Phylogeny of the comb-tooth blenny genus Scartella (Blenniiformes: Blenniidae) reveals several cryptic lineages and a trans-Atlantic relationship

2019 ◽  
Vol 190 (1) ◽  
pp. 54-64 ◽  
Author(s):  
G S Araujo ◽  
A Vilasboa ◽  
M R Britto ◽  
G Bernardi ◽  
S von der Heyden ◽  
...  
Keyword(s):  
Rio De Janeiro ◽  
Rio Grande ◽  
The Other ◽  
Disjunct Distribution ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
East Atlantic ◽  
Mitochondrial Data ◽  
Comb Tooth

Abstract Here we present the first phylogeny of the genus Scartella based on mitochondrial data. The analysis strongly corroborates the validity of all species of the genus and shows that Scartella cristata, a species with a disjunct distribution, is a lineage complex comprising five clades: two in Caribbean waters, another in the East Atlantic/Mediterranean and two in Brazil. Brazilian clades occur in sympatry from Rio de Janeiro to Rio Grande do Sul states (southern Brazil). One clade (BRA 1) is unique to Brazil, while the other (BRA 2) is closely related to the eastern Atlantic lineage. Possible explanations for this pattern include both natural and anthropic mechanisms.

scholarly journals Genetics, surnames, grandparents' nationalities, and ethnic admixture in Southern Brazil: Do the patterns of variation coincide?

1999 ◽  
Vol 22 (2) ◽  
pp. 151-161 ◽  
Author(s):  
C.L. Dornelles ◽  
S.M. Callegari-Jacques ◽  
W.M. Robinson ◽  
T.A. Weimer ◽  
M.H.L.P. Franco ◽  
...  
Keyword(s):  
Gene Pool ◽  
Rio Grande ◽  
The Other ◽  
Data Sets ◽  
Significant Heterogeneity ◽  
Historical Records ◽  
Lower Prevalence ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
European Descent

A total of 2,708 individuals from the European-derived population of Rio Grande do Sul, divided into seven mesoregions, and of 226 individuals of similar origin from Santa Catarina were studied. Seventeen protein genetic systems, as well as grandparents' nationalities, individuals' surnames, and interethnic admixture were investigated. The alleles which presented the highest and lowest differences were GLO1*2 (16%) and PGD*A (2%), respectively, but in general no significant genetic differences were found among mesoregions. The values observed were generally those expected for individuals of European descent, with the largest difference being a lower prevalence (34-39%) of P*1. Significant heterogeneity among mesoregions was observed for the other variables considered, and was consistent with historical records. The Amerindian contribution to the gene pool of European-derived subjects in Rio Grande do Sul was estimated to be as high as 11%. Based on the four data sets, the most general finding was a tendency for a northeast-southwest separation of the populations studied. Seven significant phenotype associations between systems were observed at the 5% level (three at the 0.1% level). Of the latter, the two most interesting (since they were also observed in other studies) were MNSs/Duffy and Rh/ACP.

Description of Two New Species of the Genus Vorticella (Ciliophora: Peritrichia) Epibionts on Pomacea canaliculata (Mollusca: Ampullariidae: Gastropoda) in Southern Brazil

Zootaxa ◽  
2018 ◽  
Vol 4508 (2) ◽  
pp. 211
Author(s):  
MARCOS W. O. PEREIRA ◽  
FABIANO CARVALHO De BRITO ◽  
EDUARDO EIZIRIK ◽  
LAURA R. P. UTZ
Keyword(s):  
New Species ◽  
Rio Grande ◽  
The Other ◽  
Pomacea Canaliculata ◽  
Regular Pattern ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Patos Lagoon ◽  
Two New Species ◽  
Scanning Electron

The peritrich ciliates Vorticella veloxiiforme n.sp. and Vorticella ampullaria n.sp. were found as epibionts on the ampullarid mollusk Pomacea canaliculata collected from Patos Lagoon, Rio Grande do Sul state, Brazil. The detailed morphology of both species was investigated using live and stained specimens, as well as scanning electron microscopy. Zooids of Vorticella veloxiiforme are cup shaped measuring 57 X 41 μm on average. A J-shaped macronucleus lies in the upper half of the cell. One contractile vacuole was observed in the upper part of the cell. V. ampullaria presents an elongate zooid measuring 70 X 25 µm on average. A C-shaped macronucleus lies in the middle of the cell. Two contractile vacuoles are present: one close to the peristome and the other in the lower half of the cell. The pattern of oral polykinetids was typical of the genus, with all infundibular polykinetids composed by three rows of kinetosomes each. SEM revealed a regular pattern of pores present on the zooid membrane of both species. Analyses of the 18s rDNA placed the two new species in the order Vorticellida close to described species of Vorticella. 

Monteiroa rubra (Malvaceae: Malvoideae), a New Species Endemic to the Southern Brazilian Grasslands

2019 ◽  
Vol 44 (4) ◽  
pp. 851-856
Author(s):  
Martin Grings ◽  
Sérgio Augusto de Loreto Bordignon ◽  
Ilsi Iob Boldrini
Keyword(s):  
New Species ◽  
Rio Grande ◽  
The Other ◽  
Morphological Description ◽  
Similar Species ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Distribution Map ◽  
A New Species ◽  
Iucn Criteria

Abstract—Monteiroa rubra is described as a remarkable new species from Rio Grande do Sul, Brazil. It is notably distinct from the other ten species of Monteiroa. The new species is morphologically most similar to the four species of the genus with unlobed leaves that also lack cordate leaf bases. Monteiroa rubra apparently is an endemic species known from three localities in wetlands associated with grasslands in Augusto Pestana and Fontoura Xavier municipalities in southern Brazil. A morphological description, distribution map, photographs, ecological notes, and a key to morphologically most similar species are presented. According to IUCN criteria, if a formal assessment were performed, the new species would probably be considered Endangered.

scholarly journals Phthiraptera and Gamasida Parasites of Columbina picui (Temminck) (Columbiformes: Columbidae) in the State of Rio Grande do Sul, Southern Brazil

2012 ◽  
Vol 72 (3) ◽  
pp. 583-585 ◽  
Author(s):  
MAA. Coimbra ◽  
CS. Mascarenhas ◽  
G. Müller ◽  
JGW. Brum
Keyword(s):  
External Surface ◽  
Rio Grande ◽  
The State ◽  
The Body ◽  
The Other ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Mean Intensity ◽  
First Time ◽  
Ornithonyssus Bursa

Thirty-two specimens of Columbina picui (picui ground-dove) were examined, and a collection of arthropods was made by washing the external surface of the body and the nasal cavity. The species in the order Phthiraptera found and their respective prevalences, mean abundance and mean intensity were: Columbicola passerinae (84.4%; 10.3; 12.2), Hohorstiella passerinae (21.9%; 0.7; 3.1) and Physconelloides eurysema (3.1%; 0.1; 2). The gamasid mites found in the birds and their respective prevalences, mean abundance and mean intensity were: Pellonyssus marui (31.3%; 1.2; 3.9), Ornithonyssus bursa (15.6%; 0.2. ;1.2) and Mesonyssus sp. (6.3%; 0.1; 1). Columbicola passerinae, H. passerinae, P. eurysema, O. bursa, P. marui and Mesonyssus sp. were recorded for the first time infecting C. picui in Brazil. Except for O. bursa, the other species are reported for the first time in the state of Rio Grande do Sul, Brazil.

Barysoma lenzii (Synapsida: Dicynodontia) from the Middle Triassic of Brazil, a synonym of Stahleckeria potens

1993 ◽  
Vol 67 (2) ◽  
pp. 318-321 ◽  
Author(s):  
Spencer G. Lucas
Keyword(s):  
Body Length ◽  
Middle Triassic ◽  
Rio Grande ◽  
Upper Triassic ◽  
The Other ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Local Fauna ◽  
Santa Maria ◽  
Subjective Synonym

Huene (1935) first reported dicynodonts from the Triassic Santa Maria Formation of southern Brazil. Most common are specimens of Dinodontosaurus from localities near Chiniquà (Chiniquà local fauna) and near Candelaria (Candelaria local fauna) in the state of Rio Grande do Sul. The other Middle Triassic dicynodont found near Chiniquà is the huge (about 3 m body length) Stahleckeria potens, and an equally large Middle Triassic dicynodont, Barysoma lenzii, is known from near Candelaria. A fourth, supposed Santa Maria Formation dicynodont, Jachaleria candelariensis (Araújo and Gonzaga, 1990), is actually from a younger, Upper Triassic, horizon of the Caturrita Formation near Candelaria (Bonaparte, 1982). Here, I argue that Barysoma lenzii is a junior subjective synonym of Stahleckeria potens and discuss the biochronological significance of this synonymy.

scholarly journals LOCAL BEEF PRODUCTION: WHAT RIO GRANDE DO SUL IS WAITING FOR?

2017 ◽  
Vol 10 (2) ◽  
pp. 312 ◽  
Author(s):  
Tamara Esteves de Oliveira ◽  
David Santos Freitas
Keyword(s):  
Rio Grande ◽  
The State ◽  
The Other ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Beef Production ◽  
Beef Demand ◽  
Small Producers ◽  
Santa Maria ◽  
Very High

This research aims to verify the municipalities where it might be interesting to invest in a local beef production in the State of Rio Grande do Sul (RS), southern Brazil. The data analyzed combine the cattle units slaughtered and the estimated beef consumption in each municipality. These indicators were used to identify the capacity of each location to meet the local beef demand. This data were associated to the map of RS by the Quantum GIS 1.8 Lisboa software. The most prominent regions were located at the western frontier, at the southeast Campanha, and at the northeast mountain region of the State. The cattle units slaughtered produced at the municipalities of Aceguá, Pedras Altas, Machadinho, São Valentim, Quatro Irmãos and Sagrada Família is very high, surpassing the municipality’s capacity to absorb it. On the other hand, many municipalities have sufficient productions or little surplus to attend the local beef demand, such as Alegrete, in which a local beef production might benefit a higher number of small producers, but other municipalities also seem to have potential for assisting familiar farmers with this strategy such as Dom Pedrito, Bagé, Santa Maria and Pelotas.

scholarly journals Recent occurrence of Tinamus solitarius (Vieillot, 1819) (Tinamiformes, Tinamidae) in central Rio Grande do Sul state, southern Brazil

Check List ◽  
2018 ◽  
Vol 14 (3) ◽  
pp. 505-508
Author(s):  
Ivan Luiz Brondani ◽  
Everton Rodolfo Behr ◽  
Veronica Pereira Damasceno ◽  
Marilise Mendonça Krügel
Keyword(s):  
Central Region ◽  
Rio Grande ◽  
The Other ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Recent Occurrence ◽  
Western Portion

Tinamus solitarius (Vieillot, 1819), the Solitary Tinamou, was observed in the central region of Rio Grande do Sul state, on the western portion of the Serra Geral escarpment, in the municipality of Itaara. This population is the most austral of the species and is isolated from the 2 other populations that inhabit Rio Grande do Sul: 1 in Turvo State Park and the other in the eastern portion of the Serra Geral escarpment.

scholarly journals Terrestrial isopod diversity in the subtropical neotropics: Itapuã State Park, southern Brazil

2006 ◽  
Vol 96 (4) ◽  
pp. 473-477 ◽  
Author(s):  
Maurício P. Almerão ◽  
Milton de S. Mendonça Jr. ◽  
Aline F. Quadros ◽  
Ezequiel Pedó ◽  
Luiz G. R. Silva ◽  
...  
Keyword(s):  
Species Abundance ◽  
Rio Grande ◽  
The Other ◽  
Sampling Effort ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Conservation Unit ◽  
Terrestrial Isopod ◽  
Winter Peak ◽  
One Year

We analysed species abundance and composition during one year of sampling at Itapuã State Park, a conservation unit in the State of Rio Grande do Sul, southern Brazil. Samples were collected monthly from May 2003 to April 2004 along a 4 km forest trail divided in three transects along the slopes of a small hill. Terrestrial isopods were hand searched by three people for 40 minutes at two sampling sites along each transect, summing 240 minutes of sampling effort per transect per month. Six species distributed in six families were found. The collector curve stabilised when half the samples were taken, demonstrating sampling sufficiency: analytical estimates did not predict more species to be found in the trail. Atlantoscia floridana (van Name, 1940) was dominant in all transects. Abundance varied along the year with a summer and a winter peak, but peaks were not consistent among transects. The first part of the trail, used for ecotourism, was less diverse, had less species (4 as compared to 6 in the other transects), and was thus also less similar in composition.

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

2011 ◽  
Vol 4 (2) ◽  
pp. 78-79 ◽  
Author(s):  
Marina Schmidt Dalzochio ◽  
Yuji Urakami ◽  
Iberê Farina Machado
Keyword(s):  
Rio De Janeiro ◽  
New World ◽  
Rio Grande ◽  
First Record ◽  
Sao Paulo ◽  
São Paulo ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Misiones Province ◽  
First Time

Mecistogaster is a New World genus of Pseudostigmatidae (Odonata) that is poorly studied due to its preference for flying in forest clearings and trails. In Brazil, only one endemic species, Mecistogaster amalia (Burmeister), is known. The distribution of M. amalia extends from Southest Brazil (Rio de Janeiro and São Paulo states) to Argentina. Herein, we report M. amalia for the first time in Rio Grande do Sul State, Southern Brazil. This record extends the species’ range ca. 630 km from the previous report at Paranaense Forest in Misiones province. Mecistogaster amalia (Burmeister) Odonata: Pseudostigmatidae: Primeiro Registro para o Estado do Rio Grande do Sul, Brasil Resumo. Mecistogaster é um gênero da Família Pseudostigmatidae, restrito ao Novo Mundo e pobremente estudado devido sua preferência por clareiras e trilhas dentro de matas. No Brasil, apenas uma espécie é conhecida, Mecistogaster amalia (Burmeister). A distribuição de M. amalia se estende do sudeste do Brasil (nos estados do Rio de Janeiro e São Paulo) até a Argentina. Aqui, reportamos pela primeira vez M. amalia para o estado do Rio Grande do Sul State, Sul do Brasil. O presente estudo amplia o registro de ocorrência da espécie em 630 km, a partir do registro anterior na Floresta Paranaense, na Província de Missiones, Argentina.

scholarly journals Composition and structure of a Miridae (Hemiptera, Heteroptera) assemblage from a relict of deciduous rainforest in southern Brazil

2011 ◽  
Vol 101 (1-2) ◽  
pp. 115-120 ◽  
Author(s):  
Aline Barcellos ◽  
Letícia S Schmidt ◽  
Paulo Sergio F Ferreira
Keyword(s):  
Species Richness ◽  
Light Trap ◽  
Rio Grande ◽  
The Other ◽  
Sampling Effort ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Composition And Structure ◽  
Made In

A two-year study was carried out to evaluate the composition, abundance and species richness of Miridae from Parque Estadual do Turvo, municipality of Derrubadas, state of Rio Grande do Sul, Brazil. Samplings were made in the springs of 2003 and 2004 (October), and autumns of 2004 and 2005 (May), using a beating tray method, along two trails of the park. Sampling effort (hours x collectors) in the quantitative collections totaled 153 hours. Two-hundred mirid specimens of 50 species were collected. The most abundant mirid was Prepops setosipes (Reuter, 1910), representing 23% of the collected individuals, followed by Collaria capixaba Carvalho & Fontes, 1981 (10.5%) and Tropidosteptes cribratus (Stål, 1860) (7%), the latter recorded in all sampling periods. The highest abundance was observed in the springs of 2003 and 2004, with 53 and 78 individuals, respectively. Rarefaction method showed that estimated species richness was higher in autumn/2004 than in the other sampling periods, and higher along Yucumã than in Garcia trail. Besides a higher species richeness, Yucumã had more exclusive species than Garcia trail. The percent of species represented by one or two specimens in quantitative samplings (singletons and doubletons) was 60%. Additional samplings including hand collection, random beating tray and light trap collections added 20 species not recorded in the quantitative samplings.

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