scholarly journals New records amplify the geographical distribution of Rondonops biscutatus Colli et al., 2015 (Squamata, Sauria, Gymnophthalmidae) into the Paraguay river basin, Mato Grosso, Brazil

Check List ◽  
2019 ◽  
Vol 15 (5) ◽  
pp. 747-751
Author(s):  
Odair Diogo da Silva ◽  
Thatiane Martins da Costa ◽  
Vancleber Divino Silva Alves ◽  
Eder Correa Fermiano ◽  
Jessica Rhaiza Mudrek ◽  
...  

Rondonops biscutatus is a gymnophthalmid litter-lizard which occurs in the Amazon rainforests and the transitional areas between Amazonia and Cerrado. This species’ distribution is strongly biased by a lack of data, possibly because it was recently described, small-bodied, and living in cryptic habits. Here, we present occurrence data of six specimens from four locations in transitional areas between forests in Amazonia and Cerrado (central Brazil), in the upper Paraguay River, at the northern end of the Pantanal, midwestern Brazil. We expand the distribution of this species 507 km east from its original range.​

Check List ◽  
2015 ◽  
Vol 11 (3) ◽  
pp. 1631
Author(s):  
Walfrido Moraes Tomas ◽  
Rafael Morais Chiaravalotti ◽  
André Restel Camilo ◽  
Gabriel Oliveira de Freitas

The Scorpion mud turtle (Kinosternon scorpioides) is the chelonian species with the largest distribution range in the Neotropics. The species is reportedly distributed as two disjunct populations in South America: the Amazonian and the Chacoan populations. We present new records of K. s. scorpioides which represent an expansion of the species distribution, with the first records for the Upper Paraguay River basin, the first records for the Mato Grosso do Sul state, Brazil, as well as an evidence that the two previously documented populations area not disjunct.


Check List ◽  
2014 ◽  
Vol 10 (2) ◽  
pp. 299 ◽  
Author(s):  
Lenize Batista Calvão ◽  
Paulo De Marco Júnior ◽  
Joana Darc Batista

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.


Check List ◽  
10.15560/8670 ◽  
2014 ◽  
Vol 10 (2) ◽  
pp. 299 ◽  
Author(s):  
Lenize Batista Calvão ◽  
Paulo De Marco Júnior ◽  
Joana Darc Batista

Check List ◽  
2018 ◽  
Vol 14 (2) ◽  
pp. 357-361
Author(s):  
Jefferson Eduardo Silveira Miranda ◽  
Fabiano Rodrigues de Melo ◽  
Marluci Baldo Fachi ◽  
Seixas Rezende Oliveira ◽  
Ricardo Keichi Umetsu

We provide new records of Potos flavus from 2 localities in the states of Goiás and Mato Grosso, central Brazil. These records extend the geographical distribution of this species in the Cerrado biome and highlights the importance of future research on this species. These new distributional data may contribute to a re-evaluation of its conservation status.


2014 ◽  
Vol 14 (3) ◽  
Author(s):  
Lívia Medeiros Cordeiro ◽  
Rodrigo Borghezan ◽  
Eleonora Trajano

We present herein a synthesis of faunistic data from caves in the Serra da Bodoquena karst area, middle Paraguay River basin, Mato Grosso do Sul State. Those include phreatic, submerged and dry caves. Emphasis is given to troglobites (exclusively subterranean species), potentially threatened due to their morphological, physiological and behavioral specializations, associated to generally small distributions. The Bodoquena karst area distinguishes as a spot of high diversity of troglobites, such as trichomycterid and heptapterid catfishes, aquatic planarians and gastropods, arachnids (Eusarcus opilionids, ctenid spiders), Polydesmida diplopods, several collembolans, some insects, and Peracarida crustaceans, which include interesting phylogenetic relicts as spelaeogriphaceans. Four geographic compartments corresponding to microbasins, seemingly with biogeographic importance for the subterranean fauna, are recognized. Phreatobic troglobites (Trichomycterus catfishes, aquatic peracarids, planarians) distribute widely across these compartments and some well beyond (the spelaeogriphacean Potiicoara brasiliensis reaches Mato Grosso state), while those living in base-level streams (Rhamdia and Ancistrus catfishes) and the terrestrial ones, that live in the vadose (aerated zone) are generally restricted to one compartment. Many subterranean ecosystems in Mato Grosso do Sul are endangered by several threats described here and urgent actions for effective protection are required to guarantee a sustainable use of the land and the karst aquifers.


Zootaxa ◽  
2012 ◽  
Vol 3151 (1) ◽  
pp. 63 ◽  
Author(s):  
MARCOS TAKASHI OBARA ◽  
JOSE MARIA SOARES BARATA ◽  
JOÃO ARISTEU DA ROSA ◽  
WALTER CERETTI Jr. ◽  
PAULO SILVA DE ALMEIDA ◽  
...  

Triatoma baratai Carcavallo & Jurberg, 2000, a species similar to Triatoma williami Galvão, Souza & Lima, 1967 andbelonging to the T. matogrossensis subcomplex, was described based on a male specimen collected in a sylvatic environ-ment, near a cave, in Bonito county, Bodoquena mountain range, state of Mato Grosso do Sul, Brazil. In the present workwe describe the female of T. baratai, captured in a chicken house, in Nioaque county, state of Mato Grosso do Sul, Brazil.Furthermore, we recorded the occurrence of T. baratai in domiciles and peridomestic environment in another four munic-ipalities (Bodoquena, Bela Vista, Corumbá, and Miranda), extending its geographical distribution. Finally, we present a key to the species of the Triatoma matogrossensis subcomplex.


2019 ◽  
Vol 46 (3) ◽  
pp. 176
Author(s):  
Camila Calazans Da Silva Luz ◽  
Alexander Webber Perlandim Ramos ◽  
Gessica De Jesus Oliveira Silva

The disorderly use of land is currently one of the main causes of environmental problems. From this perspective, the objective of this study was to determine the natural and environmental vulnerability of the Jauru river basin in the Brazilian state of Mato Grosso. This goal was made from the perspective that the results generated contribute to environmental planning and management, considering that the Jauru river is tributary of the Paraguay river, responsible for the flooding of the Pantanal plain and, that possible impacts caused by the basin may compromise the dynamic equilibrium of the Pantanal's flood pulse. The model of assessment of natural and environmental vulnerability was adopted, with the identification of the following environmental characteristics: geology, slope, agricultural aptitude and vegetation cover and land use. Data were related through Geographic Information Systems to generate natural and environmental vulnerability maps. It was verified, through the data obtained, that in both vulnerabilities studied there was a predominance of the middle class, mainly resulting from the presence of fragile soils. Also, the predominance of the classes of agricultural aptitude found in the basin, as well as the suppression of the natural vegetation to expand the pasture areas. It was concluded that the areas covered by natural vegetation and/or pastures, in the Jauru river basin, present average natural vulnerability and state of medium to high environmental vulnerability, evidencing that livestock, the main activity regional economic development, has been developed in disagreement with environmental aptitude, contributing to the elevation of the state of environmental vulnerability in the basin.


2007 ◽  
Vol 67 (4 suppl) ◽  
pp. 889-895 ◽  
Author(s):  
A Sanches ◽  
PM. Galetti Jr

Brycon hilarii is a migratory fish widely distributed throughout the Paraguay River Basin. It is appreciated in sport fishing and for its superior meat quality. It is also the main species for tourist attraction in the Bonito region (State of Mato Grosso do Sul, Brazil). Considering the lack of information on the genetic structure of the fish of this species, the aim of the present study was to detect the genetic variability of Brycon hilarii through RAPD markers. A total of eighty specimens collected in different seasons at four sites of the Miranda River sub-basin (Paraguay River Basin, Brazil) were used for analysis. The results of genetic similarity, Shannon diversity, and AMOVA revealed differences between the sampling sites. Through AMOVA, differences between populations were more evident among the animals collected during the non-reproductive season, corresponding to a time of less movement of these fish. A population structuring model in which B. hilarii appears organized into genetically differentiated reproductive units that coexist and co-migrate through the studied system was suggested, contrasting the currently accepted idea that freshwater migratory fish form large panmictic populations in a determined hydrographic system. Despite the lack of a complete picture regarding the distribution of B. hilarii in the studied region, this initial idea on its population genetic structure could be an important contribution to providing aid for management and conservation programs of these fish.


Author(s):  
Maiara Tábatha da Silva Brito ◽  
Leidiane Pereira Diniz ◽  
Ully M. Pozzobom ◽  
Victor Lemes Landeiro ◽  
Francisco Diogo R. Sousa

Studies on Cladocera biodiversity in Brazilian freshwater ecosystems are intensifying. However, the fauna of some hydrographic regions is still poorly known. We investigated the richness and species composition of cladocerans in lakes of the Pantanal from the state of Mato Grosso (Paraguay hydrographic region), Brazil. In addition, we cataloged the known cladoceran species in each hydrographic region of the state. Occurrence data were obtained from the literature and samples collected from 50 lakes in the northern Pantanal. We recorded 120 cladoceran species from eight families in the state of Mato Grosso. The occurrence of these species was recorded in the Amazon and Paraguay hydrographic regions. We are unaware of studies on cladocerans conducted in the Tocantins-Araguaia hydrographic region. We reported 17 new records in the Pantanal samples (Paraguay hydrographic region). Overall, richness estimates reveal that 72.6% of the state's cladoceran fauna is already known, while for the Paraguay hydrographic region this estimate is 72.2%. In general, the cladocerans from the Amazon and Paraguay regions did not differ. Our findings allow us to infer the need for further studies in the different hydrographic regions found in Mato Grosso in order to improve the knowledge of cladoceran biodiversity. We suggest a greater sampling effort, particularly in the littoral zone of aquatic ecosystems in this state, which can harbor great biodiversity.


Mammalia ◽  
2015 ◽  
Vol 79 (3) ◽  
Author(s):  
Marcus Vinicius Brandão ◽  
Guilherme Siniciato Terra Garbino ◽  
Leandro Perez Godoy ◽  
Leandro Alves da Silva ◽  
Wanieulli Pascoal

Abstractis a marsupial with unique morphological and ecological characteristics. Owing mainly to its semi-aquatic habits, it is rarely collected by conventional methods, being consequently underrepresented in scientific collections. Its distribution in South America is currently considered disjunct, with a north-west and a south-east portion, and a large gap of more than one thousand kilometers that comprises central Amazonia and a large portion of the Cerrado. On the basis of four museum specimens and two photographed live animals, we present six new records for the species. These records extend the species’ distribution, showing that its range is continuous from southern Amazonia and through Cerrado gallery forests, to the southern portion of its range in southeastern South America. Most known records of


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