scholarly journals Serological survey of Babesia bovis, Babesia bigemina, and Anaplasma marginale antibodies in cattle from the semi-arid region of the state of Bahia, Brazil, by enzyme-linked immunosorbent assays

2005 ◽  
Vol 100 (6) ◽  
pp. 513-517 ◽  
Author(s):  
Silvia L Barros ◽  
Claudio R Madruga ◽  
Flabio R Araújo ◽  
Carlos F Menk ◽  
Maria Angela O de Almeida ◽  
...  
2015 ◽  
Vol 8 ◽  
pp. 510
Author(s):  
Iêdo Bezerra Sá ◽  
Tony Jarbas Ferreira Cunha ◽  
Tatiana Ayako Taura ◽  
Marcos Antônio Drumond

Na região Semiárida do Estado de Pernambuco existe grande diversidade na paisagem natural, onde a vegetação, os solos e o clima geram uma multiplicidade de situações que concorrem para formação de diferentes ecossistemas e habitats com grande potencial ecológico e ambiental. Nesta região, a vegetação é caracterizada por diferentes fisionomias, variando de áreas com formações arbustivas, com cobertura do solo muito escassa e quase ausente, a formações arbóreas com níveis de cobertura bastante densas. De modo análogo, nesta região ocorre uma grande variedade de solos, que por suas características, manejo e situação no relevo podem potencializar os processos erosivos, determinantes no desencadeamento da desertificação. Considerando as interrelações destas duas variáveis ambientais, este trabalho tem o objetivo de realizar um diagnóstico das áreas susceptíveis à desertificação da Região de Desenvolvimento Sertão do São Francisco - RDSF, tendo como base o cruzamento das informações da cobertura vegetal natural e das classes de solos. Para tanto, foram utilizados o recorte do mapeamento da cobertura vegetal e uso do solo e o recorte do mapeamento de solos da RDSF. Foram estabelecidos critérios para susceptibilidade da cobertura vegetal, assim como para as classes de solos presentes na área. Executou-se a intersecção destas duas bases de informação para o perfil da sensibilidade à desertificação. Os resultados mostram que a RDSF tem os seguintes valores das áreas em processos de desertificação: 1,77% na classe ausente ou fraca; 74,74% na classe moderada; 0,35% na classe acentuada e 23,14% na classe severa. Deste modo, observa-se que aproximadamente 98% da RDSF encontram-se na situação de sensibilidade à desertificação em que predominam as classes de Moderada a Severa. In the semiarid region of the state of Pernambuco there are plenty of biophysics where vegetation, climate, soils, and the various faces and the relationships and processes that take place among them generate the formation of different ecosystems and habitats with great potential ecological and environmental. There are a range of vegetation types, ranging from shrubby coverage areas up to very sparse and mostly absent vegetation areas, which demonstrated high desertification process occurring. Similarly, a variety of soils that is in the region along with vegetation makes this a region of great variation from the viewpoint of environmental supply. This article deals with the realization of a diagnosis of environmental sensitivity to desertification of São Francisco Development Region seeking spatialize the different situations in which the environment fulfills a greater or lesser extent, its role as provider of environmental services. For this, we used the cutting mapping of existing vegetation and soil mapping of the state and the established criteria, as well as edaphic vegetation cover, featuring the susceptibility to degradation and performed the intersection of these two bases of information to profile the sensitivity to desertification. The results show that São Francisco Development Region has the following values of areas undergoing desertification: 1.77% in weak class; 74.74% in the moderate class; 0.35% in sharp class, and 23.14% in severe class. Keywords: desertification, São Francisco, Semi-arid region, soils.   


2014 ◽  
Vol 1 (2) ◽  
pp. 51 ◽  
Author(s):  
Maria Cristina Crispim ◽  
Ronilson José da Paz ◽  
Takako Watanabe

A new total of nine continental gastropod forms are incorporated to the previous systematic malacological inventory of Santa Catarina's State/SC, central southern Brazil region, the species Helicina schereri Baker, 1913, Assiminea sp, Lamellaxis clavulinus (Potiez and Michaud, 1838), Lamellaxis (Leptopeas) cf. mizius Marcus & Marcus, 1968, Plekocheilus (Eurytus) sp, Rhinus cf. longisetus (Moricand, 1846), Simpulopsis cf. ovata Sowerby, 1822, Megalobulimus klappenbachi Leme, 1964, and Zilchogyra cleliae Weyrauch, 1965. Included in eight genera and seven families, raise the state record for 220 species and subspecies regionally known (190 gastropods - 148 terrestrial, 2 amphibian and 40 limnic/freshwater –, and 30 freshwater bivalves).


2014 ◽  
Vol 05 (20) ◽  
pp. 2008-2019
Author(s):  
Mariana de Souza Macedo ◽  
Romero Alves Teixeira ◽  
Élido Bonomo ◽  
Camilo Adalton Mariano da Silva ◽  
Mariângela Carneiro ◽  
...  

2019 ◽  
Vol 170 ◽  
pp. 104747 ◽  
Author(s):  
Nicolás Morel ◽  
Mariano Mastropaolo ◽  
Susana Torioni de Echaide ◽  
Marcelo L. Signorini ◽  
Atilio J. Mangold

2016 ◽  
Vol 10 (2) ◽  
pp. 88 ◽  
Author(s):  
Eunice Maia de Andrade ◽  
Maria Gina Torres Sena ◽  
Antonio Givanilson Rodrigues da Silva ◽  
Francisco Jairo Soares Pereira ◽  
Fernando Bezerra Lopes

The rural population of a tropical semi-arid region such as the northeast of Brazil is directly dependent on rainfall for agricultural production, pasture for livestock, and the storage of drinking water for human consumption. The region is characterised by the frequent occurrence of dry years and consecutive dry days (CDD) during the rainy season, demonstrating the vulnerability of rainfed agriculture. The aim of this study therefore, was to identify homogeneous regions of the State of Ceará where there is greater or lesser uncertainty of the rainfall regime. Accordingly, the occurrence of dry and very dry years were investigated as uncertainties between years, together with the occurrence of two classes of CDD (10-20 and 21-30 days) during the rainy season. To define similar regions as to the uncertainty of the rainfall regime, the technique of Hierarchical Cluster Analysis (HCA) was used. The study considered time series of least 30 years, from 77 rain gauge stations around the state of Ceará. The use of HCA resulted in the formation of seven homogenous groups in both of the phenomena being investigated. Municipalities in the Central Backlands, the Inhamuns Backlands and the Jaguaribana Region displayed a higher frequency of both inter-annual (dry years) and intra-annual (CDD) uncertainty, demonstrating the greater vulnerability of rainfed agriculture. The occurrence of a CDD event is not dependent on the total annual rainfall, as several stations with an average rainfall higher than that of the state showed potential for the occurrence of CDD. The number of CDD events recorded in the 11-20 day class was higher than in the 21-30 day class.


2010 ◽  
Vol 67 (1) ◽  
pp. 1-5 ◽  
Author(s):  
R. F. de Souza-Silva ◽  
A. Rapini ◽  
J. F. Morales

Mandevilla (Apocynaceae) is a neotropical genus which is well represented in Brazil. A recent taxonomic revision of the Brazilian species of Mandevilla subgenus Mandevilla included eight new species, one of them from the State of Pernambuco. Nevertheless, while preparing a survey of Apocynaceae from the Brazilian semi-arid region, a new species of the subgenus was recognised. Mandevilla catimbauensis Souza-Silva, Rapini & J.F.Morales is here described and illustrated. It is a twining plant with elliptic, glabrous leaves and hypocrateriform, purple flowers, known only from the Vale do Catimbau National Park, in the State of Pernambuco.


Phytotaxa ◽  
2015 ◽  
Vol 207 (2) ◽  
pp. 205
Author(s):  
Catia Takeuchi ◽  
Gerleni Lopes Esteves

Gaya xiquexiquensis is a new species from the state of Bahia, Brazil. This species is known only from the municipality of Xique-Xique, growing in the Caatinga biome of the Brazilian semi-arid region. Gaya xiquexiquensis is morphologically similar to Gaya aurea A. St.-Hil. We here in present its morphological description, illustrations, as well as ecological data and conservation status.


2018 ◽  
Vol 90 (4) ◽  
pp. 3373-3387
Author(s):  
ALEXSANDRA F. DE QUEIROZ ◽  
ALESSANDRA M. SALVIANO ◽  
TONY J.F. DA CUNHA ◽  
NELCI OLSZEVSKI ◽  
VALDOMIRO S. DE SOUZA JÚNIOR ◽  
...  

2020 ◽  
Vol 13 (5) ◽  
pp. 2402
Author(s):  
Eronildo Luiz da Silva Filho ◽  
Tiago Oliveira Caetano ◽  
Thaise Suanne Guimarães Ferreira ◽  
José Almir Cirilo ◽  
Rochele Sheila Vasconcelos ◽  
...  

Diante da histórica escassez de recursos hídricos na região semiárida, é notória a necessidade de se encontrar novas fontes de obtenção e armazenamento de água, seja para o consumo humano e animal ou para produção agrícola. A implantação de barragens subterrâneas no semiárido brasileiro pode contribuir de forma positiva na melhoria do abastecimento humano em comunidades rurais, além do fornecimento de água para o consumo animal e para produção de alimentos. Como sua construção se dá sobre os solos aluviais, o presente estudo tem como objetivo avaliar o potencial de aproveitamento desses solos no estado de Pernambuco para a implantação de barragens subterrâneas e verificar as áreas passíveis de salinização para a escolha adequada desse tipo de intervenção. A área de estudo corresponde ao estado de Pernambuco, em que a presença de solos aluviais foi observada por bacia hidrográfica, utilizando os dados do Zoneamento Agroecológico do Estado de Pernambuco (ZAPE). Com a mesma base de dados foram selecionados os solos com características salinas e estimada, por aluvião, a capacidade de armazenamento de água. Foi possível verificar que o estado de Pernambuco apresenta consideráveis áreas de solos aluviais, com potencial para aproveitamento das águas subterrâneas e para construção de barragens subterrâneas, bem como identificar as regiões onde a implantação desse tipo de obra deve ser mais restritiva por conta do risco de salinização.  Evaluation of the Alluvial Use Potential for a Construction of Underground Dams in the Semi-Arid Region of PernambucoA B S T R A C TGiven the historical scarcity of water resources in the semi-arid region, it is clear the need to find new sources for obtaining and storing water, either for human and animal consumption or for agricultural production. The establishment of underground dams in the Brazilian semi-arid region can contribute positively to the improvement of human supply in rural communities, as well as the supply of water for animal consumption and food production. As its construction takes place on alluvial soils, the present study aims to evaluate the potential use of alluvial soils in the state of Pernambuco for the implantation of underground dams and to verify the salinization areas for the appropriate choice of this type of intervention. The study area corresponds to the state of Pernambuco, where the presence of alluvial soils was observed by watershed, using data from Pernambuco State Agroecological Zoning (ZAPE).  With the same database were selected soils with saline characteristics and estimated, in each alluvium, water storage capacity. It was possible to verify that the state of Pernambuco has areas considerable of alluvial soils, with potential for groundwater utilization and for the construction of underground dams, as well as to identify the regions where the implementation of this type of work should be more restrictive due to the risk of salinization.Keywords: groundwater, alluvium, subsurface dam, risk of salinization. 


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