|
|
|
| Registros recuperados: 75 | |
|
|
| Alves,Guilherme Guerra; Machado-de-Ávila,Ricardo Andrez; Chávez-Olórtegui,Carlos Delfin; Silva,Rodrigo Otávio Silveira; Lobato,Francisco Carlos Faria. |
| Abstract The epsilon toxin, produced by Clostridium perfringens, is responsible for enterotoxemia in ruminants and is a potential bioterrorism agent. In the present study, 15 regions of the toxin were recognized by antibodies present in the serum, with different immunodominance scales, and may be antigen determinants that can be used to formulate subunit vaccines. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Epsilon; Toxin; Enterotoxemia; Epitope; Mapping. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000300570 |
| |
|
| |
|
|
| Andersen, Jesper H.; Manca, Eleonora; Agnesi, Sabrina; Al-hamdani, Zyad; Lillis, Helen; Mo, Giulia; Populus, Jacques; Reker, Johnny; Tunesi, Leonardo; Vasquez, Mickaël. |
| We have analyzed the development of “Broad-Scale Seabed Habitat Maps” (BSHM) and their potential use in a European context with regard to the EU Marine Strategy Framework Directive (MSFD) implementation, MPA designation and network assessment as well as other applications of BSHMs. The analyses are anchored in BSHMs developed by a series of interlinked EU projects (e.g. UKSeaMap, BALANCE, MESH, Mesh Atlantic, EUSeaMap 2012, and EUSeaMap 2016) and all maps are based on environmental data. Some EU Member States have used BSHMs as part of their MSFD Initial Assessments published in 2012. However, we conclude that BSHMs are a prerequisite for another key MSFD activity, i.e. mapping of potentially cumulative effects of multiple human stressors. Further, BSHMs... |
| Tipo: Text |
Palavras-chave: Benthic Habitats; Mapping; Ecosystem-Based Management; Marine Strategy Framework Directive; Marine Protected Areas (MPA). |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00426/53719/54588.pdf |
| |
|
| |
|
| |
|
|
| Avanzi,Junior Cesar; Viola,Marcelo Ribeiro; Mello,Carlos Rogério de; Giongo,Marcos Vinicius; Pontes,Lucas Machado. |
| ABSTRACT The state of Tocantins is inserted in the new Brazilian agricultural frontier and has shown enormous potential for expansion of the agricultural lands. However, there is a lack of more elaborate scientific information for better planning and guide agricultural activities, especially regarding the soil and water conservation. Tocantins has a relevant rainfall spatial variability and, consequently, rainfall erosivity. Thus, this work aimed to develop models to estimate the mean monthly and annual rainfall and means rainfall erosivity factor (R-factor) of the Universal Soil Loss Equation (USLE) for the state of Tocantins. For that, 97 historical series of daily rainfall were studied, considering a standard period of 25 years (1985-2009). The fitting... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water erosion; Geostatistics; Regression-kriging; Soil and water conservation; Mapping. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100524 |
| |
|
|
| Bagstad, Kenneth J.; Geosciences & Environmental Change Science Center, U.S. Geological Survey; kjbagstad@usgs.gov; Villa, Ferdinando; Basque Centre for Climate Change (BC3), IKERBASQUE, Basque Foundation for Science, Spain; ferdinando.villa@bc3research.org; Batker, David; Earth Economics; dbatker@eartheconomics.org; Harrison-Cox, Jennifer; Earth Economics; jcox@eartheconomics.org; Voigt, Brian; Gund Institute for Ecological Economics, University of Vermont; bvoigt@uvm.edu; Johnson, Gary W.; Gund Institute for Ecological Economics, University of Vermont; gwjohnso@uvm.edu. |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Beneficiaries; Benefits; Demand side; Mapping; Provisioning areas; Spatial dynamics; Spatial flow. |
| Ano: 2014 |
|
| |
|
|
| Bajjouk, Touria; Jauzein, Cecile; Drumetz, Lucas; Dalla Mura, Mauro; Duval, Audrey; Dubois, Stanislas. |
| Sabellaria alveolata is a sedentary gregarious tube-building species widely distributed from southwest Scotland to Morocco. This species builds what are currently considered the largest European biogenic reefs in the bay of Mont-Saint-Michel (France). As an ecosystem engineer, S. alveolata generates small to large scale topographic complexity, creating numerous spatial and trophic niches for other species to colonize. Sabellaria reefs are also under anthropogenic pressures, leading locally to massive degradation. However, stakeholders lack spatially explicit measures of reef ecological status, at adapted spatial resolution to provide key management information for this protected habitat. Traditional field surveys are extremely time-consuming and rely on... |
| Tipo: Text |
Palavras-chave: Benthic habitats; Biogenic reefs; Ecological status; Hyperspectral; Intertidal; Lidar; Mapping. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00654/76574/77710.pdf |
| |
|
|
| Barry, Boubacar; Kortatsi, Benony; Forkuor, Gerald; Gumma, Murali Krishna; Namara, Regassa E.; Rebelo, Lisa-Maria; van den Berg, Joost; Laube, Wolfram. |
| The Atankwidi Catchment, which lies in the White Volta Basin in West Africa, is intensively cultivated by locals for economic gains. During dry seasons, farmers irrigate their crops, chiefly tomatoes, using shallow groundwater harvested from shallow ponds they dig using simple tools like an axe, hoe, bucket and bowls. Recent expansion in cultivated areas has brought to the fore the need to estimate the volume of shallow groundwater stored in the catchment’s underlying aquifer and to what extent it can sustain the incremental growth in irrigated areas. |
| Tipo: Report |
Palavras-chave: Groundwater irrigation; Aquifers; River basins; Catchment areas; Irrigation practices; Remote sensing; Mapping; Crop Production/Industries; Farm Management; Resource /Energy Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/112969 |
| |
|
|
| Bel Hassen, M.; Azizi, M.. |
| Les dimensions fractales des côtes tunisiennes ont été déterminées en utilisant les techniques spatiales fournies par les systèmes d’informations géographiques, en se basant sur une cartographie au 1 :100000 du trait côte. La dimension fractale des côtes tunisiennes est estimée à 1,0805. Une segmentation des côtes en trois parties (nord, est et sud) a permis de mettre en évidence une décroissance de la dimension fractale du nord vers le sud, indiquant que la complexité de la côte décroît vers les faibles latitudes. De nombreuses conséquences découlent de ces résultats, applicables à des stratégies d’échantillonnage, comme à la compréhension de l’écologie et l’interprétation de la distribution des espèces et les modèles de biodiversité. |
| Tipo: Journal Contribution |
Palavras-chave: Biodiversity; Cartography; Coastal morphology; Coasts; GIS; Geomorphology; Mapping; Mathematical analysis. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/4279 |
| |
|
|
| Belin, Catherine. |
| Different ways are explored for presenting 12 years of data on phytoplankton species and toxins in shellfish collected along the French coast and within the framework of the French Phytoplankton Monitoring Network. The advantages and difficulties of aggregating data in different dimensions are discussed. For example, graphs appear suitable only for restricted areas, while mapping is necessary for results on regional or larger scales. Within each of these broad categories, considerable care is required when identifying the appropriate type of information and presentation. |
| Tipo: Text |
Palavras-chave: Data presentation; Mapping; Monitoring; Phytoplankton; Plotting. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00446/55775/57627.pdf |
| |
|
| |
|
| |
|
|
| Borchert,Thomas; Gawenda,Inka. |
| Calluna vulgaris is an important ornamental crop of the horticultural industry in Europe. In order to improve breeding of this species, especially of the most important trait of ‘bud-flowering', the implementation of molecular techniques that allow rapid, reproducible and efficient screening of whole segregating populations e.g. for molecular marker and mapping approaches is a requirement. We therefore aimed to introduce the powerful tool of amplified fragment length polymorphisms (AFLP®), a widely and successfully applied method, into our methodological assortment. As an essential prerequisite, the isolated DNA should be of adequate quality which is a common obstacle when dealing with woody species and their interfering secondary... |
| Tipo: Journal article |
Palavras-chave: DNA content; Mapping; Marker-assisted selection; Ornamental; Plant tissue. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000200007 |
| |
|
| |
|
| |
|
| |
|
|
| Charpentier, Aude; Grillas, P; Lescuyer, F; Coulet, E; Auby, Isabelle. |
| The consequences of a sudden decrease in water salinity on a macrophyte community dominated by the marine species Zostera noltii were investigated in a shallow coastal lagoon (Southern France). The expected change in the community assemblage was a competitive displacement of Z. noltii by Potamogeton pectinatus and Ruppia cirrhosa. However, the results of an eight-year survey did not validate this hypothesis. Zostera noltii remained dominant after three years at low salinity (ca. 5) and then suddenly disappeared within one year. The decline of Z. noltii was not associated with an increase of other species. The maximum depth colonized by all species decreased, suggesting that light availability became a limiting factor for the aquatic vegetation. The high... |
| Tipo: Text |
Palavras-chave: Mediterranean sea; Lagoon; Recovery; Loss; Turbidity; Salinity; Mapping; Seagrass. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-3693.pdf |
| |
|
|
| Chauvaud, S; Bouchon, C; Maniere, R. |
| In the framework of a comprehensive study of the coastal marine ecosystems of Guadeloupe Island (French West Indies), a remote sensing survey of marine communities was conducted in the Bay of the Grand Cul-de-Sac Marin. Pictures of SPOT satellite were used. At first sight, XS data from SPOT did not seem to be well adapted to extract information from deepest underwater areas. In the present study, a method for analysis of XS data was developed, which increases tenuous spectral differences associated to very low intensity signals. This technique led to a better distinction of objects, even the deepest ones. Reference surfaces were then identified in the field and a reliable supervised classification was conducted, which reflected the high diversity of... |
| Tipo: Text |
Palavras-chave: Télédétection; Cartographie; Récif corallien; Phanérogame marine; Mangrove; Remote sensing; Mapping; Coral reef; Seagrass; Mangrove. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/00291/40267/38646.pdf |
| |
|
|
| Chiba, Marcio Koiti; Instituto Agronômico - IAC; Guedes Filho, Osvaldo; IAC; Vieira, Sidney Rosa; IAC. |
| O conhecimento da variabilidade espacial das plantas daninhas permite ações de manejo localizado, que podem trazer o duplo benefício da economia de insumos e da preservação da qualidade do ambiente. Este trabalho objetivou avaliar a distribuição espacial de plantas daninhas num Latossolo Vermelho distrófico (LVd) argiloso em Campinas, Estado de São Paulo, no período entre 2003 e 2008. A área amostrada era de 3,42 hectares e apresentava 302 pontos amostrais distribuídos em grade regular de 10 x 10 m. Os coeficientes de variação calculados foram classificados como altos e muitos altos, características de dados provenientes de contagem, e assimétricos, o que demonstra que a utilização de valores médios não representa adequadamente a população amostral. A... |
| Tipo: Pesquisa empírica de campo |
Palavras-chave: 5.01.03.01-6 Geoestatística; Krigagem; Mapeamento Agronomia Geostatistics; Krigging; Mapping. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5445 |
| |
| Registros recuperados: 75 | |
|
|
|
