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Author Danby, Ryan K. ♦ Koh, Saewan ♦ Hik, David S. ♦ Price, Larry W.
Source SpringerLink
Content type Text
Publisher Springer Netherlands
File Format PDF
Copyright Year ©2011
Language English
Subject Domain (in DDC) Social sciences ♦ Public administration & military science ♦ Administration of economy & environment
Subject Keyword Tundra ♦ Yukon ♦ Climate change ♦ Arctic–alpine ♦ Community ecology ♦ Environment ♦ Physical Geography ♦ Meteorology/Climatology ♦ Environmental Engineering/Biotechnology ♦ Environmental Management ♦ Ecology
Abstract Repeat measurements from long-term plots provide precise data for studying plant community change. In 2010, we visited a remote location in Yukon, Canada, where a detailed survey of alpine tundra communities was conducted in 1968. Plant community composition was resurveyed on the same four slopes using the same methods as the original study. Species richness and diversity increased significantly over the 42 years and non-metric multidimensional scaling indicated that community composition had also changed significantly. However, the direction and magnitude of change varied with aspect. Dominant species were not replaced or eliminated but, instead, declined in relative importance. Fine-scale changes in vegetation were evident from repeat photography and dendro-ecological analysis of erect shrubs, supporting the community-level analysis. The period of study corresponds to a mean annual temperature increase of 2°C, suggesting that climate warming has influenced these changes.
ISSN 00447447
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2011-08-24
Publisher Place Dordrecht
e-ISSN 16547209
Journal AMBIO
Volume Number 40
Issue Number 6
Page Count 12
Starting Page 660
Ending Page 671

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Source: SpringerLink