scholarly journals Mosquitoes (Diptera: Culicidae) in oviposition traps set in forest fragments of a semideciduous seasonal forest, Atlantic Forest domain, in the state of Rio Grande do Sul, Brazil

2021 ◽  
Vol 47 (2) ◽  
pp. 375-383
Author(s):  
Brenda Dessbesell Stahlhöfer ◽  
Alana Rafaela Borsekowsky
Keyword(s):  
Urban Area ◽  
Rural Area ◽  
Rio Grande ◽  
The State ◽  
Native Forest ◽  
Forest Fragments ◽  
Rio Grande Do Sul ◽  
Forest Fragment ◽  
Good Ability ◽  
Semideciduous Seasonal Forest

This study aimed to compare the mosquito fauna found in three remnant forest fragments of a semideciduous seasonal forest by using oviposition traps in the northwestern region of the state of Rio Grande do Sul, Brazil. Between 2018 and 2019, larvae were collected quarterly in three forest fragments, one situated in an urban area, another in a rural area close to the city and a third formed by an extensive area of native forest far from the urban environment. Four species were caught: Aedes terrens (Walker, 1856) (282), Limatus durhamii Theobald, 1901 (30), Aedes aegypti (Linnaeus, 1762) (23) and Toxorhynchites theobaldi (Dyar and Knab, 1906) (6). The Morisita-Horn index indicated a high similarity between the fragments studied (>80%). The mean number of mosquitoes collected. in the rural area was significantly higher than in the other areas (F = 6.073; d.f. = 17; p <0.05). The calculation of the phi coefficient to assess the co-occurrence of two species in the same trap did not indicate significant values (p> 0.05). Aedes terrens demonstrated a good ability to colonize and inhabit the different types of forest fragments studied. In addition, the forest fragment located in a rural area close to the urban area offered conditions for the survival of species of wild and urban mosquitoes, such as Ae. aegypti.

scholarly journals Diversity of Odonata (Insecta) in Seasonal Deciduous Forest fragments in southern Brazil (state of Rio Grande do Sul), with a new record for the state and comments on the seasonal distribution of the species

2019 ◽  
Vol 19 (4) ◽  
Author(s):  
Mateus Marques Pires ◽  
Carla Bender Kotzian ◽  
Cleber Sganzerla ◽  
Gabriel Prass ◽  
Marina Schmidt Dalzochio ◽  
...  
Keyword(s):  
Deciduous Forest ◽  
Rio Grande ◽  
Seasonal Distribution ◽  
The State ◽  
Seasonal Patterns ◽  
Forest Fragments ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Farm Ponds ◽  
First Occurrence

Abstract: We present an Odonata (Insecta) check list of species occurring in a fragment of the Seasonal Deciduous Forest (Atlantic Forest biome) from the central region of the state of Rio Grande do Sul (RS), southern Brazil, along with a list of the odonate species recorded in this phytoecological region for the state. In addition, we provide comments on the seasonal distribution of the species occurring in the study area. Two streams and seven farm ponds located in the middle course of the Jacuí River basin were surveyed between December 2007 and February 2009. Overall, we recorded 49 species from 21 genera and six families. Argia serva Hagen in Selys, 1865 (Coenagrionidade) had its first occurrence record mentioned for the state, elevating to 183 the total number of Odonata species occurring in Rio Grande do Sul. The number of species recorded in the study area corresponds to ~26% of the known Odonata diversity in RS. Libellulidae was the most species-rich family (22 species, ~45% of the total), followed by Coenagrionidae (18 species, 37% of the total). The checklist for the Seasonal Deciduous Forest in RS indicated the occurrence of 83 species of Odonata in this phytoecological region (~45% of the known odonate species in the state). This elevated diversity could be related to the density of the vegetation structure. In the study area, 20 species were found in streams, and 45 in farm ponds. Species occurrence showed marked seasonal patterns in the study area, with 88% of the species recorded from summer to autumn, and no species detected in streams in the winter. Moreover, 70% of the species were recorded in either one or two seasons in farm ponds, while 65% occurred solely in one season in streams. This result indicates that the life cycle of Odonata in southern Brazil is strongly influenced by seasonal patterns in temperature.

scholarly journals Spatial Analysis of Forest Fragmentation in the Atlantic Forest Bioma Areas

2018 ◽  
Vol 10 (12) ◽  
pp. 294
Author(s):  
Juliana Marchesan ◽  
Rudiney Soares Pereira ◽  
Elisiane Alba ◽  
Letícia Daiane Pedrali
Keyword(s):  
Spatial Analysis ◽  
Forest Fragmentation ◽  
Atlantic Forest ◽  
Matrix Effects ◽  
Rio Grande ◽  
Area Ratio ◽  
Native Forest ◽  
Forest Fragments ◽  
Rio Grande Do Sul ◽  
R Language

The goal of this work was to calculate landscape ecology metrics using the R language, allowing the analysis of forest fragments under the Atlantic Forest domain located in the sub-basin of Arroio Jaquirana, Rio Grande do Sul, Brazil. For the mapping of the forest fragments, we used images from the REIS/RapidEye sensor dated 2016, and the classification was supervised through the Bhattacharya algorithm. The fragments were analyzed in seven size classes, to separate them and to calculate the landscape metrics it was used R language. The results attained demonstrated that the native forest occupied 34.01% of the study area, covering a total of 1,995 fragments, of which 93.43% were less than 5 ha. The highest values of edge and perimeter-area ratio were found in the small fragments indicating a greater edge effect, with the central areas of these remnants being exposed to the external matrix effects. Thus, it is concluded that the Atlantic Forest is highly fragmented and is extremely important to establish measures to minimize the effects and/or increase the connectivity between the fragments through ecological corridors using the smaller fragments, in addition, it makes necessary the development of public policies and research for the management of the region in order to preserve the remnants.

A ELEVAÇÃO DO HOMEM RURAL: institutos de educação rural e a cooperação da Misereor

2017 ◽  
Vol 14 (23) ◽  
pp. 80-104
Author(s):  
DOUGLAS ORESTES FRANZEN
Keyword(s):  
Rural Education ◽  
Rural Area ◽  
Catholic Church ◽  
Rio Grande ◽  
Social Position ◽  
The State ◽  
Rio Grande Do Sul ◽  
The Social ◽  
The Face ◽  
The Catholic Church

 O artigo analisa a gênese de implantação dos Institutos de Educação Rural no Rio Grande do Sul através da cooperação da Misereor na década de 1970. A proposta é de correlacionar realidades locais diante de uma conjuntura mais abrangente que condicionou a postura social da Igreja Católica bem como influenciou nas demandas do espaço rural do estado. Defende-se a ideia de que os Institutos de Educação Rural representaram uma proposta de modernização da agricultura sob a tutela do catolicismo.  Palavras-chave: Misereor. Catolicismo. FAG. Instituto de Educação Rural.THE ELEVATION OF RURAL MAN:  institutes of rural education and the cooperation of MisereorAbstract: The article analyzes the genesis of implantation of the Institutes of Rural Education in Rio Grande do Sul through the cooperation of Misereor in the 1970s. The proposal is to correlate local realities in the face of a more extensive context that conditioned the social position of the Catholic Church as well as influenced the demands of the rural area of the state. It ´s defended the idea that the Institutes of Rural Education represented a proposal of modernization of the agriculture under the tutelage of the Catholicism.Keywords: Misereor. Catholicism. FAG. Institut of Rural Education.LA ELEVACIÓN DEL HOMBRE RURAL:  institutos de educación rural y la cooperación de Misereor  Resumen: El artá­culo analiza la génesis de la aplicación de los Institutos de Educación Rural en Rio Grande do Sul a través de la cooperación de Misereor en la década de 1970. La propuesta consiste en correlacionar las realidades locales que enfrentan un contexto más amplio que condicionó la posición social de la Iglesia Católica e influyó en las demandas de espacio de estado rural. Se defiende la idea de que los Institutos de Educación Rural representaban una propuesta de modernización de la agricultura bajo la tutela del catolicismo.Palabras clave: Misereor. Catolicismo. FAG. Instituto de Educación Rural.

scholarly journals New record and occurrence map of Tityus serrulatus Lutz & Mello, 1922 (Scorpiones, Buthidae) in the state of Rio Grande do Sul, southern Brazil

Check List ◽  
2015 ◽  
Vol 11 (1) ◽  
pp. 1556 ◽  
Author(s):  
Conrado Mario da Rosa ◽  
Arthur Diesel Abegg ◽  
Leandro Malta Borges ◽  
Gabriela S. S Bitencourt ◽  
Rocco Alfredo Di Mare
Keyword(s):  
Urban Area ◽  
Central Region ◽  
New Record ◽  
Rio Grande ◽  
The State ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Tityus Serrulatus ◽  
First Time ◽  
Santa Maria

The Brazilian scorpion Tityus serrulatus is recorded for the first time in the central region of Rio Grande do Sul, thus filling a gap of 567 km in its distribution. A specimen of the scorpion was collected in the urban area of the municipality of Santa Maria (29°43′51.31″ S, 053°48′5.74″ W) on 31 June 2014. A map was generated with the points of occurrence of the species in the state.

scholarly journals Butterflies (Lepidoptera: Papilionoidea and Hesperioidea) from two forest fragments in northern Rio Grande do Sul, Brazil

Check List ◽  
2009 ◽  
Vol 5 (4) ◽  
pp. 819 ◽  
Author(s):  
Dayana Bonfantti ◽  
Rocco Alfredo Di Mare ◽  
Ricardo Giovenardi
Keyword(s):  
Rio Grande ◽  
The State ◽  
Atlantic Rainforest ◽  
Forest Fragments ◽  
Rio Grande Do Sul ◽  
Systematic Survey ◽  
The City ◽  
Northern Rio Grande

Aiming to contribute to the knowledge concerning diversity of the butterflies in the Atlantic Rainforest of the state of Rio Grande do Sul, a systematic survey was carried out in the city of Frederico Westphalen from November 2006 to June 2007, in two sampling localities. The total sampling efforts was 80 h, in which 1.785 samples were recorded, distributed in 161 species. From the latter, 51.57 % (83) belongs to the Nymphalidae family, Hesperiidae 20.49 % (33), Pieridae 8.69 % (14), Riodinidae 6.83 % (11), Papilionidae 6.21 % (10), Lycaenidae 6.21 % (10). Regarding the sampled species, 79.50 % (128) were recorded at both studied sites.

scholarly journals Occurrence of beetles (Insecta: Coleoptera) in mosquito ovitraps (Diptera: Culicidae, Culicinae) in an Atlantic Forest fragment

2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Emili Bortolon dos Santos ◽  
Pedro Giovâni da Silva ◽  
Mario Arthur Favretto ◽  
Gerson Azulim Müller
Keyword(s):  
Atlantic Forest ◽  
Rio Grande ◽  
First Record ◽  
The State ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Forest Fragment ◽  
The Family

Ovitraps are generally used to collect immatures of Culicinae (Diptera: Culicidae). This study reports eight species of beetles found in ovitraps placed in an Atlantic Forest fragment in the state of Rio Grande do Sul, Southern Brazil. Seven species were classified in the family Scarabaeidae (subfamily Scarabaeinae), and one species in the family Hybosoridae (subfamily Hybosorinae). The first record of Canthon angularis Harold, 1868 in Rio Grande do Sul state is also documented.

scholarly journals The drosophilid fauna (Diptera, Drosophilidae) of the transition between the Pampa and Atlantic Forest Biomes in the state of Rio Grande do Sul, southern Brazil: first records

2010 ◽  
Vol 50 (19) ◽  
pp. 286-295 ◽  
Author(s):  
Cleverton J.C. Hochmüller ◽  
Marcelo Lopes-da-Silva ◽  
Vera L.S. Valente ◽  
Hermes J. Schmitz
Keyword(s):  
Urban Area ◽  
Atlantic Forest ◽  
Riparian Forest ◽  
Rio Grande ◽  
First Record ◽  
The State ◽  
Rio Grande Do Sul ◽  
Present Survey ◽  
Forested Area ◽  
Northwestern Region

Although studies on drosophilid (Diptera, Drosophilidae) assemblages have become relatively abundant in the past decades, many environments remain to be searched. The present study investigates the composition, the species abundances and the richness of the drosophilid assemblages in two localities of the municipality of Cruz Alta, northwestern region of the state of Rio Grande do Sul, a point of contact between the biomes Atlantic Forest and Pampa: (i) an urban area (2007), constituted by a domestic orchard with Citrus trees, and (ii) a forested area, in Centro de Educação, Pesquisa e Proteção Ambiental - CEPPA (2008/2009), of Universidade de Cruz Alta, located in a fragment of riparian forest. Collections were conducted using fermented banana-baited traps and repeated periodically. A total of 7,428 individuals were caught, belonging to two subfamilies, six genera and 53 species. In the urban area, 22 species were found, from two genera (N = 2,421), while in the forested area 46 species were found, from six genera (N = 5,007). Six exotic species were found, markedly more abundant in the urban area, where they corresponded to 95% of the specimens, in comparison to 50% in the forest. Between the Neotropical species, the most common were Drosophila maculifrons Duda and D. polymorpha Dobzhansky & Pavan. Only D. simulans Sturtevant was captured in all samples in both localities. The present survey represents the first records for the state of Rio Grande do Sul of the D. canalinea and D. virilis species groups and the species D. arassari Cunha & Frota-Pessoa, D. fuscolineata Duda, D. nigricruria Patterson & Mainland, D. papei Bächli & Vilela, D. senei Vilela, D. trifilum Frota-Pessoa, D. virilis Sturtevant, Leucophenga maculosa (Coquillett) and Rhinoleucophenga obesa (Loew). Furthermore, it also represents the first record for the state of the genera Amiota Loew, Leucophenga Mik and Rhinoleucophenga Hendel and of the subfamily Steganinae. So, the present survey raises the number of drosophilid species recorded for the state from 66 to 75, the number of genera from five to eight, and subfamilies from one to two.

scholarly journals Crustacea, Isopoda, Oniscidea Latreille, 1802: new continent record and distribution extension in Brazil

Check List ◽  
2010 ◽  
Vol 6 (2) ◽  
pp. 217 ◽  
Author(s):  
Mariana Juventina Magrini ◽  
Paula Beatriz Araujo ◽  
Marcio Uehara-Prado
Keyword(s):  
Rio Grande ◽  
Sao Paulo ◽  
The State ◽  
Southeastern Brazil ◽  
Pitfall Traps ◽  
São Paulo ◽  
Undescribed Species ◽  
Rio Grande Do Sul ◽  
Serra Do Mar ◽  
First Time

Terrestrial Isopods were sampled in four protected Atlantic Forest areas located in Serra do Mar, state of São Paulo, southeastern Brazil. A total of 2,217 individuals of six species (Atlantoscia sp., Benthana werneri, Pseudodiploexochus tabularis, Pudeoniscus obscurus, Styloniscus spinosus and Trichorhina sp.) were captured in pitfall traps. The exotic species S. spinosus is recorded for the first time for the Americas. Another introduced species, P. tabularis, previously recorded only from the state of Rio Grande do Sul, had its geographic distribution extended to the state of São Paulo. The most abundant isopods in this study belong to an undescribed species of Atlantoscia.

Epidemiology of influenza B infection in the state of Rio Grande do Sul, Brazil, from 2003 to 2019

2021 ◽  
Author(s):  
Marina Beretta Duarte ◽  
Tatiana Schäffer Gregianini ◽  
Letícia G. Martins ◽  
Ana Beatriz G. Veiga
Keyword(s):  
Rio Grande ◽  
The State ◽  
Influenza B ◽  
Rio Grande Do Sul
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