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WFRF:(Hollister Robert D)
 

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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004929naa a2200685 4500
001oai:DiVA.org:umu-64036
003SwePub
008130114s2013 | |||||||||||000 ||eng|
009oai:slubar.slu.se:39235
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-640362 URI
0247 a https://doi.org/10.1111/gcb.120282 DOI
0247 a https://res.slu.se/id/publ/392352 URI
040 a (SwePub)umud (SwePub)slu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a for2 swepub-publicationtype
1001 a Bokhorst, Stef Frederiku Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management4 aut0 (Swepub:slu)49248
2451 0a Variable temperature effects of Open Top Chambers at polar and alpine sites explained by irradiance and snow depth
264 c 2012-10-18
264 1b Wiley,c 2013
338 a print2 rdacarrier
520 a Environmental manipulation studies are integral to determining biological consequences of climate warming. Open Top Chambers (OTCs) have been widely used to assess summer warming effects on terrestrial biota, with their effects during other seasons normally being given less attention even though chambers are often deployed year-round. In addition, their effects on temperature extremes and freeze-thaw events are poorly documented. To provide robust documentation of the microclimatic influences of OTCs throughout the year, we analysed temperature data from 20 studies distributed across polar and alpine regions. The effects of OTCs on mean temperature showed a large range (-0.9 to 2.1 degrees C) throughout the year, but did not differ significantly between studies. Increases in mean monthly and diurnal temperature were strongly related (R-2 = 0.70) with irradiance, indicating that PAR can be used to predict the mean warming effect of OTCs. Deeper snow trapped in OTCs also induced higher temperatures at soil/vegetation level. OTC-induced changes in the frequency of freeze-thaw events included an increase in autumn and decreases in spring and summer. Frequency of high-temperature events in OTCs increased in spring, summer and autumn compared with non-manipulated control plots. Frequency of low-temperature events was reduced by deeper snow accumulation and higher mean temperatures. The strong interactions identified between aspects of ambient environmental conditions and effects of OTCs suggest that a detailed knowledge of snow depth, temperature and irradiance levels enables us to predict how OTCs will modify the microclimate at a particular site and season. Such predictive power allows a better mechanistic understanding of observed biotic response to experimental warming studies and for more informed design of future experiments. However, a need remains to quantify OTC effects on water availability and wind speed (affecting, for example, drying rates and water stress) in combination with microclimate measurements at organism level.
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Klimatforskning0 (SwePub)105012 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Climate Research0 (SwePub)105012 hsv//eng
650 7a LANTBRUKSVETENSKAPERx Lantbruksvetenskap, skogsbruk och fiskex Skogsvetenskap0 (SwePub)401042 hsv//swe
650 7a AGRICULTURAL SCIENCESx Agriculture, Forestry and Fisheriesx Forest Science0 (SwePub)401042 hsv//eng
653 a alpine
653 a Antarctic
653 a Arctic
653 a climate change
653 a extreme weather
653 a freeze-thaw
653 a PAR
653 a snow
653 a temperature variation
653 a tundra
653 a warming experiment
653 a wind
7001 a Huiskes, Ad4 aut
7001 a Aerts, Rien4 aut
7001 a Convey, Peter4 aut
7001 a Cooper, Elisabeth J4 aut
7001 a Dalen, Linda4 aut
7001 a Erschbamer, Brigitta4 aut
7001 a Gudmundsson, Jon4 aut
7001 a Hofgaard, Annika4 aut
7001 a Hollister, Robert D4 aut
7001 a Johnstone, Jill4 aut
7001 a Jonsdottir, Ingibjorg S4 aut
7001 a Lebouvier, Marc4 aut
7001 a Van De Vijver, Bart4 aut
7001 a Wahren, Carl-Henrik4 aut
7001 a Dorrepaal, Ellenu Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Arcum4 aut0 (Swepub:umu)eldo0004
7102 a Sveriges lantbruksuniversitetb Institutionen för skogens ekologi och skötsel4 org
7102 a Sveriges lantbruksuniversitet
7730 t Global Change Biologyd : Wileyg 19:1, s. 64-74q 19:1<64-74x 1354-1013x 1365-2486
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-64036
8564 8u https://doi.org/10.1111/gcb.12028
8564 8u https://res.slu.se/id/publ/39235

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