气候变化领域集成服务门户(CCPortal): Fish diversity of Colombian Andes-Amazon streams at the end of conflict is a reference for conservation before increased land use

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DOI	10.1002/ece3.11046
	Fish diversity of Colombian Andes-Amazon streams at the end of conflict is a reference for conservation before increased land use
	Bogota-Gregory, Juan David; Jenkins, David G.; Acosta-Santos, Astrid; Cordoba, Edwin Agudelo
发表日期	2024
ISSN	2045-7758
起始页码	14
结束页码	3
卷号	14 期号:3
英文摘要	Reference conditions are difficult to find in the Anthropocene but essential for effective biodiversity conservation. Aquatic ecosystems in the Andes-Amazon transition zone of Colombia are now at high risk due to expanded human activities after peace agreements in 2016 ended armed conflict because lands formerly controlled by FARC and other armed groups are now prone to agricultural and urban expansion. Particularly, expanding human land use may reduce fish diversity across the altitudinal gradient, especially in the premontane streams (i.e., <500 m a.s.l.) because lands are more amenable to human use than at greater altitudes. We evaluated fish alpha-diversity (measured as species richness, total abundance, and effective species number) and beta-diversity (spatial and temporal) in 12 sites over 8 years bracketing the end of armed conflict. All alpha-diversity and beta-diversity analyses were evaluated relative to categorical altitude (< or >500 m) and continuous altitude. Strong differences in fish community structure among sites occurred as a function of altitude. Fish communities exhibit altitudinal biodiversity gradients that are consistent in space and time, and that need to be accounted for conservation and management considerations. Our results provide a reference to identify short- and long-term changes due to impending human land use at a critical moment for the conservation of tropical fish diversity. Similar studies in other areas of the upper Amazon Basin are needed to evaluate effects of subsequent human activities on diversity patterns and our study area to compare to reference conditions reported here.
英文关键词	abundance; altitudinal gradient; Amazon piedmont; beta diversity; effective diversity; land use; multivariate analysis; species richness
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:001184270100001
来源期刊	ECOLOGY AND EVOLUTION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300005
作者单位	State University System of Florida; University of Central Florida
推荐引用方式 GB/T 7714	Bogota-Gregory, Juan David,Jenkins, David G.,Acosta-Santos, Astrid,et al. Fish diversity of Colombian Andes-Amazon streams at the end of conflict is a reference for conservation before increased land use[J],2024,14(3).
APA	Bogota-Gregory, Juan David,Jenkins, David G.,Acosta-Santos, Astrid,&Cordoba, Edwin Agudelo.(2024).Fish diversity of Colombian Andes-Amazon streams at the end of conflict is a reference for conservation before increased land use.ECOLOGY AND EVOLUTION,14(3).
MLA	Bogota-Gregory, Juan David,et al."Fish diversity of Colombian Andes-Amazon streams at the end of conflict is a reference for conservation before increased land use".ECOLOGY AND EVOLUTION 14.3(2024).