Title
Global change experiments : challenges and opportunities
Author
Faculty/Department
Faculty of Sciences. Biology
Publication type
article
Publication
Washington, D.C. ,
Subject
Biology
Human medicine
Source (journal)
Bioscience / American Institute of Biological Sciences. - Washington, D.C.
Volume/pages
65(2015) :9 , p. 922-931
ISSN
0006-3568
ISI
000361423400010
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Manipulation experiments are invaluable tools in global change ecology because they enable causal and process-based understanding. However, artifacts and inherent limitations can lead to misinterpretations. Across the wide range of approaches to set up such studies, we distill the main challenges associated with the imposed treatment(s), the spatial and time scale, proposing solutions and outlining the limitations in interpreting and extrapolating results. The inherent trade-offs between experimental realism (facilitating extrapolation) and control (facilitating the attribution of observed responses) resonate throughout this review. The focus on realism or control determines which issues become more important and how they should be handled. For example, covarying factors such as temperature and moisture can be explicitly separated to attribute effects more precisely but could also be left uncontrolled to increase realism. Ultimately, combining results across gradients of scale and control, including the use of natural laboratories, stimulates fundamental understanding, enabling more confident predictions of responses to global change.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/4229b4/d151ac52.pdf
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