Dietary breadth of the animal protein consumed by riverine communities in the Tapajós National Forest, Brazil

Alves Fonseca, Raphael; Brito Pezzuti, Juarez Carlos

dc.creator	Alves Fonseca, Raphael
dc.creator	Brito Pezzuti, Juarez Carlos
dc.date	2013-07-22
dc.date.accessioned	2016-05-03T15:33:14Z
dc.date.available	2016-05-03T15:33:14Z
dc.identifier	http://revistas.ucr.ac.cr/index.php/rbt/article/view/11094
dc.identifier	10.15517/rbt.v61i1.11094
dc.identifier.uri	https://hdl.handle.net/10669/27437
dc.description	En pequeños asentamientos rurales, la adquisición de proteína animal está estrechamente relacionada con actividades de subsistencia, y su hábitos alimentares son determinados por la disponibilidad y diversidad de estos recursos. Este estudio examinó el consumo de pescado, caza y animales domésticos en siete comunidades tradicionales ribereñas de la Floresta Nacional do Tapajós, ubicadas en la Amazonia oriental Brasileña. La análisis se basa en los supuestos de modelos de la amplitud de la dieta y la teoría de forrajeo óptimo, se comparó la amplitud de dieta en siete comunidades ribereñas en periodo seco y lluvioso. La recolección de datos se realizó en cuatro viajes, dos en la temporada de lluvias y dos en la estación seca en el 2010, mediante entrevistas semi-estructuradas. El pescado fue consumido en el 60.4% de las comidas, siendo la fuente de proteína animal más consumida. Un total de 11 especies de animales silvestres y 46 especies de pescado fueron documentadas y la preferencia en el consumo cayó sobre T. pecari, C. paca y Hydrochoerus hidrochaeris y la preferencia por el consumo de pescado cayó sobre Plagioscion spp. Astronotus spp., Cichla spp. y Leporinus spp.	es-ES
dc.description	In small-scale human settlements, the acquisition of animal protein is strictly related to subsistence activities, and yours dietary habits are determined by the availability and the selectivity permitted by the diversity of these resources. This study analyzed the consumption of animal protein sources in seven traditional riverine communities of the Tapajos National Forest, located in Eastern Brazilian Amazonia, considering fish, game meat and domestic animals. The analysis of animal protein consumption was based on the assumptions of the diet breadth model and the Optimal Foraging Theory. We compared diet breadths between communities and between rainy and dry seasons. The study focused on seven traditional riverside communities, six of them distributed along the right bank of the Tapajos River and one on the right bank of the Cupari River. Data collection was performed in four fields trips, two in the rainy season (May and July) and two in the dry season (September and November) in 2010. Data were collected through semi-structured interviews where the informant mentioned the source of animal protein consumed in the last three meals and which would be consumed at the next meal, if possible. We carried out a total of 470 interviews, where we documented 1 512 meals, and in only 12% of the meals there was no consumption of any animal protein source. The fish was consumed in 60.4% of the meals, being the most important source of animal protein consumed, differing significantly from other protein sources (χ²=23.79, df=5, p<0.001). A total of 11 species of wild animals and 46 species of fish were consumed. The choice in the consumption of game meat consisted on Tayassu pecari, Hydrochoerus hidrochaeris and Cuniculus paca, while the preference for fish consumption included Plagioscion spp., Astronotus spp., Cichla spp. and Leporinus spp.. The Simpson index did not vary significantly between the rainy and dry season (N=6, t=1.25, p=0.267) or between communities (N=6, t=5, p=0.42), although São Francisco das Chagas have significantly higher consumption of game meat (χ²=370.41, df=25, p<0.001). Fishing is an activity of paramount importance to these communities, and factors that lead to decreased availability of fish may lead to subsequent increase in hunting pressure. For the conservation of preserve of both wildlife natural resources and practices of subsistence of riverine communities of the Tapajós National Forest, it is necessary to ensure the maintenance of fish stocks and the protection of the Tapajós River areas large enough to maintain viable populations of wild animals and more tolerant to hunting and habitat loss.	en-US
dc.format	application/pdf
dc.language	eng
dc.publisher	Universidad de Costa Rica	en-US
dc.rights	Copyright (c) 2014 International Journal of Tropical Biology and Conservation	en-US
dc.source	Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 61 (1) March 2013	en-US
dc.source	Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 61 (1) March 2013	es-ES
dc.source	Revista Biología Tropical; Vol. 61 (1) March 2013	pt-PT
dc.source	2215-2075
dc.source	0034-7744
dc.source	10.15517/rbt.v61i1
dc.subject	dietary breadth	en-US
dc.subject	fish	en-US
dc.subject	game meat	en-US
dc.subject	tapajós national forest	en-US
dc.subject	traditional riverine communities	en-US
dc.subject	amplitud de la dieta	es-ES
dc.subject	carne de caza	es-ES
dc.subject	comunidades tradicionales ribereñas	es-ES
dc.subject	floresta nacional do tapajós	es-ES
dc.subject	pescado	es-ES
dc.title	Dietary breadth of the animal protein consumed by riverine communities in the Tapajós National Forest, Brazil	es-ES
dc.title	Dietary breadth of the animal protein consumed by riverine communities in the Tapajós National Forest, Brazil	en-US
dc.type	artículo original

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