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Bokhorst, Stef; Huiskes, Ad H L; Convey, Peter; Sinclair, Brent J; Lebouvier, Marc; Van de Vijver, Bart; Wall, Diana H (2011): Impacts of passive warming chambers on soil parameters in Antarctica [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.807810, Supplement to: Bokhorst, S et al. (2011): Microclimate impacts of passive warming methods in Antarctica: implications for climate change studies. Polar Biology, 34(10), 1421-1435, https://doi.org/10.1007/s00300-011-0997-y

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Abstract:
Passive chambers are used to examine the impacts of summer warming in Antarctica but, so far, impacts occurring outside the growing season, or related to extreme temperatures, have not been reported, despite their potentially large biological significance. In this review, we synthesise and discuss the microclimate impacts of passive warming chambers (closed, ventilated and Open Top Chamber-OTC) commonly used in Antarctic terrestrial habitats, paying special attention to seasonal warming, during the growing season and outside, extreme temperatures and freeze-thaw events. Both temperature increases and decreases were recorded throughout the year. Closed chambers caused earlier spring soil thaw (8-28 days) while OTCs delayed soil thaw (3-13 days). Smaller closed chamber types recorded the largest temperature extremes (up to 20°C higher than ambient) and longest periods (up to 11 h) of above ambient extreme temperatures, and even OTCs had above ambient temperature extremes over up to 5 consecutive hours. The frequency of freeze-thaw events was reduced by ~25%. All chamber types experienced extreme temperature ranges that could negatively affect biological responses, while warming during winter could result in depletion of limited metabolic resources. The effects outside the growing season could be as important in driving biological responses as the mean summer warming. We make suggestions for improving season-specific warming simulations and propose that seasonal and changed temperature patterns achieved under climate manipulations should be recognised explicitly in descriptions of treatment effects.
Related to:
Bokhorst, Stef; Huiskes, Ad H L; Convey, Peter; Aerts, Raf (2007): The effect of environmental change on vascular plant and cryptogam communities from the Falkland Islands and the Maritime Antarctic. BMC Ecology, 7(15), PMC2234391, https://doi.org/10.1186/1472-6785-7-15
Convey, Peter; Wynn-Williams, D D (2002): Antarctic soil nematode response to artificial climate amelioration. European Journal of Soil Biology, 38(3-4), 255-259, https://doi.org/10.1016/S1164-5563(02)01155-X
Huiskes, Ad H L; Lud, D; Moerdijk-Poortvliet, T C W (2001): Field research on the effects of UV-B filters on terrestrial Antarctic vegetation. 154(1-2), 75-86, https://doi.org/10.1023/A:1012923307870
Kennedy, Andrew D (1995): Simulated climate change: are passive greenhouses a valid microcosm for testing the biological effects of environmental perturbations? Global Change Biology, 1(1), 29-42, https://doi.org/10.1111/j.1365-2486.1995.tb00004.x
Sinclair, Brent J (2002): Effects of increased temperatures simulating climate change on terrestrial invertebrates on Ross Island, Antarctica. Pedobiologia, 46(2), 150-160, https://doi.org/10.1078/0031-4056-00121
Treonis, A M; Wall, Diana H; Virginia, R A (2002): Field and microcosm studies of decomposition and soil biota in a cold desert soil. Ecosystems, 5(2), 159-170, https://doi.org/10.1007/s10021-001-0062-8
Wynn-Williams, D D (1996): Response of pioneer soil microalgal colonists to environmental change in Antarctica. Microbial Ecology, 31(2), 177-188, https://doi.org/10.1007/BF00167863
Project(s):
International Polar Year (2007-2008) (IPY)
Coverage:
Median Latitude: -66.313075 * Median Longitude: -104.788713 * South-bound Latitude: -77.633000 * West-bound Longitude: 162.883000 * North-bound Latitude: -52.200000 * East-bound Longitude: -45.630000
Date/Time Start: 2003-11-01T00:00:00 * Date/Time End: 2006-02-28T00:00:00
Comment:
References of studies compiled in this paper are given above. Additionally, data of M. Lebouvier and B. Vd Vijver (unpublished) was used. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Bokhorst, S; Huiskes, AHL; Convey, P et al. (2011): (Table 5) Effects of open top chambers on soil moisture, relative humidity and photosynthetically active radiation. https://doi.org/10.1594/PANGAEA.807801
  2. Bokhorst, S; Huiskes, AHL; Convey, P et al. (2011): (Table 4) Annual date of soil thaw, soil surface degree day sums and the number of freeze-thaw events in Antarctic warming studies. https://doi.org/10.1594/PANGAEA.807800
  3. Bokhorst, S; Huiskes, AHL; Convey, P et al. (2011): (Table 2) Effects of different passive warming chambers on soil surface temperatures in the Antarctic. https://doi.org/10.1594/PANGAEA.807798
  4. Bokhorst, S; Huiskes, AHL; Convey, P et al. (2011): (Table 3) Range of temperature extremes at the soil surface within and outside warming chambers in the Antarctic. https://doi.org/10.1594/PANGAEA.807799