This is a Preprint and has not been peer reviewed. This is version 1 of this Preprint.
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Abstract
Climate and ecosystems exhibit dynamic behavior across various timescales, but existing studies often focus on singular timescales when examining ecosystem responses to climate. Here we develop a conceptual and analytical framework using spectral analysis that examines a continuum of timescales, from hundreds to hundreds of thousands of years. By comparing power spectra of vegetation turnover and climate in the last 1.1 million years, we observe that turnover is in step with climate at intermediate frequencies (10-2 to 10-3 years-1) but is decoupled from climate at high frequencies (> 10-2 years-1) and low frequencies (<10-3 years-1), with a relationship that varies by latitude. Climate decoupling at the highest frequencies highlights the possibility of widespread ecological transitions in the coming century as anthropogenic climate change outpaces the response time of plant communities.
DOI
https://doi.org/10.31223/X5S98P
Subjects
Earth Sciences
Keywords
Spectral power continuum, community turnover, climate variability, dynamic equilibrium, non-linear ecological dynamics, temporal beta diversity, Vegetation, community turnover, Climate variability, dynamic equilibrium, non-linear ecological dynamics, temporal beta diversity, Vegetation
Dates
Published: 2024-07-12 08:27
Last Updated: 2024-07-12 15:27
License
CC-By Attribution-NonCommercial-NoDerivatives 4.0 International
Additional Metadata
Data Availability (Reason not available):
Data and code needed to reproduce all analyses are available on Zenodo (doi: 10.5281/zenodo.12726799).
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