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| Registros recuperados: 2.387 | |
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| Steciow,Mónica M; Milanez,Adauto I.; PiresZottarelli,Carmen L. A; Marano,Agostina V; Letcher,Peter M; Vélez,Carlos G. |
| Los hongos zoospóricos verdaderos, los straminipilas heterotróficos y los plasmodioforidios, son grupos de organismos filogenéticamente no relacionados pertenecientes a los reinos Fungi, Straminipila y Protozoa. Existe escasa información disponible acerca de estos organismos en ecosistemas de gran biodiversidad, particularmente en áreas tropicales y neotropicales. En Sudamérica, las investigaciones sobre su diversidad han sido principalmente realizadas en Argentina y en Brasil utilizando técnicas de cebado múltiple, resultando en el descubrimiento de nuevos taxones y nuevas citas. Hasta el momento, en ambos países se han registrado 434 especies pertenecientes a estos grupos, lo que demuestra que se necesitan más investigaciones para ampliar su conocimiento... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Argentina; Brazil; Heterotrophic straminipiles; Plasmodiophorids; Zoosporic true fungi. |
| Ano: 2012 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932012000100002 |
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| Brazil will benefit if it gains control of its vast Amazonian timber resources. Without immediate planning, the fate of much of the Amazon will be decided by predatory and largely unregulated timber interests. Logging in the Amazon is a transient process of natural resource mining. Older logging frontiers are being exhausted of timber resources and will face severe wood shortages within 5 yr. The Brazilian government can avoid the continued repetition of this process in frontier areas by establishing a network of National Forests (Florestas Nacionais or Flonas) to stabilize the timber industry and simultaneously protect large tracts of forest. Flonas currently comprise less than 2% of the Brazilian Amazon (83,000 km2). If all these forests were used for... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Amazon; Brazil; GIS model; Conservation; Logging; National forest; Production forest; Sustainable management; Tropical forest. |
| Ano: 2002 |
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| Diniz, Fabio H.; Brazilian Agricultural Research Corporation, Embrapa Dairy Cattle, Brazil; fabio.homero@embrapa.br; Kok, Kasper; Soil Geography and Landscape Group, Department of Environmental Sciences, Wageningen University, The Netherlands; Kasper.Kok@wur.nl; Hoogstra-Klein, Marjanke A.; Forest and Nature Conservation Policy Group, Department of Environmental Sciences, Wageningen University, The Netherlands; Marjanke.Hoogstra@wur.nl; Arts, Bas; Forest and Nature Conservation Policy, Department of Environmental Sciences, Wageningen University, The Netherlands; bas.arts@wur.nl. |
| Deforestation is a widely recognized problem in the Brazilian Amazon. Small farmers play a key role in this process in that they earn their livelihood by ranching and farming. Many studies have addressed the link between deforestation and livelihood strategies adopted by small farmers. Most have focused on advanced monitoring systems, simulation models, and GIS approaches to analyze the interaction of both dimensions, i.e., livelihoods and forest cover change. Although the current toolbox of methods has proved successful in increasing our understanding of these interactions, the models and approaches employed do not consider small farmers’ perspectives. On the assumption that local small farmers are agents of land-cover change, understanding how... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Brazil; Deforestation; Fuzzy cognitive maps; Mental model; Pará ; Scenarios. |
| Ano: 2015 |
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| Berardi, Andrea; The Open University; andrea.berardi@open.ac.uk; Mistry, Jayalaxshmi; Royal Holloway University of London; j.mistry@rhul.ac.uk; Bignante, Elisa; Department of Cultures, Politics and Society, University of Torino; elisa.bignante@unito.it; Davis, Odacy; Iwokrama International Centre; odacyd@gmail.com; Haynes, Lakeram; North Rupununi District Development Board; lakehays@gmail.com; Benjamin, Ryan; North Rupununi District Development Board; garybejamin@gmail.com; Albert, Grace; North Rupununi District Development Board; grace.albert.cobra@gmail.com; Xavier, Rebecca; North Rupununi District Development Board; rebeccaxavier86@gmail.com; Jafferally, Deirdre; Iwokrama International Centre; deirdre.jafferally@gmail.com. |
| Linking and analyzing governance of natural resources at different scales requires the development of a conceptual framework for analyzing social-ecological systems that can be easily applied by a range of stakeholders whose interests lie at different scales, but where the results of the analysis can be compared in a straightforward way. We outline the system viability framework, which allows participants to characterize a range of strategies in response to environment challenges for maintaining the long-term survival of their particular system of interest. Working in the Guiana Shield, South America, and with a range of local, regional, and international stakeholders, our aim was to use system viability to (1) investigate synergies and conflicts between... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Brazil; Environmental governance; Guiana Shield; Guyana; Natural resource management; Participatory video; Sustainability indicators; System viability. |
| Ano: 2015 |
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| Peres, Carlos A.; School of Environmental Sciences, University of East Anglia, Norwich, UK; C.Peres@uea.ac.uk. |
| Monitoring the distribution and abundance of hunted wildlife is critical to achieving sustainable resource use, yet adequate data are sparse for most tropical regions. Conventional methods for monitoring hunted forest-vertebrate species require intensive in situ survey effort, which severely constrains spatial and temporal replication. Integrating local ecological knowledge (LEK) into monitoring and management is appealing because it can be cost-effective, enhance community participation, and provide novel insights into sustainable resource use. We develop a technique to monitor population depletion of hunted forest wildlife in the Brazilian Amazon, based on the local ecological knowledge of rural hunters. We performed rapid interview surveys to estimate... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Amazon; Brazil; Game; Harvesting; Hunting; Interviews; Large mammals. |
| Ano: 2015 |
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| Bell, Andrew Reid; The Earth Institute at Columbia University; ab3477@columbia.edu; Engle, Nathan Lee; School of Natural Resources and Environment, University of Michigan; nengle@umich.edu; Lemos, Maria Carmen; School of Natural Resources and Environment, University of Michigan; lemos@umich.edu. |
| Diversity as a concept has often been perceived as a positive system attribute to pursue and protect. However, in some social settings, the way different kinds of diversity shape outcomes can vary significantly. Diversity of ideas and individuals sometimes can lead to disagreement and conflict, which in turn can lead to both positive and negative outcomes. In this study, we examine identity diversity, i.e., age, income, education, worldviews, etc., within the context of Brazilian water governance. We find that within the basins studied in this project, first, the more diversity in organizations and the sectors represented on the council, the more council members participate in council activities, perceive decision making to be democratic, and perceive... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Brazil; Identity diversity; Integrated water resources management. |
| Ano: 2011 |
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| López-Lanús,Bernabé; Laverde,Oscar; Omena Jr.,Reynier; Olarte,Luis G.. |
| It is generally understood that the Anodorhynchus genus of macaws does not spread north of the Amazon River. However, recent published information suggests that the endangered Hyacinth Macaw Anodorhynchus hyacinthinus may occur in the region of the Papurí River, lower Vaupés, in Amazonian Colombia. This information is hypothetical, based on old reports and observations with imprecise geographical data. Our objective was to confirm the presence of macaws of the genus Anodorhynchus in the lower Vaupés, Colombia, and in nearby Negro River, Brazil. We carried out fieldwork and interviews from September 2004 to July 2005, but we failed to locate the species. Notwithstanding, we received information from 8% of the interviewed members of local ethnic groups... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anodorhynchus; Brazil; Colombia; Interviews; Lower Vaupes; Negro River. |
| Ano: 2009 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0073-34072009000100006 |
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| Luz,José Roberto Pujol. |
| The acrocerids (small headed-flies) form a small group of flies, which are difficult to find and observe. They are rare in collections. Their larvae are heteromorphic parasitoids of many families of spiders and their imagoes show a great deal of morphological variation. Little is known about the biology and systematics of this group in the Neotropical region, especially the Philopotinae. Most studies are based on species from Europe and North America. The Philopotinae occurs througout the world, and are characterized by the strongly developed postpronota, which form a shield dorsally in front of the scutum. Fifty specimens of Philopota sp. were collected from branches of Stachytarphetta cayenensis (Verbenaceae) in the Ilha da Marambaia (23º 04' S - 43º 53'... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Philopotinae; Verbenaceae; Atlantic Rain Forest; Hill-topping; Brazil. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0328-03812004000400010 |
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| Registros recuperados: 2.387 | |
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