public read cn=submitters,o=unaffiliated,dc=ecoinformatics,dc=org all Prof Ary Hoffmann University of Melbourne

BIO 21 30 Flemington Rd Parkville Victoria 3052 Australia

03 8344 2282 ary@unimelb.edu.au Research Centre for Applied Alpine Ecology, LaTrobe University

Melbourne Victoria 3086 Australia

1380258578636 Custodian/Steward 1380258697508 Plot Network Leader James Camac Quantitative & Applied Ecology Group, The School of Botany, The University of Melbourne 0400972404 james.camac@gmail.com Content Provider The objective of the Australian Tundra Experiment is to assess the likely response of vegetation and invertebrates to temperature increases attained through passive warming. The Australian Tundra Experiment follows the International Tundra Experiment (ITEX) protocol (Molau & Mølgaard 1996, Jarrad et al. 2009) which focuses on the growth and phenological responses of cold adapted vascular plant species to environmental change, specifically, to an increase in summer (growing season) temperatures. In addition to monitoring vegetation responses, the experimental warming chambers were used to monitor the response of invertebrates to warming. Warming is achieved using hexagonal fibreglass open-top warming chambers (OTCs). The OTCs were set up in December 2003 at 4 sites within a 2 × 4.5 km area of the Bogong High Plains, Victoria, Australia, known as Rocky Knobs (36.90ºS, 147.27ºE). Two of the sites were established on vegetation that had been recently burnt by the 2003 bushfires. The sites are at approximately 1700 m above sea level and generally have snow cover of variable depth for 3 to 4 months each year (June-July to September-October). At each site, permanent plots of 1m2 were selected to include as many of the common vascular grassland species as possible. Treatments were then allocated at random for a total of 40 control and 40 warmed plots. This dataset contains microclimate data for a subset of plots from 6-06-2004 to 18-04-2013. 0602 ANZSRC-FOR On plot weather Climate change LTERN Monitoring Themes Atmosphere > Atmospheric Temperature Biosphere > Terrestrial Ecosystems > Alpine/Tundra Land Surface > Land Temperature > Land Surface Temperature GCMD CC-BY-4_0 Spatial coordinates for site names are available at https://www.ltern.org.au/knb/metacat/ltern6.244/html (Victorian Alpine Plot Network (ATEX): Plot Details - Spatial Coordinates, South-east Highlands, Australia). 2004-06-06 2013 Bogong High Plains, Victoria, Australia 147.263077 147.287443 -36.88496 -36.909953 Dr Henrik Wahren Research Centre for Applied Alpine Ecology, La Trobe University

Bundoora Victoria 3086 Victoria

03 57 775 116 C.Wahren@latrobe.edu.au

Data loggers were installed initially next to each of 24 plots. The number of loggers was reduced to 10 in 2008.

Onset Hobo H8 Outdoor Industrial four channel data loggers (Onset Computer Corporation, Bourne, MA, USA). At the beginning of the experiment in 2004, 24 Hobo H8 Outdoor/Industrial 4-channel data loggers were set up next to 24 plots across the 4 Australian ITEX sites. ITEX1U and ITEX2U (the two unburnt sites) each had 8 loggers: half randomly assigned to control (un-warmed) plots and half randomly assigned to OTC (warmed) plots. The two burnt sites (ITEX3B and ITEX4B) also had loggers, but because these sites had fewer plots and because of financial constraints only 4 loggers per site were installed (2 controls and 2 OTCs per site). Each data logger used four sensors: ambient temperatures at 5 cm above the ground surface, soil surface temperatures, and soil temperatures 5 cm and 10 cm below ground. The soil surface sensor was positioned in an inter-tussock gap. Temperatures were recorded hourly. On 24/10/2008, due to problems with loggers, we replaced all Hobo H8 Outdoor/Industrial 4-channel loggers with a reduced set of HOBO U12 4-Channel External Data loggers (U12-008). Because analyses of the data showed that temperatures at the two unburnt sites were similar, as were temperatures at the two burnt sites, the new loggers were put in only at ITEX1U and ITEX3B. All data were screened and missing or false readings replaced with NA. The data file contains hourly temperature readings from 06-06-2004 to 18-04-2013. The University of Melbourne Data Owner 1380258697508 Plot Network Leader The experiment was initiated with funds from an Australia Research Council Linkage Grant for the period 2003-2006. A second Linkage Grant provided funds to continue the project from 2008 to 2012. Since 2012 this project has been part of the Long Term Ecological Research Network (LTERN). This work was supported by the Australian Government’s Terrestrial Ecosystems Research Network (www.tern.org.au) – an Australian research infrastructure facility established under the National Collaborative Research Infrastructure Strategy and Education Infrastructure Fund–Super Science Initiative through the Department of Industry, Innovation, Science, Research and Tertiary Education. ATEX Plot Microclimate log This data file contains hourly temperature readings from 06-06-2004 to 18-04-2013. ITEXloggers.csv.zip application/zip ecogrid://knb/datalibrarian.66.1 cn=allusers,o=unaffiliated,dc=ecoinformatics,dc=org read cn=submitters,o=unaffiliated,dc=ecoinformatics,dc=org all Site Site ID (ITEX1U, ITEX2U, ITEX3B, ITEX4B; U=unburnt, B=burnt) ITEX1U ITEX site 1 - unburnt ITEX2U ITEX site 2 - unburnt ITEX3B ITEX site 3 - burnt ITEX4B ITEX site 4 - burnt Plot Plot ID Integer Treatment Code identifying warming treatment OTC Open Top Chamber (Warmed) CTL Control Date Date observation recorded DD/MM/YYYY Hour Hour observation recorded hh CAmbient Ambient temperature (ºC) 5 cm above ground surface celsius real CSurface Soil surface temperature (ºC) celsius real CTemp_5cm Soil surface temperature (ºC) celsius real CTemp_10cm Soil temperature (ºC) 10 cm below surface celsius real