scholarly journals Epiphytic macroalgae from Boa Viagem Beach, Recife, Pernambuco state, Brazil

Check List ◽  
2012 ◽  
Vol 8 (4) ◽  
pp. 662 ◽  
Author(s):  
Luanda Pereira Soares ◽  
Mutue Toyota Fujii

The aim of this study was to carry out a taxonomic survey of epiphytic seaweeds that occur on reefs of Boa Viagem Beach, located in the metropolitan region of Recife – Pernambuco state, Brazil. The samplings were performed in the dry season (December 2009) and rainy season (April 2010) at intertidal reefs using 625 cm2 squares. Voucher specimens are deposited at the Herbarium of the Instituto de Botânica, São Paulo, Brazil (SP). A total of 48 taxa were recorded of which 20 were Chlorophyta, 27 Rhodophyta and one Heterokontophyta. The most representative orders were Ceramiales and Cladophorales, with 17 and 10 taxa respectively. Nine species are new additions to the flora of Pernambucan coast. Gelidium pusillum (Stackh.) Le Jol. 1863 and Chondracanthus saundersii C. W. Schneid. and C. E. Lane 2005 had the highest number of epiphytic macroalgae. The majority of species was collected in the rainy season and on wave-exposed sites.

2001 ◽  
Vol 61 (4) ◽  
pp. 577-598 ◽  
Author(s):  
E. A. PANARELLI ◽  
M. G. NOGUEIRA ◽  
R. HENRY

Short-term variability in composition and abundance of copepod populations were studied during the dry (winter) and rainy (summer) seasons, at the dam region of Jurumirim Reservoir, São Paulo, Brazil. An intensive sampling program was carried out during 30 days in each period of the year. Samples and measurements were taken every other day at 0, 5, 10, 15, 20 and 25 m depths. The relationship between variability of the populations and some environmental factors was analyzed. The main species were: Argyrodiaptomus furcatus (Sars), Notodiaptomus iheringi (Wright), Mesocyclops longisetus (Thiébaud), Thermocyclops decipiens (Fischer), and T. minutus (Lowndes). Thermocyclops minutus was the most abundant species in dry season and its abundance varied significantly between sampling days. A large increase in abundance of calanoids occurred during the rainy season. This increase was correlated with higher temperature values. At that time, Notodiaptomus iheringi was dominant. This species showed significant short-term variations in abundance in both dry and rainy seasons. Significant variation in density of populations within the same sampling period might result from either the dispersion pattern of the populations or continuous substitution of the water masses. Significant correlation was observed between copepod abundance and temperature, especially for species of calanoids and there was also some correlations between densities of particular species of copepods and some phytoplankton taxa, mainly during the dry season. As for vertical distribution, most organisms were found between the surface and 15 m deep. During the rainy season, there was some evidence of the occurrence of spatial segregation between species of cyclopoids and calanoids, with the cyclopoids in a deeper position within the water column.


1999 ◽  
Vol 59 (1) ◽  
pp. 131-139 ◽  
Author(s):  
E. A. SIMABUKURO ◽  
A. BEGOVACZ ◽  
L. M. ESTEVES ◽  
G. M. FELIPPE

This paper presents an analysis of pteridophyte spore bank the site of Pedregulho, in Itirapina, state of São Paulo, Brazil. The samples of soil were collected in February (rainy season) and August (dry season) in four localities: open cerrado, cerradão, gallery forest and a disturbed area at depths of 0-5, 5-10 and 10-15 cm. The samples were collected in duplicate. Of the duplicates, one was used for spore counting and the second one for spore germination. In the cerrado, cerradão and gallery forest soil samples the values for pteridophyte spores were similar in the rainy and dry season, but in the disturbed area the percentage of spores was higher in the rainy season than in the dry season. The number of pteridophyte spores decreased with soil depth in the rainy season in the cerrado, cerradão and disturbed area. Gametophytes were found in all samples. In general, soil collected in the cerrado, cerradão and disturbed area in the dry season presented more gametophytes than the ones collected in the rainy season. The number of gametophytes was lower in the 10-15 cm deep samples. The present results clearly show a reserve of spores in the soil of the four different sites studied in Itirapina region, in Brazil. Thus in this region turning over of soil layers and other kinds of disturbance can bring spores to the soil surface and their germination. This is one of the first reports of a pteridophyte spore bank for Brazil, no mention of any pteridophyte spore bank is made for South America by Lindsay & Dyer (1990) and Dyer & Lindsay (1992).


2017 ◽  
Vol 13 (3) ◽  
pp. 189 ◽  
Author(s):  
Mauro Silva Ruiz ◽  
Rosicler Barbosa De Oliveira ◽  
Aldo Struffaldi ◽  
Marcelo Luiz Dias Da Silva Gabriel ◽  
Evandro Bocatto

Hoehnea ◽  
2015 ◽  
Vol 42 (4) ◽  
pp. 749-757 ◽  
Author(s):  
Patrícia Giampaoli ◽  
Natalie do Valle Capelli ◽  
Armando Reis Tavares ◽  
Francine Faia Fernandes ◽  
Marisa Domingos ◽  
...  

Tillandsia usneoides is an epiphytic bromeliad that has been used as a universal bioindicator. The species accumulates metals and presents foliar scale variations when exposed to air pollutants. This study aimed to use the variations in foliar scales as microscopic markers of pollutant effects in the Metropolitan Region of Campinas (MRC), São Paulo State, Brazil. T. usneoides plants were exposed for 12 weeks during dry and wet seasons, totaling four exposures, at five sites in the MRC. Samples were selected before each exposure for initial evaluation of the plants (T0). Leaf fragments were fixed in glutaraldehyde and total scale density and anomalous scale percentage were evaluated. Plants exposed in the MRC showed anomalies and changes in number of subperipheral cells of leaf scales. When compared to T0, T. usneoides presented higher total scale density and anomalous scale percentage at disturbed sites, thus the species can be used as a pollution bioindicator for MRC.


2020 ◽  
Vol 35 ◽  
pp. e000320
Author(s):  
Jefferson Drezett ◽  
Maria Misrelma Moura Bessa ◽  
Vitor Engrácia Valenti ◽  
Fernando Adami ◽  
Luiz Carlos de Abreu

2017 ◽  
Vol 10 (2) ◽  
pp. 169-176
Author(s):  
Daniel Alberto Pamplona ◽  
Alessandro Vinicius Marques de Oliveira

This article investigates the application of economic indicators for the parametric estimation of public transportation aggregate demand. Since the transportation sector plays as vital role in a city infrastructure the objective is to present a method of selecting economic indicators that assist in the study of urban public transport demand, taking as a case study the Metropolitan Region of São Paulo (MRSP). Using econometric modelling, it was estimated the effect of variables explaining total traffic in the transport system, and more specifically examine the role of fares and the employment and wage indicators. Statistical tests were performed to check the validity of the analyzed models and develop a rank of indicators according to their performance as regressors. The subset of indicators that were representative of industrial activity and more related to the local economy had the best performance as a forecasting tool.


Author(s):  
Reinaldo Miranda Sá Teles ◽  
Silvia Maria Bellato Nogueira

A presente análise objetivou avaliar as ações de planejamento e gestão do Turismo em áreas naturais protegidas da Região Metropolitana da Baixada Santista (RMBS) no Estado de São Paulo (Brasil), identificando em que nível estas ações foram influenciadas por conceitos e métodos propostos em dois programas mundiais da Organização das Nações Unidas (ONU): os Objetivos do Desenvolvimento do Milênio (ODM) e a Convenção sobre Diversidade Biológica (CDB). Enquanto a CDB já é amplamente difundida em programas de manejo e gestão do Turismo em áreas protegidas no Brasil, os ODM tiveram pouca penetração nesta temática. Subdivididos em oito metas globais, quatro delas têm amplo potencial para contribuir na elaboração de novas metodologias na gestão do Turismo em áreas naturais protegidas: o ODM 01 (redução da fome e da miséria); o ODM 03 (promoção da igualdade de gênero); o ODM 07 (respeito ao meio ambiente) e o ODM 08 (estabelecimento de parcerias para o desenvolvimento sustentável). Como resultado, a pesquisa demonstrou haver influência apenas indireta das metodologias propostas pelos ODM no que tange ao planejamento e gestão de atividades turísticas sustentáveis nas áreas naturais protegidas da RMBS, enquanto a influência da CDB foi facilmente identificável nas políticas e ações de planejamento e gestão do Turismo. Foram alcançadas algumas conclusões, como por exemplo, a de que os ODM passaram por uma clara adaptação ao contexto brasileiro por meio de políticas públicas, preferencialmente com relação ao ODM 01 (redução da pobreza). Quanto ao ODM 07, no qual o Turismo Sustentável insere-se como atividade econômica a ser incentivada na elevação do nível de renda das populações locais e em prol da conservação ambiental, este carece fortemente de políticas públicas assertivas. Sendo colocado pela ONU como primordial para o sucesso dos ODM em países em desenvolvimento, o Turismo Sustentável com base nos ODM e na CDB pode proporcionar significativos ganhos a áreas como a RMBS, permeada por complexas configurações urbanas, ambientais e sociais. Influence of global programs on the sustainability of tourism in protected areas of the metropolitan area of Baixada Santista (SP, Brazil) ABSTRACT This analysis aims to evaluate the action planning and management of tourism in protected natural areas of the Santos Metropolitan Region (RMBS) in the State of São Paulo (Brazil), whilst identifying at what level these actions were influenced by concepts and methods proposed in two global programs of the United Nations (UN): the Millennium Development Goals (MDGs) and the Convention on Biological Diversity (CBD). While the CBD is already widespread in management programs and management of tourism in protected areas in Brazil, the MDGs have had little penetration on this theme. Subdivided into eight global goals, four of them have vast potential to contribute to the development of new methodologies in the management of tourism in protected natural areas: the ODM 01 (reducing hunger and poverty); MDG 03 (promoting gender equality); MDG 07 (respect for the environment) and the MDGs 08 (establishment of partnerships for sustainable development). As a result, the survey showed that there was only indirect influence of methodologies proposed by the MDGs with regards to planning and management of sustainable tourism activities in protected natural areas of RMBS. While the influence of the CBD was easily identifiable in policy and action planning and tourism management, some conclusions were reached, including the MDGs passing by a clear adaptation to the Brazilian context through public policies, preferably in relation to the MDGs 01 (poverty reduction). As for the MDGs 07, in which Sustainable Tourism is inserted as an economic activity to be encouraged in raising the income level of local populations while conserving the environment, this strongly lacks assertive public policy. It has been placed by the UN as paramount to the success of the MDGs in developing countries Sustainable Tourism based on the MDGs and the CBD can provide significant gains in areas such as RMBS, permeated by complex urban, environmental and social settings. KEYWORDS: Millennium Goals; Biological Diversity; Sustainable Tourism; Protected Areas; Local Communities.


2012 ◽  
pp. 279-289
Author(s):  
Cláudio Dall’Acqua ◽  
André Steagall Gertsenchtein

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