scholarly journals Fern and lycophytes of the Taquari River riparian forests at different stages of succession

Rodriguésia ◽  
2021 ◽  
Vol 72 ◽  
Author(s):  
Fernanda Bruxel ◽  
Michelle Helena Nervo ◽  
Elisete Maria de Freitas
Keyword(s):  
Rio Grande ◽  
Intermediate Stage ◽  
Common Species ◽  
Riparian Forests ◽  
Advanced Stage ◽  
Rio Grande Do Sul ◽  
Initial Stage ◽  
River Region ◽  
Ferns And Lycophytes ◽  
Randomized Test

Abstract Riparian forests are important biodiversity corridors among groups. Such forests were greatly altered or suppressed in the state of Rio Grande do Sul. This study investigates the variation of species richness and distribution of ferns and lycophytes of eighteen study areas at different stages of succession in riparian forests of the Taquari River region. Fern and lycophyte samples were collected using the pathway methodology along the Taquari River during two years. The richness was compared at the different succession stages (advanced remnant formations, intermediate and initial) through analysis of variance and a randomized test, in which about 22 species were recorded: 19 species were at the advanced stage of succession, nine species were at the intermediate stage and seven species were at the initial stage of succession. The average richness was significantly higher in areas at advanced stage of succession. The high value of common species found at intermediate stages highlights the importance of preserving riparian forests at all stages of succession in the Taquari River as alternative for preserving the local biodiversity.

scholarly journals Frugivory and seed dispersal of Solanum granuloso-leprosum Dunal (Solanaceae) by birds in deciduous seasonal forest

2016 ◽  
Vol 76 (4) ◽  
pp. 818-823 ◽  
Author(s):  
F. A. F. Jacomassa
Keyword(s):  
Deciduous Forest ◽  
Bird Species ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Forest Fragment ◽  
Fruit Removal ◽  
Feeding Behaviors ◽  
River Region ◽  
Strong Competition ◽  
Uruguay River

Abstract The goal of this study was to identify which bird species consume Solanum granuloso-leprosum fruits and disperse its seeds. 60 hours of focal observations were carried out between April and May 2006 on the edge of a deciduous forest fragment in the Uruguay River region, Rio Grande do Sul state, Brazil. Ten species were observed in total removing 443 fruits. Saltator similis removed 61.8% of the fruits, followed by Tangara sayaca (17.1%), Pipraeidea bonariensis (11.7%), and T. preciosa (6.8%), while the remaining six species accounted for only 2.5% of the fruits removed. Most fruit removal occurred early in the day or mid-afternoon. The most common feeding behaviors were picking (60.7%), followed by stalling (23%) and hovering (16%). Birds flew more than 10 m from the fruit plant in 62% of the removal events. All bird species observed here may be considered potential dispersers of S. granuloso-leprosum, as they moved the seeds away from the mother plant where strong competition and predation are likely to occur. Results also suggest that S. granuloso-leprosum may be useful in ecological restoration programs.

The tadpole of the hylodid frog Hylodes charadranaetes Heyer and Cocroft, 1986

Zootaxa ◽  
2010 ◽  
Vol 2680 (1) ◽  
pp. 65
Author(s):  
PAULO NOGUEIRA COSTA ◽  
CARLA COSTA SIQUEIRA ◽  
DAVOR VRCIBRADIC ◽  
LUIZ NORBERTO WEBER ◽  
CARLOS FREDERICO D. ROCHA
Keyword(s):  
Rio Grande ◽  
Species Group ◽  
Minas Gerais ◽  
Riparian Forests ◽  
Atlantic Rainforest ◽  
Rio Grande Do Sul ◽  
Campos Rupestres ◽  
Eastern Brazil ◽  
Minas Gerais State ◽  
Species Groups

The genus Hylodes Fitzinger, 1826 is restricted to eastern Brazil, occurring from the states of Espírito Santo to Rio Grande do Sul (Lingnau et al. 2008, Frost 2010). Except for Hylodes otavioi, which inhabits riparian forests in rocky fields (“campos rupestres”) habitats within the Cerrado domain in Minas Gerais State (Sazima & Bokermann 1982), all other species in the genus are endemic to the Atlantic Rainforest domain (Lingnau et al. 2008). The genus currently comprises 24 species (Frost 2010) of small to medium-sized diurnal frogs that live associated to lotic streams in forests (e.g. Lingnau et al. 2008; Silva & Benmaman 2008). Heyer (1982) proposed four species groups for Hylodes, which are still recognized today (but see Haddad et al. 1996; Canedo & Pombal 2007): the glaber (formerly pulcher), lateristrigatus, mertensi, and nasus species groups. The Hylodes lateristrigatus species group is the most specious, being currently composed by 18 species: H. amnicola Pombal, Feio, and Haddad, 2002, H. babax Heyer, 1982, H. charadranaetes Heyer and Cocroft, 1986, H. fredi Canedo and Pombal, 2007, H. heyeri Haddad, Pombal, and Bastos, 1996, H. lateristrigatus (Baumann, 1912), H. magalhaesi (Bokermann, 1964), H. meridionalis (Mertens, 1927), H. ornatus (Bokermann, 1967), H. otavioi Sazima and Bokermann, 1983, H. perere Silva & Benmaman, 2008, H. perplicatus (Miranda-Ribeiro, 1926), H. pipilans Canedo and Pombal, 2007, H. phyllodes Heyer and Cocroft, 1986, H. regius Gouvêa, 1979, H. sazimai Haddad and Pombal, 1995, H. uai Nascimento, Pombal, and Haddad, 2001, and H. vanzolinii Heyer, 1982 (Silva & Benmaman 2008; Frost 2010).

Araneid orb-weavers (Araneae, Araneidae) associated with riparian forests in southern Brazil: a new species, complementary descriptions and new records

Zootaxa ◽  
2011 ◽  
Vol 2759 (1) ◽  
pp. 60 ◽  
Author(s):  
EVERTON NEI LOPES RODRIGUES ◽  
MILTON DE S. MENDONÇA, JR.
Keyword(s):  
New Species ◽  
New Records ◽  
Rio Grande ◽  
Terrestrial Ecosystems ◽  
Riparian Forests ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
First Time ◽  
One New Species ◽  
A New Species

The Araneidae is a speciose family including web-spinning spiders that are very abundant in various terrestrial ecosystems. Sixty-five araneid species from 20 genera were collected during an inventory of riparian forests in southern Brazil. Among these were one new species, described here as Mangora piratini sp. nov. Also discovered were the previously unknown males of Alpaida citrina (Keyserling, 1893), A. octolobata Levi, 1988 and Testudinaria lemniscata (Simon, 1895), which are described here for the first time. Metazygia floresta Levi, 1995, Ocrepeira malleri Levi, 1993 and Testudinaria quadripunctata Taczanowski, 1879 are recorded for the first time for Rio Grande do Sul State, Brazil.

scholarly journals Ferns and lycophytes from Ferradura Park, Canela (RS), Brazil

Lilloa ◽  
2021 ◽  
pp. 1-14
Author(s):  
Tamara J. Falavigna ◽  
Carlos R. Lehn ◽  
Marcelo D. Arana
Keyword(s):  
Species Richness ◽  
Rare Species ◽  
Life Form ◽  
Deciduous Forest ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Araucaria Forest ◽  
Transition Zones ◽  
Ombrophilous Forest ◽  
Ferns And Lycophytes

A list of ferns and lycophytes from Ferradura Park, a private park located in Canela, Rio Grande do Sul, Brazil is presented. The park has an area of 400 ha with forest formations such as Araucaria Forest, Mixed Ombrophilous Forest and Seasonal Deciduous Forest, with transition zones and areas at different stages of regeneration. We found 56 species (five lycophytes and 51 ferns) in Ferradura Park. Lycophytes are represented by two families (Lycopodiaceae and Selaginellaceae) and four genera, while 11 families and 33 genera were recorded for ferns. Most of the species are exclusively terrestrial (39 spp.). The predominant life form is hemicriptophytic with rosulate growth (27 spp.). Phlegmariurus heterocarpon, Polytaenium lineatum and Vittaria lineata are considered locally rare. The area presents 15% of the species richness of the State of Rio Grande do Sul including rare species, which highlights the importance of implementing effective actions for the continuing Park conservation.

scholarly journals First records of Casiornis rufus (Vieillot, 1816) (Aves, Tyrannidae) for the state of Rio Grande do Sul, southern Brazil

Check List ◽  
2015 ◽  
Vol 11 (3) ◽  
pp. 1664 ◽  
Author(s):  
Jeferson Vizentin-Bugoni ◽  
Danielle Bellagamba-Oliveira ◽  
Gina Bellagamba ◽  
Ricardo Oliveira de Oliveira ◽  
Fernando Jacobs ◽  
...  
Keyword(s):  
South America ◽  
Rio Grande ◽  
The State ◽  
Riparian Forests ◽  
Rice Fields ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Central South

The Rufous Casiornis, Casiornis rufus (Vielliot, 1916), is widespread in central South America, reaching its southernmost distribution in northern Argentina and Uruguay. Here we present the first nine records of the species for Rio Grande do Sul state, southern Brazil. The records were documented with photographs and consisted mostly of lone individuals observed in riparian forests inserted in a matrix of grasslands and rice fields. The Rufous Casiornis apparently occurs in very low densities in the region. More observations are needed to elucidate its status of occurrence in Rio Grande do Sul.

scholarly journals Estudo anatômico do xilema secundário de Acacia ibirocayensis Marchiori (Leguminosae Mimosoideae)

1993 ◽  
Vol 15 (15) ◽  
pp. 149 ◽  
Author(s):  
José Newton Cardoso Marchiori
Keyword(s):  
Rio Grande ◽  
Anatomical Structure ◽  
Rio Grande Do Sul ◽  
Axial Parenchyma ◽  
Vascular Elements ◽  
River Region ◽  
Microscopic Features ◽  
Perforation Plates

This paper deals with the description of the general, macroscopic and microscopic features of the wood of Acacia ibirocayensis Marchiori, a small shrub native on rocky hills of the Ibirocay river region, southwestern of Rio Grande do Sul State, Brazil. The anatomical structure showed very short vascular elements, exclusively simple perforation plates, alternate and vestured intervascular pits, paratracheal irregularly-banded axial parenchyma, homogeneous rays and libriform non-septated fibres. The wood is analysed, being considered some anatomical charactes of taxonomic, phylogenetic and ecophysiological value.

Estudo da Dispersão do Monóxido de Carbono Associado a Emissão Veicular na Região Metropolitana de Porto Alegre com o Sistema de Modelagem Numérica CCATT - BRAMS

2020 ◽  
Author(s):  
Karen Leandra ávila da Silva ◽  
Marcelo Félix Alonso ◽  
Sabrina Feltes de Moura ◽  
Túlio Felipe Verdi Filho
Keyword(s):  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Porto Alegre

Resumo O monitoramento contínuo da qualidade do ar local é extremamente importante para a gestão ambiental de uma cidade, mas nem sempre viável pelo alto custo dos equipamentos. Por conta disso, investe-se muito na utilização da modelagem numérica no estudo da qualidade do ar, que é altamente dependente de inventários de emissões dos poluentes e seus precursores. Nesse contexto o objetivo deste trabalho foi realizar um estudo da dispersão do monóxido de carbono (CO) na Região Metropolitana de Porto Alegre, no estado do Rio Grande do Sul, utilizando o sistema de modelagem numérica CCATT-BRAMS, com ênfase nas fontes veiculares. Foram analisados dois períodos - janeiro de 2009 e janeiro de 2016 - utilizando-se as informações dos inventários de gases precursores elaborados pela FEPAM para os anos base de 2009 e 2013, respectivamente, distribuídos espacialmente com o auxílio do pré-processador de emissões PREP-CHEM-SRC utilizado pelo CCATT-BRAMS. No geral, as simulações representaram coerentemente os dados observados pela rede de monitoramento, com RMSE abaixo de 0,3 na maioria das estações avaliadas. Análises de sensibilidade também revelaram que, para o período avaliado, aproximadamente 40% da concentração de CO sobre a cidade de Porto Alegre foi devido ao transporte de larga escala, proveniente das cidades localizadas ao norte, dentro da Região Metropolitana.

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