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| Registros recuperados: 41 | |
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| TELLES,TIAGO S.; BACCHI,MATHEUS D.; COSTA,GUSTAVO V. DA; SCHUNTZEMBERGER,AMANDA M.S.. |
| Abstract The aim of this study was to verify the dynamics of milk production in Southern Brazil, analyzing the spatial distribution, evolution and structure of bovine milk production systems in the dairy-specialized microregions. To this end, annual data from 2000 to 2015 are drawn from the Municipal Livestock Survey, reported by the Instituto Brasileiro de Geografia e Estatística, and the Programa Nacional de Fortalecimento da Agricultura Familiar, reported by the Banco Central do Brasil. Location quotient analyses, principal component analyses and clustering analyses are applied. Results of the location quotient analysis indicate that, of the 94 microregions in Southern Brazil, 36 are specialized in milk production. Two principal components were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal production; Spatial analysis; Agricultural economics; Regional development. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000101201 |
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| Storck,Lindolfo; Lopes,Sidinei José; Cargnelutti Filho,Alberto; Lúcio,Alessandro Dal'Col; Toebe,Marcos. |
| The objective of this work was to verify whether the use of the Papadakis method in competing corn hybrid trials would lead to modifications in the validity of assumptions for the mathematical model of variance analysis and for experimental precision indicators. To achieve this, corn-grain-yield data from 25 competing corn hybrid trials, performed in a design of complete randomized blocks, were examined. Each trial entailed verification of assumptions, variance analysis, hypothesis tests, statistics to identify experimental precision, and analysis using the Papadakis method. This method improves experimental precision indicators. The assumptions were valid for both analysis types (without Papadakis and with Papadakis). Mean figures for the Fasoulas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L.; Assumptions; Precision measurements; Spatial analysis. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542010000600015 |
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| Gliozzo, Gianfranco; Extreme Citizen Science (ExCiteS) Research Group, University College London; Institute of Zoology, Zoological Society of London; g.gliozzo@ucl.ac.uk; Pettorelli, Nathalie; Institute of Zoology, Zoological Society of London; Nathalie.Pettorelli@ioz.ac.uk; Haklay, Mordechai (Muki); Extreme Citizen Science (ExCiteS) Research Group, University College London; m.haklay@ucl.ac.uk. |
| Within ecological research and environmental management, there is currently a focus on demonstrating the links between human well-being and wildlife conservation. Within this framework, there is a clear interest in better understanding how and why people value certain places over others. We introduce a new method that measures cultural preferences by exploring the potential of multiple online georeferenced digital photograph collections. Using ecological and social considerations, our study contributes to the detection of places that provide cultural ecosystem services. The degree of appreciation of a specific place is derived from the number of people taking and sharing pictures of it. The sequence of decisions and actions taken to share a digital picture... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Crowdsourcing; Cultural ecosystem services; Environmental spaces detection; Online imagery; Social preferences; Spatial analysis; Volunteered geographic information (VGI). |
| Ano: 2016 |
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| Newton, Adrian C; Centre for Conservation Ecology and Environmental Change, Bournemouth University; anewton@bournemouth.ac.uk; Golicher, Duncan; El Colegio de la Frontera Sur; dgoliche@sclc.ecosur.mx; Gonzalez-Espinosa, Mario; ECOSUR; mgonzale@ecosur.mx; Huth, Andreas; UFZ; andreas.huth@ufz.de; Premoli, Andrea; Universidad Nacional del Comahue; andrea.premoli@gmail.com. |
| Although sustainable forest management (SFM) has been widely adopted as a policy and management goal, high rates of forest loss and degradation are still occurring in many areas. Human activities such as logging, livestock husbandry, crop cultivation, infrastructural development, and use of fire are causing widespread loss of biodiversity, restricting progress toward SFM. In such situations, there is an urgent need for tools that can provide an integrated assessment of human impacts on forest biodiversity and that can support decision making related to forest use. This paper summarizes the experience gained by an international collaborative research effort spanning more than a decade, focusing on the tropical montane forests of Mexico and the temperate... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Biodiversity conservation; Environmental modeling; Landscape ecology; Latin America; Spatial analysis; Sustainable forest management. |
| Ano: 2009 |
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| Biagetti, Stefano; CaSEs - Complexity and Socio-Ecological Dynamics group; Universitat Pompeu Fabra, Department of Humanities; School of Geography, Archaeology, and Environmental Studies, University of the Witwatersrand; stefano.biagetti@upf.edu; Crema, Enrico R.; CaSEs - Complexity and Socio-Ecological Dynamics group; Universitat Pompeu Fabra, Department of Humanities; UCL Institute of Archaeology; enrico.crema@upf.edu. |
| We examined the settlement structure from the Kel Tadrart Tuareg, a small pastoral society from southwest Libya. Our objective was to apply spatial analysis to establish the statistical significance of specific patterns in the settlement layout. In particular, we examined whether there is a separation between domestic and livestock spaces, and whether particular residential features dedicated to guests are spatially isolated. We used both established statistical techniques and newly developed bespoke analyses to test our hypotheses, and then discuss the results in the light of possible applications to other case studies. |
| Tipo: Peer-Reviewed article |
Palavras-chave: Campsites; Kel Tadrart Tuareg; Settlement layout; Spatial analysis. |
| Ano: 2016 |
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| Sunderlin, William D; Rights and Resources Group; Center for International Forestry Research; wsunderlin@rightsandresources.org; Dewi, Sonya; World Agroforestry Centre;; Puntodewo, Atie; Center for International Forestry Research;; Angelsen, Arild; Norwegian University of Life Sciences; Center for International Forestry Research;; Epprecht, Michael; Swiss National Center of Competence in Research (NCCR) "North-South", University of Berne;. |
| Forests have been declared important for the well-being of the poor because of the kinds of goods and services that they provide. We asked whether forests are important for the poor not only because of the kinds of goods and services they provide, but also because they tend to be located where the poor are. We conducted a spatial analysis to ascertain the degree of spatial association between poverty and forests in seven countries: Brazil, Honduras, Malawi, Mozambique, Uganda, Indonesia, and Vietnam. For most of these countries, there was a significant positive correlation between high natural forest cover and high poverty rate (the percentage of the population that is poor) and between high forest cover and low poverty density (the number of poor per unit... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Deforestation; Forest; Poverty; Spatial analysis. |
| Ano: 2008 |
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| Hinckley, Sarah; Parada, Carolina; Horne, John K.; Mazur, Michael; Woillez, Mathieu. |
| Biophysical individual-based models (IBMs) have been used to study aspects of early life history of marine fishes such as recruitment, connectivity of spawning and nursery areas, and marine reserve design. However, there is no consistent approach to validating the spatial outputs of these models. In this study, we hope to rectify this gap. We document additions to an existing individual-based biophysical model for Alaska walleye pollock (Gadus chalcogrammus), some simulations made with this model and methods that were used to describe and compare spatial output of the model versus field data derived from ichthyoplankton surveys in the Gulf of Alaska. We used visual methods (e.g. distributional centroids with directional ellipses), several indices (such as... |
| Tipo: Text |
Palavras-chave: Mathematical models; Statistical analysis; Marine fish; Spatial distributions; Spatial analysis; Individual-based models; USA gulf of alaska; Walleye pollock. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00327/43775/43332.pdf |
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| Lim, Aaron; Wheeler, Andrew J.; Arnaubec, Aurelien. |
| Framework-forming cold-water corals (CWC's) such as Lophelia pertusa and Madrepora oculata generate positive topographic features on the seabed called CWC mounds. In the North East Atlantic, CWC mounds have been studied in detail and reveal heterogeneous spatial on-mound organisation of coral patches. Many of these studies are limited by a paucity of remotely-sensed and video imagery at an appropriate resolution and coverage. This study is the first attempt to video mosaic an entire CWC mound (the Piddington Mound of the Moira Mounds, Porcupine Seabight, Irish margin). The mosaic is divided into 18,980 0.25 m2 cells with a manual classification applied to each within a geographic information system (GIS). Geospatial analysis shows that cell distribution is... |
| Tipo: Text |
Palavras-chave: Cold-water coral; Habitat mapping; Spatial analysis; Sediments; Fades distribution. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00390/50129/50732.pdf |
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| Fernández, M.. |
| En este estudio se presenta el análisis de la relación entre los valores de densidad de hembras maduras y de hembras impregnadas de langostino Pleoticus muelleri (Bate, 1888) del Golfo San Jorge y las variables ambientales. Los datos analizados provienen de las campañas de investigación del INIDEP OB-03/08 y OB-01/09 realizadas en noviembre-diciembre de 2008 y en enero-febrero de 2009, respectivamente; en el área comprendida entre las latitudes 43º 20´ S y 47º 00´ S y el meridiano 64º 00´ W y la costa. Se consideraron las variables biológicas: densidad de hembras maduras y de hembras impregnadas de langostino, por rango de tallas y las variables ambientales: profundidad, temperatura y salinidad de agua de fondo así como, la diferencia de temperatura y de... |
| Tipo: Theses and Dissertations |
Palavras-chave: Females; Sexual maturity; Spawning grounds; Environmental conditions; Spatial analysis; Statistical models; Shrimp fisheries. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/5159 |
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| Escobar, S.. |
| Se presenta en este artículo una metodología a través de la cual se determina cuantitativamente el efecto en la hidrodinámica del golfo de Urabá de un grupo de procesos costeros y forzamientos externos, los cuales, inicialmente, se asumen relevantes en el comportamiento del flujo. De acuerdo con este propósito, se realiza la simulación numérica del flujo y el oleaje en el golfo a través de la plataforma de modelación Delft3D. La modelación considera los siguientes procesos: (i) la influencia marina a través del forzamiento de la marea en la frontera norte del golfo; (ii) el oleaje; (iii) la estratificación termo-salina; (iv) el arrastre del viento y (v) la influencia fluvial a través de la descarga del río Atrato y otros tributarios secundarios. La... |
| Tipo: Journal Contribution |
Palavras-chave: Beach processes; Spatial analysis; Numerical models; Coasts; Hydrodynamics. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4510 |
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| Ehler, Charles; Douvere, Fanny. |
| 1 Introduction to the Workshop on Marine Spatial Planning 7 2 Introduction to Ecosystem-based, Sea Use Management 15 3 Ecosystem-based, Sea Use Management and Marine Spatial Planning 23 4 Key Scientific Issues for Ecosystem-based, Marine Spatial Planning 29 5 Legislation and Policy Framework for Marine Spatial Planning 35 6 A Process for Marine Spatial Planning 45 7 Defining the Human Dimension of Marine Spatial Planning 53 8 Implementing Marine Spatial Planning 57 9 Monitoring, Evaluating, and Adapting Marine Spatial Planning 65 10 Conclusions and Next Steps 71 |
| Tipo: Report |
Palavras-chave: Marine sciences; Spatial analysis; Spatial information; Marine resources; Ecosystems. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/4464 |
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| Sassi, Maria; Pecci, Francesco. |
| In the light of the reaffirmed importance of agricultural convergence within the integration process, the paper provides a preliminary investigation of the impact of the enlargement from the EU-15 to the EU-27 on agricultural real b-convergence and, with reference to the EU-27, of its relationship with economic catching-up process. The empirical analysis, based on a GWR approach, takes into account the regional spatial interdependences in estimating local parameters of convergence. The approach adopted allows to overcome the contradictory results from OLS estimations and parametric spatial econometric models pointed out by the literature and primarily connected to the existence of no unique convergence rate all over Europe. The analysis is based on a... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Regional convergence; Spatial analysis; GWR approach; International Relations/Trade. |
| Ano: 2008 |
URL: http://purl.umn.edu/44459 |
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| Registros recuperados: 41 | |
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