globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13494
论文题名:
Stability in a changing world – palm community dynamics in the hyperdiverse western Amazon over 17 years
作者: Olivares I.; Svenning J.-C.; van Bodegom P.M.; Valencia R.; Balslev H.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期:3
起始页码: 1232
结束页码: 1239
语种: 英语
英文关键词: Arecaceae ; biodiversity ; climate change ; climatic records ; community ecology ; directional changes ; forest dynamics ; forest monitoring ; global change ; Yasuní National Park
Scopus关键词: Arecaceae
英文摘要: Are the hyperdiverse local forests of the western Amazon undergoing changes linked to global and local drivers such as climate change, or successional dynamics? We analyzed local climatic records to assess potential climatic changes in Yasuní National Park, Ecuador, and compared two censuses (1995, 2012) of a palm community to assess changes in community structure and composition. Over 17 years, the structure and composition of this palm community remained remarkably stable. Soil humidity was significantly lower and canopy conditions were significantly more open in 2012 compared to 1995, but local climatic records showed that no significant changes in precipitation, temperature or river level have occurred during the last decade. Thus, we found no evidence of recent directional shifts in climate or the palm community in Yasuní. The absence of changes in local climate and plant community dynamics in Yasuní contrasts with recent findings from eastern Amazon, where environmental change is driving significant changes in ecosystem dynamics. Our findings suggest that until now, local forests in the northwest Amazon may have escaped pressure from climate change. The stability of this rich palm community embedded in the hyperdiverse Yasuní National Park underlines its uniqueness as a sanctuary for the protection of Amazonian diversity from global change impacts. © 2016 John Wiley & Sons Ltd
资助项目: We thank Mayra Ninazunta, Nikolas Balslev, Frederik Bonde, Jairo Zambrano, Anelio Loor, and Javier Cuadros for their fieldwork assistance. We also thank two anonymous reviewers for making valuable suggestions on an earlier version of this paper. HB was supported by a grant from the Danish Natural Science Research Council (10-083348), and the fieldwork was funded by the FP7 PALMS Project (contract # 213631 to HB). JCS was supported by the European Research Council (ERC-2012-StG-310886-HISTFUNC).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61042
Appears in Collections:影响、适应和脆弱性

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作者单位: Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, Aarhus C, Denmark; Institute of Environmental Sciences CML, Leiden University, Einsteinweg 2, Leiden, Netherlands; Laboratorio de Ecología de Plantas, Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Av. 12 de Octubre 1076 y Roca, Quito, Ecuador; Institute of Systematic Botany, University of Zurich, Zollikerstrasse 107, Zurich, Switzerland

Recommended Citation:
Olivares I.,Svenning J.-C.,van Bodegom P.M.,et al. Stability in a changing world – palm community dynamics in the hyperdiverse western Amazon over 17 years[J]. Global Change Biology,2017-01-01,23(3)
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