Testing the impact of social forces on the evolution of Sahelian farming systems: a combined agent-based modeling and anthropological approach

This article presents the results of a methodology based on an extensive sociological fieldwork in three different sites settled along a gradient of aridity in Nigerien Sahel. This fieldwork led to build a set of rules for the behaviour of individuals in non-pastoralist villages. We implemented thes...

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Autores principales: Saqalli, M., Gerard, Bruno G., Bielders, Charles L., Defourny, Pierre
Formato: Journal Article
Lenguaje:Inglés
Publicado: Elsevier 2010
Materias:
Acceso en línea:https://hdl.handle.net/10568/2417
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author Saqalli, M.
Gerard, Bruno G.
Bielders, Charles L.
Defourny, Pierre
author_browse Bielders, Charles L.
Defourny, Pierre
Gerard, Bruno G.
Saqalli, M.
author_facet Saqalli, M.
Gerard, Bruno G.
Bielders, Charles L.
Defourny, Pierre
author_sort Saqalli, M.
collection Repository of Agricultural Research Outputs (CGSpace)
description This article presents the results of a methodology based on an extensive sociological fieldwork in three different sites settled along a gradient of aridity in Nigerien Sahel. This fieldwork led to build a set of rules for the behaviour of individuals in non-pastoralist villages. We implemented these rules into an agent-based model simulating three village archetypes. Each archetype includes biophysical, economical, social agricultural and livestock modules. Results from simulations with no social transition processes show that villages specialize themselves into different economic activities according to natural resource specificities: A decreasing intensification gradient is observed from the most favoured site, with more local productions and good ecological indicators, to the less-favoured site, with a growing proportion of the population wealth coming from migration remittances and “off-shore” livestock. Two family transition processes were implemented, following field observations and literature-based hypotheses: family organizations evolve between a patriarchal mode and a non-cooperative mode following tensions due to income redistribution. Family inheritance systems evolve from a “customary” one-heir mode to a “local Muslim” mode in which all males inherits land. This evolution depends on family tensions due to land availability. Once introducing these processes, the population of each site differentiates itself into specialized groups according to size, assets and social status. Meanwhile, the group proportions and specializations strongly vary according to the sites but they are all characterized by the emergence of individualistic family types and the increase of the village populations’ robustness.
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spelling CGSpace24172025-06-13T04:20:11Z Testing the impact of social forces on the evolution of Sahelian farming systems: a combined agent-based modeling and anthropological approach Saqalli, M. Gerard, Bruno G. Bielders, Charles L. Defourny, Pierre social welfare farming systems models This article presents the results of a methodology based on an extensive sociological fieldwork in three different sites settled along a gradient of aridity in Nigerien Sahel. This fieldwork led to build a set of rules for the behaviour of individuals in non-pastoralist villages. We implemented these rules into an agent-based model simulating three village archetypes. Each archetype includes biophysical, economical, social agricultural and livestock modules. Results from simulations with no social transition processes show that villages specialize themselves into different economic activities according to natural resource specificities: A decreasing intensification gradient is observed from the most favoured site, with more local productions and good ecological indicators, to the less-favoured site, with a growing proportion of the population wealth coming from migration remittances and “off-shore” livestock. Two family transition processes were implemented, following field observations and literature-based hypotheses: family organizations evolve between a patriarchal mode and a non-cooperative mode following tensions due to income redistribution. Family inheritance systems evolve from a “customary” one-heir mode to a “local Muslim” mode in which all males inherits land. This evolution depends on family tensions due to land availability. Once introducing these processes, the population of each site differentiates itself into specialized groups according to size, assets and social status. Meanwhile, the group proportions and specializations strongly vary according to the sites but they are all characterized by the emergence of individualistic family types and the increase of the village populations’ robustness. 2010-11 2010-09-12T09:21:58Z 2010-09-12T09:21:58Z Journal Article https://hdl.handle.net/10568/2417 en Limited Access Elsevier Saqalli, M.; Gérard, B.; Bielders, C.; Defourny, P. 2010.Testing the impact of social forces on the evolution of Sahelian farming systems: a combined agent-based modeling and anthropological approach. Ecological Modelling. 221(21): 2714-2727
spellingShingle social welfare
farming systems
models
Saqalli, M.
Gerard, Bruno G.
Bielders, Charles L.
Defourny, Pierre
Testing the impact of social forces on the evolution of Sahelian farming systems: a combined agent-based modeling and anthropological approach
title Testing the impact of social forces on the evolution of Sahelian farming systems: a combined agent-based modeling and anthropological approach
title_full Testing the impact of social forces on the evolution of Sahelian farming systems: a combined agent-based modeling and anthropological approach
title_fullStr Testing the impact of social forces on the evolution of Sahelian farming systems: a combined agent-based modeling and anthropological approach
title_full_unstemmed Testing the impact of social forces on the evolution of Sahelian farming systems: a combined agent-based modeling and anthropological approach
title_short Testing the impact of social forces on the evolution of Sahelian farming systems: a combined agent-based modeling and anthropological approach
title_sort testing the impact of social forces on the evolution of sahelian farming systems a combined agent based modeling and anthropological approach
topic social welfare
farming systems
models
url https://hdl.handle.net/10568/2417
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