Rates of palaeoecological change can inform ecosystem restoration

Finsinger, Walter; Bigler, Christian; Schwörer, Christoph; Tinner, Willy (2024). Rates of palaeoecological change can inform ecosystem restoration. Biogeosciences, 21(7), pp. 1629-1638. European Geosciences Union 10.5194/bg-21-1629-2024

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Accelerations of ecosystem transformation raise concerns, to the extent that high rates of ecological change may be regarded amongst the most important ongoing imbalances in the Earth system. Here, we used high-resolution pollen and diatom assemblages and associated ecological indicators (the sum of tree and shrub pollen and diatom-inferred total phosphorus concentrations as proxies for tree cover and lake-water eutrophication, respectively) spanning the past 150 years to emphasize that rate-of-change records based on compositional data may document transformations having substantially different causes and outcomes. To characterize rates of change also in terms of other key ecosystem features, we quantified for both ecological indicators: (i) the percentage of change per unit time, (ii) the percentage of change relative to a reference level, and (iii) the rate of percentage change per unit time relative to a reference period, taking into account the irregular spacing of palaeoecological data. These measures document how quickly specific facets of nature changed, their trajectory, as well as their status in terms of palaeoecological indicators. Ultimately, some past accelerations of community transformation may document the potential of ecosystems to rapidly recover important ecological attributes and functions. In this context, insights from palaeoecological records may be useful to accelerate ecosystem restoration.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Palaeoecology
10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)

UniBE Contributor:

Schwörer, Christoph, Tinner, Willy

Subjects:

500 Science > 580 Plants (Botany)
500 Science > 560 Fossils & prehistoric life

ISSN:

1726-4189

Publisher:

European Geosciences Union

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

08 Jul 2024 09:42

Last Modified:

08 Jul 2024 09:42

Publisher DOI:

10.5194/bg-21-1629-2024

BORIS DOI:

10.48350/198505

URI:

https://boris.unibe.ch/id/eprint/198505

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