Human demands and activities introduce cross-scale pressures in different systems and scales, affecting the provision of ecosystem services and causing an unbalanced effect on human well-being within the territory. The existing institutions are frequently considered panaceas since they do not take into account the different spatial and jurisdictional scales of the social-ecological systems (SES). This paper aims to broaden the existing DPSIR (Drivers–Pressures–State–Impact–Response) assessment frameworks to strengthen the ecosystem approach and promote an integrated cross-scale perspective. The concept of the Cross-scale Ecosystem-Based Assessment (DIET) was developed and applied to a case study on the demand of seafood provisions. The assessment has indicated that the activities related to the specified demand occur at different scales and generate cumulative impacts and pressures on other scales, especially in the coastal zone. The existing responses to address this issue are highly fragmented, both spatially and among sectors. DIET was applied here to the land–sea interface to illustrate how coastal zone governance and management can be improved and how the impact of certain drivers or activities in the SES can be reduced. DIET may help to reduce the governance morbidity and prevent panaceas by fostering the integration of institutions in pursuing flexible, adaptive and fit-for-purpose policies to address complex issues so as to secure social-ecological justice and well-being for all humans.
RESUMO A complexidade das mudanças globais e seus efeitos nos sistemas socioecológicos motivam o desenvolvimento de abordagens de gestão mais integradas e inovadoras para equilibrar as relações sociedade-natureza. Com o desafio de suprir demandas globais e considerar impactos locais, a Gestão Baseada em Ecossistemas (GBE) aparece como uma estratégia de avaliação e ação com potencial de qualificar as interações socioecológicas. Nesse sentido, as praias arenosas surgem como um importante e complexo sistema socioecológico cuja gestão é historicamente realizada de forma reducionista, imediatista, fragmentada e tecnocrática, o que são desafios para a implementação da GBE. Dessa forma, esse artigo visou discutir as oportunidades de incorporar a GBE na gestão de praias e os desafios para sua implementação na América Latina e Caribe. Assim, observa-se que a GBE pode orientar a adequação dos processos da gestão de praias. Apesar dos desafios enfrentados na AL&C sua implementação é uma ferramenta a ser fortalecida na região por meio da transdisciplinaridade e cooperação internacional para promover a sustentabilidade das praias.
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