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Introduction
Odonata order is a small group of insects when compared to
holometabolous. Still, they are one of the most studied group among
insects. It is estimated that there are around 6.000 species described
in the world and around 856 species cataloged in Brazil that leads
itself to the greatest diversity in the world.
1,2
The increased taxonomic
information that we have nowadays led to more studies about Odonata
in Brazil considering how easy is to be observed and captured by the
fascination created by this group.
3-5
Most of these surveys are about
description of new species and their respective ecologic role
6
and
geographic distribution.
7-10
There is a lack of information in many
Brazilian regions due to the absence of infrastructure, logistic and
study group. From this perspective, Brazil northeast is the region with
the fewest data and catalogued species and southeast and south where
are located most of the studies about this order.
7
Considering the
Triângulo Mineiro, the region where the present study was conducted,
there are some studies that contribute to improving the knowledge
about the Order.
1,2,9
Although more studies have been taken place in Triângulo Mineiro,
the anthropic action including deforestation and urbanization, keeps
impacting the Vereda’s areas.
1,11
Despite this, the Brazilian Forest
Code, and the law 12.651 established the preservation of the Veredas
and the maintenance of 20% of native areas of Savanna in private
farms, respectively.
12
According to Souza et al.
13
the deforestation
has a straight impact on the Odonata fauna richness because of their
low resilience.
6
Recent studies described a new endemic specie of
Odonata in the region of Veredas in Triângulo Mineiro that brings
out the importance of studying Odonata richness and its diversity
as well as the preservation of their habitats.
1,2,9
Uberaba city is in
Triângulo Mineiro region Minas Gerais (MG/Brazil). It is considered
a commercial center, with important agribusiness and industrial
park.
14
In agreement with Costa et al.
15
the phytophysiognomy
presented in this city are Savanna Strict Sense, Savanna Typical and
Dense, Non-foodable gallery forest, Veredas and Semideciduous Dry
Forest, which show a high biodiversity. Moreover, little is known
about Odonata fauna of Uberaba/MG, and their distribution. This
knowledge may collaborate to rescue critical areas and to improve
environmental conservation programs, especially in areas of Veredas.
Here, we aimed to create an inventory of the Odonata fauna in the
Veredas from Uberaba-MG.
Material and methods
The present study was developed in Uberaba city, in Minas Gerais
State. Then, 4 regions were selected from Veredas inside the urban
area of Uberaba/MG. To this end, we used Google Maps® and Google
Earth Pro®. Regarding the georeferencing, we used the portable GPS
iFINDER Go2, which was done two points in the central region (1
and 2) and two peripheric points (3 and 4). The Point 1 (19°44’50.64”
S, 47°54’46.29” W) was located at the Acácia Park accessed by
Professor Francisco Brigagão Street, Jardim do Lago neighborhood.
The place presents a water reservoir and exotics plants from the grass
family known as signalgrass (Brachiaria spp.) that were observed
on the riverside and exposed to the sunlight (Figure 1). The point
2 (19°45’5.87” S, 47°57’16.35” W) was located at the Advogado’s
Avenue, Santa Maria neighborhood. This area was damaged by
ruined wires before we could access the Permanent Preservation Area
(Figure 2).
The Point 3 (19°39’46.0” S, 47° 57’ 36.0” W) was at 400 João
Batista Ribeiro Street, Industrial district II, inside the (IFTM) Instituto
Federal de Educação Ciência e Tecnologia do Triângulo Mineiro at
the olive growing sector. Veredas has a long extension, with a dam and
a drainage point (Figure 2). The Point 4 (19°39’46.0” S, 47° 57’ 36.0”
W) was located at 400 João Batista Ribeiro Street, Industrial district
II, inside the IFTM nearby a eucalypt plantation on the Institute road.
This place is characterized by dense vegetation of difcult access and
a little water stream (Figure 2).
Were carried out four collections of Odonata fauna at points 1,
2, 3 and 4, in May, September, December 2018 and March 2019. To
capture the insects, the entomological nets were used. The collections
were prioritized on sunny days between 8 am and 12 pm. The
Int J Hydro. 2021;5(6):296‒300. 296
©2021 Pimenta et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which
permits unrestrited use, distribution, and build upon your work non-commercially.
Urbanization promotes the local extinction of
odonatas in veredas from Minas Gerais/Brazil
Volume 5 Issue 6 - 2021
Paloma Cristina Pimenta,
1
Diogo Silva Vilela,
2
Afonso Pelli
3
1
Instituto de Ciências Biológicas e Naturais, Universidade
Federal do Triângulo Mineiro, Brazil
2
Laboratório de Biologia Aquática, Departamento de Ciências
Biológicas, Faculdade de Ciências e Letras de Assis, Universidade
Estadual Paulista, Assis, São Paulo, Brazil
3
Instituto de Ciências Biológicas e Naturais, Universidade
Federal do Triângulo Mineiro, Brasil
Correspondence: Afonso Pelli, Instituto de Ciências Biológicas
e Naturais. Universidade Federal do Triângulo Mineiro. Av. Frei
Paulino, 30. Uberaba/MG CEP 38025-180, Brazil,
Email
Received: October 21, 2021 | Published: December 13, 2021
Abstract
The order Odonata is one of the most fascinating among insects, with an estimated 6,000
described species. Little is known about the Odonata fauna in many regions of Brazil;
including Vereda’s areas. This unique plant formations occur only in Brazil. Despite being
considered a preservation area, for over 70 years; there are a continuous degradation of this
unique formation. The aim of this study was to survey the species of Odonata that occur
in four areas of Veredas, within the urban perimeter of Uberaba/Minas Gerais. Two points
were selected in the central region and two peripheral points. Four collections were carried
out on sunny days, with two people intercepting the fight with entomological nets in May,
September, December 2018 and March 2019. The total number of adults captured was 163.
In the central points of the city we fnd generalist species, while in the peripheral points
we fnd individuals endemic to Veredas and indicators of preserved environments. Data
indicate that the Veredas have been severely abandoned by the Government and damaged
by urbanization, and that the Odonata are an appropriate group to monitor the integrity of
this type of environment, which gives rise to several important rivers in the region.
Keywords: environmental assessment, checklist, dragonfies, damselfy, biotic integrity
International Journal of Hydrology
Research Article
Open Access