The Harvesting of the Endangered Palm Euterpe edulis in the Brazilian Atlantic Forest: The Case of Linear Canopy Openings  

作　　者：Pablo José Francisco Pena Rodrigues Mariana de Andrade Iguatemy Talita Reis Pablo José Francisco Pena Rodrigues;Mariana de Andrade Iguatemy;Talita Reis(Instituto de Pesquisas Jardim Botanico do Rio de Janeiro, Rua Pacheco Leã,o, Rio de Janeiro, Brazil)

机构地区：[1]Instituto de Pesquisas Jardim Botanico do Rio de Janeiro, Rua Pacheco Leã,o, Rio de Janeiro, Brazil

出　　处：《Journal of Geoscience and Environment Protection》2023年第12期151-162,共12页地球科学和环境保护期刊（英文）

摘　　要：The palm Euterpe edulis was historically very exploited by humans and even today, many individuals are cut down by collectors to harvest the edible palm hearts. The ecological aspects of this anthropogenic pressure and its related effects are poorly understood. Here we investigate if linear canopy openings in a fragment of Brazilian Atlantic Forest can cause edge effects and facilitate predatory harvesting by humans. We sampled in Tinguá Biological Reserve (Southeastern Brazil) native palm populations at forest edges adjacent to two linear canopy openings, and in the forest interior far from any edge. Our 8-year monitoring showed that the linear canopy openings negatively affected the palm populations reducing its density and regeneration mainly on edges, but no local extinction was observed. Thus, the direct human impact from harvesting, adverse survival conditions on edges and interspecific competition causes population declines with no local extinction, so this suggests that E. edulis may resist even under strong anthropogenic pressure.The palm Euterpe edulis was historically very exploited by humans and even today, many individuals are cut down by collectors to harvest the edible palm hearts. The ecological aspects of this anthropogenic pressure and its related effects are poorly understood. Here we investigate if linear canopy openings in a fragment of Brazilian Atlantic Forest can cause edge effects and facilitate predatory harvesting by humans. We sampled in Tinguá Biological Reserve (Southeastern Brazil) native palm populations at forest edges adjacent to two linear canopy openings, and in the forest interior far from any edge. Our 8-year monitoring showed that the linear canopy openings negatively affected the palm populations reducing its density and regeneration mainly on edges, but no local extinction was observed. Thus, the direct human impact from harvesting, adverse survival conditions on edges and interspecific competition causes population declines with no local extinction, so this suggests that E. edulis may resist even under strong anthropogenic pressure.

关 键 词：EXTINCTION EXPLOITATION Forest Product Species Survival Sustainability 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]