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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 | |
| 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/300004 |
| 作者单位 | State University System of Florida; University of Central Florida |
| 推荐引用方式 GB/T 7714 | . 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 | (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 | "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). |
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