气候变化领域集成服务门户(CCPortal): Impoverishment of local wild resources in western Amazonia: a large-scale community survey of local ecological knowledge

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DOI	10.1088/1748-9326/ab83ad
	Impoverishment of local wild resources in western Amazonia: a large-scale community survey of local ecological knowledge
	Coomes O.T.; Takasaki Y.; Abizaid C.
发表日期	2020
ISSN	17489318
卷号	15 期号:7
英文摘要	A growing number of studies point to the depletion of flora and fauna along rivers of the Brazilian Amazon but the status of wild resources over large areas in Western Amazonia remains poorly known. In this paper we report on findings from the Peruvian Amazon based on the first large-scale community survey that uses local ecological knowledge to assess the presence of indicator species and expected harvest yields of game, fish and timber along four major rivers. Our findings from nearly 700 communities suggest that the forest and lakes near riverine communities have been impoverished over the past 50 years, especially of vulnerable species of high commercial value. A zone of species depletion is detected around the two major regional cities of Iquitos and Pucallpa as well as around an important oil town. Local extirpations are common though some recovery is noted for specific fish and timber species. Expected yields are falling and evidence is found for harvesting of previously non-preferred species. Newer communities face lower initial availability of wild resources and forest impoverishment is driven by market demand over subsistence needs. Our findings illustrate the value of drawing on local ecological knowledge and the importance of considering historical baseline conditions in assessments of the fate of wild resources in tropical forests. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	fish; game; Peru; rain forests; species conservation; timber
语种	英语
scopus关键词	Ecology; Fish; Surveys; Timber; Base-line conditions; Brazilian Amazon; Indicator species; Local ecological knowledge; Peruvian amazons; Regional cities; Timber species; Tropical forest; Forestry; community structure; fauna; fish; flora; knowledge; natural resource; resource management; river water; tropical forest; Amazonia; Peru
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153945
作者单位	Department of Geography, McGill University, Montreal, QC, Canada; Graduate School of Economics, University of Tokyo, Tokyo, Japan; Department of Geography and Planning, School of the Environment, University of Toronto, Toronto, Canada
推荐引用方式 GB/T 7714	Coomes O.T.,Takasaki Y.,Abizaid C.. Impoverishment of local wild resources in western Amazonia: a large-scale community survey of local ecological knowledge[J],2020,15(7).
APA	Coomes O.T.,Takasaki Y.,&Abizaid C..(2020).Impoverishment of local wild resources in western Amazonia: a large-scale community survey of local ecological knowledge.Environmental Research Letters,15(7).
MLA	Coomes O.T.,et al."Impoverishment of local wild resources in western Amazonia: a large-scale community survey of local ecological knowledge".Environmental Research Letters 15.7(2020).