Encontrados 46 documentos, a visualizar página 1 de 5
Eficácia de carrapaticidas em rebanhos leiteiros de Rondônia.
BRITO, L. G.; ROCHA, R. B.; SILVA NETTO, F. G. da; BARBIERI, F. da S.; OLIVEIRA, M. C. de S.; GONÇALVES, M. A. R.; CARVALHO, G. L. de O.O carrapato dos bovinos, Rhipicephalus microplus é um dos principais problemas sanitários dos rebanhos leiteiros em Rondônia. As condições climáticas do Estado são propícias ao desenvolvimento biológico do carrapato, representando um desafio à pecuária leiteira, uma vez que os bovinos estão permanente expostos à infestação por carrapato. Esta publicação reúne informações a respeito do controle deste ácaro. ; ...
The national inventory of geosites in Portugal
Brilha, J. B.; Alcalá, A.; Almeida, A.; Araújo, A.; Azerêdo, Ana; Azevedo, M. R.; Barriga, Fernando; Silveira, A. Brum; Cabral, J.; Cachão, M.During the last three years geoscientists of various institutions have developed a project aiming the setup of a geoconservation strategy in Portugal (Brilha, 2009). One of the main goals of the project was the establishment of an inventory of the most important Portuguese geosites, under the scientific point of view. In a near future, national authorities will consider this inventory as a technical support for...
Biostratigraphie et paléoécologie des peuplements d'ostracodes dans le Domérien...
N'Zaba-Makaya, O.; Andreu, B.; Brunel, F.; Mouterde, R.; Rey, J.; Rocha, R. B.The Domerian sections from the Lusitanian Basin of São Pedro de Muel, Rabaçal and Tomar have provided us with more than 1100 Ostracods belonging from 18 genus and about 48 species. The faunal diversity and density of the associations decrease in space (from Tomar to Rabaçal and São Pedro de Muel) and time, with favourable environments for the proliferation of Ostracods at the lower part of the sections (Stokesi...
Orbital forcing of stratal patterns in an inner platform carbonate sucession: a...
Lézin, C.; Bonnet, L.; Rey, J.; Caetano, P. S.; Gonçalves, P.; Rocha, F.; Rocha, R. B.With an example taken from a late-Hauterivian series of the Lusitanian Basin (Portugal), we will demonstrate the sedimentary record of orbital pattern variations and, consequently, climate variations in an inner platform environment with patterns and isolation changes, allows us to establish 4 major orders of periodicity related to orbital components:- The large cycles ob bed thickness variation, constituted by...
Paleontologia e evolução a problemática da espécie em Paleozoologia
Rocha, R. B.The concept of species in Paleontology is of paramount importance since the correct taxonomic determinations are essential to establish the age of the beds where fossils are collected. Particularly since 1940, the concept of species from a biological context, corresponding to the variability of a set of interpopulation compatibility, led us to a new approach, in which a typological conception has been replaced ...
The Sinemurian ammonites of the Lusitanian Basin (Portugal): an example of comp...
Dommergues, J.-L.; Meister, C.; Rocha, R. B.Palaeodiversity 3: 59–87; Stuttgart 30 December 2010 ; This work synthesizes all of the observations since the late nineteenth century of the highly endemic Late Sinemurian (Obtusum Chronozone) ammonite faunas of the Lusitanian Basin. It is based mainly on recent abundant collections from the Penedo da Saudade section near São Pedro de Muel (Leiria, Portugal). This rich material (some eight species and four ge...
Pela construção de um repositório científico (temático) geológico
Boavida, Clara Parente; Kullberg, José Carlos; Rocha, R. B.e-Terra - Revista Electrónica de Ciências da Terra ISSN 1645-0388, Volume 15 – nº 10 2010 ; É apresentado o panorama actual, nacional e internacional, sobre o Acesso Livre ao conhecimento científico através da Web. São apresentadas estatísticas que demonstram os benefícios e a utilidade desta nova forma de divulgação do conhecimento, não apenas pelo incremento das citações, mas também pela formação dos jovens ...
Stratigraphie du Dogger et crise lusitanienne dans la Serra de Candeeiros
Ruget, Ch.; Thierry, J.; Rocha, R. B.; Delance, J. H.; Laurin, B.; Mouterde, R.; Tintant, H.New elements about the stratigraphy of the Serra de Candeeiros Dogger and Lower «Lusitanian» are presented. The Lower Aalenian was recognized for the first time. Bathonian (more than 50 metres thick) is dated on brachiopods and foraminifera. It corresponds to a series of massive micritic, biodetritical, coral-reef, chaetetid, bryozoa and oolitic-limestones. Callovian (120 m) begins by whitish or yellowish limes...
Essai de biozonation du Domérien portugais
Mouterde, R.; Rocha, R. B.The biozonation of the portuguese Domerian is presented. This biozonation is based essentially on fauna from the following sections: S. Pedro de Muel, Peniche (Stokesi zone and lower part of the Margaritatus zone) and Brenha (Margaritatus and Spinatum zones). The distribution of the main fossil groups enabled an accurate division of the Stokesi zone into three horizons: Occidentale, Monestieri-Nitescens and Lus...
Sedimentation pelagique et encroûtements cryptalgaires: les calcaires gremeleux...
Elmi, S.; Rocha, R. B.; Mouterde, R.In Portugal, Carixian is generally represented by alternative layers of marly limestones characterized by nodule and lumpy levels. These layers are particularly developped [show preferential development] on passage areas to a sedimentary basin, particularly along the slope of tilted blocks between the Meseta and Berlenga's horst. This facies is included in the range of the «nodular limestone» and of the «ammoni...
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