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| Registros recuperados: 2.211 | |
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| Fraser, Evan D. G.; Leeds Institute for Environmental Science and Management; evan@env.leeds.ac.uk. |
| Between 1845 and 1850, a potato blight triggered a famine that killed or displaced 25% of the Irish population. Aside from its historical and cultural significance, the Irish Potato Famine illustrates how social and economic forces can create vulnerability to environmental disturbance. Therefore, studying the famine contributes to the on-going academic debate on theories to combine social and environmental data. This paper explores the conditions leading to the Irish famine using the “Entitlement” framework of Sen (1980) and the “Panarchy” model proposed by Gunderson and Holling (2002). Entitlement theory allows us to better understand how community food security may become vulnerable over time as different social... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Entitlement theory; Famine; Food security; Ireland; Panarchy. |
| Ano: 2003 |
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| Fillion, Myriam; Centro de Desenvolvimento Sustentável, Universidade de Brasília; Centre de recherche interdisciplinaire sur le bien-être, la santé, la société et l’environnement (CINBIOSE), Université du Québec à Montréal; Department of Biology, University of Ottawa; fillion.myriam@uqam.ca; Saint-Charles, Johanne; Centre de recherche interdisciplinaire sur le bien-être, la santé, la société et l’environnement (CINBIOSE), Université du Québec à Montréal; Faculté de communication, Université du Québec à Montréal; saint-charles.johanne@uqam.ca; Mongeau, Pierre; Faculté de communication, Université du Québec à Montréal; mongeau.pierre@uqam.ca; Mergler, Donna; Centre de recherche interdisciplinaire sur le bien-être, la santé, la société et l’environnement (CINBIOSE), Université du Québec à Montréal; mergler.donna@uqam.ca. |
| Social networks are a significant way through which rural communities that manage resources under common property regimes obtain food resources. Previous research on food security and social network analysis has mostly focused on egocentric network data or proxy variables for social networks to explain how social relations contribute to the different dimensions of food security. Whole-network approaches have the potential to contribute to former studies by revealing how individual social ties aggregate into complex structures that create opportunities or constraints to the sharing and distribution of food resources. We used a whole-network approach to investigate the role of network structure in contributing to the four dimensions of food security: food... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Amazon; Common property regimes; Community-based management; Fish consumption; Food security; Mercury; Natural resource management; Social networks; Strong ties. |
| Ano: 2015 |
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| Maldonado, Jorge H; CEDE - Department of Economics, Universidad de los Andes; jmaldona@uniandes.edu.co. |
| Many indigenous communities living in the Amazon rely on hunting and fishing to meet the majority of their protein needs. Despite the importance of these practices, few studies from the region have analyzed the socioeconomic drivers of hunting and fishing at the household level. We propose a household production model to assess the effect of key economic parameters on hunting and fishing in small indigenous communities located in the Ecuadorian Amazon, whose principal source of protein is derived from hunting and fishing. The model was validated using empirical data from two communities that reflect different levels of market integration and forest conservation. Demand and supply functions were generated from household data gathered over 19 months.... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Bushmeat; Economic model; Ecuador; Fishing; Food security; Hunting. |
| Ano: 2015 |
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| Pitcher, Tony J.; Policy and Ecosystem Restoration in Fisheries, Fisheries Centre, University of British Columbia.; pitcher.t@gmail.com; Lam, Mimi E; Policy and Ecosystem Restoration in Fisheries, Fisheries Centre, University of British Columbia.; m.lam@fisheries.ubc.ca. |
| Fisheries science and management have been shrouded in controversy and rhetoric for over 125 yrs. Human reliance on fish through history (and even prehistory) has impacted the sea and its resources. Global impacts are manifest today in threatened food security and vulnerable marine ecosystems. Growing consumer demand and subsidized industrial fisheries exacerbate ecosystem degradation, climate change, global inequities, and local poverty. Ten commonly advocated fisheries management solutions, if implemented alone, cannot remedy a history of intense fishing and serial stock depletions. Fisheries policy strategies evaluated along five performance modalities (ecological, economic, social, ethical, and institutional) suggest that composite management... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Back-to-the-future; Ecological ethics; Ecosystem restoration; Fisheries management; Fishing down the food web; Food security; Policy goals; The sea ahead; Trade-offs. |
| Ano: 2010 |
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| Fraser, Evan D. G.; Department of Geography, University of Guelph; University of Leeds; frasere@uoguelph.ca; Dougill, Andrew J; School of Earth and Environment, University of Leeds; a.j.dougill@leeds.ac.uk; Hubacek, Klaus; School of Earth and Environment, University of Leeds; hubacek@env.leeds.ac.uk; Quinn, Claire H.; School of Earth and Environment, University of Leeds; C.H.Quinn@leeds.ac.uk; Sendzimir, Jan; International Institute of Applied Systems Analysis (IIASA); sendzim@iiasa.ac.at; Termansen, Mette; School of Earth and Environment, University of Leeds; mette@env.leeds.ac.uk. |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptability; Climate change; Drought; Food security; Livelihoods; Vulnerability. |
| Ano: 2011 |
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| Ericksen, Polly J; ECI/GECAFS; polly.ericksen@eci.ox.ac.uk. |
| Assessing the vulnerability of broadly described food systems to global environmental change requires a new, synthetic approach. Food systems can best be conceptualized as the integration of humans and the environment or coupled social-ecological systems. However, much of the existing literature on vulnerability assessment focuses on either social or ecological systems, and conceptual gaps limit the holistic evaluation of linked systems in which both social and ecosystem outcomes are important. I suggest an approach with which to integrate factors across a food system to assess the system’s vulnerability to environmental change by focusing on key processes and system characteristics. However, the multiple objectives of different actors in... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Food security; Social-ecological systems; Vulnerability. |
| Ano: 2008 |
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| Streck,Nereu A.; Uhlmann,Lilian O.; Zanon,Alencar J.; Bisognin,Dilson A.. |
| The objective of this study was to simulate the impact of elevated temperature scenarios on leaf development of potato in Santa Maria, RS, Brazil. Leaf appearance was estimated using a multiplicative model that has a non-linear temperature response function which calculates the daily leaf appearance rate (LAR, leaves day-1) and the accumulated number of leaves (LN) from crop emergence to the appearance of the upper last leaf. Leaf appearance was estimated during 100 years in the following scenarios: current climate, +1 °C, +2 °C, +3 °C, +4 °C e +5 °C. The LAR model was estimated with coefficients of the Asterix cultivar in five emergence dates and in two growing seasons (Fall and Spring). Variable of interest was the duration (days) of the crop emergence... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum tuberosum; Global warming; Leaf appearance; Agricultural crops; Food security. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000400008 |
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| Burgos-Paz,William; Cerón-Muñoz,Mario; Solarte-Portilla,Carlos. |
| The aim was to establish the genetic diversity and population structure of three guinea pig lines, from seven production zones located in Nariño, southwest Colombia. A total of 384 individuals were genotyped with six microsatellite markers. The measurement of intrapopulation diversity revealed allelic richness ranging from 3.0 to 6.56, and observed heterozygosity (Ho) from 0.33 to 0.60, with a deficit in heterozygous individuals. Although statistically significant (p < 0.05), genetic differentiation between population pairs was found to be low. Genetic distance, as well as clustering of guinea-pig lines and populations, coincided with the historical and geographical distribution of the populations. Likewise, high genetic identity between improved and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Food security; Microsatellite; Population structure. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000400027 |
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| Registros recuperados: 2.211 | |
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