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Can pollution bias peatland palaeoclimate reconstruction?

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Title Can pollution bias peatland palaeoclimate reconstruction?
 
Creator Payne, R.J.
Mitchell, E.A.D.
Hung Nguyen-Viet
Gilbert, D.
 
Subject ENVIRONMENT
 
Description Peatland testate amoebae are widely used to reconstruct paleohydrological/climatic changes, but many species are also known to respond to pollutants. Peatlands around the world have been exposed to anthropogenic and intermittent natural pollution through the late Holocene. This raises the question: can pollution lead to changes in the testate amoeba paleoecological record that could be erroneously interpreted as a climatic change? To address this issue we applied testate amoeba transfer functions to the results of experiments adding pollutants (N, P, S, Pb, O3) to peatlands and similar ecosystems. We found a significant effect in only one case, an experiment in which N and P were added, suggesting that pollution-induced biases are limited. However, we caution researchers to be aware of this possibility when interpreting paleoecological records. Studies characterising the paleoecological response to pollution allow pollution impacts to be tracked and distinguished from climate change.
Peer Review
 
Date 2012-10-29T20:05:49Z
2012-10-29T20:05:49Z
2012-09-15
 
Type Journal Article
 
Identifier Payne, R.J., Mitchell, E.A.D., Hung Nguyen-Viet and Gilbert, D. 2012. Can pollution bias peatland palaeoclimate reconstruction? Quaternary Research 78(2): 170-173.
https://hdl.handle.net/10568/24641
 
Language en
 
Source Quaternary Research