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  1. AU="Wittman, Hannah"
  2. AU="Sgolastra, Federica"
  3. AU="Kim, Dennis H"
  4. AU="Thai, Linh Duy"
  5. AU=Walker Scott C
  6. AU="Sheridan, Katherine"
  7. AU="Brown, Sharlie B"
  8. AU=Walker Kathleen
  9. AU="Miller, Donald G"
  10. AU="Sendino, O"
  11. AU="Rao, Arya"
  12. AU="Wong, Gary K W"

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  1. Artikel ; Online: Food sovereignty: An inclusive model for feeding the world and cooling the planet

    Wittman, Hannah

    One Earth. 20232023 May 19, May 19, v. 6, no. 5 p.474-478

    2023  

    Abstract: The framework of food sovereignty emerged on the global stage in the mid-1990s as diverse social movements representing peasant, Indigenous, fisher, and small-scale farming communities were experiencing a confluence of crises—structural adjustment, ... ...

    Abstract The framework of food sovereignty emerged on the global stage in the mid-1990s as diverse social movements representing peasant, Indigenous, fisher, and small-scale farming communities were experiencing a confluence of crises—structural adjustment, rising threats to biodiversity, climate change, rural poverty, and growing levels of world hunger— that continue to accelerate into the present day. In response to these challenges, food sovereignty movements promote policies to ensure rights to healthy and culturally appropriate food, produced through ecologically sustainable methods. The food sovereignty framework emerges from participatory governance structures at intersecting scales—from the local to the global—to support people’s rights to define their own food and agricultural systems. This primer examines the arguments for a rights-based food sovereignty framework to support diets for planetary health and identifies cross-sectoral roles, responsibilities, and challenges in promoting diversified agroecosystems that can feed the world and cool the planet.
    Schlagwörter agroecosystems ; biodiversity ; climate change ; food sovereignty ; governance ; models ; peasantry ; rural poverty
    Sprache Englisch
    Erscheinungsverlauf 2023-0519
    Umfang p. 474-478.
    Erscheinungsort Elsevier Inc.
    Dokumenttyp Artikel ; Online
    ISSN 2590-3322
    DOI 10.1016/j.oneear.2023.04.011
    Datenquelle NAL Katalog (AGRICOLA)

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  2. Artikel: Bringing the city to the country? Responsibility, privilege and urban agrarianism in Metro Vancouver

    Bowness, Evan / Wittman, Hannah

    Journal of peasant studies. 2021 Sept. 19, v. 48, no. 6

    2021  

    Abstract: This paper furthers the development of the theory of agrarian citizenship–the bundle of rights and responsibilities underpinning the food sovereignty movement. Through interviews with 34 participants engaged with urban agriculture in Metro Vancouver, ... ...

    Abstract This paper furthers the development of the theory of agrarian citizenship–the bundle of rights and responsibilities underpinning the food sovereignty movement. Through interviews with 34 participants engaged with urban agriculture in Metro Vancouver, Canada, we introduce the concept of urban agrarianism, defined as an urban ethic of care for foodlands and, by extension, a relational responsibility to exercise solidarity with those who cultivate and harvest food. We argue that urban people, especially those with privilege, should recognize impacts associated with their social-ecological metabolism, and mobilize for food sovereignty struggles—including for the repatriation of lands stolen by colonial dispossession.
    Schlagwörter food sovereignty ; land reform ; metabolism ; peasantry ; urban agriculture ; Canada
    Sprache Englisch
    Erscheinungsverlauf 2021-0919
    Umfang p. 1141-1166.
    Erscheinungsort Routledge
    Dokumenttyp Artikel
    ISSN 1743-9361
    DOI 10.1080/03066150.2020.1803842
    Datenquelle NAL Katalog (AGRICOLA)

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  3. Artikel: Diversification supports farm income and improved working conditions during agroecological transitions in southern Brazil

    Stratton, Anne Elise / Wittman, Hannah / Blesh, Jennifer

    Agronomy for sustainable development. 2021 June, v. 41, no. 3

    2021  

    Abstract: Management of crop diversity for improved agroecosystem functioning can provide economic co-benefits to farmers. Yet, there remain critical gaps in understanding how farm management practices evolve through agroecological transitions and how ... ...

    Abstract Management of crop diversity for improved agroecosystem functioning can provide economic co-benefits to farmers. Yet, there remain critical gaps in understanding how farm management practices evolve through agroecological transitions and how agroecological practices affect socioeconomic outcomes such as income and working conditions. We conducted a case study of farms transitioning from conventional tobacco production to diversified agroecological management in a participatory certification network in southern Brazil. We purposively sampled farms along a transition gradient and conducted crop diversity and management surveys and semi-structured, in-depth interviews with household members. Using these data, we assessed indicators of ecological management, income, and working conditions across three transition stages—conventional, transitioning, and agroecological. We found that ecological management indicators increased in magnitude and evenness by transition stage, as transitioning farmers increasingly used practices to support ecological complexity. Agroecological farmers utilized system redesign, a transformative approach to agroecosystem management, rather than efficiency-based or substitution-oriented practices adopted by conventional and transitioning farmers. While farms in transition reported more difficult working conditions and lower incomes, agroecological farmers had similar per capita working hours and improved work quality and occupational safety relative to conventional farmers in the region. On a per capita basis, experienced agroecological farmers earned similar net agricultural incomes and higher net household incomes than conventional farmers, by reducing agricultural expenses and diversifying their markets and livelihoods. Our study is the first to our knowledge to use a transition gradient approach to examine how agroecological transition stage affects both ecological and socioeconomic indicators on farms, providing insights into the processes and pathways by which farmers overcome challenges during transitions. Results highlight the potential for stable profits and improved working conditions on farms following agroecological transitions, within a supportive policy and market context.
    Schlagwörter agroecosystems ; agronomy ; case studies ; certification ; farm income ; farm management ; issues and policy ; markets ; occupational health and safety ; sustainable development ; tobacco ; Brazil
    Sprache Englisch
    Erscheinungsverlauf 2021-06
    Umfang p. 35.
    Erscheinungsort Springer Paris
    Dokumenttyp Artikel
    Anmerkung NAL-AP-2-clean
    ISSN 1774-0746
    DOI 10.1007/s13593-021-00688-x
    Datenquelle NAL Katalog (AGRICOLA)

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  4. Buch: Food sovereignty in Canada

    Wittman, Hannah

    creating just and sustainable food systems

    2011  

    Verfasserangabe ed. by Hannah Wittman
    Schlagwörter Alternative agriculture ; Food sovereignty ; Sustainable agriculture
    Sprache Englisch
    Umfang XII, 220 S., graph. Darst.
    Verlag Fernwood Publishing
    Erscheinungsort Winnipeg u.a.
    Dokumenttyp Buch
    Anmerkung Enth. 11 Beitr. ; Includes bibliographical references and index
    ISBN 1552664430 ; 9781552664438
    Datenquelle ECONomics Information System

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  5. Artikel ; Online: Public Food Procurement for Farm System Diversification

    Valencia, V. / Wittman, Hannah / Blesh, Jennifer

    Public food procurement for sustainable food systems and healthy diets ; ISBN: 9789251354759

    2021  

    Abstract: Diversified farming systems have received considerable attention for their potential to contribute to environmentally sustainable and resilient food systems. This chapter discusses the potential of public procurement programmes in building public support ...

    Abstract Diversified farming systems have received considerable attention for their potential to contribute to environmentally sustainable and resilient food systems. This chapter discusses the potential of public procurement programmes in building public support for diversified farming systems. Focusing on Brazil’s flagship public procurement programme, the National School Feeding Programme (PNAE, by its Portuguese acronym), this chapter analyses how public procurement may drive farm diversification and the adoption of agroecological practices among small-scale farmers. It also explores the limitations of public procurement programmes in promoting agrobiodiversity and agroecological practices, and potential ways for achieving broader impacts for environmental outcomes.
    Schlagwörter Life Science
    Sprache Englisch
    Verlag FAO
    Erscheinungsland nl
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  6. Artikel: A trait–environment relationship approach to participatory plant breeding for organic agriculture

    Rolhauser, Andrés G. / Windfeld, Emma / Hanson, Solveig / Wittman, Hannah / Thoreau, Chris / Lyon, Alexandra / Isaac, Marney E.

    The new phytologist. 2022 Aug., v. 235, no. 3

    2022  

    Abstract: The extent of intraspecific variation in trait–environment relationships is an open question with limited empirical support in crops. In organic agriculture, with high environmental heterogeneity, this knowledge could guide breeding programs to optimize ... ...

    Abstract The extent of intraspecific variation in trait–environment relationships is an open question with limited empirical support in crops. In organic agriculture, with high environmental heterogeneity, this knowledge could guide breeding programs to optimize crop attributes. We propose a three‐dimensional framework involving crop performance, crop traits, and environmental axes to uncover the multidimensionality of trait–environment relationships within a crop. We modeled instantaneous photosynthesis (Aₛₐₜ) and water‐use efficiency (WUE) as functions of four phenotypic traits, three soil variables, five carrot (Daucus carota) varieties, and their interactions in a national participatory plant breeding program involving a suite of farms across Canada. We used these interactions to describe the resulting 12 trait–environment relationships across varieties. We found one significant trait–environment relationship for Aₛₐₜ (taproot tissue density–soil phosphorus), which was consistent across varieties. For WUE, we found that three relationships (petiole diameter–soil nitrogen, petiole diameter–soil phosphorus, and leaf area–soil phosphorus) varied significantly across varieties. As a result, WUE was maximized by different combinations of trait values and soil conditions depending on the variety. Our three‐dimensional framework supports the identification of functional traits behind the differential responses of crop varieties to environmental variation and thus guides breeding programs to optimize crop attributes from an eco‐evolutionary perspective.
    Schlagwörter Daucus carota ; carrots ; intraspecific variation ; nitrogen ; organic production ; petioles ; phenotype ; phosphorus ; photosynthesis ; soil ; tap roots ; water use efficiency ; Canada
    Sprache Englisch
    Erscheinungsverlauf 2022-08
    Umfang p. 1018-1031.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung JOURNAL ARTICLE
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    DOI 10.1111/nph.18203
    Datenquelle NAL Katalog (AGRICOLA)

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  7. Artikel: Food Sovereignty and Fome Zero: Connecting Public Food Procurement Programmes to Sustainable Rural Development in Brazil

    Wittman, Hannah / Jennifer Blesh

    Journal of agrarian change. 2017 Jan., v. 17, no. 1

    2017  

    Abstract: The global discourse on food sovereignty suggests several mechanisms for improving food security and agricultural livelihoods, including redistributive land reform and restructuring of markets to improve food distribution and access. In Brazil, the Fome ... ...

    Abstract The global discourse on food sovereignty suggests several mechanisms for improving food security and agricultural livelihoods, including redistributive land reform and restructuring of markets to improve food distribution and access. In Brazil, the Fome Zero (Zero Hunger) social welfare programme has created innovative links between public nutrition and food security programmes and rural development initiatives through mediated market support for the family farm sector. We report on a participatory assessment of the experience of land reform beneficiaries in seven municipalities in Mato Grosso, Brazil, who were contracted to produce food for the Programa de Aquisição de Alimentos (Food Procurement Programme, PAA) and the Programa Nacional de Alimentação Escolar (National School Feeding Programme, PNAE) under the umbrella of Fome Zero. This analysis offers insight into the opportunities and challenges related to participation in mediated ‘farm‐to‐institution’ food procurement programmes, and assesses their influence on key food sovereignty principles, including agro‐ecological transition, increased market stability and farmer autonomy.
    Schlagwörter agroecology ; family farms ; farmers ; food security ; food sovereignty ; hunger ; land reform ; livelihood ; markets ; nutrition ; rural development ; Brazil
    Sprache Englisch
    Erscheinungsverlauf 2017-01
    Umfang p. 81-105.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung JOURNAL ARTICLE
    ZDB-ID 2056854-X
    ISSN 1471-0366 ; 1471-0358
    ISSN (online) 1471-0366
    ISSN 1471-0358
    DOI 10.1111/joac.12131
    Datenquelle NAL Katalog (AGRICOLA)

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  8. Artikel: Structuring Markets for Resilient Farming Systems

    Valencia, Vivian / Wittman, Hannah / Blesh, Jennifer

    Agronomy for sustainable development. 2019 Apr., v. 39, no. 2

    2019  

    Abstract: Diversified farms have received considerable attention for their potential to contribute to environmentally sustainable, resilient, and socially just food systems. In response, some governments are building new forms of public support for social- ... ...

    Abstract Diversified farms have received considerable attention for their potential to contribute to environmentally sustainable, resilient, and socially just food systems. In response, some governments are building new forms of public support for social-ecological services through the creation of mediated markets, such as targeted public food procurement programs. Here, we examine the relationship between farmer participation in Brazil’s National School Feeding Program and farm diversification and household autonomy, as key indicators of farm household resilience. We hypothesized that two key features of the food procurement program—structured demand for diversified food products, and a price premium for certified organic and agroecological production—would increase farm-level agrobiodiversity and the use of agroecological practices. We designed a comparative study between family farmers who do, and do not, participate in Brazil’s National School Feeding Program in the plateau region of Santa Catarina in Southern Brazil. We used semi-structured surveys to collect data on farm agrobiodiversity, management practices, and farm household autonomy, and we conducted land use history assessments. Here, we suggest for the first time that the National School Feeding Program played a role in driving the following: (1) transitions on family farms from low agrobiodiversity, input-intensive farming systems to diversified farming systems (i.e., horticultural production) and (2) a significant increase in the cropped area under diversified farming systems. This transition was supported by making horticultural production an economically viable alternative to field crops typically linked to volatile, unpredictable markets. The convergence of public policies supporting mediated markets, increased farm household autonomy, and farm diversification represents an integrated mechanism with the potential to enhance food system resilience.
    Schlagwörter agroecology ; biodiversity ; economic sustainability ; family farms ; farmers ; farming systems ; field crops ; foods ; horticulture ; land use ; markets ; prices ; public policy ; surveys ; Brazil
    Sprache Englisch
    Erscheinungsverlauf 2019-04
    Umfang p. 25.
    Erscheinungsort Springer Paris
    Dokumenttyp Artikel
    ISSN 1774-0746
    DOI 10.1007/s13593-019-0572-4
    Datenquelle NAL Katalog (AGRICOLA)

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  9. Artikel ; Online: Examining school-level implementation of British Columbia, Canada's school food and beverage sales policy: a realist evaluation.

    Levay, Adrienne V / Chapman, Gwen E / Seed, Barb / Wittman, Hannah

    Public health nutrition

    2020  Band 23, Heft 8, Seite(n) 1460–1471

    Abstract: Objective: To identify key school-level contexts and mechanisms associated with implementing a provincial school food and beverage policy.: Design: Realist evaluation. Data collection included semi-structured interviews (n 23), structured ... ...

    Abstract Objective: To identify key school-level contexts and mechanisms associated with implementing a provincial school food and beverage policy.
    Design: Realist evaluation. Data collection included semi-structured interviews (n 23), structured questionnaires (n 62), participant observation at public events (n 3) and scans of school, school district and health authority websites (n 67). The realist heuristic, context + mechanism → outcome configuration was used to conduct the analysis.
    Setting: Public schools in five British Columbia (BC), Canada school districts.
    Participants: Provincial and regional health and education staff, private food vendors and school-level stakeholders.
    Results: We identified four mechanisms influencing the implementation of BC's school food and beverage sales policy. First, the mandatory nature of the policy triggered some actors' implementation efforts, influenced by their normative acceptance of the educational governance system. Second, some expected implementers had an opposite response to the mandate where they ignored or 'skirted' the policy, influenced by values and beliefs about the role of government and school food. A third mechanism related to economics demonstrated ways vendors' responses to school demand for compliance with nutritional Guidelines were mediated by beliefs about food preferences of children, health and food. The last mechanism demonstrated how resource constraints and lack of capacity led otherwise motivated stakeholders to not implement the mandatory policy.
    Conclusion: Implementation of the food and beverage sales policy at the school level is shaped by interactions between administrators, staff, parent volunteers and vendors with contextual factors such as varied motivations, responsibilities and capacities.
    Mesh-Begriff(e) Beverages/economics ; British Columbia ; Child ; Commerce ; Food/economics ; Food Services/economics ; Food Services/standards ; Humans ; Interviews as Topic ; Nutrition Policy ; Program Evaluation ; Qualitative Research ; Schools ; Surveys and Questionnaires
    Sprache Englisch
    Erscheinungsdatum 2020-03-11
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1436024-x
    ISSN 1475-2727 ; 1368-9800
    ISSN (online) 1475-2727
    ISSN 1368-9800
    DOI 10.1017/S1368980019003987
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Buch: Environment and citizenship in Latin America

    Latta, Alex / Wittman, Hannah

    natures, subjects and struggles

    (CEDLA Latin America studies (CLAS) ; 101)

    2012  

    Verfasserangabe ed. by Alex Latta & Hannah Wittman
    Serientitel CEDLA Latin America studies (CLAS) ; 101
    Schlagwörter Citizenship ; Environmental policy/Citizen participation ; Environmental protection/Citizen participation ; Nature and civilization ; Political ecology ; Sustainable development
    Sprache Englisch
    Umfang VII, 254 S., Ill., 24 cm
    Verlag Berghahn Books
    Erscheinungsort New Yorku.a.
    Dokumenttyp Buch
    Anmerkung Literaturangaben
    ISBN 9780857457479 ; 9780857457486 ; 0857457470 ; 0857457489
    Datenquelle Ehemaliges Sondersammelgebiet Küsten- und Hochseefischerei

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