scholarly journals The remnants of restinga habitats in the brazilian Atlantic Forest of Rio de Janeiro state, Brazil: habitat loss and risk of disappearance

2007 ◽  
Vol 67 (2) ◽  
pp. 263-273 ◽  
Author(s):  
CFD. Rocha ◽  
HG. Bergallo ◽  
M. Van Sluys ◽  
MAS. Alves ◽  
CE. Jamel

"Restingas" (herbaceous/shrubby coastal sand-dune habitats) used to cover most of Rio de Janeiro State coast, and have suffered extensive degradation over the last five centuries. Using satellite images and field work, we identified the remaining restingas in the State, recording the factors that might cause their degradation. We used two mosaics of Landsat 7 scenes (spatial resolution 15 and 30 m) to map and evaluate preliminarly the remaining areas and conservation status. Each remnant area was checked in the field, degraded areas within it were mapped and subtracted from the remnants. We identified 21 restinga remnants totalling 105,285 ha. The largest and smallest restinga remnants were Jurubatiba (25,141 ha) and Itaipu (23 ha), respectively. We identified 14 causes of degradation. The most important were vegetation removal for housing developments, establishment of exotic plant species, change of original substrate, and selective removal of species of economic importance for the horticultural industry. All restingas had disturbed parts under strong pressure due to human activities. Due to intense habitat loss, and occurrence of endemic/threatened vertebrate species in restinga habitats, we strongly indicate the implementation of new conservation units to protect these fragile remnants. This habitat is steadily decreasing and most remnants lack legal protection. Therefore, under the current human pressure most of this unique habitat is likely to be lost from the State within the next few years.

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

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.


Check List ◽  
2016 ◽  
Vol 12 (1) ◽  
pp. 1833 ◽  
Author(s):  
Osvaldo Eric Ramírez-Bravo ◽  
Lorna Hernandez-Santin

The Nearctic and Neotropical realms converge in central Mexico, where many areas have not been adequately characterized. Our objective was to revise the distribution and conservation status of carnivores in the state of Puebla, central Mexico. Between September 2008 and January 2011, we conducted interviews and fieldwork on seven previously selected areas. We complemented our data with bibliographical research. We obtained 733 records for 21 species, representing 63% of the carnivores reported for Mexico. We expanded known ranges of three species: Ocelot (Leopardus pardalis), Bobcat (Lynx rufus), and Tropical Ringtail (Bassariscus sumichastrii). Fifty percent of the carnivore species we recorded in Puebla are considered under some risk category. We found that carnivores in our study area are vulnerable to hunting pressure, human-carnivore conflicts that result in lethal control practices, and extensive habitat loss.


2008 ◽  
Vol 38 (2) ◽  
pp. 551-555 ◽  
Author(s):  
Paulo Vargas Peixoto ◽  
Ticiana Nascimento França ◽  
Bernardo Melo Cunha ◽  
Danielle Valadão Albernaz Mattos Tavares ◽  
Marilene Farias Brito

Poisoning of a goat by Leucaena leucocephalai (Leg. Mimosoideae) in the State of Rio de Janeiro, Brazil, is described. Fresh leaves of the plant were ingested as the animal's main meal for at least 4 months before it developed total alopecia. At necropsy the thyroid was moderately enlarged. Histological examination revealed a decrease in the number of hair follicles (empty or in telogenic phase), vacuolation of keratinocytes of the epidermis and hair follicles, and superficial and follicular hyperkeratosis. Myxedema was found between skeletal and cardiac muscles fibers, in the kidneys, and in the submucosa/muscular layer of the digestive tract. The thyroid follicles were enlarged and filled with copious amounts of colloid (colloidal goiter). Although L. leucocephala is common in several tropical regions, natural poisoning by this plant in goats seems to be rare. It is the first report about spontaneous poisoning in goats by L. leucocephala in Brazil.


Phytotaxa ◽  
2016 ◽  
Vol 253 (1) ◽  
pp. 57 ◽  
Author(s):  
MARCOS SOBRAL ◽  
FIORELLA F. MAZINE ◽  
LÚCIO LEONI ◽  
MARCELO C. SOUZA ◽  
EUGÊNIO A.D. MELO

We describe, illustrate and compare with related species the southeastern Brazilian Calyptranthes arachnicola, C. biconvexa, C. carangola, Eugenia grandissima and Plinia longa. Calyptranthes arachnicola, from the state of Rio de Janeiro, is apparently related to Calyptranthes ursina, differing by its larger blades and pendulous inflorescences; Calyptranthes biconvexa, also from Rio de Janeiro, is apparently related to C. lanceolata, being distinguished by its blades with adaxially biconvex midvein and shorter inflorescences; Calyptranthes carangola, from the state of Minas Gerais, is apparently close to C. curta, differing by its narrower blades, longer inflorescences and narrower bracts; Eugenia grandissima, also from Minas Gerais, is apparently close to E. umbrosa, but has larger leaves and petioles, blades with midvein adaxially raised and larger bracteoles; and Plinia longa, from the state of Espírito Santo, is related to Plinia edulis, differing by its narrowly oblong leaves. Additionally, species are evaluated for their conservation status according to the information available.


1997 ◽  
Vol 20 ◽  
pp. 181-200
Author(s):  
Claudio Margueron ◽  
Cristiane Mendes Coelho

This article initially undertakes a diagnostic study of the Marble and Granite Industry in Brazil and in Rio de Janeiro State. It shows the main uses for marble and granite and describes the key problems faced by this mining-mineral bencficiation sector in Brazil and Rio de Janeiro: production, institutional, roads and ports infrastructure, low value of exports, Italian Cartel, knowledge of distribution channels, market requirements and technology. It also describes in detail the geographic location, reserves and production of marble and granite in the state of Rio de Janeiro and the export-import situation for Brazil and for Rio de Janeiro State. Finally in its conclusions this article presents an ACTION PLAN for the Marble and Granite Sector of the state of Rio dc Janeiro economy.


Author(s):  
Luciana Leite de Mattos Alcantara ◽  
Núbia Karla de Oliveira Almeida ◽  
Renan Moritz Varnier Rodrigues de Almeida

Abstract Objective To investigate the patterns of hospital births in the state of Rio de Janeiro (RJ), Brazil, between 2015 and 2016; considering the classification of obstetric characteristics proposed by Robson and the prenatal care index proposed by Kotelchuck. Methods Data obtained from the Information System on Live Births of the Informatics Department of the Brazilian Unified Health System (SINASC/DATASUS, in the Portuguese acronym) databases were used to group pregnant women relatively to the Robson classification. A descriptive analysis was performed for each Robson group, considering the variables: maternal age, marital status, schooling, parity, Kotelchuck prenatal adequacy index and gestational age. A logistic model estimated odds ratios (ORs) for cesarean sections (C-sections), considering the aforementioned variables. Results Out of the 456,089 live births in Rio de Janeiro state between 2015 and 2016, 391,961 records were retained, 60.3% of which were C-sections. Most pregnant women (58.6%) were classified in groups 5, 2 or 3. The percentage of C-sections in the Robson groups 1, 2, 3, 4, 5 and 8 was much higher than expected. Prenatal care proved to be inadequate for women who subsequently had a vaginal delivery, had an unfavorable family structure and a lower socioeconomic status (mothers without partners and with lower schooling), compared with those undergoing cesarean delivery. For a same Robson group, the chance of C-section increases when maternal age rises (OR = 3.33 for 41–45 years old), there is the presence of a partner (OR = 1.81) and prenatal care improves (OR = 3.19 for “adequate plus”). Conclusion There are indications that in the state of RJ, from 2015 to 2016, many cesarean deliveries were performed due to nonclinical factors.


Phytotaxa ◽  
2019 ◽  
Vol 408 (1) ◽  
pp. 30-40
Author(s):  
VANESSA TERRA ◽  
FLÁVIA CRISTINA PINTO GARCIA

We describe, illustrate and compare three new Brazilian species of Senegalia from the Atlantic Forest domain: Senegalia atlantica, from Rio de Janeiro State; Senegalia rafinesqueana, from the state of Paraná; and Senegalia cupuliformis, from Bahia State. These species are morphologically most similar to S. tenuifolia and S. multipinnata, S. velutina, and S. kuhlmannii, respectively. Additionally, we provide an identification key to all Senegalia species that are morphologically similar to S. atlantica, S. rafinesqueana and S. cupuliformis and occur in the Atlantic Forest domain; we also provide comments on the geographic distribution and the flowering and fruiting period of S. atlantica, S. rafinesqueana and S. cupuliformis.


Phytotaxa ◽  
2020 ◽  
Vol 446 (1) ◽  
pp. 72-76
Author(s):  
LUDOVIC JEAN CHARLES KOLLMANN

Begonia margaretiana, a new species of Begonia sect. Pritzelia from Rio de Janeiro state, Brazil is described. Begonia margaretiana is morphologically similar to Begonia paulensis, with which it is compared. The new species grow in hygrophilous Atlantic Forest in the south of Rio de Janeiro state, Brazil. Description, comparisons with a morphologically similar species, etymology, taxonomic comments, illustrations, a map, and the conservation status of the new species are provided.


2016 ◽  
Vol 16 (2) ◽  
Author(s):  
Milena de Sousa Nascimento ◽  
Viviane Gianluppi Ferro ◽  
Ricardo Ferreira Monteiro

This study describes the composition and distribution of the Arctiinae species (Lepidoptera: Erebidae) in Rio de Janeiro, generating the first list of Arctiinae species in the state. We assessed the variations in species composition and the different vegetation types in the municipalities of Rio de Janeiro. Data were collected primarily through surveys of museums and publication lists of species. We also conducted field sampling in March and September 2010. Of the 2,077 records covering 28 municipalities, 679 Arctiinae species were found in Rio de Janeiro state and were divided into two tribes and 220 genera. The location with the highest number of species recorded was Itatiaia, with 362 species, followed by Petrópolis and Angra dos Reis, with 320 and 306 species, respectively. Thirty-four percent (n = 230) of the species recorded were exclusive, i.e., occurred in only one location. The lowest dissimilarity values were observed between neighboring municipalities with the same type of plant formation, such as Petrópolis and Teresópolis (19%) or Itatiaia and Resende (24%). Some municipalities slightly further apart geographically, but with the same type of plant formation, also showed low levels of dissimilarity, for example, Petropolis and Resende (29%). However, most locations showed intermediate dissimilarity values of 40-60%, and in some cases, this figure rose to 96%. In the state of Rio de Janeiro, irrespective of its small geographical size and the predominance of a unique ecosystem, the Atlantic Forest shows a wide variation in relief, which may explain the high beta diversity values. Despite the large number of Arctiinae species recorded in Rio de Janeiro, few species were identified in areas with important forest remnants, such as Guapimirim, Nova Iguaçu, and Campos dos Goitacazes. Some regions of the northwestern part of the state were also subsampled. It is likely that new records of Arctiinae still exist in these locations, further increasing the list of Arctiinae species in Rio de Janeiro.


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