The carbonate buildups along the northern coast of the State of Bahia, Brazil

2020 ◽  
pp. 159-190 ◽  
Author(s):  
Marjorie Cseko Nolasco ◽  
Zelinda Margarida De Andrade Nery Leão
Keyword(s):  
The State ◽  
Northern Coast ◽  
Carbonate Buildups

scholarly journals Composition and diversity of anurans in the Restinga of the Conde municipality, northern coast of the state of Bahia, northeastern Brazil

2016 ◽  
Vol 16 (3) ◽  
Author(s):  
Felipe Augusto Trindade Gondim-Silva ◽  
Alessandra Rodrigues Santos Andrade ◽  
Rafael Oliveira Abreu ◽  
Jamile Santos Nascimento ◽  
Geovane Paixão Corrêa ◽  
...  
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Species Composition ◽  
Rainy Season ◽  
Dominant Species ◽  
The State ◽  
Northeastern Brazil ◽  
Freshwater Wetland ◽  
Northern Coast ◽  
Anuran Species

Abstract The Conde municipality is located in the northern coast of the state of Bahia (NC), northeastern Brazil, and is part of the Atlantic Tropical domain. The anuran fauna of the northern portion of the NC is still poorly known if compared to the southern portion. The Restinga is one of the predominant environments of the coastal plains of the NC and it is characterized essentially by presenting sandy soil covered by herbaceous and shrubby vegetation. The objective of this study was to determine the anuran species composition and diversity for the Restinga of the Conde municipality. Sampling was carried out at night by active search over four periods of five consecutive days each, two over the 'main rainy season' and two in a 'lesser rainy season', using 14 sample units (SUs) and five extra sample plots (EPs). We calculated dominance and species diversity using the Berger-Parker and Shannon-Wiener H' indices, respectively. We used accumulation curves and the Jackknife 1 estimator to estimate anuran species richness, considering only the data obtained from the SUs. We recorded 713 anuran specimens distributed within 33 species, 13 genera and five families (Bufonidae, Craugastoridae, Hylidae, Leptodactylidae and Microhylidae). The Hylidae and Leptodactylidae families had the highest species richness. Considering only the SUs (Jackknife 1 estimator in brackets), we recorded 28 species in the study area (33.9 ± 2.3), 13 in Shrubby Vegetation Zones - SVZ (20.8 ± 2.9) and 25 in Freshwater Wetland Zones - FWZ (28.9 ± 1.9). The abundance and species diversity of the FWZ (n = 638 specimens; H'= 2.4) were higher than those recorded for the SVZ (n = 52 specimens; H' = 1.9). The SVZ and FWZ showed distinct dominant species, wherein Pristimantis paulodutrai was the dominant species in SVZ and Scinax fuscomarginatus in FWZ. The Restinga of the Conde municipality stands out as the one with the highest anuran species richness already recorded considering only SVZ and FWZ. Moreover, its anuran species composition represented 55% of the anuran species known for the NC and included taxa common to three different morphoclimatic domains (Tropical Atlantic, Cerrado and Caatinga).

scholarly journals Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil

2008 ◽  
Vol 25 (2) ◽  
pp. 159-164 ◽  
Author(s):  
Diana G. Lunardi ◽  
Márcia H. Engel ◽  
Regina H. F. Macedo
Keyword(s):  
Group Composition ◽  
Coastal Areas ◽  
Reproductive Period ◽  
The State ◽  
Megaptera Novaeangliae ◽  
Humpback Whales ◽  
Behavior Patterns ◽  
Northern Coast ◽  
Behavioral Differences

Behavior of humpback whales was observed during the reproductive period off the northern coast of the state of Bahia (NB, n = 378 groups) and at the Abrolhos Bank (AB, n = 919) to compare patterns and group composition between the two locations. Alone individuals and dyads were most often encountered in both areas, although mother-calf pairs were more common in AB. While these two regions comprise distinct concentrations of humpback whales, with intrinsic environmental differences, behavior patterns were quite similar. The only behavioral differences found where for "tail up" and "resting". The patterns found here may reflect differences in the protection status of the areas or intrinsic environmental differences.

scholarly journals Cigarrinhas dos Citros, Vetoras da Bactéria Xylella fastidiosa Wells et al.: Pragas Potenciais para a Citricultura Sergipana

2015 ◽  
Vol 8 (1) ◽  
pp. 01-07
Author(s):  
Ruberval Leone Azevedo ◽  
Marcel Faria Lima
Keyword(s):  
Xylella Fastidiosa ◽  
Sao Paulo ◽  
The State ◽  
Northern Coast ◽  
São Paulo ◽  
Citrus Industry ◽  
National Production ◽  
Potential Pest ◽  
The Many

A citricultura no Brasil exerce um papel de grande importância econômica, social, gerando empregos, renda e desenvolvimento. O Brasil é o maior produtor mundial de citros, o Estado de Sergipe destaca-se em 5º lugar nacional em produção. Dentre os vários problemas fitossanitários enfrentados pela citricultura brasileira está a Clorose Variegada dos Citros (CVC), conhecida como amarelinho, causada pela bactéria Xylella fastidiosa Wells et al. A CVC foi identificada oficialmente no Brasil, em 1987, em pomares do Triângulo Mineiro e do Norte e Noroeste do Estado de São Paulo. No Nordeste, foi constatada em 1996 em Sergipe no município de Boquim, e em 1997 na Bahia, nos municípios de Rio Real e Itapicuru. O objetivo foi revisar a literatura sobre as espécies de cigarrinhas vetores da CVC, e verificar se ocorrem no estado de Sergipe. Os primeiros sintomas são vistos nas folhas, passam posteriormente para os frutos e acabam afetando toda a planta, e para serem percebidos pode levar entre 5 meses e 2 anos. Os principais vetores da X. fastidiosa em citros são as cigarrinhas da família Cicadellidae. No Brasil já foram confirmadas 12 espécies de cigarrinhas vetoras. Para o estado de Sergipe, são escassas a informações sobre Cicadellidae vetoras, os dados são limitados ao Litoral Norte da Bahia, com exceção de vaga citação sobre quatro gêneros (Oncometropia, Acrogonia, Dilobopterus e Homolodisca) e três espécies (Homolodisca ignorata Melichar, Acrogonia sp. e Homolodisca spottii Takiya, Cavichioli & McKamey). Citrus leafhoppers, Vectors of of Bacterium Xylella fastidiosa Wells et al.: Potential Pest of Citrus Crops in Sergipe State Abstract. The citrus industry in Brazil plays a role of great economic, social, generating jobs, income and development. Brazil is the largest producer of citrus, the State of Sergipe stands out in 5th place in national production. Among the many pest problems faced by Brazilian citrus is Citrus Variegated Chlorosis (CVC), known as the yellowing caused by the bacterium Xylella fastidiosa Wells et al. The CVC was officially identified in Brazil in 1987, in orchards of “Triângulo Mineiro” and North and northwest of the state of São Paulo. In the Northeast Region of Brazil, was found in 1996 in the municipality of Boquim Sergipe, and Bahia in 1997, the municipalities of Rio Real and Itapicuru. The aim was to review the literature on the species of leafhoppers vectors of CVC, and verify that occur in the state of Sergipe. The first symptoms are seen in the leaves, then go for the fruits and end up affecting the entire plant, and to be perceived can take between five months and two years. The main vectors of X. fastidiosa in citrus are the sharpshooters of the family Cicadellidae. In Brazil 12 sharpshooters species have already been confirmed. For the state of Sergipe, is scarce information about the Cicadellidae vectors, the data are limited to the northern coast of Bahia, except for vague quote about four genus (Oncometropia, Acrogonia, Dilobopterus and Homolodisca) and three species (Homolodisca ignorata Melichar, Acrogonia sp. and Homolodisca spottii Takiya, Cavichioli & McKamey).

scholarly journals Turismo de base comunitária na Costa Verde (RJ): caiçaras, quilombolas e indígenas

2017 ◽  
Vol 10 (2) ◽  
Author(s):  
Teresa Cristina de Miranda Mendonça ◽  
Renato de Oliveira dos Santos ◽  
Paloma Cristina Barbosa Lopes ◽  
Sandro dos Reis Andrade ◽  
Ana Paula Veríssimo de Moraes
Keyword(s):  
Indigenous Peoples ◽  
Rio De Janeiro ◽  
The State ◽  
Northern Coast ◽  
Economic Activities ◽  
Conservation Units ◽  
Community Based ◽  
Population Means ◽  
Use Of Resources ◽  
The Right

Descrevendo o turismo no estado do Rio de Janeiro, destaca-se o seu litoral. Parte desta área integra a região turística denominada Costa do Sol (litoral norte) e a Costa Verde (litoral sul). Pode-se assim,remeter à ideia de apropriação do espaço litorâneo pela prática turística e aos conflitos existentes entre as populações locais e às novas lógicas do capital que se inserem na região. Este trabalho tem como foco de pesquisa a região da Costa Verde, que sofreu influencia do turismo a partir da década de 1970 com a inauguração do trecho Rio-Santos da BR101. Com a estrada chegaram à especulação imobiliária e consequente expulsão dos nativos, e também a instituição das leis ambientais como a criação de unidades de conservação da natureza de proteção integral. No entanto, nesta região estão presentes diversos grupos tradicionais: indígenas, caiçaras e quilombolas que lutam pelo reconhecimento de seu território, contra a expulsão do local herdado e os limites de utilização dos recursos impostos pelas unidades de proteção. Além disto, reivindicam serem incluídos no mapa do turismo da região. Como grande protagonista local foi criado, em 2007, o Fórum de comunidades Tradicionais Angra dos Reis, Paraty e Ubatuba - FCT que traz à tona questões diversas que permeiam a vida de todos que vivem neste local. Na reivindicação pela visibilidade ligada ao turismo foi elaborado o mapa de turismo de base comunitária - TBC do Fórum em 2015. Assim, tendo como metodologia de pesquisa exploratória e descritiva utilizando o método qualitativo (pesquisa documental, bibliográfica e de campo), este trabalho tem como objetivo investigar, do ponto de vista sociocultural e político-organizacional, como se constitui o TBC no território abrangido pelo FCT, porém tendo como foco de análise três iniciativas: a comunidade caiçara de São Gonçalo (Paraty), Quilombo Bracuí e Aldeia Sapukai, ambas localizadas em Angra dos Reis. O resultado traz reflexões sobre o TBC e suas correlações com alguns temas: populações tradicionais; resistência cultural, territorial e econômica; permanência no território tradicional; valorização da identidade e história local; o direito pela prática das atividades econômicas tradicionais e do turismo.Ou seja, ser uma população tradicional significa uma forma de resistência, que transforma experiências locais em turismo. Um turismo denominado localmente de TBC que significa também incluir no mapa do estado os grupos sociais “invisíveis”. Assim constata-se que estas iniciativas estão ligadas a um movimento político e social que tem o turismo como ferramenta de poder. Community-based tourism in Costa Verde (RJ): caiçaras, quilombolas and indigenous peoples ABSTRACT The coastline stands out in the description of tourism in the state of Rio de Janeiro (Brazil). Part of this area comprises the tourist regions of Costa do Sol (northern coast) and Costa Verde (southern coast). They are related to the ideas of appropriation of the coastal space by tourist practice and the conflicts among local populations and the new logics of the capital inserted in the region. This study discusses the Costa Verde region which was influenced by tourism from the 70s with the opening of the Rio-Santos stretch of the BR101 highway. It was followed by real estate speculation and consequentently expulsion of indigenous peoples and also the emergence of environmental laws with the creation of nature conservation units of integral protection. In this region, there are several tradition groups – such as indigenous peoples, caiçaras and quilombolas – who claim: a) the recognition of their territories against the expulsion of the inherited place and the limits of the use of resources imposed by the protected units, and b) their inclusion in the tourist map of the region. Playing the role of the great local protagonist, the Forum of the Traditional Comunities (FCT) of Angra dos Reis, Paraty e Ubatuba was created in 2007 to discuss several issues concerning the life of their residents. As to the demand to the visibility linked to tourism, a community-based tourism (TBC) map was made in the 2015 Forum. This work aims at investigating the TBC in the territories comprising the FCT under a sociocultural and political-organizational approach and an exploratory and descriptive methodological framework with focus on three initiatives: the caiçara community of São Gonçalo (Paraty), Bracuí Quilombo and Sapukai Village, located in Angra dos Reis. The findings of the research raise insights on the TBC and its correlation with the following themes: traditional populations, cultural, territorial and economic resistence, permanence in traditional territory, promotion of local identity and history and the right to the practice of traditional and economic activities and tourism. In other words, being a traditional population means a form of resistence which transforms local experiences in tourism and a locally named TBC also means including the ' invisible' social groups in the state map. Our claim is that these initiatives are linked to a political and social movement which uses tourism as a power tool. KEYWORDS: Community-Based Tourism; Traditional Populations; Costa Verde (RJ, Brazil); Forum of Traditional Communities.

scholarly journals Inventory and assessment of geosites to stimulate regional sustainable management: the northern coast of the state of São Paulo, Brazil

2019 ◽  
Vol 91 (2) ◽  
Author(s):  
MARIA DA GLÓRIA M. GARCIA ◽  
ELIANE A. DEL LAMA ◽  
LUCELENE MARTINS ◽  
CARLOS EDUARDO M. MAZOCA ◽  
CHRISTINE L.M. BOUROTTE
Keyword(s):  
Sustainable Management ◽  
Sao Paulo ◽  
The State ◽  
Northern Coast ◽  
São Paulo

scholarly journals MAPA GEOLÓGICO DA PLANÍCIE COSTEIRA ENTRE O RIO SAÍ-GUAÇU E A BAÍA DE SÃO FRANCISCO, LITORAL NORTE DO ESTADO DE SANTA CATARINA

2004 ◽  
Vol 55 ◽  
Author(s):  
Rodolfo José ANGULO ◽  
Maria Cristina De SOUZA
Keyword(s):  
Coastal Plain ◽  
Sedimentary Cover ◽  
The State ◽  
Northern Coast ◽  
Littoral Drift ◽  
Santa Catarina ◽  
Upper Pleistocene ◽  
The Holocene ◽  
Geological Map ◽  
Coastal Deposits

A geologia de superfície da região costeira, entre o Rio Saí-Guaçu e a Baía de São Francisco, litoral norte de Santa Catarina, é constituída por rochas do embasamento cristalino Pré-Cambriano e pela cobertura sedimentar do Cenozóico. O objetivo deste trabalho é apresentar um novo mapa geológico dessa cobertura, na escala 1:50.000, com ênfase na planície costeira. Na área, foram identificadas as seguintes unidades: Fm. Mina Velha do Mioceno Inferior; colúvios, leques aluviais e depósitos fluviais, do Quaternário indiferenciado; terraços costeiros do Pleistoceno Superior (120.000 anos A.P.) e do Holoceno (< 7.000 anos A.P.); planícies paleoestuarinas do Holoceno; dunas, praias e mangues atuais. A distribuição em superfície e subsuperfície e o empilhamento das fácies dos depósitos costeiros permitem compreender alguns aspectos da evolução geológica e paleogeográfica da área durante o Quaternário. A ocorrência de extensos terraços do Pleistoceno e Holoceno, a presença de paleolagunas na retaguarda dos terraços e a ocorrência de sedimentos argilosos lagunares sob os terraços permitem inferir que, durante os ciclos transgressivos regressivos do Pleistoceno superior e Holoceno, existiram na região barreiras transgressivas e regressivas. A extensão das planícies paleoestuarinas indica que durante o máximo transgressivo do Holoceno existiam grandes estuários e lagunas. A morfologia dos cordões litorâneos evidencia que no Holoceno houve a formação de esporões paralelos à costa, que teriam crescido para o norte sob o efeito da deriva litorânea predominante. O crescimento desses esporões teria desviado a desembocadura do Rio Saí-Mirim para o norte. Durante essa migração, o rio erodiu a parte interna desses esporões e, provavelmente, as barreiras transgressivas do Holoceno. GEOLOGICAL MAP OF THE COASTAL PLAIN BETWEEN THE SAÍ-GUAÇU RIVER AND SÃO FRANCISCO BAY, NORTHERN COAST OF THE STATE OF SANTA CATARINA Abstract The studied area is located in the northeastern area of the State of Santa Catarina between 25o57' S and 26o14' S. The surface geology of the area is composed by rocks from the Precambrian basement and from the Cenozoic sedimentary cover. In conventional geological maps, the Cenozoic sedimentary package appears as an undifferentiated unit (e.g. Siga Jr. et al. 1993). Martin et al. (1988) presented the first map of the coastal Quaternary of the State of Santa Catarina, in 1:200,000 scale. Later, Horn Filho (1997) presented a map, in the scale 1:50,000, of the São Francisco do Sul region. The objective of this study is to present a new geological map, in the scale 1:50,000, of the coastal plain between the Saí-Guaçu River and the São Francisco Bay. In the studied area the following Cenozoic age units were identified: Mina Velha Formation, probably of Lower Miocene; colluvium and alluvial fans of undifferentiated Quaternary; fluvial deposits of undifferentiated Quaternary; Upper Pleistocene coastal terraces (120,000 years B.P.); Holocene coastal terraces (< 7,000 years B.P.); Holocene paleoestuarine plains; dunes; beaches and mangroves. The distribution on the surface and subsurface and the layers of facies of the coastal deposits allow an understanding of some aspects of the geological and paleogeographical evolution of the area during the Quaternary. There are extensive Pleistocene and Holocene terraces, the presence of paleolagoons on the terrace backs and also fine lagoon sediments below the terraces makes one infer that during the Upper Pleistocene and Holocene there were transgressive barrier and regressive beach/foredune ridges in the region, similar to those described by Lessa et al. (2000) in the State of Paraná. The extension of the paleoestuarine plains indicates that during the Holocene transgressive maximum there were large estuaries and lagoons. The morphology of the beach/foredune ridges provides evidence that in the Holocene spits parallel to the coast foreland that would have grown northward due to the effect of the dominant littoral drift. The growth of these spits caused the migration of the inlet of Saí-Mirim River more than 6 km northward throughout the last 5,000 years. During this migration the river eroded the internal part of these spits and the Holocene transgressive barriers.

scholarly journals Glyceridae Grube 1850 (Annelida: Polychaeta) from Southern and Southeastern Brazil, including a new species of Glycera

2007 ◽  
Vol 7 (3) ◽  
pp. 41-59 ◽  
Author(s):  
Alexandra Elaine Rizzo ◽  
Tatiana Menchini Steiner ◽  
Antonia Cecília Zacagnini Amaral
Keyword(s):  
Continental Shelf ◽  
Sustainable Use ◽  
Sandy Beaches ◽  
The State ◽  
Southeastern Brazil ◽  
Marine Biodiversity ◽  
Northern Coast ◽  
Outer Continental Shelf ◽  
Unknown Species ◽  
The Family

This systematic study of the polychaete species of the family Glyceridae is part of a broader program to inventory and determine parameters for conservation and sustainable use of the marine biodiversity off the southeastern and southern coast of Brazil. The material studied was collected from intertidal sandy beaches, the inner continental shelf (<50 m depth) off the northern coast of the state of São Paulo, and the outer continental shelf and part of the continental slope (depths from 60 to 808 m) off the state of Rio de Janeiro south to Rio Grande do Sul (22° S - 34° 40' S). The descriptions of several species were improved, adding new and important taxonomic characters, mainly related to proboscideal papillae. A key for identification of the glycerid species from southeastern and southern Brazil is also provided. Eight species of Glyceridae were identified: Glycera americana Leidy 1855; Glycera brevicirris Grube 1870; Glycera dibranchiata Ehlers 1868; Glycera lapidum Quatrefages 1866; Glycera oxycephala Ehlers 1887; Glycera tesselata Grube 1863; Hemipodia californiensis (Hartman 1938); Hemipodia simplex (Grube 1857); and a previously unknown species of Glycera.

Spatiotemporal dynamics of mangrove forest and association with strandings of Antillean manatee (Trichechus manatus) calves in Paraíba, Brazil

2021 ◽  
pp. 1-8
Author(s):  
Iara Dos Santos Medeiros ◽  
Vanessa Araújo Rebelo ◽  
Sebastião Silva Dos Santos ◽  
Rafael Menezes ◽  
Nadjacleia Vilar Almeida ◽  
...  
Keyword(s):  
Mangrove Forest ◽  
Spatiotemporal Dynamics ◽  
The State ◽  
Influential Factor ◽  
Eastern Region ◽  
Northern Coast ◽  
Mangrove Forests ◽  
Trichechus Manatus ◽  
The North ◽  
North Eastern

Abstract Estuaries in Brazil are highly threatened environments and habitat loss is the main influential factor for the increase in the number of strandings of Antillean manatee (Trichechus manatus) calves in the north-eastern region of the country. The aim of the present study was to analyse and quantify the spatiotemporal dynamics of mangroves in the state of Paraíba and the association with manatee calf stranding events. The study area encompassed 10 remaining mangroves along the coast of the state, four of which were located within protected areas. Information on the mangrove forests was obtained from satellite images from the last four decades. Data on stranded Antillean manatee calves were obtained from a databank with records from 1980 to 2019. The data were analysed using geoprocessing techniques and statistical analyses. The results demonstrated changes in the mangrove forest over time, with larger areas existing during the 1980s, reductions in the following periods but a slight increase in the last decade. The number of stranded Antillean manatee calves increased over the years, with stranding events concentrated mainly on the northern coast of the state. The smallest number of stranding events occurred in the 1980s, when the mangrove forests were larger. Our findings confirm that the integrity of mangroves is of extreme importance to the maintenance and sustainability of Antillean manatee populations.

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