scholarly journals The Holocene paleoenvironment in the Serra Velha region, RS, Brazil through a study of plant succession

2001 ◽  
Vol 28 (2) ◽  
pp. 245 ◽  
Author(s):  
MÁRCIA MIKLOSKI GRALA ◽  
MARIA LUISA LORSCHEITTER
Keyword(s):  
Significant Influence ◽  
Coastal Plain ◽  
Rain Forest ◽  
Rio Grande ◽  
Plant Succession ◽  
Coastal Vegetation ◽  
Atlantic Rain Forest ◽  
Rio Grande Do Sul ◽  
Herbaceous Vegetation ◽  
The Holocene

Palynological studies in the marsh forest of Serra Velha (29º36’S – 51º38’W), Rio Grande do Sul, Brazil, detected a plant succession through hydrosere from a water body already somewhat filled up by herbaceous vegetation at 9800 ± 90 yr BP. The climatic amelioration at the beginning of the Holocene accentuated the filling up process. Later, between 7800 – 7280 ± 60 yr BP, a short phase of significant influence of the forest over the marsh occurred. A new significant expansion of the forest, beginning at about 6000 yr BP took place. This gave rise to the present forest which is represented by many species of the Atlantic rain forest. Compared to the already existing palynological data about the Coastal Plain, it becomes evident that the present Serra Velha forest is older, which seems to indicate the importance of the foothill forests of Serra Geral in forming the present coastal vegetation in Rio Grande do Sul.

scholarly journals New distribution record of Nigrohydnum nigrum Ryvarden (Polyporales: Basidiomycota) in the Atlantic forest

Check List ◽  
2013 ◽  
Vol 9 (1) ◽  
pp. 97 ◽  
Author(s):  
Gerardo Robledo ◽  
Adriana De Mello Gugliotta
Keyword(s):  
Atlantic Forest ◽  
Rain Forest ◽  
Rio Grande ◽  
Atlantic Rain Forest ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Porto Alegre ◽  
Voucher Specimen ◽  
Distribution Record ◽  
New Distribution

Nigrohydnum nigrum Ryvarden is a rare polypore previously known only from two records in Brazil. During a herbarium revision at SP we have identified an old voucher specimen, extending the previously known geographic distribution to the Atlantic rain forest of Porto Alegre, Rio Grande do Sul State, Southern Brazil.

The tadpole of Rhinella crucifer (WIED-NEUWIED, 1821) (Amphibia: Anura: Bufonidae) from southern Bahia, Brazil

Zootaxa ◽  
2012 ◽  
Vol 3299 (1) ◽  
pp. 66 ◽  
Author(s):  
DANILO SILVA RUAS ◽  
CAIO VINICIUS DE MIRA MENDES ◽  
BRUNO BERNAL SZPEITER ◽  
MIRCO SOLÉ
Keyword(s):  
Rain Forest ◽  
Rio Grande ◽  
Minas Gerais ◽  
Sao Paulo ◽  
Northeastern Brazil ◽  
Atlantic Rain Forest ◽  
Rio Grande Do Sul ◽  
Southern Bahia ◽  
Northeastern Argentina ◽  
Phylogeographic Study

According to Baldissera et al. (2004) the Rhinella crucifer group includes five recognized species: Rhinella crucifer (Wied-Neuwied, 1821); R. ornata (Spix, 1824); R. henseli (A. Lutz, 1924); R. abei and R. pombali (Baldissera, Caramaschi & Haddad, 2004). The distribution of this group is associated to the Atlantic Rain Forest, from Ceará to Rio Grande do Sul, adjacent areas in Minas Gerais and São Paulo, Brazil. One species also occurs in Uruguay and northeastern Argentina, in the Misiones and Corrientes provinces (Baldissera et al. 2004; Frost 2011). Thomé et al. (2010) in a phylogeographic study of the Rhinella crucifer group identified two subclades in northeastern Brazil and adjacent areas: one ranging from Bahia to Paraíba and another from Minas Gerais to Espírito Santo. Of five species belonging to the R. crucifer group, only two have described tadpoles, R. ornata and R. pombali (Heyer et al. 1990, where the tadpole described as R. crucifer represents R. ornata; Lourenço et al. 2010). Here we described the tadpole of R. crucifer from a population from southern Bahia.

A new Holopothrips species (Thysanoptera: Phlaeothripidae) damaging Mollinedia (Monimiaceae) leaves in Southern Brazil

Zootaxa ◽  
2007 ◽  
Vol 1625 (1) ◽  
pp. 61-68 ◽  
Author(s):  
ADRIANO CAVALLERI ◽  
LUCAS A. KAMINSKI
Keyword(s):  
New Species ◽  
Intraspecific Variation ◽  
Rain Forest ◽  
Rio Grande ◽  
Atlantic Rain Forest ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Posterior Half ◽  
Anterior Half ◽  
A New Species

A new species of leaf-feeding thrips is described, from the Atlantic Rain Forest in Rio Grande do Sul State, Southern Brazil. Holopothrips claritibialis sp. nov. differs from other species of the genus in the combination of the following characteristics: all tibiae predominantly yellow; maxillary stylets retracted near the postocular setae; metanotum with reticulation, elongated on anterior half and equiangular on posterior half; pelta with equiangular reticulation medially but weak or absent laterally and posteriorly; glandular areas present on sternites VII–VIII in males (usually three glandular areas on each sternite). This species causes deformations and rolls on leaves of Mollinedia schottiana. Some aspects of the biology and intraspecific variation of this species are discussed.

Molecular Detection of Trypanosoma kaiowa in Tabanus triangulum (Diptera: Tabanidae) from the Coastal Plain of Rio Grande do Sul, Southern Brazil

2021 ◽  
Author(s):  
Gratchela D. Rodrigues ◽  
Eduardo Blodorn ◽  
Ândrio Zafalon-Silva ◽  
William Domingues ◽  
Roberta Marques ◽  
...  
Keyword(s):  
Coastal Plain ◽  
Molecular Detection ◽  
Rio Grande ◽  
Southern Brazil ◽  
Rio Grande Do Sul

Provenance of Heavy Minerals for the Quaternary Coastal Plain of Southernmost Brazil (Rio Grande do Sul State)

2019 ◽  
Vol 35 (2) ◽  
pp. 295
Author(s):  
Julierme Justin Carassai ◽  
Ernesto Luiz Correa Lavina ◽  
Farid Chemale Junior ◽  
Tiago Jonatan Girelli
Keyword(s):  
Coastal Plain ◽  
Rio Grande ◽  
Heavy Minerals ◽  
Rio Grande Do Sul

Three new species of Hyalella (Crustacea: Amphipoda: Hyalellidae) from the Southern Brazilian Coastal Plain

Zootaxa ◽  
2021 ◽  
Vol 4970 (2) ◽  
pp. 257-292
Author(s):  
JORDAN TUPARAI TALHAFERRO ◽  
ALESSANDRA ANGÉLICA DE PÁDUA BUENO ◽  
MATEUS MARQUES PIRES ◽  
CRISTINA STENERT ◽  
LEONARDO MALTCHIK ◽  
...  
Keyword(s):  
New Species ◽  
Body Surface ◽  
Coastal Plain ◽  
Rio Grande ◽  
Plumose Seta ◽  
The State ◽  
Rio Grande Do Sul ◽  
Santa Catarina ◽  
Smooth Body ◽  
Three New Species

In this study, three new species of Hyalella (Crustacea: Amphipoda: Hyalellidae) are described based on specimens collected in wetlands located in three freshwater ecoregions (Southeastern Mata Atlântica, Tramandaí-Mampituba and Laguna dos Patos) of the southern Brazilian Coastal Plain (states of Rio Grande do Sul and Santa Catarina). Hyalella minuana n. sp. was recorded in the southernmost region of the state of Rio Grande do Sul. This species is characterized by presenting smooth body surface, epimeral plates not acuminated, nine serrate setae on the inner face of gnathopod 1, and peduncle of uropod 3 with four cuspidate setae with accessory seta and without plumose seta on the margin of the telson. Hyalella lagoana n. sp. was recorded in the northern region of Rio Grande do Sul and southern region of Santa Catarina. This species shows body surface smooth, epimeral plates not acuminated, nine serrate setae on the inner face of gnathopod 1, peduncle of uropod 3 with five cuspidate setae with accessory seta, and telson with six cuspidate setae with accessory seta without plumose seta on the margins. Hyalella sambaqui n. sp. was recorded in the state of Santa Catarina. This species is characterized by presenting smooth body surface, epimeral plates not acuminated, six serrate setae on the inner face of gnathopod 1, peduncle of uropod 3 with three cuspidate setae with accessory seta, and telson with three cuspidate setae with accessory seta and four plumose setae on the margin of the telson.                The new records elevates the known diversity of species of Hyalella in the Brazilian territory to 33 species (19 in the southern Brazilian region) and to 83 species in the Americas. 

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