Banca de DEFESA: MAÍRA FONTES MANZAN

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : MAÍRA FONTES MANZAN
DATE: 29/08/2025
TIME: 08:00
LOCAL: SALA DE REUNIÕES DO DECOL/CB/UFRN e GOOGLE MEET
TITLE:

Disruption in the Flow of Nature’s Benefits in Coastal Socio-Ecological Systems: The Impact of the Oil Spill and the Pandemic in the Unequal Context of Fishing Communities

KEY WORDS:

Socio-ecological resilience, Marine ecosystem services, Environmental valuation, Human ecology, Artisanal fishers

PAGES: 153
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUMMARY:

Events that impact marine ecosystem services, such as oil spills, compromise not only ecological integrity but also income, food security, and the well-being of those who depend on the sea, such as fishers. At the same time, pandemics trigger measures such as social isolation, affecting commercial activities and livelihoods. Understanding these repercussions requires a comprehensive approach. In this context, the conceptual framework of social-ecological systems provides a theoretical basis that integrates social and economic spheres with the biophysical dynamics of ecosystems. This intrinsic interconnection underlies the central question of this dissertation: how do social-ecological systems respond to major shocks, taking as a case study the responses of fishing communities to a large-scale oil spill and the COVID-19 pandemic. To address this, we interviewed 422 small-scale fishers along the northeastern Brazilian coast, a region severely affected by these events. Using a semi-structured questionnaire, we explored the periods before, during, and after the shocks, allowing us to identify shifts in fishers’ perceptions. This dissertation is structured into three chapters, examining the cultural, social, and economic dimensions of the impacts faced by fishing communities. The first two chapters focus on fishers’ perceptions of losses in Cultural Ecosystem Services (CES) following the shocks. In the first chapter, we empirically tested the relationship between ecosystem services and well-being proposed by the Millennium Ecosystem Assessment, focusing on connections between affected CES and fishers’ well-being components. For each shock, we applied a Generalized Additive Mixed Model (GAMM) to analyze associations with the number of CES lost and a Multiple Correspondence Analysis (MCA) to assess links with individual CES categories. Consistent patterns across analyses indicated that CES losses were associated with well-being components impacted by the shocks, rather than with those already compromised before the events. The second chapter explored CES loss perceptions among minority groups. Through GAMMs and GLMMs, we found that fishers facing food insecurity and women fishers reported significantly greater CES losses. In the final chapter, we investigated the effects of shocks on the livelihoods and subsistence of fishing-dependent communities. Using Repeated Measures GLMMs, we examined which fishing systems and socioeconomic characteristics represented vulnerability factors for fishers during crises. This dissertation contributes to identifying community segments that deserve special attention in future events, offering a holistic perspective on the impacts experienced by fishing communities during extraordinary events. Understanding social-ecological dynamics is essential for designing socio-environmental management strategies tailored to specific needs, supporting adaptive capacity, and mitigating the impacts of extreme shocks.

COMMITTEE MEMBERS:
Externo à Instituição - CARLA ISOBEL ELLIFF - USP
Externa à Instituição - ANDREA LEME DA SILVA
Interno - ***.178.178-** - EDSON APARECIDO VIEIRA FILHO - UESC-BA
Interno - 1362202 - JOSE LUIZ DE ATTAYDE
Presidente - 1718747 - PRISCILA FABIANA MACEDO LOPES