Use este identificador para citar ou linkar para este item: https://repositorio.ufrn.br/jspui/handle/123456789/20481
Título: A partilha de alimentos entre famílias de pescadores do litoral potiguar sob a perspectiva da ecologia humana
Título(s) alternativo(s): Food sharing among fishers' families on the coast of Rio Grande do Norte under the human ecology perspective
Autor(es): Costa, Mikaelle Kaline Bezerra da
Palavras-chave: Imprevisibilidade ambiental;Dieta;Altruísmo recíproco;Dependência pesqueira
Data do documento: 1-Mar-2013
Editor: Universidade Federal do Rio Grande do Norte
Citação: COSTA, Mikaelle Kaline Bezerra da. A partilha de alimentos entre famílias de pescadores do litoral potiguar sob a perspectiva da ecologia humana. 2013. 106 f. Dissertação (Mestrado em Desenvolvimento e Meio Ambiente) – Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente - PRODEMA. Universidade Federal do Rio Grande do Norte, 2013.
Resumo: Food sharing is a common practice in small groups and it is understood by many authors as a behavior shaped by evolution, whose goals would be to decrease the risks of food shortage in harsher periods, to favor kin, and indirectly, favor one’s own individual fitness, to avoid conflicts, and even to establish alliances and partnerships. In this context, the current study describes the diet and investigates the food sharing behavior among families from an artisanal, but commercial, fishing village in the municipality of Touros, Rio Grande do Norte State (NE Brazil) with a high dependency on fishing resources affected by seasonal environmental fluctuations. The study was divided in two parts, here presented as two distinct chapters. For the first chapter, 32 families were sampled, after being divided in two groups of 16 families each: one exclusively dependent (FD) and another non-exclusively dependent on fisheries (NFD) as its main economic activity. The diet of these families was registered through the 24h- recall method along 10 consecutive days per month both in January (locally considered the most productive month for fisheries) and in June (considered the least productive month for fisheries). The diet and food sharing of the FD families were compared to the NFD for the high and low fisheries productivity period. This comparison showed that both groups, regardless of their dependence level on fisheries, have their diet and food sharing directly affected by the fisheries success. However, FD families tended to share slightly more food in periods of high productivity and they were also more subjected to a lower quality diet in periods of food shortage than NFD families. One of the likely explanations for such differences is the fact that FD families are more subjected to environmental unpredictability and sharing would help decrease such uncertainty. Such higher unpredictability associated to a consequent lower income would also explain the ingestion of lower nutritional quality food during shortage periods. For the second chapter, only the FD families were sampled, although in this case the sample took place along seven consecutive days per month during 12 months, between September 2011 and August 2012 (the three extra sampling days in January and June were not considered in this chapter), which allo wed the register of diet, food sharing and fisheries along the whole year. To investigate the food sharing behavior of these families, some evolutionary models were tested, such as kinship selection, reciprocal altruism, and tolerated theft (or tolerated scrounge), besides physical aspects that could indirectly support some of these models, such as geographical distance. These models were used with the intent of explaining the strategies used by these families in order to decrease the nutritional risks brought about by fisheries seasonal fluctuations. The results showed that FD families shared food mostly due to reciprocal altruism, and, secondarily due to the distance between households. Families tended to share more and more often with families that paid their favor back, but especially with those that were living geographically close. Despite the commercial insertion of this group, basal mechanisms, such as reciprocal altruism, still work, probably because the essential conditions for its continuation are still there, such as living in small groups and having repetitive interactions between cooperative pairs. This suggests that commerce, with all of its likely associated socioeconomic changes, is not necessarily a disruptor of evolutionary cooperation mechanisms (at least for reciprocal altruism), probably as long as other conditions, such as group size and constant interactions, are kept. As such, this study not only details how the diet and food sharing of coastal families are affected directly and indirectly by fisheries, but it also helps understand cooperation maintenance mechanisms regarding food sharing.
metadata.dc.description.resumo: A partilha de alimentos é uma prática comum em pequenos agrupamentos principalmente entre parentes, comportamento evolutivo humano, abordado na ecologia humana como um redutor dos riscos a segurança alimentar. Dessa forma o estudo objetivou explicar o comportamento de partilha de alimentos entre famílias que vivem em uma vila de pescadores pertencente a Touros, RN, com alta dependência dos recursos pesqueiros para economia, e nutrição familiar, e que têm as flutuação ambientais como um redutor da capacidade de pesca. Para testar o comportamento de partilha de alimentos entre essas famílias foram testados modelos evolutivos de partilha como: seleção de parentesco, altruísmo recíproco, roubo tolerado e distância, para explicar as estratégias utilizadas pelas famílias da vila para reduzir os riscos nutricionais causados pelo declínio do sucesso de captura. Foram inseridas ao longo do estudo 32 família divididas em 2 grupos com 16 famílias cada: um dependente exclusivamente (DE) e outro não dependente exclusivamente (NDE) da pesca como atividade econômica. Através de um recordatório de 24 foras , durante 7 dias consecutivos ao mês, durante 12 meses consecutivos entre setembro de 2011 à agosto de 2012, fazendo um registro temporal de toda dieta, partilha e produção pesqueira das famílias. A dieta das famílias apresentou-se sob influência do comercio já inserido na vila, aumentando o consumo de alimentos industrializados de baixa qualidade . Na partilha a entrada e saída de alimentos que subsidiam a carência proteica principalmente em períodos de declino pesqueiro no núcleo familiar foi elevado.Dentre os modelos testados a existência do altruísmo recíproco entre as famílias é melhor respondeu as necessidades nutricionais das famílias, e a distância entre famílias influenciou mais que a relação de parentesco na escolha de parceiros para a partilha.
URI: http://repositorio.ufrn.br/handle/123456789/20481
Aparece nas coleções:PRODEMA - Mestrado em Desenvolvimento e Meio Ambiente

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
MikaelleKalineBezerraDaCosta_DISSERT.pdf2,48 MBAdobe PDFThumbnail
Visualizar/Abrir


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.