Abstract
Odonates are found in all freshwater environments, and are specially species rich in tropical freshwater ecosystems. Currently about 800 odonate species are known to Brazil, but only 29% of the Brazil territory have been surveyed for this group. Here we provide a species list with information on distribution and new records for Odonata in nine streams in Nova Xavantina, Mato Grosso, Central Brazil. We used the scan procedure with a fixed area for three days in each stream between 10:00 and 14:00h. We collected 1038 dragonfly specimens belonging to 67 species, which represents 8% of the known Brazil odonate fauna. Additionally, five new records for the study area are presented.
Highlights
The order Odonata currently comprises about 6.000 species (Trueman 2007), but recent studies estimate the richness of this group to be 7000 species (Kalkman et al 2008)
Considering that Brazil is the largest country in South America, the number of species may be much higher, since only 29% of the Brazilian territory has been surveyed for species of Odonata (De Marco and Vianna 2005)
We collected adult Odonata specimens in nine streams, tributaries of the Ribeirão Antártico and Pindaíba River Basins, both belonging to the Rio das Mortes River Basin in Nova Xavantina, eastern Mato Grosso, Brazil (Table 1 and Figure 1)
Summary
The order Odonata currently comprises about 6.000 species (Trueman 2007), but recent studies estimate the richness of this group to be 7000 species (Kalkman et al 2008). The suborders Anisoptera and Zygoptera are present in Brazil, comprising about 800 species (Souza et al 2007), which represents 46% of the Neotropical fauna. Considering that Brazil is the largest country in South America, the number of species may be much higher, since only 29% of the Brazilian territory has been surveyed for species of Odonata (De Marco and Vianna 2005). Nowadays this percentage could be much higher, since there are a growing number of new records and new species being described (Pinto and Lamas 2011; Lencioni 2013)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
