Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 333
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
Evaluating the Household Level Outcomes of Community Based Natural Resource Management: the Tchuma Tchato Project and Kwandu Conservancy Ecology and Society
Suich, Helen; Crawford School of Public Policy, Australian National University; Environmental Change Institute, Oxford University; helen.suich@anu.edu.au.
Community based natural resource management (CBNRM) programs aim to link the achievement of conservation objectives with those of rural development and poverty alleviation. However, after more than a decade of implementation in southern Africa, there is remarkably little rigorous analysis of their achievements with respect to these goals. An evaluation of two CBNRM interventions, the Tchuma Tchato Project in Mozambique and the Kwandu Conservancy in Namibia, measured the impacts at the household level using multidimensional poverty indices. The analysis found no positive impacts on the multiple dimensions of poverty arising from the Tchuma Tchato initiative in Mozambique. In Kwandu Conservancy in Namibia, positive impacts were felt only on household...
Tipo: Peer-Reviewed Reports Palavras-chave: Africa; Community based natural resource management; Impact evaluation; Mozambique; Namibia; Poverty.
Ano: 2013
Imagem não selecionada

Imprime registro no formato completo
Strengthening threatened communities through adaptation: insights from coastal Mozambique Ecology and Society
Blythe, Jessica L.; University of Victoria; jessica.blythe@jcu.edu.au; Murray, Grant; Vancouver Island University; grant.murray@viu.ca; Flaherty, Mark; University of Victoria; flaherty@office.geog.uvic.ca.
Change is a defining characteristic of coastal social-ecological systems, yet the magnitude and speed of contemporary change is challenging the adaptive capacity of even the most robust coastal communities. In the context of multiple drivers of change, it has become increasingly important to identify how threatened communities adapt to livelihood stressors. We investigate how adaptation is negotiated in two coastal fishing communities by documenting livelihood stressors, household assets, adaptive strategies, and factors that facilitate or inhibit adaptation. Declining catch is the most common stressor being experienced in both communities, however, socioeconomic, e.g., disease or theft, and ecological, e.g., severe storms and drought, changes are also...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptation; Africa; Diversification; Intensification; Livelihoods; Small-scale fisheries.
Ano: 2014
Imagem não selecionada

Imprime registro no formato completo
Going Transboundary? An Institutional Analysis of Transboundary Protected Area Management Challenges at Mt Elgon, East Africa. Ecology and Society
Vedeld, Paul; Norwegian University of Life Sciences, Noragric; pal.vedeld@umb.no; Vatn, Arild; Norwegian University of Life Sciences, Noragric; arild.vatn@umb.no.
We analyze institutional challenges for a joint transboundary protected area regime. Employing the case of Mt Elgon in Uganda and Kenya, we use the concepts of fit and interplay to guide our examination in the challenges of the establishment of a transboundary protected area management (TBPAM) regime. Although transboundary regimes are thought to provide better fit for the resources, fitness is a contested phenomenon. The findings are critical to the perceived benefits of the TBPAM strategy in the form of one, fully integrated regional regime. We reveal how such a regime will be seriously constrained by the interplay of complex institutional factors. We moreover find evidence that TBPAM entails a reintroduction of the old top-down conservation paradigms,...
Tipo: Peer-Reviewed Reports Palavras-chave: Africa; Fit; Kenya; Protected areas; Institutions; Interplay; Transboundary conservation; Uganda..
Ano: 2013
Imagem não selecionada

Imprime registro no formato completo
Quantifying the Human Appropriation of Fresh Water by African Agriculture Ecology and Society
Alcamo, Joseph; Center for Environmental Systems Research, University of Kassel; alcamo@usf.uni-kassel.de.
Tipo: Peer-Reviewed Reports Palavras-chave: Africa; Agriculture; Blue water; Green water; Hydrological modeling; LandSHIFT; Land-use modeling; WaterGAP.
Ano: 2009
Imagem não selecionada

Imprime registro no formato completo
The Social and Environmental Impacts of Biofuel Feedstock Cultivation: Evidence from Multi-Site Research in the Forest Frontier Ecology and Society
German, Laura; Center for International Forestry Research (CIFOR); L.GERMAN@cgiar.org; Schoneveld , George C.; Center for International Forestry Research (CIFOR); G.Schoneveld@cgiar.org; Pacheco, Pablo; Center for International Forestry Research (CIFOR); p.pacheco@cgiar.org.
Preoccupation with global energy supplies and climate change in the global North, and a desire to improve the balance of trade and capture value in the emerging carbon market by developing countries, together place biofuels firmly on the map of global land use change. Much of this recent land use change is occurring in developing countries where large agro-ecologically suitable tracts of land may be accessed at lower economic and opportunity cost. This is leading to the gradual penetration of commercial crops that provide suitable biofuel feedstocks (e.g., sugarcane, soybean, oil palm, jatropha) into rural communities and forested landscapes throughout many areas of the global South. Expansion of biofuel feedstock cultivation in developing countries is...
Tipo: Peer-Reviewed Reports Palavras-chave: Africa; Biofuels; Environmental impacts; Forest frontier; Latin America; Social impacts; Southeast Asia.
Ano: 2011
Imagem não selecionada

Imprime registro no formato completo
The Contributions of Regional Knowledge Networks Researching Environmental Changes in Latin America and Africa: a Synthesis of what they can do and why they can be policy relevant Ecology and Society
Lahsen, Myanna; Instituto de Pesquisas Espaciais; myanna@sir.inpe.br; Swap, Robert; University of Virginia; swapper@virginia.edu; McNie, Elizabeth; Department of Political Science, Purdue University; emcnie@gmail.com; Ometto, Jean P. H. B.; Instituto de Pesquisas Espaciais; jean.ometto@inpe.br; Schor, Tatiana; Universidade Federal do Amazonas; tschor@ufam.edu.br; Tiessen, Holm; Inter-American Institute for Global Change Research; htiessen@dir.iai.int; Andelman, Sandy; Conservation International; sandelman@conservation.org; Annegarn, Harold; Department of Geography, Environmental Management and Energy Studies, University of Johannesburg, Auckland Park, South Africa; hannegarn@gmail.com.
We provide a synthesis of what regional scientific research networks in less developed regions of the world can do and why they might be relevant for societal decisions and practice. We do so through a focus on three regional science network initiatives that aim to enhance understanding of the multiscalar dynamics of global environmental change (GEC) regionally and globally, namely the Southern Africa Regional Science Initiative (SAFARI 2000), the Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA), and the Inter-American Institute for Global Change (IAI). With a view to aiding future efforts at regional research network formation, we assess whether and how these three networks enhanced regional science, and the extent to which they sought and...
Tipo: Peer-Reviewed Reports Palavras-chave: Africa; Capacity building; Global change; Latin America; Scientific research networks.
Ano: 2013
Imagem não selecionada

Imprime registro no formato completo
Accelerating Deforestation in the Congo Basin Can Pose Climate Risks Ecology and Society
Baidya Roy, Somnath; Duke University; sbroy@duke.edu; Walsh, Peter D; Max Planck Institute for Evolutionary Primatology; walsh@eva.mpg.de.
Tipo: Peer-Reviewed Reports Palavras-chave: Africa; Climate change; Conversion to grassland; Deforestation; Logging.
Ano: 2005
Imagem não selecionada

Imprime registro no formato completo
Conservation and Development in Latin America and Southern Africa: Setting the Stage Ecology and Society
Romero, Claudia; Tropical Conservation and Development Program, Center for Latin American Studies, University of Florida.; romero@ufl.edu; Athayde, Simone; Tropical Conservation and Development Program and Amazon Conservation Leadership Initiative, Center for Latin American Studies, University of Florida.; simonea@ufl.edu; Collomb, Jean-Gael E.; Wildlife Conservation Network; jgcollomb@gmail.com; DiGiano, Maria; Tropical Conservation and Development Program, Center for Latin American Studies, University of Florida; marimardig@mac.com; Schmink, Marianne; Tropical Conservation and Development Program, Center for Latin American Studies, University of Florida.; schmink@LATAM.UFL.EDU; Schramski, Sam; Tropical Conservation and Development Program, Center for Latin American Studies, University of Florida; schramski@ufl.edu; Seales, Lisa; Tropical Conservation and Development Program, Center for Latin American Studies, University of Florida; lisaseal@ufl.edu.
Tipo: Peer-Reviewed Reports Palavras-chave: Africa; Complex social-ecological systems; Conservation; Development; Knowledge networks; Local institutions; Economic incentives; Latin America.
Ano: 2012
Imagem não selecionada

Imprime registro no formato completo
Evaluating Successful Livelihood Adaptation to Climate Variability and Change in Southern Africa Ecology and Society
Osbahr, Henny; University of Reading and Walker Institute for Climate System Research; h.osbahr@reading.ac.uk; Twyman, Chasca; University of Sheffield;; Adger, W. Neil; Tyndall Centre for Climate Change Research, University of East Anglia;; Thomas, David S. G.; University of Oxford;.
This paper examines the success of small-scale farming livelihoods in adapting to climate variability and change. We represent adaptation actions as choices within a response space that includes coping but also longer-term adaptation actions, and define success as those actions which promote system resilience, promote legitimate institutional change, and hence generate and sustain collective action. We explore data on social responses from four regions across South Africa and Mozambique facing a variety of climate risks. The analysis suggests that some collective adaptation actions enhance livelihood resilience to climate change and variability but others have negative spillover effects to other scales. Any assessment of successful adaptation is, however,...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptation; Africa; Climate change; Livelihoods; Resilience.
Ano: 2010
Imagem não selecionada

Imprime registro no formato completo
Rural local institutions and climate change adaptation in forest communities in Cameroon Ecology and Society
Peach Brown, H. Carolyn; University of Prince Edward Island; hcpbrown@upei.ca; Sonwa, Denis J.; Center for International Forestry Research (CIFOR); D.SONWA@CGIAR.ORG.
Surveys and interviews were used to understand community resilience in forest-dependent communities facing climate change in Cameroon. Surveys of 232 individuals showed a diversity of formal and informal institutions that relate to most aspects of rural life. Although direct activities related to climate change adaptation were limited, the activities and density of membership in rural local institutions could increase the community’s adaptive capacity. Twenty-six semistructured interviews were also conducted with representatives of diverse local institutions who had some responsibility for agriculture, forests, conservation, or development. Local governmental institutions had not received any information from the national level and were limited...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptation; Africa; Climate change; Community forests; Local institutions; Resilience.
Ano: 2015
Imagem não selecionada

Imprime registro no formato completo
The hedgification of maizescapes? Scalability and multifunctionality of Jatropha curcas hedges in a mixed farming landscape in Zambia Ecology and Society
van der Horst, Dan; University of Edinburgh; dan.vanderhorst@ed.ac.uk; Vermeylen, Saskia; Lancaster University; s.vermeylen@lancaster.ac.uk; Kuntashula, Elias; University of Zambia; ekuntashula@unza.zm.
We argue that reading the local agricultural landscape is a prerequisite to understanding the plausible local impacts of external drivers for change, such as the introduction of new crops and technologies. Initially driven by a desire to understand the potential for small-scale farmers to produce jatropha biodiesel in a sustainable way, we started to examine how farmers related to trees in different parts of the agricultural landscape. This provided us with insights into small-scale processes of land enclosure and conversion, which indicate that agricultural intensification is taking place. We learned that although the landscape could in theory accommodate a lot of jatropha hedges around existing (maize dominated) arable land, farmers were only creating...
Tipo: Peer-Reviewed Reports Palavras-chave: Africa; Agricultural intensification; Biofuels; Live fence; Marginal land.
Ano: 2014
Imagem não selecionada

Imprime registro no formato completo
Conservation and Unscripted Development: Proximity to Park Associated with Development and Financial Diversity Ecology and Society
Baird, Timothy D.; Virginia Tech; tbaird@vt.edu.
Decades of research on the social dynamics of biodiversity conservation has shown that parks and protected areas have added hardship to rural communities throughout much of the developing world. Nonetheless, some recent studies have found evidence of poverty alleviation near protected areas. To build on these conflicting accounts, I use a comparative, mixed-methods design to examine opportunistic, unplanned, i.e., unscripted, development in indigenous communities near Tarangire National Park (TNP) in northern Tanzania. I ask the questions: (1) How is proximity to TNP related to community-level infrastructural development? (2) How has the process of development changed over time? and (3) How is proximity to TNP related to infrastructure-related social...
Tipo: Peer-Reviewed Reports Palavras-chave: Africa; Conservation; Development; Education; Infrastructure; Tanzania.
Ano: 2014
Imagem não selecionada

Imprime registro no formato completo
Indicators for wild animal offtake: methods and case study for African mammals and birds Ecology and Society
Ingram, Daniel J.; School of Life Sciences, University of Sussex; D.Ingram@sussex.ac.uk; Coad, Lauren; Environmental Change Institute, University of Oxford; United Nations Environment Programme World Conservation Monitoring Centre; lauren.coad@ouce.ox.ac.uk; Collen, Ben; Centre for Biodiversity & Environment Research, University College London; b.collen@ucl.ac.uk; Breuer, Thomas; Global Conservation Program, Wildlife Conservation Society; tbreuer@wcs.org; Fa, John E.; Division of Biology and Conservation Ecology, School of Science and the Environment, Manchester Metropolitan University; Center for International Forestry Research; jfa949@gmail.com; Gill, David J. C.; Fauna & Flora International; david.gill@fauna-flora.org; Maisels, Fiona; Global Conservation Program, Wildlife Conservation Society; African Forest Ecology Group, School of Natural Sciences, University of Stirling; fmaisels@wcs.org; Schleicher, Judith; Department of Geography, University of Cambridge; js525@cam.ac.uk; Stokes, Emma J.; Global Conservation Program, Wildlife Conservation Society; estokes@wcs.org; Taylor, Gemma; Centre for Biodiversity & Environment Research, University College London; Institute of Zoology, Zoological Society of London; gemma.taylor@ioz.ac.uk.
Unsustainable exploitation of wild animals is one of the greatest threats to biodiversity and to millions of people depending on wild meat for food and income. The international conservation and development community has committed to implementing plans for sustainable use of natural resources and has requested development of monitoring systems of bushmeat offtake and trade. Although offtake monitoring systems and indicators for marine species are more developed, information on harvesting terrestrial species is limited. Building on approaches developed to monitor exploitation of fisheries and population trends, we have proposed two novel indicators for harvested terrestrial species: the mean body mass indicator (MBMI) assessing whether hunters are relying...
Tipo: Peer-Reviewed Reports Palavras-chave: Africa; Bushmeat; Exploitation; Harvest; Indicator.
Ano: 2015
Imagem não selecionada

Imprime registro no formato completo
Can Logging in Equatorial Africa Affect Adjacent Parks? Ecology and Society
Baidya Roy, Somnath; Princeton University; sbroy@duke.edu; Walsh, Peter D; Princeton University; walsh@eva.mpg.de; Lichstein, Jeremy W; Princeton University; jwl@princeton.edu.
Tropical deforestation can cause fundamental regional-scale shifts in vegetation structure and diversity. This is particularly true in Africa. Although national parks are being established to protect areas from deforestation and to conserve biodiversity, these parks are not immune to disturbances outside their boundaries. We used regional-scale atmospheric simulation experiments to investigate how deforestation in timber concessions might affect precipitation inside adjacent, undisturbed national parks in the equatorial African countries of Gabon and the Republic of Congo. The experiments revealed a complex response. Some parks showed rainfall reduced as much as 15%, while others showed slight increases. Rainfall inside parks was particularly sensitive to...
Tipo: Peer-Reviewed Reports Palavras-chave: Deforestation; Logging; Precipitation; Climate change; Africa; Tropics; National park.
Ano: 2005
Imagem não selecionada

Imprime registro no formato completo
Compensation and Rewards for Environmental Services in the Developing World: Framing Pan-Tropical Analysis and Comparison Ecology and Society
Swallow, Brent M.; World Agroforestry Centre; B.Swallow@cgiar.org; Kallesoe, Mikkel F.; World Conservation Union; mfk@iucnsl.org; Iftikhar, Usman A.; World Conservation Union; usman.iftikhar@undp.org; van Noordwijk, Meine; World Agroforestry Centre; M.Vannoordwijk@cgiar.org; Bracer, Carina; Forest Trends; C.Bracer@climatefocus.com; Scherr, Sara J.; Ecoagriculture Partners; sscherr@ecoagriculture.org; Raju, K. V.; Institute for Social and Economic Change; kvraju@isec.ac.in; Duraiappah, Anantha Kumar; United Nations Environment Programme; Anantha.Duraiappah@unep.org; Ochieng, Benson O.; African Centre for Technology Studies; b.ochieg@ilegkenya.org; Mallee, Hein; International Development Research Centre; hmallee@idrc.org.sg; Rumley, Rachael; World Agroforestry Centre; r_rumley2@yahoo.com.
This is the first of a series of papers that review the state of knowledge and practice regarding compensation and rewards for environmental services in the developing world. The paper begins with an assessment of the historical development of compensation and reward mechanisms within a broader context of changing approaches to nature conservation and environmental policy. The assessment shows that greater interest in compensation and reward mechanisms has emerged within a policy context of changing approaches to nature conservation and flexible multi-stakeholder approaches to environmental management. In the developing world, an even greater variety of perspectives has emerged on the opportunities and threats for using compensation and rewards for...
Tipo: Peer-Reviewed Reports Palavras-chave: Africa; Asia; Compensation; Ecosystems service; Latin America; Payment for environmental service; Rewards.
Ano: 2009
Imagem não selecionada

Imprime registro no formato completo
Recent developments in biotech industry outside of the USA and Western Europe: Report from BIO 2005 Electron. J. Biotechnol.
Bourinbaiar,Aldar S..
The BIO 2005 international convention is the largest gathering of the biotech industry in the world. This year it was held on June 19-22 inside the behemoth Convention Center in downtown Philadelphia, bringing together 18,730 executives, investors, consultants, lawyers, politicians, scientists, and dreamers from 56 countries. More than 500 media representatives covered the event. Biotechnology research and findings presented by countries outside the USA and Western Europe has begun to make a significant impact on these annual BIO gatherings. The achievements of some of these countries are briefly reviewed.
Tipo: Journal article Palavras-chave: Africa; Asia; Bioindustry; Biotech; Biodefense; Eastern Europe; Latin America; Pacific; Russia.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000200002
Imagem não selecionada

Imprime registro no formato completo
Analysis of paternal lineages in Brazilian and African populations Genet. Mol. Biol.
Carvalho,Mónica; Brito,Pedro; Lopes,Virgínia; Andrade,Lisa; Anjos,Mª João; Real,Francisco Corte; Gusmão,Leonor.
The present-day Brazilian population is a consequence of the admixture of various peoples of very different origins, namely, Amerindians, Europeans and Africans. The proportion of each genetic contribution is known to be very heterogeneous throughout the country. The aim of the present study was to compare the male lineages present in two distinct Brazilian populations, as well as to evaluate the African contribution to their male genetic substrate. Thus, two Brazilian population samples from Manaus (State of Amazon) and Ribeirão Preto (State of São Paulo) and three African samples from Guinea Bissau, Angola and Mozambique were typed for a set of nine Y chromosome specific STRs. The data were compared with those from African, Amerindian and European...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosome Y; STRs; Lineages; Brazil; Africa.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000300004
Imagem não selecionada

Imprime registro no formato completo
Recomendacoes tecnicas para o cultivo de milho e de macunde (caupi) em Sao Tome e Principe. Infoteca-e
EMBRAPA. Centro de Pesquisa Agropecuaria dos Cerrados (Planaltina, DF)..
bitstream/item/107020/1/doc-11.pdf
Tipo: Documentos (INFOTECA-E) Palavras-chave: Caupi; Macunde; Cultivo; Recomendacao tecnica; Sao Tome e Principe; Savana; Maize; Cultivation.; Feijão de Corda; Milho; Zea Mays.; Vigna Unguiculata; Africa; Savannas; Tropical rain forests..
Ano: 1984 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549453
Imagem não selecionada

Imprime registro no formato completo
Lithospheric modification by extension and magmatism at the craton-orogenic boundary: North Tanzania Divergence, East Africa ArchiMer
Tiberi, C.; Gautier, S; Ebinger, C.; Roecker, S.; Plasman, M.; Albaric, J.; Deverchere, Jacques; Peyrat, S.; Perrot, Julie; Wambura, R. Ferdinand; Msabi, M.; Muzuka, A.; Mulibo, G.; Kianji, G..
We present a joint analysis of newly acquired gravity and teleseismic data in the North Tanzanian Divergence, where the lithospheric break-up is at its earliest stage. The impact of a mantle upwelling in more mature branches of the East African Rift has been extensively studied at a lithospheric scale. However, few studies have been completed that relate the deep-seated mantle anomaly detected in broad regional seismic tomography with the surface deformation observed in the thick Archaean Pan-African suture zone located in North Tanzania. Our joint inversion closes the gap between local and regional geophysical studies, providing velocity and density structures from the surface down to ca. 250 km depth with new details. Our results support the idea of a...
Tipo: Text Palavras-chave: Gravity anomalies and Earth structure; Africa; Joint inversion; Seismic tomography; Intra-plate processes.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00637/74944/76038.pdf
Imagem não selecionada

Imprime registro no formato completo
Astronomically forced variations in western African rainfall (21 N-20 S) during the Last Interglacial period ArchiMer
Govin, Aline; Varma, Vidya; Prange, Matthias.
This study documents the long-term evolution of western African precipitation during the Last Interglacial (LIG). We compare geochemical records obtained on nine sediment cores from the western African margin to a transient simulation (130–115 ka) performed with an ocean-atmosphere general circulation model and insolation as sole forcing. Good agreement between proxy records and model outputs indicates that long-term changes in western African precipitation largely responded to insolation variations during most of the LIG. After an early LIG dry phase (related to high-latitude iceberg melting or dating uncertainties), boreal summer insolation controlled the intensification of the North African monsoon between 127 and 122 ka, perhaps facilitating human...
Tipo: Text Palavras-chave: Last Interglacial; Africa; Precipitation; Astronomical forcing; Marine sediment cores; Model simulations.
Ano: 2014 URL: https://archimer.ifremer.fr/doc/00290/40164/38778.pdf
Registros recuperados: 333
Primeira ... 123456789 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional