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1.
Sci Total Environ ; 643: 1223-1231, 2018 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-30189538

RESUMO

Environmental objectives tend to receive a push to the background in post-conflict scenarios. On the other hand, the processes displacement and refugee's relocation in post-conflict countries have been associated with different environmental impacts. Currently, Colombia faces a post-conflict scenario, which brings about relevant socio-environmental challenges: it is a mega-biodiverse country, it has millions of displaced people and is one of the most inequitable country in the world. Since there is a gap in post-conflict studies regarding the exploration of victims' involvement in environmental strategies, this paper aims to analyze victims' willingness to participate (WP) in Land Recovery Strategies (LRS) in post-conflict Colombia. This research (1) describes the socio-economic characteristics of forced-displacement victims from a Caribbean municipality of Colombia; (2) analyzes the victims' WP in hypothetical LRS and their preferred type of participation in the project, (3) identifies the way of grouping victims according their WP. Finally, (4) it analyzes the kind of benefits victims would prefer to receive in exchange for their participation in the LRS. Our results made evident that the majority of the consulted victims are willing to participate in LRS by giving up manual work time or in exchange of local ecological knowledge. We also found that the victims' participation in LRS associates to the age of the respondents, and whether they have benefited from government programs previously. Victims would prefer monetary retribution in exchange for their involvement in LRS, which may be explained by their vulnerable socioeconomic conditions. This research also demonstrates that victims with positive WP in LRS are a heterogeneous group. We highlight the need of actively involving women in LRS and other post-conflict projects in order to ensure their wellbeing. The results of this research are valuable, because they put forward the population of victims as an active performer within environmental sustainability.


Assuntos
Conservação dos Recursos Naturais , Refugiados , Região do Caribe , Colômbia , Meio Ambiente , Política Ambiental , Humanos
2.
Proc Natl Acad Sci U S A ; 113(51): 14552-14559, 2016 12 20.
Artigo em Inglês | MEDLINE | ID: mdl-27956605

RESUMO

Endangered forest-grassland mosaics interspersed with expanding agriculture and silviculture occur across many parts of the world, including the southern Brazilian highlands. This natural mosaic ecosystem is thought to reflect alternative stable states driven by threshold responses of recruitment to fire and moisture regimes. The role of adaptive human behavior in such systems remains understudied, despite its pervasiveness and the fact that such ecosystems can exhibit complex dynamics. We develop a nonlinear mathematical model of coupled human-environment dynamics in mosaic systems and social processes regarding conservation and economic land valuation. Our objective is to better understand how the coupled dynamics respond to changes in ecological and social conditions. The model is parameterized with southern Brazilian data on mosaic ecology, land-use profits, and questionnaire results concerning landowner preferences and conservation values. We find that the mosaic presently resides at a crucial juncture where relatively small changes in social conditions can generate a wide variety of possible outcomes, including complete loss of mosaics; large-amplitude, long-term oscillations between land states that preclude ecosystem stability; and conservation of the mosaic even to the exclusion of agriculture/silviculture. In general, increasing the time horizon used for conservation decision making is more likely to maintain mosaic stability. In contrast, increasing the inherent conservation value of either forests or grasslands is more likely to induce large oscillations-especially for forests-due to feedback from rarity-based conservation decisions. Given the potential for complex dynamics, empirically grounded nonlinear dynamical models should play a larger role in policy formulation for human-environment mosaic ecosystems.


Assuntos
Agricultura/métodos , Conservação dos Recursos Naturais , Florestas , Pradaria , Algoritmos , Biodiversidade , Brasil , Clima , Ecologia , Humanos , Dinâmica não Linear , Dinâmica Populacional , Comportamento Social , Árvores
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