of natural and anthropogenic habitats situated in Egra, Purba Medinipur District, located in the state of West Bengal. In total, 42 odonata species from 31 genera and seven families were identified throughout the study period from the study region. There were 28 (67%) species in the suborder Anisoptera, belonging to four distinct families. On the other hand, 14 (33%) species in the Suborder Zygoptera, divided into three different families. The four families of suborder Anisoptera were Aeshnidae (10%), Gomphidae (2%), Libellulidae (53%), and Macromiidae (2%). In the suborder Zygoptera, three families were identified, namely Coenagrionidae (24%), Lestidae (2%), and Platycnemididae (7%). %). According to the relative estimate of abundance, 38% of the species were classified as not rare (NR), 31% very common (VC...
Current World Environment, 2016
Odonates are valuable as indicators of aquatic and terrestrial ecosystem health and also play a vital role as prey and predator to maintain the balance of trophic levels of food chain. Diversity and distribution of different species of Odonata and physico-chemical properties of water of their habitat in the rural (RA), urban (UA) and tea garden (TG) area of Cachar district of Assam was investigated. A total of fourteen (14) species (larva and adult) were recorded from the three areas. Six species were recorded in RA, four species in TG and six species in UA. Two species Ischnura aurora aurora and Agriocnemis pygmaea pygmaea were recorded common in TG and UA. In TG presence of only two tolerant families indicated that the water quality of the area is polluted. In RA, presence of Aeshnidae indicated relatively better condition of water quality.
Journal of entomology and zoology studies, 2016
A study was conducted on the status and diversity of Odonata (Dragonfly and damselfly) fauna in Midnapore, West Bengal and associated areas in various natural and anthropological habitats from June 2013 to July 2015. Forty-one species of odonates belonging to the 29 Genera and 6 Families were recorded from the study area during study period. Suborder Zygoptera was represented by 2 families and Suborder Anisoptera represented 4 families. Among them 29 species were dragonflies under the families; Aeshnidae, Gomphidae, Libellulidae and Macromiidae whereas the other 12 species were damselflies under 2 families; Coenagrionidae, Platycnemididae. Species composition was highest in the family Libellulidae (56%) followed by the family Coenagrionidae (22%). Their status has been assessed in that study area. Species have been classified based on their relative estimate of abundance. Such studies on monitoring the species diversity and abundance can give valuable information and insight on the ...
Odonata fauna in adjoining areas of Amirthi Zoological Park in Vellore District, Tamilnadu, India
Acta Entomology and Zoology, 2021
The objective of the present study is to explore the diversity of dragonflies and damselflies (Odonata) in Amirthi Forest Division, Vellore District. Dragonfly watching and recording has been done in each line transect during a week. A total of 37 species belonging to 29 genera and 6 families viz. Lestidae, Platycnemididae, Coenagrionidae (under suborder Zygoptera) and Coenagrionidae, Platycnemididae and Libellulidae (under suborder Anisozygoptera) were recorded. The maximum number of Odonates were found in Libellulidae (n=20), followed by Coenagrionidae (n=11 species), Aeshnidae (n=2 species), Lestidae (n=3 species), Platycnemididae (n=1 species) and Gomphidae (n=1 species). Out of the Site-1 Urban areas, Site-2 Agricultural areas, Site-3 wet land areas and Site-4 Amirthi park areas are selected study sites, the highest number of Odonate species (28) was recorded in S3 and S2 ranked second with 24 species. Species richness was comparatively low in the remaining Study sites: S4 with 21 species and S1 with 18 species. The result of high species richness in the particular study sites (S3 and S2) may be due to the intensity and duration of longer surveys, rather than true ecological species richness. Among the selected Sites the diversity of dragonflies was high in Agricultural areas and wet land areas. Out of the 37 Odonates recorded from the district, 35 species come under the IUCN Red List of Threatened Category. Among them 37 species comes under Least Concern (LC) Category, one species under Data Deficient (DD) and three species is not evaluated. The present study is to encourages the wide range conservation of dragonfly species in the study area.
A total of 34 species of odonates, including 26 species of dragonflies (sub-order Anisoptera) belonging to 3 families and 8 species of damselflies (sub-order Zygoptera) belonging to 3 families were recorded from the Bodoland University between May 2013 to November 2014. From the sub-order Anisoptera, the Libellulidae was the richest family with 20 species and from the sub-order Zygoptera, the Coenagrionidae was the richest family with 6 species. A detailed list of odonates recorded from Bodoland University is presented.
2016
A total of 39 species of Odonates, including 28 species of dragonflies(sub-order: Anisoptera) belong to 3 families and 11 species of damselflies(sub-order: Zygoptera) belonging to 3 families were recorded in and around the Vivekananda Kendra Vidyalaya (NEC) Baragolai, Margherita, Tinsukia district of Assam(India) between March, 2015 to June, 2016. From the sub-order Anisoptera, Libellulidae was the richest family with 25 species and from the sub-order Zygoptera, Coenagrionidae is the richest family with 9 species. A detail list of odonates recorded from the study area is presented.
Diversity of Odonata (Insecta) in Padmatola wetland, Balasore, Odisha, India
The present study has been carried out in the Padmatola wetland of Balasore district of Odisha, India during December 2013 and May 2014. This study emphasises a checklist of total 51 species of odonata (Dragonflies and Damselflies). Among this the suborder anisoptera represented by 33 species with 22 genera from 4 fami-lies and suborder zygoptera represented by 18species with 9 genera from 3 families. Family Libellulidae be-longing to anisoptera is dominant with 28 species and Coenagrionidae belonging to zygoptera is richest with 15 species. But the rapid degradation of the wetland by human activities are the main threat to the odonates along with the biodiversity.
Diversity and Species Composition of Odonates in Southern Rajasthan, India
Proceedings of the Zoological Society, 2014
The study was conducted in south Rajasthan to explore diversity and species composition of Odonata from January 2013 to June 2013. Odonates were sampled from 13 localities i.e., Pichola lake, Udaisagar lake, Badi lake, Ghasa lake, Menar lake, Badwai lake, Rup sagar lake, Roli todgarh Wildlife Sanctuary, Sitamata Wildlife Sanctuary, Karmoi river stream in Sitamata WLS, College campus, Rajsmand lake and Meja dam. During the study period, a total of 1,290 individuals from 8 families and 54 species were recorded. 4 families and 28 species were related to Anisoptera, while 4 families and 26 species belonged to Zygoptera. Suborder Zygoptera were represented by the families Chlorocyphidae, Coenagrionidae, Lestidae and Platycnemididae, and suborder Anisoptera by the Aeshnidae, Gomphidae, Libellulidae and Macromiidae. Libellulidae was the largest family with 24 species, while the most dominant species was Brachythemis contaminata (21.80 %). Orthetrum chrysis and Lestes sp. were found randomly distributed in the study area, while other were aggregated and showed habitat preference.
Journal of Threatened Taxa, 2016
The present investigation was undertaken as a pilot study to examine the diversity, occurrence and distribution pattern of dragonflies and damselflies (Odonata) from the selected study sites of the Asansol-Durgapur industrial area of Burdwan District of West Bengal, India from January 2012 to December 2015.A combination of direct search and opportunistic sighting methods were applied to record 57different Odonata species (38dragonflies and19damselflies). Among the dragonflies the most diverse family was Libellulidae represented by36 species while among damselflies Coenagrionidae was the most diverse family represented by 16 species.In spite of the Asansol-Durgapur region being an industrial urban area, the present study revealed a handsome diversity of odonates. A suitable geographic location, favourable climatic conditions, heterogeneous habitat types that included ponds, wetlands, riverbeds, grasslands and agricultural lands along with the presence of appropriate vegetation provided a comfortable shelter for Odonataspecies to flourish in this ecoregion. All the odonates noted in the present study belong to the Least Concerned category as designated by IUCN.