Mecistogaster amalia (Burmeister) Odonata: Pseudostigmatidae: First Record from Rio Grande do Sul State, Brazil

The regional knowledge of species diversity and distribution is important to support conservation strategies for species and their habitats. The main goal of this work is to present a checklist of Odonata species in the state of Rio Grande do Sul, as well as their known locations in the municipalities. The preparation of the list was based in data gathered from collections of Museu de Ciências da Universidade do Vale do Taquari (UNIVATES), Laboratório de Ecologia e Evolução da Universidade do Vale do Taquari (UNIVATES), Museu de Ciências Naturais da Fundação Zoootânica, Museu de Zoologia da Universidade do Vale do Rio dos Sinos (UNISINOS) plus data extracted from 65 publications and the sites SpeciesLink, All Odonata and Puget Sound University. A total of 182 Odonata species were recorded, spanning nine families and 57 genera. The most representative family was Libellulidae (80 species) followed by Coenagrionidae (41 species) and seven species are new records for Rio Grande do Sul. The list of species presented here is a significant advance compared to previous counts for Rio Grande do Sul, however, our list is by no means a final one. Some regions of the state remain poorly explored, such as the border to Uruguay also in the northernmost part of the state. Several families remain poorly sampled, especially those that inhabit small forested streams and probably there are many specimens which are not cataloged and identified yet in scientific collections, both in the state and in the country.

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Checklist of Odonata (Insecta) in the state of Rio Grande do Sul, Brazil with seven new records

Dalzochio

Renner

Sganzerla

et al. 2018

Biota Neotrop.

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Species diversity and abundance of Odonata in Sishaghat of Tanahun district, Nepal

Miya

Gautam

Neupane

et al. 2021

JAD

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Odonata are one of the most ancient, well studied and fascinating insect orders considered as bio-indicators of aquatic ecosystems. Studies on Odonata have been carried out in many parts of Nepal, but no specific study has been performed in Tanahun. Hence, a study was conducted to determine the species diversity and abundance of Odonata in the Sishaghat of Tanahun district, Nepal from June to August 2020. A transect survey method was used for data collection. A total of six transects (three in each habitat type: agricultural lands and forest streams), each with a length of 200 m were laid out randomly and each transect was surveyed three times. Data were pooled and analyzed with SPSS. A total of 629 individuals of 26 Odonata species from 20 genera and 7 families were recorded. The overall Shannon-Wiener diversity index was H= 2.25, Shannon Equitability was E= 0.69 and Margalefs' richness index was R= 3.88. Sub-order Anisoptera was more diverse (H= 1.94) and more abundant (n= 545) than Zygoptera (H= 1.31, n= 84). However, species richness was higher and evenness lower in Zygoptera (R= 2.26, E= 0.55) than Anisoptera (R= 2.22, E= 0.72). Anisoptera comprised 15 species within 10 genera from two families and Zygoptera comprised 11 species within seven genera from five families. The family Libellulidae represented the highest species richness (R= 1.75). Neurothemis fulvia and Orthetrum pruinosum were the most abundant species (RA= 23.21 and 21.78 respectively). Of the recorded Odonata, 25 species are included under the least concern and one under the vulnerable category of the IUCN. A higher number of species was found in agricultural lands (nine species); hence, the water bodies around this habitat should be preserved to conserve the Odonata.

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Mecistogaster amalia (Burmeister) Odonata: Pseudostigmatidae: First Record from Rio Grande do Sul State, Brazil

Cited by 2 publications

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Checklist of Odonata (Insecta) in the state of Rio Grande do Sul, Brazil with seven new records

Checklist of Odonata (Insecta) in the state of Rio Grande do Sul, Brazil with seven new records

Species diversity and abundance of Odonata in Sishaghat of Tanahun district, Nepal

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