A review of open top chamber (OTC) performance across the ITEX Network

Robert D. Hollister*, Cassandra Elphinstone, Greg H.R. Henry, Anne D. Bjorkman, Kari Klanderud, Robert G. Björk, Mats P. Björkman, Stef Bokhorst, Michele Carbognani, Elisabeth J. Cooper, Ellen Dorrepaal, Sarah C. Elmendorf, Ned Fetcher, Elise C. Gallois, Jón Guoðmundsson, Nathan C. Healey, Ingibjörg Svala Jónsdóttir, Ingeborg Jenneken Klarenberg, Steven F. Oberbauer, Petr MacekJeremy L. May, Alessandro Mereghetti, Ulf Molau, Alessandro Petraglia, Riikka Rinnan, Christian Rixen, Philip A. Wookey

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

Abstract

Open top chambers (OTCs) were adopted as the recommended warmingmechanism by the International Tundra Experiment network in the early 1990s. Since then, OTCs have been deployed across the globe. Hundreds of papers have reported the impacts of OTCs on the abiotic environment and the biota. Here, we review the impacts of the OTC on the physical environment, with comments on the appropriateness of using OTCs to characterize the response of biota to warming. The purpose of this review is to guide readers to previously published work and to provide recommendations for continued use of OTCs to understand the implications of warming on low stature ecosystems. In short, the OTC is a useful tool to experimentally manipulate temperature; however, the characteristics and magnitude of warming varies greatly in different environments; therefore, it is important to document chamber performance to maximize the interpretation of biotic response.When coupled with long-term monitoring, warming experiments are a valuable means to understand the impacts of climate change on natural ecosystems.

Original languageEnglish
Pages (from-to)331-344
Number of pages14
JournalArctic Science
Volume9
Issue number2
DOIs
Publication statusPublished - Jun 2023

Bibliographical note

Publisher Copyright:
© 2023, Canadian Science Publishing. All rights reserved.

Other keywords

  • Alpine
  • Arctic
  • Large-scale coordinated experiment
  • Tundra
  • Warming experiment

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